{"id":4645,"date":"2021-11-10T15:23:52","date_gmt":"2021-11-10T08:23:52","guid":{"rendered":"http:\/\/mese.vn\/?p=4645"},"modified":"2025-09-27T11:42:32","modified_gmt":"2025-09-27T04:42:32","slug":"khac-phuc-su-co-song-hai-va-nhieu-dien-tu-do-su-dung-bien-tan","status":"publish","type":"post","link":"https:\/\/tofu.isoinaction.com\/mesevn\/vi\/khac-phuc-su-co-song-hai-va-nhieu-dien-tu-do-su-dung-bien-tan.html","title":{"rendered":"Kh\u1eafc Ph\u1ee5c: s\u1ef1 c\u1ed1 s\u00f3ng h\u00e0i v\u00e0 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb do s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n"},"content":{"rendered":"<p>R\u1ea5t nhi\u1ec1u c\u00f4ng tr\u00ecnh t\u00f2a nh\u00e0, nh\u00e0 m\u00e1y c\u00f4ng nghi\u1ec7p, d\u1ef1 \u00e1n c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng\u2026khi s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1, \u0111\u1eb7c bi\u1ec7t khi t\u1ed5ng c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n tr\u00ean t\u1ed5ng c\u00f4ng su\u1ea5t c\u1ee7a c\u00f4ng tr\u00ecnh c\u00f3 t\u1ef7 l\u1ec7 cao. C\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u01b0 m\u00e1y t\u00ednh, \u0111\u00e8n LED\u2026 \u0111\u1ec1u g\u00e2y ra m\u00e9o s\u00f3ng h\u00e0i cho ngu\u1ed3n \u0111i\u1ec7n c\u00f4ng tr\u00ecnh.<\/p>\n<p>C\u00e1c hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u s\u00f3ng \u0111i\u1ec7n t\u1eeb EMC, ch\u1ea5t l\u01b0\u1ee3ng s\u00f3ng h\u00e0i g\u00e2y ra nhi\u1ec5u c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, t\u00edn hi\u1ec7u c\u00f3 \u0111\u1ed9 nh\u1eady cao, g\u00e2y \u1ea3nh h\u01b0\u1edfng t\u1edbi ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh khi l\u00e0m vi\u1ec7c c\u1ee7a h\u1ec7 Camera, \u00e2m thanh, \u0111i\u1ec1u khi\u1ec3n\u2026<\/p>\n<p>V\u1edbi hi\u1ec3u bi\u1ebft v\u00e0 kinh nghi\u1ec7m l\u00e2u n\u0103m v\u1ec1 qu\u1ea3n tr\u1ecb ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n n\u0103ng v\u00e0 nhi\u1ec5u s\u00f3ng \u0111i\u1ec7n t\u1eeb, ch\u00fang t\u00f4i cung c\u1ea5p d\u1ecbch v\u1ee5 k\u1ef9 thu\u1eadt:<\/p>\n<p>&#8211; V\u1edbi c\u00f4ng tr\u00ecnh m\u1edbi: \u0111\u01b0a ra t\u01b0 v\u1ea5n thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng c\u1ea5p \u0111i\u1ec7n v\u00e0 bi\u1ebfn t\u1ea7n sao cho kh\u00f4ng g\u1eb7p ph\u1ea3i nh\u1eefng s\u1ef1 ki\u1ec7n \u0111\u00e1ng ti\u1ebfc v\u1ec1 s\u00f3ng h\u00e0i v\u00e0 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb. L\u1ecdc s\u00f3ng h\u00e0i v\u00e0 x\u1eed l\u00fd nhi\u1ec5u bi\u1ebfn t\u1ea7n<\/p>\n<p>&#8211; V\u1edbi c\u00f4ng tr\u00ecnh hi\u1ec7n h\u1eefu: \u0110o ki\u1ec3m ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n n\u0103ng v\u00e0 \u0111\u01b0a ra ph\u01b0\u01a1ng ph\u00e1p l\u1ecdc s\u00f3ng h\u00e0i v\u00e0 x\u1eed l\u00fd nhi\u1ec5u bi\u1ebfn t\u1ea7n<\/p>\n<p>\u0110\u1ec3 l\u00e0 r\u00f5 h\u01a1n v\u1ec1 nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y, ch\u00fang t\u00f4i c\u00f3 b\u00e0i vi\u1ebft ph\u00e2n t\u00edch d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n<h1><strong>1. S\u00f3ng h\u00e0i l\u00e0 g\u00ec?<\/strong><\/h1>\n<p>S\u00f3ng h\u00e0i l\u00e0 m\u1ed9t d\u1ea1ng nhi\u1ec5u kh\u00f4ng mong mu\u1ed1n, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp t\u1edbi ch\u1ea5t l\u01b0\u1ee3ng l\u01b0\u1edbi \u0111i\u1ec7n v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c ch\u00fa \u00fd t\u1edbi khi t\u1ed5ng c\u00e1c d\u00f2ng \u0111i\u1ec7n h\u00e0i cao h\u01a1n m\u1ee9c \u0111\u1ed9 gi\u1edbi h\u1ea1n cho ph\u00e9p. D\u00f2ng \u0111i\u1ec7n h\u00e0i l\u00e0 d\u00f2ng \u0111i\u1ec7n c\u00f3 t\u1ea7n s\u1ed1 l\u00e0 b\u1ed9i c\u1ee7a t\u1ea7n s\u1ed1 c\u01a1 b\u1ea3n. V\u00ed d\u1ee5 d\u00f2ng 250Hz tr\u00ean l\u01b0\u1edbi 50Hz l\u00e0 s\u00f3ng h\u00e0i b\u1eadc 5. D\u00f2ng \u0111i\u1ec7n 250Hz l\u00e0 d\u00f2ng n\u0103ng l\u01b0\u1ee3ng kh\u00f4ng s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c v\u1edbi c\u00e1c thi\u1ebft b\u1ecb tr\u00ean l\u01b0\u1edbi. V\u00ec v\u1eady, n\u00f3 s\u1ebd b\u1ecb chuy\u1ec3n ho\u00e1 sang d\u1ea1ng nhi\u1ec7t n\u0103ng v\u00e0 g\u00e2y t\u1ed5n hao.<\/p>\n<p>S\u00f3ng h\u00e0i \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng b\u1edfi dao \u0111\u1ed9ng tr\u00ean ph\u1ed5 t\u1ea7n s\u1ed1 c\u00f4ng nghi\u1ec7p c\u01a1 b\u1ea3n. Th\u00e0nh ph\u1ea7n s\u00f3ng h\u00e0i trong ngu\u1ed3n AC \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 th\u00e0nh ph\u1ea7n sin c\u1ee7a m\u1ed9t chu k\u1ef3 s\u00f3ng c\u00f3 t\u1ea7n s\u1ed1 b\u1eb1ng s\u1ed1 nguy\u00ean l\u1ea7n t\u1ea7n s\u1ed1 c\u01a1 b\u1ea3n c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<p>fh = h.fb<\/p>\n<p>trong \u0111\u00f3: h l\u00e0 s\u1ed1 nguy\u00ean d\u01b0\u01a1ng.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4646 size-full\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/1.png\" alt=\"\" width=\"363\" height=\"523\" srcset=\"https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/1.png 363w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/1-244x351.png 244w\" sizes=\"auto, (max-width: 363px) 100vw, 363px\" \/><\/p>\n<h1><strong>2. Nguy\u00ean nh\u00e2n g\u00e2y ra s\u00f3ng h\u00e0i<\/strong><\/h1>\n<p>Nguy\u00ean nh\u00e2n g\u00e2y ra s\u00f3ng h\u00e0i l\u00e0 do c\u00e1c ph\u1ee5 t\u1ea3i d\u1ea1ng phi tuy\u1ebfn trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n. \u0110i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o c\u1ee7a t\u1ea3i phi tuy\u1ebfn l\u00e0 d\u1ea1ng h\u00ecnh sin nh\u01b0ng d\u00f2ng qua n\u00f3 c\u00f3 d\u1ea1ng kh\u00f4ng sin.<\/p>\n<p>M\u1ed9t d\u1ea1ng s\u00f3ng b\u1ea5t k\u1ef3 l\u00e0 t\u1ed5ng c\u1ee7a c\u00e1c d\u1ea1ng s\u00f3ng h\u00ecnh sin. Khi \u0111\u1ed3ng nh\u1ea5t t\u1eeb chu k\u1ef3 n\u00e0y sang chu k\u1ef3 kh\u00e1c n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c mi\u00eau t\u1ea3 nh\u01b0 nh\u1eefng s\u00f3ng sin c\u01a1 b\u1ea3n v\u00e0 b\u1ed9i s\u1ed1 c\u1ee7a t\u1ea7n s\u1ed1 c\u01a1 b\u1ea3n, c\u00f3 ngh\u0129a l\u00e0 bao g\u1ed3m s\u00f3ng sin c\u01a1 b\u1ea3n v\u00e0 chu\u1ed7i c\u1ee7a c\u00e1c d\u1ea1ng s\u00f3ng sin h\u00e0i b\u1eadc cao, g\u1ecdi l\u00e0 chu\u1ed7i Fourier.<\/p>\n<p>Qu\u00e1 tr\u00ecnh t\u00ednh to\u00e1n c\u00f3 th\u1ec3 \u0111\u1ed9c l\u1eadp v\u1edbi m\u1ed7i h\u00e0i ri\u00eang. K\u1ebft qu\u1ea3 t\u00ednh to\u00e1n c\u1ee7a m\u1ed7i t\u1ea7n s\u1ed1 s\u1ebd \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u00e0o m\u1ed9t d\u1ea1ng c\u1ee7a chu\u1ed7i Fourier \u0111\u1ec3 c\u00f3 d\u1ea1ng s\u00f3ng ra t\u1ed5ng qu\u00e1t n\u1ebfu c\u1ea7n. Th\u00f4ng th\u01b0\u1eddng ch\u1ec9 c\u1ea7n quan t\u00e2m \u0111\u1ebfn bi\u00ean \u0111\u1ed9 c\u1ee7a s\u00f3ng h\u00e0i.<\/p>\n<p>Khi c\u1ea3 n\u1eeda chu k\u1ef3 \u00e2m, d\u01b0\u01a1ng c\u1ee7a m\u1ed9t d\u1ea1ng s\u00f3ng c\u00f3 d\u1ea1ng \u0111\u1ed3ng nh\u1ea5t, chu\u1ed7i Fourier ch\u1ec9 ch\u1ee9a h\u00e0i b\u1eadc l\u1ebb. V\u00ec h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb sinh ra s\u00f3ng h\u00e0i th\u00f4ng th\u01b0\u1eddng c\u00f3 d\u1ea1ng s\u00f3ng \u0111\u1ed3ng nh\u1ea5t n\u00ean trong th\u1ef1c t\u1ebf ta ch\u1ec9 c\u1ea7n quan t\u00e2m \u0111\u1ebfn s\u00f3ng h\u00e0i b\u1eadc l\u1ebb 3,5,7,&#8230;<\/p>\n<p><strong>C\u00e1c ngu\u1ed3n sinh ra s\u00f3ng h\u00e0i:<\/strong><\/p>\n<p>C\u00e1c t\u1ea3i c\u00f4ng nghi\u1ec7p: C\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t, bi\u1ebfn t\u1ea7n, l\u00f2 h\u1ed3 quang, m\u00e1y h\u00e0n, b\u1ed9 kh\u1edfi \u0111\u1ed9ng \u0111i\u1ec7n t\u1eed, \u0111\u00f3ng m\u1ea1ch m\u00e1y bi\u1ebfn \u00e1p c\u00f4ng su\u1ea5t l\u1edbn\u2026<\/p>\n<p>C\u00e1c t\u1ea3i d\u00e2n d\u1ee5ng: \u0110\u00e8n ph\u00f3ng \u0111i\u1ec7n ch\u1ea5t kh\u00ed, tivi, m\u00e1y photocopy, m\u00e1y t\u00ednh, l\u00f2 vi s\u00f3ng\u2026<\/p>\n<p>V\u1edbi nhi\u1ec1u bi\u1ec7n ph\u00e1p kh\u00e1c nhau, ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 gi\u1ea3m m\u1ed9t s\u1ed1 s\u00f3ng h\u00e0i \u0111\u1ebfn m\u1ed9t gi\u00e1 tr\u1ecb nh\u1ecf kh\u00f4ng \u0111\u00e1ng k\u1ec3. Vi\u1ec7c kh\u1eed b\u1ecf ho\u00e0n to\u00e0n ch\u00fang t\u1ea5t nhi\u00ean kh\u00f4ng th\u1ec3 ho\u00e0n to\u00e0n th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c.<\/p>\n<p>Trong c\u00e1c nguy\u00ean nh\u00e2n k\u1ec3 tr\u00ean, bi\u1ebfn t\u1ea7n l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n h\u00e0ng \u0111\u1ea7u ph\u00e1t sinh s\u00f3ng h\u00e0i. Khi bi\u1ebfn t\u1ea7n \u0111i\u1ec1u khi\u1ec3n nhi\u1ec1u \u0111\u1ed9ng c\u01a1 c\u00f9ng l\u00fac, n\u1ebfu kh\u00f4ng c\u00f3 bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t s\u00f3ng h\u00e0i c\u00f3 th\u1ec3 l\u00e0m qu\u00e1 t\u1ea3i h\u1ec7 th\u1ed1ng \u0111i\u1ec7n, t\u0103ng c\u00f4ng su\u1ea5t nhu c\u1ea7u (power demand) v\u00e0 l\u00e0m m\u00e1y ng\u1eebng ch\u1ea1y (do ngu\u1ed3n b\u1ecb qu\u00e1 t\u1ea3i).<\/p>\n<p><strong>C\u00e1c lo\u1ea1i s\u00f3ng h\u00e0i m\u00e0 bi\u1ebfn t\u1ea7n t\u1ea1o ra:<\/strong><\/p>\n<ul>\n<li>6 pulse drive: 5,7,11,13,17,19<\/li>\n<li>12 pulse drive: 11,13,23,25<\/li>\n<li>18 pulse drive: 17,19,35,37<\/li>\n<\/ul>\n<p>Nguy\u00ean nh\u00e2n ch\u1ee7 y\u1ebfu g\u00e2y ra s\u00f3ng h\u00e0i d\u00f2ng \u0111i\u1ec7n c\u1ee7a c\u00e1c b\u1ed9 bi\u1ebfn t\u1ea7n n\u1eb1m \u1edf b\u1ed9 ch\u1ec9nh l\u01b0u \u0111\u1ea7u v\u00e0o. C\u00e1c b\u1ed9 ch\u1ec9nh l\u01b0u c\u1ea7u 3 pha n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi l\u01b0\u1edbi (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ch\u1ec9nh l\u01b0u 6-xung do \u0111i\u1ec7n \u00e1p m\u1ed9t chi\u1ec1u c\u00f3 6 \u0111\u1ec9nh nh\u1ea5p nh\u00f4 trong m\u1ed9t chu k\u1ef3 \u0111i\u1ec7n \u00e1p l\u01b0\u1edbi) c\u00f3 th\u1ec3 t\u1ea1o ra s\u00f3ng h\u00e0i d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o c\u00f3 THD l\u00ean t\u1edbi 135%. \u0110\u1ec3 bi\u1ebfn t\u1ea7n c\u00f3 s\u00f3ng h\u00e0i d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o th\u1ea5p ta c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn bi\u1ebfn t\u1ea7n v\u1edbi b\u1ed9 ch\u1ec9nh l\u01b0u \u0111\u1ea7u v\u00e0o c\u00f3 s\u00f3ng h\u00e0i th\u1ea5p. C\u00e1c b\u1ed9 ch\u1ec9nh l\u01b0u c\u00f3 s\u00f3ng h\u00e0i d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o th\u1ea5p hi\u1ec7n nay ph\u1ed5 bi\u1ebfn l\u00e0 ch\u1ec9nh l\u01b0u t\u00edch c\u1ef1c v\u00e0 c\u00e1c b\u1ed9 ch\u1ec9nh l\u01b0u nhi\u1ec1u xung.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4647\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Picture2.jpg\" alt=\"\" width=\"466\" height=\"200\" \/><\/p>\n<h1><strong>3. T\u00e1c h\u1ea1i c\u1ee7a s\u00f3ng h\u00e0i<\/strong><\/h1>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4648\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Picture3.png\" alt=\"\" width=\"624\" height=\"160\" \/><\/p>\n<p>S\u00f3ng h\u00e0i l\u00e0 d\u1ea1ng nhi\u1ec5u kh\u00f4ng mong mu\u1ed1n \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n n\u0103ng, xu\u1ea5t hi\u1ec7n khi s\u1eed d\u1ee5ng nh\u1eefng t\u1ea3i kh\u00f4ng tuy\u1ebfn t\u00ednh (bi\u1ebfn t\u1ea7n, b\u1ed9 chuy\u1ec3n \u0111i\u1ec7n th\u1ebf, UPS,\u2026) c\u00f3 t\u00e1c d\u1ee5ng r\u1ea5t x\u1ea5u \u0111\u1ebfn nh\u1eefng thi\u1ebft b\u1ecb, m\u00e1y m\u00f3c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nh\u00e0 m\u00e1y nh\u01b0:<\/p>\n<p>&#8211; S\u00f3ng h\u00e0i l\u00e0m cho c\u00e1p b\u1ecb qu\u00e1 nhi\u1ec7t, ph\u00e1 h\u1ecfng c\u00e1ch \u0111i\u1ec7n.<\/p>\n<p>&#8211; Gi\u1ea3m tu\u1ed5i th\u1ecd \u0111\u1ed9ng c\u01a1, g\u00e2y ra qu\u00e1 nhi\u1ec7t \u0111\u1ed9ng c\u01a1, g\u00e2y ti\u1ebfng \u1ed3n l\u1edbn khi v\u1eadn h\u00e0nh.<\/p>\n<p>&#8211; Qu\u00e1 t\u1ea3i CB, qu\u00e1 nhi\u1ec7t v\u00e0 g\u00e2y ch\u00e1y n\u1ed5 m\u00e1y bi\u1ebfn \u00e1p (trong khi l\u01b0\u1ee3ng \u0111i\u1ec7n s\u1eed d\u1ee5ng v\u1eabn nh\u1ecf h\u01a1n \u0111\u1ecbnh m\u1ee9c).<\/p>\n<p>&#8211; M\u00e1y c\u1eaft, Aptomat, c\u1ea7u ch\u00ec c\u00f3 th\u1ec3 b\u1ecb t\u00e1c \u0111\u1ed9ng m\u00e0 kh\u00f4ng r\u00f5 nguy\u00ean nh\u00e2n.<\/p>\n<p>&#8211; S\u00f3ng h\u00e0i g\u00e2y t\u00e1c h\u1ea1i nghi\u00eam tr\u1ecdng \u0111\u1ebfn t\u1ee5 b\u00f9 do ph\u00e1 h\u1ecfng ch\u1ea5t \u0111i\u1ec7n m\u00f4i, t\u1ee5 b\u1ecb ph\u1ed3ng, gi\u1ea3m tu\u1ed5i th\u1ecd t\u1ee5 b\u00f9, th\u1eadm ch\u00ed g\u00e2y n\u1ed5 t\u1ee5 b\u00f9 b\u1ea5t th\u01b0\u1eddng.<\/p>\n<p>&#8211; G\u00e2y nhi\u1ec5u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb vi\u1ec5n th\u00f4ng, h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng h\u00f3a nh\u01b0 PLC, Role,&#8230;<\/p>\n<p>&#8211; C\u00e1c thi\u1ebft b\u1ecb \u0111o ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng ch\u00ednh x\u00e1c.<\/p>\n<p><strong>EMC v\u00e0 bi\u1ebfn t\u1ea7n:<\/strong><\/p>\n<p>EMC : t\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n t\u1eeb EMC \u0111\u01b0\u1ee3c hi\u1ec3u nh\u01b0 l\u00e0 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb trong bi\u1ebfn t\u1ea7n kh\u00f4ng g\u00e2y ra can nhi\u1ec5u v\u01b0\u1ee3t qu\u00e1 m\u1ee9c cho ph\u00e9p \u0111\u1ed1i v\u1edbi ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb v\u00f4 tuy\u1ebfn \u0111i\u1ec7n t\u1eed kh\u00e1c, v\u1edbi l\u01b0\u1edbi \u0111i\u1ec7n v\u00e0 b\u1ea3n th\u00e2n bi\u1ebfn t\u1ea7n c\u0169ng ph\u1ea3i l\u00e0m vi\u1ec7c b\u00ecnh th\u01b0\u1eddng.<\/p>\n<p>T\u00e1c h\u1ea1i c\u1ee7a nhi\u1ec5u trong bi\u1ebfn t\u1ea7n:<\/p>\n<p>Trong bi\u1ebfn t\u1ea7n, t\u1ea7n s\u1ed1 \u0111\u00f3ng c\u1eaft c\u1ee7a c\u00e1c c\u00f4ng t\u1eafc ch\u1ea5t r\u1eafn (Mosfet, IGBT,\u2026) l\u00e0 kho\u1ea3ng 4-20KHz. T\u1ea7n s\u1ed1 n\u00e0y kh\u00f4ng ch\u1ec9 t\u1ea1o ra s\u00f3ng \u0111i\u1ec7n t\u1eeb m\u00e0 c\u00f2n c\u00f3 th\u1ec3 quay ng\u01b0\u1ee3c l\u1ea1i, t\u00e1c \u0111\u1ed9ng x\u1ea5u \u0111\u1ebfn l\u01b0\u1edbi \u0111i\u1ec7n (l\u00e0m b\u1ea9n l\u01b0\u1edbi \u0111i\u1ec7n) b\u1edfi c\u00e1c s\u00f3ng h\u00e0i b\u1eadc cao.<\/p>\n<p>B\u1eadc 3: t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng \u0111\u1eadp m\u1ea1ch.<\/p>\n<p>B\u1eadc 5: t\u1ea1o t\u1eeb tr\u01b0\u1eddng quay ng\u01b0\u1ee3c.<\/p>\n<p>B\u1eadc 7: t\u1ea1o t\u1eeb tr\u01b0\u1eddng quay thu\u1eadn.<\/p>\n<p>B\u1eadc 9: \u0111\u1ee9ng y\u00ean.<\/p>\n<p>Bi\u1ebfn t\u1ea7n c\u00f3 t\u1ea7n s\u1ed1 \u0111\u00f3ng ng\u1eaft PWM cao n\u00ean d\u00f2ng \u0111i\u1ec7n \u0111i qua d\u00e2y cable nh\u01b0 l\u00e0 m\u1ed9t \u0103ngten ph\u00e1t s\u00f3ng \u0111i\u1ec7n t\u1eeb cao, r\u1ea5t nguy hi\u1ec3m.<\/p>\n<p>V\u1ec1 m\u1eb7t c\u01a1: \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a \u0111\u1ed9ng c\u01a1, c\u00e1c thi\u1ebft b\u1ecb truy\u1ec1n \u0111\u1ed9ng, g\u00e2y l\u1ecfng \u1ed5 bi, k\u1ebft c\u1ea5u c\u01a1 kh\u00ed.<\/p>\n<p>V\u1ec1 m\u1eb7t \u0111i\u1ec7n: d\u00f2ng \u0111i\u1ec7n ch\u1ea1y trong m\u1eb7t t\u1eeb l\u00e0m \u0111\u1ed9ng c\u01a1 n\u00f3ng h\u01a1n, t\u1ed5n hao v\u1ec1 nhi\u1ec7t trong \u0111\u1ed9ng c\u01a1 s\u1ebd l\u1edbn, c\u00e1ch \u0111i\u1ec7n d\u1ec5 h\u1ecfng, ch\u00e1y, tu\u1ed5i th\u1ecd \u0111\u1ed9ng c\u01a1 s\u1ebd gi\u1ea3m.<\/p>\n<p>V\u1ec1 m\u1eb7t s\u1ee9c \u0111i\u1ec7n \u0111\u1ed9ng: e = L<\/p>\n<p>+N\u1ebfu \u0111\u1ed9 bi\u1ebfn thi\u00ean c\u1ee7a d\u00f2ng \u0111i\u1ec7n l\u1edbn s\u1ebd l\u00e0m cho t\u1eeb tr\u01b0\u1eddng c\u1ee7a d\u00e2y d\u1eabn ph\u00e1t ra c\u00e0ng l\u1edbn, l\u00e0m cho c\u00e1c thi\u1ebft b\u1ecb c\u00f3 v\u1eadt li\u1ec7u s\u1eaft \u1edf g\u1ea7n \u0111\u00f3 b\u1ecb nhi\u1ec5m t\u1eeb.<\/p>\n<p>+T\u1ea7n s\u1ed1 c\u00e0ng l\u1edbn s\u1ebd l\u00e0m cho d\u00e2y cable d\u1eabn nh\u01b0 m\u1ed9t \u0103ngten ph\u00e1t s\u00f3ng \u0111i\u1ec7n t\u1eeb g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c.<\/p>\n<p>+\u0110\u1ed9ng c\u01a1 c\u00e0ng l\u1edbn, t\u1eeb tr\u01b0\u1eddng c\u00e0ng m\u1ea1nh, \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb xung quanh.<\/p>\n<p>V\u1ec1 m\u1eb7t n\u0103ng l\u01b0\u1ee3ng:<\/p>\n<p>T\u1eeb tr\u01b0\u1eddng bi\u1ebfn thi\u00ean qua c\u00e1c v\u1ecf m\u00e1y s\u1ebd l\u00e0m n\u00f3ng v\u1ecf, t\u1ea1o ra \u0111i\u1ec7n \u00e1p t\u0129nh \u0111i\u1ec7n g\u00e2y gi\u1eadt \u0111i\u1ec7n.<\/p>\n<p>C\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eeb \u0111\u1eb7t g\u1ea7n s\u1ebd b\u1ecb s\u1ee9c \u0111i\u1ec7n \u0111\u1ed9ng l\u00e0m m\u1ea5t t\u00edn hi\u1ec7u, nhi\u1ec5u, d\u1ec5 h\u1ecfng do c\u00e1c thi\u1ebft b\u1ecb n\u00e0y r\u1ea5t nh\u1ea1y v\u1edbi xung \u0111i\u1ec7n \u00e1p.<\/p>\n<p>V\u1ec1 m\u1eb7t t\u00edn hi\u1ec7u analog:<\/p>\n<p>Do c\u00e1c c\u1ea3m bi\u1ebfn, c\u00e1c thi\u1ebft b\u1ecb ph\u1ea3n h\u1ed3i c\u00f3 gi\u00e1 tr\u1ecb r\u1ea5t b\u00e9, kho\u1ea3ng 60mv n\u00ean nhi\u1ec5u \u0111i\u1ec7n t\u1eeb s\u1ebd l\u00e0m thi\u1ebft b\u1ecb \u0111o b\u1ecb l\u1ed7i, g\u00e2y sai l\u1ec7ch t\u00edn hi\u1ec7u \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n.<\/p>\n<p>V\u1ec1 m\u1eb7t t\u00edn hi\u1ec7u Digital:<\/p>\n<p>G\u00e2y sai l\u1ec7ch m\u1ee9c logic, sai s\u00f3t bit tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n d\u1eabn \u0111\u1ebfn sai s\u00f3t to\u00e0n b\u1ed9 d\u1eef li\u1ec7u c\u1ea7n truy\u1ec1n.T\u00e1c h\u1ea1i l\u00e0 kh\u00f4ng t\u00ednh \u0111\u01b0\u1ee3c cho to\u00e0n h\u1ec7 th\u1ed1ng.<\/p>\n<h1><strong>4. Thi\u1ebft b\u1ecb \u0111o v\u00e0 gi\u1edbi h\u1ea1n s\u00f3ng h\u00e0i:<\/strong><\/h1>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-4649\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Picture4-1170x403.png\" alt=\"\" width=\"604\" height=\"208\" srcset=\"https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Picture4-1170x403.png 1170w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Picture4-640x220.png 640w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Picture4.png 1963w\" sizes=\"auto, (max-width: 604px) 100vw, 604px\" \/><\/p>\n<p style=\"text-align: center;\">Thi\u1ebft b\u1ecb \u0111o s\u00f3ng h\u00e0i<\/p>\n<p>\u0110\u1ec3 \u0111o s\u00f3ng h\u00e0i c\u1ea7n ph\u1ea3i c\u00f3 thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng. C\u00f3 m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb \u0111o s\u00f3ng h\u00e0i \u1edf m\u1ee9c \u0111\u1ed9 \u0111\u01a1n gi\u1ea3n d\u1ea1ng nh\u01b0 Ampe k\u00ecm c\u1ea7m tay gi\u00e1 kho\u1ea3ng t\u1eeb v\u00e0i tr\u0103m $, c\u0169ng c\u00f3 c\u00e1c thi\u1ebft b\u1ecb \u0111o v\u00e0 ph\u00e2n t\u00edch s\u00f3ng h\u00e0i c\u00f3 \u0111\u1ea7y \u0111\u1ee7 t\u00ednh n\u0103ng c\u1ea7n thi\u1ebft (nh\u01b0 h\u00ecnh \u1ea3nh minh h\u1ecda) nh\u01b0ng kh\u00e1 \u0111\u1eaft ti\u1ec1n kho\u1ea3ng t\u1eeb v\u00e0i ngh\u00ecn $. Do chi ph\u00ed \u0111\u1ea7u t\u01b0 thi\u1ebft b\u1ecb kh\u00e1 cao n\u00ean \u0111a ph\u1ea7n c\u00e1c nh\u00e0 m\u00e1y kh\u00f4ng trang b\u1ecb s\u1eb5n cho nh\u00e2n vi\u00ean k\u1ef9 thu\u1eadt \u0111i\u1ec7n. B\u00ean c\u1ea1nh \u0111\u00f3 \u0111\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c thi\u1ebft b\u1ecb \u0111o v\u00e0 ph\u00e2n t\u00edch s\u00f3ng h\u00e0i c\u1ea7n ph\u1ea3i c\u00f3 ki\u1ebfn th\u1ee9c chuy\u00ean s\u00e2u.<\/p>\n<p><strong>Gi\u1edbi h\u1ea1n s\u00f3ng h\u00e0i<\/strong><\/p>\n<p>\u0110\u1ec3 \u0111\u01b0a ra \u0111\u01b0\u1ee3c c\u00e1c gi\u1ea3i ph\u00e1p gi\u1ea3m thi\u1ec3u s\u00f3ng h\u00e0i, ch\u00fang ta c\u1ea7n n\u1eafm \u0111\u01b0\u1ee3c c\u00e1c ti\u00eau chu\u1ea9n quy \u0111\u1ecbnh ng\u01b0\u1ee1ng s\u00f3ng h\u00e0i :<\/p>\n<p>Do nh\u1eefng nguy h\u1ea1i c\u1ee7a s\u00f3ng h\u00e0i \u0111\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng \u0111i\u1ec7n n\u00ean vi\u1ec7c qu\u1ea3n l\u00fd s\u00f3ng h\u00e0i \u0111\u01b0\u1ee3c coi l\u00e0 tr\u00e1ch nhi\u1ec7m chung li\u00ean quan \u0111\u1ebfn c\u1ea3 \u0111\u01a1n v\u1ecb cung c\u1ea5p \u0111i\u1ec7n v\u00e0 kh\u00e1ch h\u00e0ng s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea3m v\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n \u0111\u00fang y\u00eau c\u1ea7u quy \u0111\u1ecbnh. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 quy \u0111\u1ecbnh v\u00e0 ti\u00eau chu\u1ea9n v\u1ec1 gi\u1edbi h\u1ea1n c\u1ee7a s\u00f3ng h\u00e0i.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4650\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Capture.png\" alt=\"\" width=\"953\" height=\"108\" srcset=\"https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Capture.png 953w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Capture-640x73.png 640w\" sizes=\"auto, (max-width: 953px) 100vw, 953px\" \/><\/p>\n<p>\u0110\u1ed9 bi\u1ebfn d\u1ea1ng s\u00f3ng h\u00e0i \u0111i\u1ec7n \u00e1p t\u1ed1i \u0111a cho ph\u00e9p:<\/p>\n<p>Theo T<em>h\u00f4ng t\u01b0 s\u1ed1: 30\/2019\/TT-BCT<\/em>:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4652\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Capture2.png\" alt=\"\" width=\"945\" height=\"160\" srcset=\"https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Capture2.png 945w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Capture2-640x108.png 640w\" sizes=\"auto, (max-width: 945px) 100vw, 945px\" \/><\/p>\n<p>Theo T<em>i\u00eau chu\u1ea9n IEEE 519<\/em><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4653\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Capture3.png\" alt=\"\" width=\"947\" height=\"192\" srcset=\"https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Capture3.png 947w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Capture3-640x130.png 640w\" sizes=\"auto, (max-width: 947px) 100vw, 947px\" \/><\/p>\n<p>\u0110\u1ed9 bi\u1ebfn d\u1ea1ng s\u00f3ng h\u00e0i d\u00f2ng \u0111i\u1ec7n:<\/p>\n<p>Theo T<em>h\u00f4ng t\u01b0 s\u1ed1: 30\/2019\/TT-BCT<\/em><\/p>\n<p>\u0110\u1ed9 bi\u1ebfn d\u1ea1ng s\u00f3ng h\u00e0i d\u00f2ng \u0111i\u1ec7n t\u1ed1i \u0111a cho ph\u00e9p \u0111\u1ed1i v\u1edbi nh\u00e0 m\u00e1y \u0111i\u1ec7n<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4654\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Capture4.png\" alt=\"\" width=\"948\" height=\"104\" srcset=\"https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Capture4.png 948w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Capture4-640x70.png 640w\" sizes=\"auto, (max-width: 948px) 100vw, 948px\" \/><\/p>\n<p>Bi\u1ebfn d\u1ea1ng s\u00f3ng h\u00e0i d\u00f2ng \u0111i\u1ec7n t\u1ed1i \u0111a cho ph\u00e9p \u0111\u1ed1i v\u1edbi ph\u1ee5 t\u1ea3i \u0111i\u1ec7n<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4655\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Capture5.png\" alt=\"\" width=\"945\" height=\"185\" srcset=\"https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Capture5.png 945w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Capture5-640x125.png 640w\" sizes=\"auto, (max-width: 945px) 100vw, 945px\" \/><\/p>\n<p>Theo <em>IEEE 519-2014:<\/em><\/p>\n<p>\u0110\u1ed9 bi\u1ebfn d\u1ea1ng d\u00f2ng cho ph\u00e9p v\u1edbi \u0111i\u1ec7n \u00e1p t\u1eeb 120V \u0111\u1ebfn 69kV:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4656\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Picture5.png\" alt=\"\" width=\"624\" height=\"265\" \/><\/p>\n<p>\u0110\u1ed9 bi\u1ebfn d\u1ea1ng d\u00f2ng cho ph\u00e9p v\u1edbi \u0111i\u1ec7n \u00e1p t\u1eeb tr\u00ean 161 kV:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4657\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Picture6.png\" alt=\"\" width=\"624\" height=\"254\" \/><\/p>\n<p>\u0110\u1ed9 bi\u1ebfn d\u1ea1ng d\u00f2ng cho ph\u00e9p v\u1edbi \u0111i\u1ec7n \u00e1p t\u1eeb 120V \u0111\u1ebfn 69kV:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4658\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Picture7.png\" alt=\"\" width=\"624\" height=\"212\" \/><\/p>\n<h1><strong>5. C\u00e1c gi\u1ea3i ph\u00e1p gi\u1ea3m thi\u1ec3u s\u00f3ng h\u00e0i c\u1ee7a MES-Engineering<\/strong><\/h1>\n<p><strong>\u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng \u0111ang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf:<\/strong><\/p>\n<p>Ngay t\u1eeb \u0111\u1ea7u, khi thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng \u0111i\u1ec7n cho nh\u00e0 m\u00e1y, c\u00e1c k\u1ef9 s\u01b0 \u0111i\u1ec7n ph\u1ea3i x\u00e1c \u0111\u1ecbnh lo\u1ea1i t\u1ea3i tuy\u1ebfn t\u00ednh, t\u1ea3i phi tuy\u1ebfn t\u00ednh v\u00e0 c\u00f4ng su\u1ea5t m\u1ed7i lo\u1ea1i. C\u0103n c\u1ee9 v\u00e0o c\u00f4ng su\u1ea5t m\u1ed7i lo\u1ea1i t\u1ea3i v\u00e0 y\u00eau c\u1ea7u \u0111\u1ed9 bi\u1ebfn d\u1ea1ng s\u00f3ng h\u00e0i \u0111\u1ec3 t\u00ednh to\u00e1n m\u00e1y bi\u1ebfn \u00e1p v\u00e0 c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c k\u00e8m theo.<\/p>\n<p><strong>\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n h\u1eefu:<\/strong> T\u00f9y v\u00e0o c\u00e1c m\u1ee9c c\u01b0\u1eddng \u0111\u1ed9, b\u1eadc h\u00e0i m\u00e0 ch\u00fang ta s\u1ebd c\u00f3 c\u00e1c gi\u1ea3i ph\u00e1p t\u01b0\u01a1ng \u1ee9ng:<\/p>\n<ul>\n<li><strong>V\u1edbi m\u1ee9c THDi th\u1ea5p<\/strong>\u00a0t\u01b0\u01a1ng \u1ee9ng THDi &lt; 5%, Kh\u00f4ng c\u1ea7n kh\u1eafc ph\u1ee5c, x\u1eed l\u00fd<\/li>\n<li><strong>V\u1edbi m\u1ee9c THDi <\/strong>\u00a0<strong>t\u1eeb 5% \u2026 \u2264 10%.<\/strong>\u00a0V\u1edbi m\u1ee9c s\u00f3ng h\u00e0i n\u00e0y th\u01b0\u1eddng ch\u01b0a \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u \u0111\u1ebfn thi\u1ebft b\u1ecb tr\u1eeb T\u1ee5 b\u00f9 c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng. Bi\u1ec7n ph\u00e1p \u01b0u ti\u00ean l\u00e0 s\u1eed d\u1ee5ng T\u1ee5 \u0111i\u1ec7n d\u00f9ng film v\u1edbi m\u00e0ng Polypropylene \u0111\u01b0\u1ee3c kim lo\u1ea1i h\u00f3a b\u1eb1ng h\u1ee3p kim Zn \/ Al.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4659\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Picture8.png\" alt=\"\" width=\"500\" height=\"355\" srcset=\"https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Picture8.png 500w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Picture8-494x351.png 494w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p style=\"text-align: center;\">S\u01a1 \u0111\u1ed3 l\u1eafp \u0111\u1eb7t t\u1ee5 b\u00f9<\/p>\n<ul>\n<li><strong>V\u1edbi m\u1ee9c THDi trung b\u00ecnh:<\/strong>\u00a0t\u01b0\u01a1ng \u1ee9ng THDi 10% \u2026 \u2264 20%.\u00a0V\u1edbi m\u1ee9c s\u00f3ng h\u00e0i n\u00e0y s\u1ebd \u1ea3nh h\u01b0\u1edfng l\u1edbn h\u1ec7 th\u1ed1ng t\u1ee5 b\u00f9 c\u00f4ng su\u1ea5t v\u00e0 c\u00e1c nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t c\u00f4ng ngh\u1ec7 cao, ch\u00ednh x\u00e1c. V\u1edbi m\u1ee9c s\u00f3ng h\u00e0i n\u00e0y c\u1ea7n ph\u1ea3i: l\u1eafp b\u1ed5 sung kh\u00e1ng \u0111i\u1ec7n cho bi\u1ebfn t\u1ea7n 6 xung ho\u1eb7c thay th\u1ebf b\u1eb1ng c\u00e1c bi\u1ebfn t\u1ea7n 12 xung tr\u1edf l\u00ean; l\u1eafp b\u1ed5 sung cu\u1ed9n kh\u00e1ng cho h\u1ec7 th\u1ed1ng t\u1ee5 b\u00f9 c\u00f4ng su\u1ea5t.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4660\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Picture10.jpg\" alt=\"\" width=\"327\" height=\"226\" \/><\/p>\n<p style=\"text-align: center;\">Cu\u1ed9n kh\u00e3ng cho bi\u1ebfn b\u1ea7n Nidec<\/p>\n<ul>\n<li><strong>V\u1edbi m\u1ee9c THDi : S\u1eed d\u1ee5ng b\u1ed9 l\u1ecdc b\u1ecb \u0111\u1ed9ng ho\u1eb7c ch\u1ee7 \u0111\u1ed9ng. <\/strong>V\u1edbi m\u1ee9c THDi &gt; 20% tr\u00ean h\u1ec7 th\u1ed1ng th\u01b0\u1eddng g\u00e2y n\u00ean c\u00e1c MCB t\u00e1c \u0111\u1ed9ng sai, m\u00e1y bi\u1ebfn \u00e1p qu\u1ea3 t\u1ea3i, \u0111\u1ed9ng c\u01a1 rung l\u1eafc, PLC thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i b\u1ea5t th\u01b0\u1eddng, t\u1ed5n th\u1ea5t \u0111i\u1ec7n n\u0103ng v\u00e0 \u0111\u1eb7c bi\u1ec7t c\u00e1c t\u1ee5 b\u00f9 b\u1ecb ph\u1ed3ng, n\u1ed5. \u0110\u1ec3 gi\u1ea3i quy\u1ebft tri\u1ec7t \u0111\u1ec3 trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y c\u1ea7n ph\u1ea3i d\u00f9ng b\u1ed9 l\u1ecdc h\u00e0i t\u00edch c\u1ef1c. B\u1ed9 l\u1ecdc s\u00f3ng h\u00e0i t\u00edch c\u1ef1c AHF l\u00e0 gi\u1ea3i ph\u00e1p ho\u00e0n ch\u1ec9nh nh\u1ea5t \u0111\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n. V\u1edbi nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng ph\u00e2n t\u00edch b\u1eadc d\u00f2ng h\u00e0i, t\u1ea1o d\u00f2ng h\u00e0i c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nh\u01b0ng ng\u01b0\u1ee3c c\u1ef1c t\u00ednh \u0111\u1ec3 tri\u1ec7t ti\u00eau d\u00f2ng h\u00e0i, hi\u1ec7u qu\u1ea3 l\u00ean \u0111\u1ebfn 97%.<\/li>\n<\/ul>\n<p style=\"text-align: center;\">\n<p>Ngo\u00e0i ra ch\u00fang ta c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 l\u1ecdc b\u1ecb \u0111\u1ed9ng. Ph\u00e2n t\u00edch d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o c\u1ee7a c\u00e1c b\u1ed9 ch\u1ec9nh l\u01b0u ki\u1ec3u 6 xung l\u1eafp cho c\u00e1c bi\u1ebfn t\u1ea7n ta th\u1ea5y c\u00f3 c\u00e1c th\u00e0nh ph\u1ea7n s\u00f3ng h\u00e0i b\u1eadc 5, b\u1eadc 7 v\u00e0 b\u1eadc 11 l\u00e0 l\u1edbn nh\u1ea5t. Do v\u1eady c\u00f3 th\u1ec3 thi\u1ebft k\u1ebf c\u00e1c b\u1ed9 l\u1ecdc l\u1ecdc ri\u00eang t\u1eebng th\u00e0nh ph\u1ea7n s\u00f3ng h\u00e0i n\u00e0y v\u00e0 ph\u01b0\u01a1ng \u00e1n \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn l\u00e0 s\u1eed d\u1ee5ng ba m\u1ea1ch l\u1ecdc c\u1ed9ng h\u01b0\u1edfng ki\u1ec3u L-C c\u00f3 t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng t\u01b0\u01a1ng \u1ee9ng b\u1eb1ng 5 l\u1ea7n, 7 l\u1ea7n v\u00e0 11 l\u1ea7n t\u1ea7n s\u1ed1 l\u01b0\u1edbi. \u01afu \u0111i\u1ec3m c\u1ee7a ph\u01b0\u01a1ng \u00e1n n\u00e0y l\u00e0 \u0111\u01a1n gi\u1ea3n v\u00e0 c\u00f3 \u0111\u1ed9 tin c\u1eady cao, \u0111\u1ea3m b\u1ea3o l\u1ecdc \u0111\u01b0\u1ee3c c\u00e1c th\u00e0nh ph\u1ea7n s\u00f3ng h\u00e0i \u0111\u00e3 thi\u1ebft k\u1ebf. Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a ph\u01b0\u01a1ng \u00e1n n\u00e0y l\u00e0 hi\u1ec7u qu\u1ea3 l\u1ecdc gi\u1ea3m khi t\u1ea7n s\u1ed1 l\u01b0\u1edbi thay \u0111\u1ed5i, c\u00e1c ph\u1ea7n t\u1eed c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn, c\u1ed3ng k\u1ec1nh n\u00ean gi\u00e1 th\u00e0nh c\u0169ng kh\u00f4ng nh\u1ecf v\u00e0 n\u00f3 ch\u1ec9 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 c\u00f4ng su\u1ea5t r\u1ea5t l\u1edbn nh\u01b0 c\u00e1c l\u00f2 n\u1ea5u, luy\u1ec7n th\u00e9p,\u2026<\/p>\n<p><strong>\u0110\u1ed1i v\u1edbi bi\u1ebfn t\u1ea7n ta c\u00f3 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3m thi\u1ec3u s\u00f3ng h\u00e0i nh\u01b0:<\/strong><\/p>\n<p><em>S\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n v\u1edbi b\u1ed9 ch\u1ec9nh l\u01b0u t\u00edch c\u1ef1c<\/em><\/p>\n<p>B\u1ed9 ch\u1ec9nh l\u01b0u t\u00edch c\u1ef1c v\u1edbi nhi\u1ec1u \u01b0u \u0111i\u1ec3m n\u1ed5i tr\u1ed9i l\u00e0 d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o v\u1edbi m\u1ee9c \u0111\u1ed9 s\u00f3ng h\u00e0i th\u1ea5p, cho ph\u00e9p bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng theo c\u1ea3 hai chi\u1ec1u v\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng hi\u1ec7n nay l\u00e0 l\u1ef1a ch\u1ecdn \u01b0a th\u00edch cho nhi\u1ec1u \u1ee9ng d\u1ee5ng s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n trong c\u00f4ng nghi\u1ec7p. V\u1ec1 m\u1eb7t ph\u00e1t th\u1ea3i s\u00f3ng h\u00e0i, c\u00e1c b\u1ed9 ch\u1ec9nh l\u01b0u t\u00edch c\u1ef1c c\u00f3 m\u1ee9c ph\u00e1t th\u1ea3i s\u00f3ng h\u00e0i th\u1ea5p v\u1edbi THD&lt;4% n\u00ean n\u00f3 \u0111\u00e1p \u1ee9ng cho t\u1ea5t c\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng v\u00e0 h\u1ec7 th\u1ed1ng \u0111i\u1ec7n c\u00f3 y\u00eau c\u1ea7u kh\u1eaft khe nh\u1ea5t v\u1ec1 m\u1ee9c \u0111\u1ed9 ph\u00e1t th\u1ea3i s\u00f3ng h\u00e0i. Nh\u01b0\u1ee3c \u0111i\u1ec3m duy nh\u1ea5t c\u1ee7a c\u00e1c b\u1ed9 ch\u1ec9nh l\u01b0u t\u00edch c\u1ef1c l\u00e0 gi\u00e1 th\u00e0nh kh\u00e1 cao v\u00e0 khi kh\u00f4ng s\u1eed d\u1ee5ng nh\u1eefng \u01b0u th\u1ebf kh\u00e1c ngo\u00e0i \u01b0u th\u1ebf v\u1ec1 m\u1ee9c \u0111\u1ed9 ph\u00e1t th\u1ea3i s\u00f3ng h\u00e0i th\u1ea5p th\u00ec n\u00f3 th\u01b0\u1eddng kh\u00f4ng \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn cho c\u00e1c b\u1ed9 bi\u1ebfn t\u1ea7n.<\/p>\n<p><em>S\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n v\u1edbi b\u1ed9 ch\u1ec9nh l\u01b0u nhi\u1ec1u xung<\/em><\/p>\n<p>B\u1ed9 ch\u1ec9nh l\u01b0u nhi\u1ec1u xung \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch t\u1ea1o ra c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p ba pha nh\u01b0ng l\u1ec7ch nhau m\u1ed9t g\u00f3c b\u1eb1ng m\u1ed9t ph\u1ea7n nguy\u00ean l\u1ea7n c\u1ee7a g\u00f3c d\u1eabn trong ch\u1ec9nh l\u01b0u 6 xung. V\u00ec ch\u1ec9nh l\u01b0u 6 xung c\u00f3 g\u00f3c d\u1eabn l\u00e0 60 n\u00ean n\u1ebfu ta t\u1ea1o ra hai h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o ba pha l\u1ec7ch nhau m\u1ed9t g\u00f3c b\u1eb1ng 30 \u0111\u1ed9 (60\/2) ta s\u1ebd t\u1ea1o ra \u0111\u01b0\u1ee3c ch\u1ec9nh l\u01b0u 12 xung v\u00e0 n\u1ebfu t\u1ea1o ra ba h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p ba pha l\u1ec7ch nhau 20 \u0111\u1ed9 (60\/3) ta s\u1ebd c\u00f3 ch\u1ec9nh l\u01b0u 18 xung. \u0110\u1ec3 t\u1ea1o ra h\u1ec7 th\u1ed1ng hai \u0111i\u1ec7n \u00e1p ba pha l\u1ec7ch nhau 30o c\u1ee7a ch\u1ec9nh l\u01b0u 12 xung ta s\u1eed d\u1ee5ng bi\u1ebfn \u00e1p \u0111\u1ea7u v\u00e0o v\u1edbi hai cu\u1ed9n th\u1ee9 c\u1ea5p trong \u0111\u00f3 m\u1ed9t cu\u1ed9n \u0111\u1ea5u sao v\u00e0 m\u1ed9t cu\u1ed9n \u0111\u1ea5u tam gi\u00e1c. Tr\u00ean h\u00ecnh l\u00e0 d\u1ea1ng s\u00f3ng d\u00f2ng di\u1ec7n c\u1ee7a ch\u1ec9nh l\u01b0u 12 xung, d\u00f2ng \u0111i\u1ec7n c\u1ee7a t\u1eebng h\u1ec7 th\u1ed1ng \u0111i\u1ec7n ba pha n\u00e0y v\u1eabn c\u00f3 t\u1ef7 l\u1ec7 s\u00f3ng h\u00e0i cao (THD = 76%) nh\u01b0 tr\u01b0\u1eddng h\u1ee3p ch\u1ec9nh l\u01b0u s\u00e1u xung nh\u01b0ng khi c\u1ed9ng l\u1ea1i qua bi\u1ebfn \u00e1p th\u00ec d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o c\u1ee7a bi\u1ebfn \u00e1p c\u00f3 t\u1ef7 l\u1ec7 s\u00f3ng h\u00e0i th\u1ea5p (THD = 12%). T\u0103ng gi\u00e1 tr\u1ecb \u0111i\u1ec7n c\u1ea3m \u0111\u1ea7u v\u00e0o t\u1eebng nh\u00e1nh ta c\u00f3 th\u1ec3 gi\u1ea3m tr\u1ecb s\u1ed1 THD d\u00f2ng t\u1ed5ng c\u1ed9ng h\u01a1n n\u1eefa nh\u01b0ng gi\u00e1 tr\u1ecb THD hi\u1ec7u qu\u1ea3 nh\u1ea5t v\u1edbi ch\u1ec9nh l\u01b0u 12 xung l\u00e0 kho\u1ea3ng 10%. V\u1edbi ch\u1ec9nh l\u01b0u 18 xung, 24 xung c\u00e1ch l\u00e0m c\u0169ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0ng vi\u1ec7c \u0111\u1ea5u n\u1ed1i c\u00e1c cu\u1ed9n \u0111\u1ea7u ra c\u1ee7a bi\u1ebfn \u00e1p s\u1eed d\u1ee5ng c\u00e1ch \u0111\u1ea5u zic-zac ph\u1ee9c t\u1ea1p h\u01a1n nhi\u1ec1u so v\u1edbi tr\u01b0\u1eddng h\u1ee3p ch\u1ec9nh l\u01b0u 12 xung.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4662\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Picture12.png\" alt=\"\" width=\"624\" height=\"239\" \/><\/p>\n<p style=\"text-align: center;\">Ch\u1ec9nh l\u01b0u 12 xung<\/p>\n<p><em>D\u1ea1ng s\u00f3ng d\u00f2ng \u0111i\u1ec7n c\u1ee7a ch\u1ec9nh l\u01b0u 12 xung<\/em><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4663\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Picture13.png\" alt=\"\" width=\"360\" height=\"360\" srcset=\"https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Picture13.png 360w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Picture13-351x351.png 351w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Picture13-200x200.png 200w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><\/p>\n<p style=\"text-align: center;\">S\u1eed d\u1ee5ng c\u00e1c cu\u1ed9n c\u1ea3m<\/p>\n<p>Ph\u01b0\u01a1ng \u00e1n \u0111\u01a1n gi\u1ea3n nh\u1ea5t \u0111\u1ec3 gi\u1ea3m s\u00f3ng h\u00e0i d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o c\u1ee7a c\u00e1c bi\u1ebfn t\u1ea7n l\u00e0 l\u1eafp c\u00e1c cu\u1ed9n c\u1ea3m \u0111\u1ea7u v\u00e0o ho\u1eb7c cu\u1ed9n c\u1ea3m trong m\u1ea1ch m\u1ed9t chi\u1ec1u trung gian c\u1ee7a bi\u1ebfn t\u1ea7n. Gi\u00e1 tr\u1ecb \u0111i\u1ec7n c\u1ea3m c\u00e0ng t\u0103ng th\u00ec t\u1ef7 l\u1ec7 s\u00f3ng h\u00e0i c\u00e0ng gi\u1ea3m. V\u1edbi quan h\u1ec7 c\u1ee7a t\u1ef7 l\u1ec7 s\u00f3ng h\u00e0i theo t\u00edch c\u1ee7a gi\u00e1 tr\u1ecb \u0111i\u1ec7n c\u1ea3m v\u00e0 c\u00f4ng su\u1ea5t \u0111\u1ed9ng c\u01a1, ta th\u1ea5y gi\u00e1 tr\u1ecb \u0111i\u1ec7n c\u1ea3m t\u0103ng s\u1ebd l\u00e0m THD gi\u1ea3m hi\u1ec7u qu\u1ea3 nh\u1ea5t t\u1edbi kho\u1ea3ng 40%. T\u1eeb kho\u1ea3ng THD d\u01b0\u1edbi 30% ph\u1ea3i t\u0103ng gi\u00e1 tr\u1ecb \u0111i\u1ec7n c\u1ea3m nhi\u1ec1u nh\u01b0ng kh\u00f4ng l\u00e0m THD gi\u1ea3m nhi\u1ec1u. H\u01a1n n\u1eefa vi\u1ec7c l\u1eafp th\u00eam cu\u1ed9n kh\u00e1ng xoay chi\u1ec1u \u1edf \u0111\u1ea7u v\u00e0o c\u1ee7a bi\u1ebfn t\u1ea7n s\u1ebd l\u00e0m gi\u1ea3m \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o, c\u1ea3 cu\u1ed9n kh\u00e1ng xoay chi\u1ec1u v\u00e0 cu\u1ed9n kh\u00e1ng trong m\u1ea1ch m\u1ed9t chi\u1ec1u trung gian s\u1ebd l\u00e0m gi\u1ea3m \u0111\u00e1p \u1ee9ng \u0111\u1ed9ng c\u1ee7a bi\u1ebfn t\u1ea7n v\u1edbi t\u1ea3i thay \u0111\u1ed5i n\u00ean vi\u1ec7c l\u1eafp cu\u1ed9n kh\u00e1ng ch\u1ec9 s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3m t\u1ed5ng s\u00f3ng h\u00e0i t\u1edbi m\u1ee9c THD \u1edf 40% t\u1edbi 30% m\u00e0 kh\u00f4ng l\u1ef1a ch\u1ecdn cho tr\u01b0\u1eddng h\u1ee3p y\u00eau c\u1ea7u th\u1ea5p h\u01a1n v\u00ec c\u1ea3 l\u00fd do k\u1ef9 thu\u1eadt v\u00e0 kinh t\u1ebf. V\u00ec l\u00fd do n\u00e0y ph\u01b0\u01a1ng \u00e1n s\u1eed d\u1ee5ng cu\u1ed9n kh\u00e1ng l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho c\u00e1c h\u1ec7 th\u1ed1ng cung c\u1ea5p \u0111i\u1ec7n c\u00f3 t\u1ef7 l\u1ec7 ph\u1ee5 t\u1ea3i bi\u1ebfn t\u1ea7n d\u01b0\u1edbi 25% t\u1ed5ng ph\u1ee5 t\u1ea3i. Khi t\u1ef7 l\u1ec7 ph\u1ee5 t\u1ea3i bi\u1ebfn t\u1ea7n l\u1edbn h\u01a1n ta ph\u1ea3i xem x\u00e9t ph\u01b0\u01a1ng \u00e1n k\u1ebft h\u1ee3p cu\u1ed9n c\u1ea3m v\u1edbi d\u1ecbch pha \u0111i\u1ec7n \u00e1p.<\/p>\n<p><em>K\u1ebft h\u1ee3p cu\u1ed9n c\u1ea3m v\u1edbi d\u1ecbch pha \u0111i\u1ec7n \u00e1p<\/em><\/p>\n<p>Ph\u01b0\u01a1ng \u00e1n d\u1ecbch pha \u0111i\u1ec7n \u00e1p c\u00f3 c\u00e1ch ti\u1ebfp c\u1eadn t\u01b0\u01a1ng t\u1ef1 ph\u01b0\u01a1ng \u00e1n ch\u1ec9nh l\u01b0u 12 xung l\u00e0 t\u1ea1o ra hai \u0111i\u1ec7n \u00e1p ba pha l\u1ec7ch nhau 30 \u0111\u1ed9. C\u00e1c ph\u1ee5 t\u1ea3i bi\u1ebfn t\u1ea7n trong h\u1ec7 th\u1ed1ng s\u1ebd \u0111\u01b0\u1ee3c ph\u00e2n chia th\u00e0nh hai nh\u00e1nh c\u1ea5p b\u1edfi hai h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p ba pha l\u1ec7ch nhau 30 \u0111\u1ed9. Kh\u00e1c v\u1edbi ch\u1ec9nh l\u01b0u 12 xung l\u00e0 ph\u01b0\u01a1ng \u00e1n n\u00e0y c\u00e1c ch\u1ec9nh l\u01b0u 6 xung kh\u00f4ng c\u1ea5p \u0111i\u1ec7n cho m\u1ed9t m\u1ea1ch DC chung m\u00e0 nhi\u1ec1u m\u1ea1ch DC kh\u00e1c nhau n\u00ean \u0111\u00f2i h\u1ecfi ng\u01b0\u1eddi thi\u1ebft k\u1ebf ph\u1ea3i am hi\u1ec3u ho\u1ea1t \u0111\u1ed9ng c\u1ee7a to\u00e0n h\u1ec7 th\u1ed1ng \u0111\u1ec3 ph\u00e2n chia t\u1ea3i v\u00e0o hai nh\u00e1nh \u0111i\u1ec7n \u00e1p ba pha sao cho c\u00e2n b\u1eb1ng nh\u1ea5t.<\/p>\n<p><em>S\u1eed d\u1ee5ng cu\u1ed9n kh\u00e1ng AC DC Reactor cho bi\u1ebfn t\u1ea7n Nidec:<\/em><\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-4664\" src=\"http:\/\/mese.vn\/wp-content\/uploads\/2021\/11\/Picture14-910x523.png\" alt=\"\" width=\"604\" height=\"347\" srcset=\"https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Picture14-910x523.png 910w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Picture14-611x351.png 611w, https:\/\/tofu.isoinaction.com\/mesevn\/wp-content\/uploads\/sites\/194\/2021\/11\/Picture14.png 1627w\" sizes=\"auto, (max-width: 604px) 100vw, 604px\" \/>Cu\u1ed9n kh\u00e1ng v\u00e0 bi\u1ebfn t\u1ea7n Nidec<\/p>\n<p style=\"text-align: left;\">Th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n c\u1ee7a cu\u1ed9n kh\u00e1ng th\u00ec \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb 3 cu\u1ed9n d\u00e2y \u0111\u1ed3ng \u0111\u01b0\u1ee3c qu\u1ea5n tr\u00ean l\u00f5i th\u00e9p c\u00f3 t\u00e1c d\u1ee5ng nh\u01b0 cu\u1ed9n d\u00e2y t\u1eeb t\u00ednh. T\u00f9y theo c\u00f4ng su\u1ea5t( kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng d\u00f2ng) c\u1ee7a n\u00f3 m\u00e0 ng\u01b0\u1eddi ta s\u1ebd l\u1ef1a ch\u1ecdn nh\u01b0 ti\u1ebft di\u1ec7n s\u1ed1 v\u00f2ng qu\u1ea5n, k\u00edch th\u01b0\u1edbc c\u1ee7a l\u00f5i th\u00e9p. C\u1ea5u t\u1ea1o c\u1ee7a b\u1ed9 kh\u00e1ng r\u1ea5t \u0111\u01a1n gi\u1ea3n ch\u00ednh v\u00ec v\u1eady khi ch\u1ecdn mua ta ch\u1ec9 c\u1ea7n mua \u0111\u00fang theo th\u00f4ng s\u1ed1 y\u00eau c\u1ea7u c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u1eabn c\u00f3 th\u1ec3 thay th\u1ebf cho nhau \u0111\u01b0\u1ee3c.<\/p>\n<p>Khi ch\u1ecdn mua cu\u1ed9n kh\u00e1ng b\u1ea1n c\u1ea7n ph\u1ea3i ph\u00e2n bi\u1ec7t c\u00f3 3 lo\u1ea1i trong th\u1ef1c t\u1ebf nh\u01b0 sau:<\/p>\n<p>Cu\u1ed9n kh\u00e1ng AC reactor g\u1eafn \u1edf \u0111\u1ea7u ngu\u1ed3n v\u00e0o input c\u1ee7a bi\u1ebfn t\u1ea7n.<\/p>\n<p>Cu\u1ed9n kh\u00e1ng DC reactor g\u1eafn n\u1ed1i ti\u1ebfp tr\u00ean DC bus c\u1ee7a bi\u1ebfn t\u1ea7n.<\/p>\n<p>CAC reactor c\u00f3 th\u1ec3 g\u1eafn tr\u01b0\u1edbc ngu\u1ed3n v\u00e0o ho\u1eb7c sau ngu\u1ed3n ra c\u1ee7a bi\u1ebfn t\u1ea7n c\u00f3 t\u00e1c d\u1ee5ng l\u00e0 gi\u1ea3m c\u00e1c s\u00f3ng h\u00e0i v\u00e0 c\u00e1c gai nh\u1ecdn gi\u00fap gi\u1ea3m c\u00e1c s\u1ed1c \u0111i\u1ec7n v\u00e0 \u1ed5n \u0111\u1ecbnh ngu\u1ed3n \u0111i\u1ec7n xoay chi\u1ec1u cho c\u1ea3 bi\u1ebfn t\u1ea7n v\u00e0 \u0111\u1ed9ng c\u01a1. DC reactor th\u00ec \u0111\u01b0\u1ee3c g\u1eafn n\u1ed1i ti\u1ebfp tr\u00ean DC bus c\u1ee7a bi\u1ebfn t\u1ea7n, n\u00f3 k\u1ebft h\u1ee3p v\u1edbi t\u1ee5 \u0111i\u1ec7n g\u1eafn song song tr\u00ean DC bus t\u1ea1o ra m\u1ea1ch l\u1ecdc s\u00f3ng h\u00e0i t\u1ea1o ra trong qu\u00e1 tr\u00ecnh n\u00e9n t\u1eeb \u0111i\u1ec7n AC sang DC, ngo\u00e0i ra vi\u1ec7c s\u1eed d\u1ee5ng DC reactor c\u0169ng \u0111\u1ea3m b\u1ea3o d\u1ea1ng s\u00f3ng DC sau cu\u1ed9n kh\u00e1ng s\u1ebd gi\u1eef \u1ed5n \u0111\u1ecbnh v\u00e0 tr\u00e1nh b\u1ecb s\u1ed1 \u0111i\u1ec7n.<\/p>\n<p>\u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 lo\u1ea1i bi\u1ebfn t\u1ea7n \u1edf c\u00f4ng su\u1ea5t nh\u1ecf th\u01b0\u1eddng s\u1ebd \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p s\u1eb5n b\u00ean trong bi\u1ebfn t\u1ea7n n\u00ean c\u00e1c b\u1ea1n kh\u00f4ng c\u1ea7n thi\u1ebft ph\u1ea3i mua th\u00eam b\u00ean ngo\u00e0i \u0111\u1ec3 g\u1eafn. \u0110\u1ed1i v\u1edbi bi\u1ebfn t\u1ea7n c\u00f4ng su\u1ea5t l\u1edbn th\u00ec c\u00e1c b\u1ea1n c\u1ea7n ph\u1ea3i ch\u1ecdn th\u00f4ng s\u1ed1 reactor cho \u0111\u00fang v\u00e0 tham kh\u1ea3o th\u00eam trong manual t\u00e0i li\u1ec7u c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u1ec1 s\u01a1 \u0111\u1ed3 \u0111\u1ea5u d\u00e2y \u0111\u1ec3 c\u00f3 th\u1ec3 g\u1eafn cho bi\u1ebfn t\u1ea7n.<\/p>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng cu\u1ed9n kh\u00e1ng bi\u1ebfn t\u1ea7n cho m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p d\u00e2y n\u1ed1i gi\u1eefa bi\u1ebfn t\u1ea7n v\u00e0 m\u00f4 t\u01a1 qu\u00e1 d\u00e0i gi\u00fap cho bi\u1ebfn t\u1ea7n kh\u00f4ng b\u1ecb b\u00e1o l\u1ed7i cu\u1ed9n kh\u00e1ng AC reactor g\u1eafn \u1edf ng\u00f5 ra ouput c\u1ee7a bi\u1ebfn t\u1ea7n.<\/p>\n<p>\u0110\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c bi\u1ec7n ph\u00e1p ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ed1i v\u1edbi t\u1eebng lo\u1ea1i nguy\u00ean nh\u00e2n kh\u00e1c nhau l\u1ea1i l\u00e0 m\u1ed9t c\u00e2u h\u1ecfi kh\u00f3 \u0111\u1ed1i v\u1edbi c\u00e1c \u0111\u01a1n v\u1ecb cung c\u1ea5p gi\u1ea3i ph\u00e1p. H\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng t\u01b0 v\u1ea5n ch\u00ednh x\u00e1c nh\u1ea5t ngay h\u00f4m nay t\u1ea1i:<\/p>\n<p><a href=\"https:\/\/mese.vn\/vi\/lien-he\">https:\/\/mese.vn\/vi\/lien-he<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>R\u1ea5t nhi\u1ec1u c\u00f4ng tr\u00ecnh t\u00f2a nh\u00e0, nh\u00e0 m\u00e1y c\u00f4ng nghi\u1ec7p, d\u1ef1 \u00e1n c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng\u2026khi s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1, \u0111\u1eb7c bi\u1ec7t khi t\u1ed5ng c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n tr\u00ean t\u1ed5ng c\u00f4ng su\u1ea5t c\u1ee7a c\u00f4ng tr\u00ecnh c\u00f3 t\u1ef7 l\u1ec7 cao. C\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u01b0 m\u00e1y t\u00ednh, &hellip; <a href=\"https:\/\/tofu.isoinaction.com\/mesevn\/vi\/khac-phuc-su-co-song-hai-va-nhieu-dien-tu-do-su-dung-bien-tan.html\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Kh\u1eafc Ph\u1ee5c: s\u1ef1 c\u1ed1 s\u00f3ng h\u00e0i v\u00e0 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb do s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":120142,"featured_media":4672,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,26,25,28,1350,106],"tags":[1648,58,1646,1650,1570],"class_list":["post-4645","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-giai-phap-san-pham-cho-benh-vien","category-giai-phap-dien-dau-khi","category-giai-phap-nganh-mo","category-giai-phap-nganh-nuoc","category-cho-nha-may","category-tin-tuc-vi","tag-ahf","tag-bien-tan","tag-loc-song-hai","tag-loc-song-hai-chu-dong","tag-nidec"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Kh\u1eafc Ph\u1ee5c: s\u1ef1 c\u1ed1 s\u00f3ng h\u00e0i v\u00e0 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb do s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n - MES Engineering<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tofu.isoinaction.com\/mesevn\/vi\/khac-phuc-su-co-song-hai-va-nhieu-dien-tu-do-su-dung-bien-tan.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kh\u1eafc Ph\u1ee5c: s\u1ef1 c\u1ed1 s\u00f3ng h\u00e0i v\u00e0 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb do s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n\" \/>\n<meta property=\"og:description\" content=\"R\u1ea5t nhi\u1ec1u c\u00f4ng tr\u00ecnh t\u00f2a nh\u00e0, nh\u00e0 m\u00e1y c\u00f4ng nghi\u1ec7p, d\u1ef1 \u00e1n c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng\u2026khi s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1, \u0111\u1eb7c bi\u1ec7t khi t\u1ed5ng c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n tr\u00ean t\u1ed5ng c\u00f4ng su\u1ea5t c\u1ee7a c\u00f4ng tr\u00ecnh c\u00f3 t\u1ef7 l\u1ec7 cao. 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