{"id":1458,"date":"2026-09-25T01:51:00","date_gmt":"2026-09-25T01:51:00","guid":{"rendered":"https:\/\/lanshanelectric.com\/?p=1458"},"modified":"2026-09-15T02:47:55","modified_gmt":"2026-09-15T02:47:55","slug":"bang-dieu-khien-ngan-hang-tu-dien-co-dinh-vs-apfc-tu-dong","status":"publish","type":"post","link":"https:\/\/lanshanelectric.com\/vi\/capacitor-bank-panel-fixed-vs-automatic-apfc\/","title":{"rendered":"B\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n: H\u1ec7 th\u1ed1ng APFC c\u1ed1 \u0111\u1ecbnh v\u00e0 t\u1ef1 \u0111\u1ed9ng"},"content":{"rendered":"

M\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n n\u00ean ph\u00f9 h\u1ee3p v\u1edbi c\u00e1ch thay \u0111\u1ed5i c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n th\u1ef1c t\u1ebf. m\u1ed9t ng\u00e2n h\u00e0ng c\u1ed1 \u0111\u1ecbnh c\u00f3 th\u1ec3 c\u00f3 hi\u1ec7u qu\u1ea3 khi t\u1ea3i c\u1ea3m \u1ee9ng \u1ed5n \u0111\u1ecbnh, trong khi m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n APFC t\u1ef1 \u0111\u1ed9ng c\u00f3 th\u1ec3 th\u00eam ho\u1eb7c lo\u1ea1i b\u1ecf c\u00e1c giai \u0111o\u1ea1n t\u1ee5 \u0111i\u1ec7n khi nhu c\u1ea7u thay \u0111\u1ed5i. l\u1ef1a ch\u1ecdn gi\u1eefa ch\u00fang do \u0111\u00f3 l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 ki\u1ec3m so\u00e1t nhi\u1ec1u nh\u01b0 m\u1ed9t t\u00ednh to\u00e1n kvar.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 m\u00e1y, t\u00f2a nh\u00e0 th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00e1c thi\u1ebft b\u1ecb ph\u1ee5 tr\u1ee3 ti\u1ec7n \u00edch, ph\u01b0\u01a1ng ph\u00e1p b\u00f9 sai c\u00f3 th\u1ec3 t\u1ea1o ra h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t h\u00e0ng \u0111\u1ea7u, chuy\u1ec3n m\u1ea1ch kh\u00f4ng c\u1ea7n thi\u1ebft, \u1ee9ng su\u1ea5t t\u1ee5 \u0111i\u1ec7n ho\u1eb7c t\u01b0\u01a1ng t\u00e1c v\u1edbi t\u1ea3i s\u1ea3n xu\u1ea5t s\u00f3ng h\u00e0i. h\u01b0\u1edbng d\u1eabn n\u00e0y so s\u00e1nh c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u1ed1 \u0111\u1ecbnh v\u00e0 t\u1ef1 \u0111\u1ed9ng th\u00f4ng qua c\u00e1c \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh m\u00e0 c\u00e1c k\u1ef9 s\u01b0 d\u1ef1 \u00e1n v\u00e0 ng\u01b0\u1eddi mua c\u1ea7n x\u00e1c minh tr\u01b0\u1edbc khi ch\u1ec9 \u0111\u1ecbnh thi\u1ebft b.<\/p>\n\n\n\n

B\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n th\u1ef1c s\u1ef1 l\u00e0m g\u00ec?<\/h2>\n\n\n\n
\"L\u1eafp<\/figure>\n\n\n\n

M\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng ph\u1ea3n \u1ee9ng \u0111i\u1ec7n dung c\u1ee5c b\u1ed9 \u0111\u1ec3 m\u1ed9t ph\u1ea7n c\u1ee7a nhu c\u1ea7u ph\u1ea3n \u1ee9ng c\u1ea3m \u1ee9ng kh\u00f4ng ph\u1ea3i \u0111i qua c\u00e1p th\u01b0\u1ee3ng ngu\u1ed3n v\u00e0 m\u00e1y bi\u1ebfn \u00e1p.B\u1ed9 N\u0103ng l\u01b0\u1ee3ng Hoa K\u1ef3 gi\u1ea3i th\u00edch m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00f4ng su\u1ea5t th\u1ef1c, c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng v\u00e0 c\u00f4ng su\u1ea5t bi\u1ec3u ki\u1ebfn trong n\u00f3 h\u01b0\u1edbng d\u1eabn \u0111i\u1ec7n \u00e1p v\u00e0 c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng<\/a>. D\u00f2ng \u0111i\u1ec7n ph\u1ea3n kh\u00e1ng th\u1ea5p h\u01a1n c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m d\u00f2ng \u0111i\u1ec7n do c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i mang theo khi hi\u1ec7u ch\u1ec9nh \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng th\u00edch h\u1ee3p.<\/p>\n\n\n\n

\u0110\u1ec3 hi\u1ec7u ch\u1ec9nh \u0111i\u1ec7n \u00e1p th\u1ea5p, IEC 61921:2017<\/a> \u00e1p d\u1ee5ng cho c\u00e1c ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n AC shunt \u0111i\u1ec7n \u00e1p th\u1ea5p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 hi\u1ec7u ch\u1ec9nh h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t, bao g\u1ed3m c\u00e1c ng\u00e2n h\u00e0ng \u0111\u01b0\u1ee3c trang b\u1ecb thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft v\u00e0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n k\u1ebft n\u1ed1i ho\u1eb7c ng\u1eaft k\u1ebft n\u1ed1i c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a ng\u00e2n h\u00e0ng. c\u00e1c \u0111\u01a1n v\u1ecb t\u1ee5 \u0111i\u1ec7n t\u1ef1 ph\u1ee5c h\u1ed3i c\u00e1 nh\u00e2n v\u00e0 ng\u00e2n h\u00e0ng \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft b\u1edfi IEC 60831-1:2014<\/a> trong ph\u1ea1m vi c\u1ee7a n\u00f3.<\/p>\n\n\n\n

Nh\u1eefng ti\u00eau chu\u1ea9n \u0111\u00f3 kh\u00f4ng cho m\u1ed9t d\u1ef1 \u00e1n bi\u1ebft n\u00ean ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u ch\u1ec9nh n\u00e0o.Quy\u1ebft \u0111\u1ecbnh \u0111\u00f3 b\u1eaft \u0111\u1ea7u v\u1edbi c\u1ea5u h\u00ecnh t\u1ea3i, h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t m\u1ee5c ti\u00eau y\u00eau c\u1ea7u, m\u00f4i tr\u01b0\u1eddng h\u00e0i h\u00f2a v\u00e0 tri\u1ebft l\u00fd \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n

S\u01a1 l\u01b0\u1ee3c v\u1ec1 kho\u1ea3n b\u1ed3i th\u01b0\u1eddng c\u1ed1 \u0111\u1ecbnh v\u00e0 t\u1ef1 \u0111\u1ed9ng<\/h2>\n\n\n\n
\u0110i\u1ec3m quy\u1ebft \u0111\u1ecbnh<\/th>Ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n c\u1ed1 \u0111\u1ecbnh<\/th>B\u1ea3ng \u0111i\u1ec1u khi\u1ec3n APFC t\u1ef1 \u0111\u1ed9ng<\/th>Nh\u1eefng g\u00ec ng\u01b0\u1eddi mua n\u00ean x\u00e1c minh<\/th><\/tr><\/thead>
\u0110\u1ea7u ra ph\u1ea3n \u1ee9ng<\/td>H\u1eb1ng kvar trong khi k\u1ebft n\u1ed1i<\/td>Thay \u0111\u1ed5i theo giai \u0111o\u1ea1n chuy\u1ec3n \u0111\u1ed5i<\/td>Bi\u1ebfn th\u1ec3 t\u1ea3i v\u00e0 \u0111\u1ed9 ph\u00e2n gi\u1ea3i b\u01b0\u1edbc y\u00eau c\u1ea7u<\/td><\/tr>
Ph\u00f9 h\u1ee3p nh\u1ea5t<\/td>T\u1ea3i c\u1ea3m \u1ee9ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c chuy\u1ec3n \u0111\u1ed5i ri\u00eang bi\u1ec7t<\/td>Xe bu\u00fdt v\u1edbi s\u1ef1 k\u1ebft h\u1ee3p thay \u0111\u1ed5i c\u1ee7a t\u1ea3i<\/td>H\u1ed3 s\u01a1 kvar \u0111o \u0111\u01b0\u1ee3c trong c\u00e1c kho\u1ea3ng th\u1eddi gian \u0111\u1ea1i di\u1ec7n<\/td><\/tr>
\u0110i\u1ec1u khi\u1ec3n<\/td>S\u1eafp x\u1ebfp chuy\u1ec3n \u0111\u1ed5i \u0111\u01a1n gi\u1ea3n<\/td>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n c\u1ed9ng v\u1edbi c\u00f4ng t\u1eafc t\u01a1 ho\u1eb7c c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t kh\u00e1c<\/td>PF m\u1ee5c ti\u00eau, logic chuy\u1ec3n \u0111\u1ed5i v\u00e0 h\u00e0nh vi ph\u1ea3n h\u1ed3i<\/td><\/tr>
R\u1ee7i ro s\u1eeda ch\u1eefa qu\u00e1 m\u1ee9c<\/td>Cao h\u01a1n khi t\u1ea3i tr\u1ecdng b\u00f9 r\u01a1i \u0111i<\/td>Gi\u1ea3m khi c\u00e1c giai \u0111o\u1ea1n \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c<\/td>T\u1ea3i tr\u1ecdng t\u1ed1i thi\u1ec3u v\u00e0 gi\u1edbi h\u1ea1n PF h\u00e0ng \u0111\u1ea7u<\/td><\/tr>
Nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i<\/td>Th\u1ea5p n\u1ebfu m\u00f4 h\u00ecnh ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh<\/td>C\u00f3 kh\u1ea3 n\u0103ng th\u01b0\u1eddng xuy\u00ean<\/td>Ho\u1ea1t \u0111\u1ed9ng d\u1ef1 ki\u1ebfn, k\u00edch th\u01b0\u1edbc giai \u0111o\u1ea1n v\u00e0 nhi\u1ec7m v\u1ee5 c\u1ee7a thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch<\/td><\/tr>
\u0110\u00e1nh gi\u00e1 h\u00e0i h\u00f2a<\/td>Y\u00eau c\u1ea7u khi t\u1ea3i phi tuy\u1ebfn l\u00e0 \u0111\u00e1ng k\u1ec3<\/td>C\u0169ng c\u1ea7n thi\u1ebft; \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng kh\u00f4ng lo\u1ea1i b\u1ecf s\u00f3ng h\u00e0i<\/td>\u0110\u00e1nh gi\u00e1 ph\u1ed5 THD, tr\u1edf kh\u00e1ng h\u1ec7 th\u1ed1ng v\u00e0 c\u1ed9ng h\u01b0\u1edfng<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

B\u1ea3ng cho th\u1ea5y l\u00fd do t\u1ea1i sao m\u1ed9t b\u1ea3ng ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ecdn t\u1eeb kvar m\u1ed9t m\u00ecnh. c\u00f9ng m\u1ed9t t\u1ed5ng c\u00f4ng su\u1ea5t t\u1ee5 \u0111i\u1ec7n c\u00f3 th\u1ec3 h\u00e0nh x\u1eed r\u1ea5t kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o c\u00e1ch n\u00f3 \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c b\u01b0\u1edbc v\u00e0 khi c\u00e1c b\u01b0\u1edbc \u0111\u00f3 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i.<\/p>\n\n\n\n

Khi m\u1ed9t Ng\u00e2n h\u00e0ng T\u1ee5 c\u1ed1 \u0111\u1ecbnh c\u00f3 \u00fd ngh\u0129a<\/h2>\n\n\n\n

M\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n c\u1ed1 \u0111\u1ecbnh l\u00e0 gi\u00e1 tr\u1ecb xem x\u00e9t n\u01a1i nhu c\u1ea7u ph\u1ea3n \u1ee9ng c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 g\u1eafn ch\u1eb7t v\u1edbi t\u1ea3i c\u1ea3m \u1ee9ng \u1ed5n \u0111\u1ecbnh. v\u00ed d\u1ee5 r\u00f5 r\u00e0ng nh\u1ea5t l\u00e0 nhi\u1ec7m v\u1ee5 \u0111\u1ed9ng c\u01a1 ho\u1eb7c m\u00e1y bi\u1ebfn \u00e1p m\u00e0 v\u1eabn kh\u00f4ng thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 b\u1ea5t c\u1ee9 khi n\u00e0o t\u1ee5 \u0111i\u1ec7n \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n.<\/p>\n\n\n\n

C\u00e2u h\u1ecfi k\u1ef9 thu\u1eadt l\u00e0 li\u1ec7u b\u1ea3ng ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n c\u00f3 th\u1ec3 v\u1eabn ph\u00f9 h\u1ee3p v\u1edbi t\u1ea3i \u0111\u00f3 trong su\u1ed1t chu k\u1ef3 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3 hay kh\u00f4ng.N\u1ebfu m\u00e1y b\u1ecb d\u1eebng trong khi t\u1ee5 \u0111i\u1ec7n v\u1eabn \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi bus, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 di chuy\u1ec3n v\u1ec1 ph\u00eda h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t h\u00e0ng \u0111\u1ea7u. kh\u1ea3 n\u0103ng \u0111\u00f3 n\u00ean \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft trong b\u1ed1 tr\u00ed chuy\u1ec3n m\u1ea1ch v\u00e0 logic ho\u1ea1t \u0111\u1ed9ng thay v\u00ec \u0111\u1ec3 l\u1ea1i cho m\u1ed9t nh\u00e0 \u0111i\u1ec1u h\u00e0nh \u0111\u1ec3 th\u00f4ng b\u00e1o sau.<\/p>\n\n\n\n

B\u1ed3i th\u01b0\u1eddng c\u1ed1 \u0111\u1ecbnh c\u0169ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a \u0111i\u1ec1u khi\u1ec3n.Kh\u00f4ng c\u00f3 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n nhi\u1ec1u b\u01b0\u1edbc li\u00ean t\u1ee5c th\u00eam v\u00e0 lo\u1ea1i b\u1ecf kvar.Tuy nhi\u00ean, s\u1ef1 \u0111\u01a1n gi\u1ea3n ch\u1ec9 gi\u00fap khi nhi\u1ec7m v\u1ee5 \u0111i\u1ec7n th\u1ef1c s\u1ef1 \u0111\u01a1n gi\u1ea3n.M\u1ed9t ng\u00e2n h\u00e0ng k\u1ebft n\u1ed1i v\u1edbi m\u1ed9t xe bu\u00fdt chung dao \u0111\u1ed9ng c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh s\u1ed1 ti\u1ec1n b\u1ed3i th\u01b0\u1eddng sai cho ph\u1ea7n l\u1edbn th\u1eddi gian trong ng\u00e0y.<\/p>\n\n\n\n

Kh\u00f4ng s\u1eed d\u1ee5ng \u201cFixed\u201d nh\u01b0 m\u1ed9t T\u1eeb \u0111\u1ed3ng ngh\u0129a v\u1edbi \u201cAlways Energized\u201d (Lu\u00f4n lu\u00f4n \u0111\u01b0\u1ee3c ti\u1ebfp th\u00eam sinh l\u1ef1c)\u201d<\/h3>\n\n\n\n

M\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n c\u1ed1 \u0111\u1ecbnh v\u1eabn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i v\u1edbi t\u1ea3i m\u00e0 n\u00f3 d\u1ef1 \u0111\u1ecbnh b\u00f9. trong c\u00e1c t\u00e0i li\u1ec7u d\u1ef1 \u00e1n, x\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n kh\u00f3a li\u00ean \u0111\u1ed9ng ho\u1eb7c chuy\u1ec3n \u0111\u1ed5i m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng. s\u1ef1 kh\u00e1c bi\u1ec7t quan tr\u1ecdng l\u00e0 \u0111\u1ea7u ra ph\u1ea3n \u1ee9ng c\u1ee7a n\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf t\u1ef1 \u0111\u1ed9ng qua nhi\u1ec1u b\u01b0\u1edbc \u0111\u1ec3 \u0111\u00e1p \u1ee9ng v\u1edbi h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t bus thay \u0111\u1ed5i.<\/p>\n\n\n\n

Khi b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n APFC t\u1ef1 \u0111\u1ed9ng ph\u00f9 h\u1ee3p h\u01a1n<\/h2>\n\n\n\n

M\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho xe bu\u00fdt n\u01a1i b\u1ed3i th\u01b0\u1eddng ph\u1ea3n \u1ee9ng c\u1ea7n thi\u1ebft thay \u0111\u1ed5i khi t\u1ea3i b\u1eaft \u0111\u1ea7u v\u00e0 d\u1eebng. m\u1ed9t b\u1ed9 \u0111i\u1ec1u khi\u1ec3n APFC gi\u00e1m s\u00e1t m\u1ed9t l\u01b0\u1ee3ng \u0111i\u1ec7n, \u0111\u00e1nh gi\u00e1 y\u00eau c\u1ea7u n\u0103ng l\u01b0\u1ee3ng ph\u1ea3n \u1ee9ng v\u00e0 ra l\u1ec7nh cho c\u00e1c giai \u0111o\u1ea1n \u0111\u1ec3 k\u1ebft n\u1ed1i ho\u1eb7c ng\u1eaft k\u1ebft n\u1ed1i theo logic \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh.<\/p>\n\n\n\n

C\u00e1ch ti\u1ebfp c\u1eadn b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n t\u1ef1 \u0111\u1ed9ng n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t v\u1edbi d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t thay \u0111\u1ed5i, c\u00e1c t\u00f2a nh\u00e0 th\u01b0\u01a1ng m\u1ea1i v\u1edbi t\u1ea3i HVAC \u0111i xe \u0111\u1ea1p v\u00e0 c\u00e1c c\u00e0i \u0111\u1eb7t kh\u00e1c m\u00e0 m\u1ed9t gi\u00e1 tr\u1ecb kvar c\u1ed1 \u0111\u1ecbnh th\u01b0\u1eddng xuy\u00ean s\u1ebd qu\u00e1 nhi\u1ec1u ho\u1eb7c qu\u00e1 \u00edt. m\u1ee5c ti\u00eau kh\u00f4ng ph\u1ea3i l\u00e0 theo \u0111u\u1ed5i m\u1ecdi bi\u1ebfn \u0111\u1ed9ng nh\u1ecf; \u0111\u00f3 l\u00e0 \u0111\u1ec3 gi\u1eef cho h\u1ec7 th\u1ed1ng trong ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng \u0111\u00e3 th\u1ecfa thu\u1eadn m\u00e0 kh\u00f4ng c\u1ea7n chuy\u1ec3n \u0111\u1ed5i qu\u00e1 m\u1ee9c.<\/p>\n\n\n\n

c\u1ee7a Lanshan T\u1ee7 b\u00f9 c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng \u0111i\u1ec7n \u00e1p th\u1ea5p t\u1ef1 \u0111\u1ed9ng GGJ<\/a> l\u00e0 h\u01b0\u1edbng s\u1ea3n ph\u1ea9m c\u00f3 li\u00ean quan cho m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1u khi\u1ec3n. k\u00edch th\u01b0\u1edbc b\u01b0\u1edbc c\u1ee5 th\u1ec3 c\u1ee7a d\u1ef1 \u00e1n, thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch, ch\u1ee9c n\u0103ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 x\u1ebfp h\u1ea1ng \u00e1p d\u1ee5ng v\u1eabn c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn t\u1eeb \u0111\u1ec1 xu\u1ea5t \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t ch\u1ee9 kh\u00f4ng ph\u1ea3i suy ra t\u1eeb t\u00ean s\u1ea3n ph\u1ea9m-h\u1ecd s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

K\u00edch th\u01b0\u1edbc Ng\u00e2n h\u00e0ng t\u1eeb S\u1ee9c m\u1ea1nh Ph\u1ea3n \u1ee9ng, Kh\u00f4ng ph\u1ea3i t\u1eeb \u0110o\u00e1n<\/h2>\n\n\n\n
\"T\u1ee7<\/figure>\n\n\n\n

\u0110\u1ed1i v\u1edbi t\u1ea3i c\u00f3 c\u00f4ng su\u1ea5t th\u1ef1c P, h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t ban \u0111\u1ea7u cos\u03c61 v\u00e0 h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t m\u1ee5c ti\u00eau cos\u03c62, m\u1ed1i quan h\u1ec7 quy ho\u1ea1ch chung l\u00e0:<\/p>\n\n\n\n

T\u1ee5 \u0111i\u1ec7n y\u00eau c\u1ea7u kvar \u2248 P \u00d7 (tan\u03c61 \u2212 tan\u03c62)<\/strong><\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 m\u1ed9t t\u00ednh to\u00e1n b\u1eaft \u0111\u1ea7u, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n cu\u1ed1i c\u00f9ng.\u0110\u1ed1i v\u1edbi m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n, t\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00f4ng th\u1ee9c ph\u1ea3i t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng th\u1ef1c t\u1ebf, v\u00e0 h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t m\u1ee5c ti\u00eau n\u00ean tu\u00e2n theo c\u00e1c y\u00eau c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n ho\u1eb7c ti\u1ec7n \u00edch ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t gi\u00e1 tr\u1ecb t\u00f9y \u00fd g\u1ea7n v\u1edbi s\u1ef1 th\u1ed1ng nh\u1ea5t.<\/p>\n\n\n\n

T\u00ednh to\u00e1n minh h\u1ecda<\/h3>\n\n\n\n

Gi\u1ea3 s\u1eed m\u1ed9t c\u01a1 s\u1edf r\u00fat ra 800 kW t\u1ea1i 0,78 h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t v\u00e0 m\u1ee5c ti\u00eau k\u1ef9 thu\u1eadt l\u00e0 0,95. c\u00e1c ti\u1ebfp tuy\u1ebfn g\u00f3c pha l\u00e0 kho\u1ea3ng 0,802 v\u00e0 0,329, do \u0111\u00f3, b\u1ed3i th\u01b0\u1eddng t\u00ednh to\u00e1n l\u00e0 kho\u1ea3ng 378 kvar.<\/p>\n\n\n\n

K\u1ebft qu\u1ea3 \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 ng\u01b0\u1eddi mua n\u00ean t\u1ef1 \u0111\u1ed9ng \u0111\u1eb7t h\u00e0ng m\u1ed9t ng\u00e2n h\u00e0ng c\u1ed1 \u0111\u1ecbnh 400 kvar.N\u1ebfu c\u01a1 s\u1edf th\u01b0\u1eddng xuy\u00ean gi\u1ea3m xu\u1ed1ng m\u1ed9t n\u1eeda t\u1ea3i, y\u00eau c\u1ea7u ph\u1ea3n \u1ee9ng s\u1ebd thay \u0111\u1ed5i.B\u01b0\u1edbc ti\u1ebfp theo l\u00e0 so s\u00e1nh y\u00eau c\u1ea7u kvar qua c\u00e1c giai \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng \u0111\u1ea1i di\u1ec7n v\u00e0 ch\u1ecdn chi\u1ebfn l\u01b0\u1ee3c ki\u1ec3m so\u00e1t v\u00e0 c\u1ea5u tr\u00fac b\u01b0\u1edbc c\u00f3 th\u1ec3 theo nh\u1eefng thay \u0111\u1ed5i \u0111\u00f3.<\/p>\n\n\n\n

K\u00edch th\u01b0\u1edbc b\u01b0\u1edbc quan tr\u1ecdng b\u1eb1ng T\u1ed5ng kvar<\/h2>\n\n\n\n

\u0110\u1ed1i v\u1edbi b\u1ea3ng ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n t\u1ef1 \u0111\u1ed9ng, t\u1ed5ng c\u00f4ng su\u1ea5t ch\u1ec9 tr\u1ea3 l\u1eddi m\u1ed9t c\u00e2u h\u1ecfi.K\u00edch th\u01b0\u1edbc b\u01b0\u1edbc x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 ch\u1eb7t ch\u1ebd c\u1ee7a h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 theo nhu c\u1ea7u ph\u1ea3n \u1ee9ng thay \u0111\u1ed5i.C\u00e1c b\u01b0\u1edbc r\u1ea5t l\u1edbn c\u00f3 th\u1ec3 khi\u1ebfn h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t \u0111\u00e3 hi\u1ec7u ch\u1ec9nh di chuy\u1ec3n qua l\u1ea1i tr\u00ean m\u1ee5c ti\u00eau; c\u00e1c b\u01b0\u1edbc r\u1ea5t nh\u1ecf l\u00e0m t\u0103ng s\u1ed1 l\u01b0\u1ee3ng ho\u1ea1t \u0111\u1ed9ng chuy\u1ec3n m\u1ea1ch v\u00e0 c\u00f3 th\u1ec3 l\u00e0m t\u0103ng th\u00eam s\u1ef1 ph\u1ee9c t\u1ea1p kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n

Xem x\u00e9t m\u1ed9t ng\u00e2n h\u00e0ng 300 kvar minh h\u1ecda. s\u1eafp x\u1ebfp 6 \u00d7 50 kvar v\u00e0 s\u1eafp x\u1ebfp 25 + 25 + 50 + 50 + 50 + 100 kvar c\u00f3 c\u00f9ng t\u1ed5ng kvar nh\u01b0ng \u0111\u1ed9 ph\u00e2n gi\u1ea3i v\u00e0 tr\u00ecnh t\u1ef1 ho\u1ea1t \u0111\u1ed9ng kh\u00e1c nhau. kh\u00f4ng ph\u1ea3i l\u00e0 ph\u1ed5 qu\u00e1t v\u01b0\u1ee3t tr\u1ed9i. c\u1ea5u tr\u00fac ch\u00ednh x\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o h\u1ed3 s\u01a1 t\u1ea3i \u0111o \u0111\u01b0\u1ee3c, thu\u1eadt to\u00e1n b\u1ed9 \u0111i\u1ec1u khi\u1ec3n v\u00e0 gi\u1edbi h\u1ea1n chuy\u1ec3n \u0111\u1ed5i-nhi\u1ec7m v.<\/p>\n\n\n\n

Y\u00eau c\u1ea7u nh\u00e0 cung c\u1ea5p hi\u1ec3n th\u1ecb tr\u00ecnh t\u1ef1 giai \u0111o\u1ea1n \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t v\u00e0 k\u1ebft h\u1ee3p kvar c\u00f3 s\u1eb5n k\u1ebft qu\u1ea3. c\u0169ng x\u00e1c \u0111\u1ecbnh c\u00e1ch b\u1ed9 \u0111i\u1ec1u khi\u1ec3n tr\u00e1nh k\u1ebft n\u1ed1i l\u1ea1i nhanh ch\u00f3ng sau khi m\u1ed9t giai \u0111o\u1ea1n b\u1ecb ng\u1eaft k\u1ebft n\u1ed1i, b\u1edfi v\u00ec t\u1ee5 \u0111i\u1ec7n y\u00eau c\u1ea7u c\u00e1c \u0111i\u1ec1u ki\u1ec7n ph\u00f3ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh tr\u01b0\u1edbc khi t\u00e1i c\u1ea5p \u0111i\u1ec7n.<\/p>\n\n\n\n

Tr\u00e1nh h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t h\u00e0ng \u0111\u1ea7u v\u00e0 hi\u1ec7u ch\u1ec9nh qu\u00e1 m\u1ee9c t\u1ea3i nh\u1eb9<\/h2>\n\n\n\n

M\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n cung c\u1ea5p nhi\u1ec1u kvar \u0111i\u1ec7n dung h\u01a1n nhu c\u1ea7u c\u1ee7a h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 th\u00fac \u0111\u1ea9y h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t d\u1eabn \u0111\u1ea7u. r\u1ee7i ro n\u00e0y \u0111\u1eb7c bi\u1ec7t c\u00f3 li\u00ean quan v\u00e0o ban \u0111\u00eam, trong ho\u1ea1t \u0111\u1ed9ng cu\u1ed1i tu\u1ea7n ho\u1eb7c khi ch\u1ec9 c\u00f3 m\u1ed9t v\u00e0i d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t v\u1eabn c\u00f2n tr\u00e0n \u0111\u1ea7y n\u0103ng l\u01b0\u1ee3ng.<\/p>\n\n\n\n

Kh\u00f4ng ch\u1ec9 xem x\u00e9t t\u1ea3i tr\u1ecdng \u0111\u1ec9nh c\u1ee7a nh\u00e0 m\u00e1y. bao g\u1ed3m \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady t\u1ed1i thi\u1ec3u c\u1ee7a n\u00f3. n\u1ebfu m\u1ed9t ng\u00e2n h\u00e0ng c\u1ed1 \u0111\u1ecbnh v\u1eabn \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i trong th\u1eddi gian t\u1ed1i thi\u1ec3u \u0111\u00f3, h\u00e3y t\u00ednh to\u00e1n s\u1ed1 d\u01b0 ph\u1ea3n \u1ee9ng k\u1ebft qu\u1ea3.\u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ef1 s\u1eafp x\u1ebfp APFC, x\u00e1c nh\u1eadn r\u1eb1ng b\u01b0\u1edbc k\u1ebft n\u1ed1i nh\u1ecf nh\u1ea5t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u1ee1 b\u1ecf v\u00e0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n c\u00f3 ph\u1ea3n \u1ee9ng th\u00edch h\u1ee3p v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n h\u00e0ng \u0111\u1ea7u.<\/p>\n\n\n\n

Nhu c\u1ea7u ph\u1ea3n \u1ee9ng t\u1eeb h\u00f3a m\u00e1y bi\u1ebfn \u00e1p v\u00e0 c\u00e1c t\u1ea3i n\u1ec1n kh\u00e1c c\u00f3 th\u1ec3 v\u1eabn c\u00f2n khi thi\u1ebft b\u1ecb s\u1ea3n xu\u1ea5t t\u1eaft, nh\u01b0ng ch\u00fang c\u1ea7n \u0111\u01b0\u1ee3c \u0111o ho\u1eb7c t\u00ednh to\u00e1n thay v\u00ec gi\u1ea3 \u0111\u1ecbnh \u0111\u1ec3 bi\u1ec7n minh cho m\u1ed9t ng\u00e2n h\u00e0ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u0129nh vi\u1ec5n.<\/p>\n\n\n\n

Harmonics C\u00f3 Th\u1ec3 Thay \u0110\u1ed5i Thi\u1ebft K\u1ebf B\u1ed3i Th\u01b0\u1eddng \u0110\u00fang<\/h2>\n\n\n\n
\"Ph\u00f2ng<\/figure>\n\n\n\n

M\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n ti\u00eau chu\u1ea9n cung c\u1ea5p b\u00f9 ph\u1ea3n \u1ee9ng; n\u00f3 kh\u00f4ng t\u1ef1 \u0111\u1ed9ng s\u1eeda m\u00e9o d\u1ea1ng s\u00f3ng \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi t\u1ea3i phi tuy\u1ebfn. \u1ed5 \u0111\u0129a, b\u1ed9 ch\u1ec9nh l\u01b0u v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t kh\u00e1c c\u00f3 th\u1ec3 ti\u00eam d\u00f2ng \u0111i\u1ec7n h\u00e0i c\u1ea7n \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n ri\u00eang bi\u1ec7t.<\/p>\n\n\n\n

Xu\u1ea5t b\u1ea3n Nghi\u00ean c\u1ee9u c\u1ee7a IEEE v\u1ec1 \u1ee9ng d\u1ee5ng t\u1ee5 \u0111i\u1ec7n<\/a> m\u00f4 t\u1ea3 c\u00e1ch t\u1ee5 \u0111i\u1ec7n h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi \u0111\u1ed9 t\u1ef1 c\u1ea3m c\u1ee7a h\u1ec7 th\u1ed1ng v\u00e0 t\u1ea1o ra s\u1ef1 c\u1ed9ng h\u01b0\u1edfng g\u1ea7n t\u1ea7n s\u1ed1 h\u00e0i. t\u01b0\u01a1ng t\u00e1c \u0111\u00f3 c\u00f3 th\u1ec3 khu\u1ebfch \u0111\u1ea1i d\u00f2ng \u0111i\u1ec7n ho\u1eb7c \u0111i\u1ec7n \u00e1p h\u00e0i v\u00e0 g\u00f3p ph\u1ea7n l\u00e0m qu\u00e1 nhi\u1ec7t, ho\u1ea1t \u0111\u1ed9ng phi\u1ec1n to\u00e1i ho\u1eb7c c\u0103ng th\u1eb3ng t\u1ee5 \u0111i\u1ec7n khi h\u1ec7 th\u1ed1ng kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 \u0111\u00fang.<\/p>\n\n\n\n

Do \u0111\u00f3, cung c\u1ea5p ph\u1ed5 h\u00e0i h\u00f2a ho\u1eb7c c\u00e1c ph\u00e9p \u0111o THD \u0111\u1ea1i di\u1ec7n trong \u0111\u00f3 t\u1ea3i phi tuy\u1ebfn l\u00e0 \u0111\u00e1ng k\u1ec3. h\u1ecfi k\u1ef9 s\u01b0 xem ng\u00e2n h\u00e0ng th\u00f4ng th\u01b0\u1eddng c\u00f3 ph\u00f9 h\u1ee3p hay kh\u00f4ng, li\u1ec7u c\u00f3 c\u1ea7n thi\u1ebft ph\u1ea3i th\u00e1o l\u00f2 ph\u1ea3n \u1ee9ng hay kh\u00f4ng ho\u1eb7c li\u1ec7u c\u00f3 c\u1ea7n m\u1ed9t gi\u1ea3i ph\u00e1p gi\u1ea3m thi\u1ec3u h\u00e0i h\u00f2a kh\u00e1c hay kh\u00f4ng.<\/p>\n\n\n\n

Kh\u00f4ng nh\u1ea7m l\u1eabn b\u00f9 ph\u1ea3n \u1ee9ng v\u1edbi l\u1ecdc h\u00e0i h\u00f2a<\/h3>\n\n\n\n

M\u1ed9t s\u1ef1 s\u1eafp x\u1ebfp detuned ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh th\u00eam c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m l\u00f2 ph\u1ea3n \u1ee9ng thay \u0111\u1ed5i h\u00e0nh vi \u0111i\u1ec7n c\u1ee7a b\u1ea3ng ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n. n\u00f3 n\u00ean \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh t\u1eeb m\u1ed9t nghi\u00ean c\u1ee9u h\u00e0i h\u00f2a, kh\u00f4ng \u0111\u01b0\u1ee3c th\u00eam v\u00e0o v\u00ec t\u1eeb \u2018\u1ed5 \u0111\u0129a\u2019 xu\u1ea5t hi\u1ec7n tr\u00ean l\u1ecbch tr\u00ecnh t\u1ea3i. b\u1eb1ng nhau, m\u1ed9t b\u1ed9 \u0111i\u1ec1u khi\u1ec3n APFC t\u1ef1 \u0111\u1ed9ng kh\u00f4ng l\u00e0m cho m\u1ed9t ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n th\u00f4ng th\u01b0\u1eddng m\u1ed9t b\u1ed9 l\u1ecdc h\u00e0i h\u00f2a ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n

Thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch c\u1ea7n ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec7m v\u1ee5 c\u1ee7a t\u1ee5 \u0111i\u1ec7n<\/h2>\n\n\n\n

Chuy\u1ec3n m\u1ea1ch t\u1ee5 \u0111i\u1ec7n kh\u00e1c v\u1edbi chuy\u1ec3n \u0111\u1ed5i t\u1ea3i \u0111i\u1ec7n tr\u1edf. n\u0103ng l\u01b0\u1ee3ng h\u00f3a c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn d\u00f2ng \u0111i\u1ec7n tho\u00e1ng qua cao, v\u00e0 c\u00e1c ho\u1ea1t \u0111\u1ed9ng l\u1eb7p \u0111i l\u1eb7p l\u1ea1i \u0111\u1eb7t nhi\u1ec7m v\u1ee5 tr\u00ean contactor ho\u1eb7c c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch kh\u00e1c. c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn n\u00ean ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c giai \u0111o\u1ea1n t\u1ee5 \u0111i\u1ec7n v\u00e0 t\u1ea7n s\u1ed1 ho\u1ea1t \u0111\u1ed9ng d\u1ef1 \u0111\u1ecbnh c\u1ee7a ch\u00fang.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi b\u1ea3ng ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n, y\u00eau c\u1ea7u lo\u1ea1i thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch, x\u1ebfp h\u1ea1ng, tr\u00ecnh t\u1ef1 ho\u1ea1t \u0111\u1ed9ng d\u1ef1 ki\u1ebfn v\u00e0 b\u1ea5t k\u1ef3 s\u1ef1 s\u1eafp x\u1ebfp gi\u1edbi h\u1ea1n kh\u1edfi \u0111\u1ed9ng c\u1ea7n thi\u1ebft n\u00e0o. nh\u00e0 cung c\u1ea5p c\u0169ng n\u00ean x\u00e1c \u0111\u1ecbnh b\u1ea3o v\u1ec7 cho t\u1eebng giai \u0111o\u1ea1n v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m ng\u1eafn m\u1ea1ch c\u1ee7a c\u1ee5m l\u1eafp r\u00e1p ho\u00e0n ch\u1ec9nh.<\/p>\n\n\n\n

IEC 61921:2017<\/a> c\u1ee5 th\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c ng\u00e2n h\u00e0ng hi\u1ec7u ch\u1ec9nh h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t \u0111i\u1ec7n \u00e1p th\u1ea5p v\u00e0 \u0111i\u1ec1u ch\u1ec9nh c\u00e1c y\u00eau c\u1ea7u l\u1eafp r\u00e1p hi\u1ec7n h\u00e0nh v\u1edbi IEC 61439-1 v\u00e0 IEC 61439-2. C\u00e1c \u0111\u1eb7c t\u00ednh ri\u00eang l\u1ebb c\u1ee7a t\u1ee5 \u0111i\u1ec7n v\u1eabn tu\u00e2n theo c\u00e1c ti\u00eau chu\u1ea9n t\u1ee5 \u0111i\u1ec7n hi\u1ec7n h\u00e0nh.<\/p>\n\n\n\n

Thi\u1ebft k\u1ebf nhi\u1ec7t v\u00e0 th\u00f4ng gi\u00f3 v\u1eabn c\u00f2n quan tr\u1ecdng<\/h2>\n\n\n\n

M\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n ch\u1ee9a c\u00e1c th\u00e0nh ph\u1ea7n t\u1ea3n nhi\u1ec7t: t\u1ed5n th\u1ea5t t\u1ee5 \u0111i\u1ec7n, t\u1ed5n th\u1ea5t thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch, c\u00f4ng su\u1ea5t b\u1ed9 \u0111i\u1ec1u khi\u1ec3n v\u00e0 b\u1ea5t k\u1ef3 l\u00f2 ph\u1ea3n \u1ee9ng n\u00e0o c\u00f3 trong thi\u1ebft k\u1ebf. Do \u0111\u00f3, v\u1ecf b\u1ecdc ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng nhi\u1ec7t ho\u00e0n ch\u1ec9nh trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t.<\/p>\n\n\n\n

Cung c\u1ea5p nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng chuy\u1ec3n m\u1ea1ch, \u0111\u1ed9 cao, h\u1ea1n ch\u1ebf th\u00f4ng gi\u00f3 v\u00e0 b\u1ea5t k\u1ef3 ngu\u1ed3n nhi\u1ec7t n\u00e0o g\u1ea7n \u0111\u00f3. n\u01a1i s\u1eed d\u1ee5ng l\u00f2 ph\u1ea3n \u1ee9ng, s\u1ef1 \u0111\u00f3ng g\u00f3p c\u1ee7a ch\u00fang v\u00e0o nhi\u1ec7t \u0111\u1ed9 bao v\u00e2y c\u00f3 th\u1ec3 \u0111\u00e1ng k\u1ec3 v\u00e0 n\u00ean \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o \u0111\u00e1nh gi\u00e1 thi\u1ebft k.<\/p>\n\n\n\n

Kh\u00f4ng cho r\u1eb1ng vi\u1ec7c m\u1edf th\u00eam khe th\u00f4ng gi\u00f3 l\u00e0 m\u1ed9t s\u1eeda ch\u1eefa l\u0129nh v\u1ef1c ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c. thay \u0111\u1ed5i bao v\u00e2y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn b\u1ea3o v\u1ec7 x\u00e2m nh\u1eadp, x\u00e1c minh nhi\u1ec7t \u0111\u1ed9-t\u0103ng v\u00e0 s\u1ef1 s\u1eafp x\u1ebfp \u0111\u01b0\u1ee3c bao ph\u1ee7 b\u1edfi b\u1eb1ng ch\u1ee9ng c\u1ee7a nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n

\u0110o t\u00edn hi\u1ec7u bi\u1ebfn d\u00f2ng ch\u00ednh x\u00e1c<\/h2>\n\n\n\n

M\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n t\u1ef1 \u0111\u1ed9ng ph\u1ee5 thu\u1ed9c v\u00e0o c\u1ea3m bi\u1ebfn ch\u00ednh x\u00e1c.N\u1ebfu m\u00e1y bi\u1ebfn d\u00f2ng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t sai \u0111i\u1ec3m, c\u00f3 ph\u00e2n c\u1ef1c sai ho\u1eb7c kh\u00f4ng \u0111\u1ea1i di\u1ec7n cho bus d\u1ef1 \u0111\u1ecbnh, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n c\u00f3 th\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh chuy\u1ec3n \u0111\u1ed5i kh\u00f4ng ch\u00ednh x\u00e1c ngay c\u1ea3 khi c\u00e1c giai \u0111o\u1ea1n t\u1ee5 \u0111i\u1ec7n t\u1ef1 kh\u1ecfe m\u1ea1nh.<\/p>\n\n\n\n

X\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed CT tr\u00ean s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1eddng \u0111\u01a1n v\u00e0 x\u00e1c \u0111\u1ecbnh t\u1ea3i v\u00e0 d\u00f2ng \u0111i\u1ec7n t\u1ee5 \u0111i\u1ec7n n\u00e0o \u0111\u01b0\u1ee3c bao g\u1ed3m trong ph\u00e9p \u0111o. x\u00e1c nh\u1eadn t\u1ef7 l\u1ec7, ph\u00e2n c\u1ef1c, x\u1ebfp h\u1ea1ng th\u1ee9 c\u1ea5p v\u00e0 k\u1ebft n\u1ed1i v\u1edbi b\u1ed9 \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi m\u1ed9t h\u1ec7 th\u1ed1ng c\u00f3 nhi\u1ec1u incomers ho\u1eb7c m\u1ed9t b\u1ed9 gh\u00e9p bus, gi\u1ea3i th\u00edch t\u1eebng ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c ph\u00e9p. m\u1ed9t s\u1ef1 s\u1eafp x\u1ebfp c\u1ea3m bi\u1ebfn ho\u1ea1t \u0111\u1ed9ng v\u1edbi m\u1ed9t incomer c\u00f3 th\u1ec3 kh\u00f4ng th\u1ec3 hi\u1ec7n ch\u00ednh x\u00e1c d\u00f2ng \u0111i\u1ec7n sau khi c\u1ea5u h\u00ecnh bus thay \u0111\u1ed5i.<\/p>\n\n\n\n

V\u00ed d\u1ee5: T\u1ea1i sao m\u1ed9t nh\u00e0 m\u00e1y c\u1ea7n d\u00e0n d\u1ef1ng t\u1ef1 \u0111\u1ed9ng<\/h2>\n\n\n\n
\"H\u1ec7<\/figure>\n\n\n\n

H\u00e3y xem x\u00e9t m\u1ed9t nh\u00e0 m\u00e1y gi\u1ea3 \u0111\u1ecbnh v\u1edbi ba d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t.Trong bu\u1ed5i s\u00e1ng, c\u1ea3 ba d\u00e2y chuy\u1ec1n ho\u1ea1t \u0111\u1ed9ng v\u00e0 y\u00eau c\u1ea7u b\u1ed3i th\u01b0\u1eddng t\u00ednh to\u00e1n l\u00e0 kho\u1ea3ng 360 kvar.T\u1ea1i b\u1eefa tr\u01b0a, m\u1ed9t d\u00e2y chuy\u1ec1n d\u1eebng l\u1ea1i v\u00e0 y\u00eau c\u1ea7u gi\u1ea3m xu\u1ed1ng kho\u1ea3ng 240 kvar.Trong m\u1ed9t ca l\u00e0m s\u1ea1ch bu\u1ed5i t\u1ed1i, ch\u1ec9 c\u00f2n l\u1ea1i t\u1ea3i ti\u1ec7n \u00edch v\u00e0 y\u00eau c\u1ea7u gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi 100 kvar.<\/p>\n\n\n\n

M\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n c\u1ed1 \u0111\u1ecbnh 350 kvar c\u00f3 th\u1ec3 g\u1ea7n v\u1edbi y\u00eau c\u1ea7u ban ng\u00e0y nh\u01b0ng qu\u00e1 m\u1ee9c trong \u0111i\u1ec1u ki\u1ec7n bu\u1ed5i t\u1ed1i. m\u1ed9t ng\u00e2n h\u00e0ng t\u1ef1 \u0111\u1ed9ng v\u1edbi c\u1ea5u tr\u00fac giai \u0111o\u1ea1n \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn th\u00edch h\u1ee3p c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m kvar \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i khi nhu c\u1ea7u quy n\u1ea1p gi\u1ea3m.<\/p>\n\n\n\n

V\u00ed d\u1ee5 n\u00e0y kh\u00f4ng thi\u1ebft l\u1eadp m\u1ed9t l\u1ecbch tr\u00ecnh giai \u0111o\u1ea1n ph\u1ed5 qu\u00e1t.N\u00f3 cho th\u1ea5y l\u00fd do t\u1ea1i sao ng\u01b0\u1eddi mua n\u00ean cung c\u1ea5p m\u1ed9t h\u1ed3 s\u01a1 t\u1ea3i d\u1ef1a tr\u00ean th\u1eddi gian ch\u1ee9 kh\u00f4ng ph\u1ea3i ch\u1ec9 c\u00f3 gi\u00e1 tr\u1ecb kW t\u1ed1i \u0111a.Thi\u1ebft k\u1ebf cu\u1ed1i c\u00f9ng c\u0169ng ph\u1ea3i t\u00ednh \u0111\u1ebfn s\u00f3ng h\u00e0i, h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t m\u1ee5c ti\u00eau, nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i v\u00e0 c\u00e1c y\u00eau c\u1ea7u ti\u1ec7n \u00edch.<\/p>\n\n\n\n

Ng\u01b0\u1eddi mua n\u00ean \u0111\u01b0a g\u00ec v\u00e0o RFQ<\/h2>\n\n\n\n
\u0110\u1ea7u v\u00e0o RFQ<\/th>T\u1ea1i sao n\u00f3 quan tr\u1ecdng<\/th>Ph\u1ea3n h\u1ed3i c\u1ee7a nh\u00e0 cung c\u1ea5p \u0111\u1ed1i v\u1edbi y\u00eau c\u1ea7u<\/th><\/tr><\/thead>
\u0110i\u1ec7n \u00e1p v\u00e0 t\u1ea7n s\u1ed1 h\u1ec7 th\u1ed1ng<\/td>X\u00e1c \u0111\u1ecbnh nhi\u1ec7m v\u1ee5 t\u1ee5 \u0111i\u1ec7n v\u00e0 chuy\u1ec3n m\u1ea1ch<\/td>\u0110i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c, t\u1ea7n s\u1ed1 v\u00e0 dung sai \u00e1p d\u1ee5ng<\/td><\/tr>
H\u1ed3 s\u01a1 t\u1ea3i theo th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng<\/td>Cho th\u1ea5y nhu c\u1ea7u ph\u1ea3n \u1ee9ng thay \u0111\u1ed5i nh\u01b0 th\u1ebf n\u00e0o<\/td>\u0110\u1ec1 xu\u1ea5t chi\u1ebfn l\u01b0\u1ee3c b\u1ed3i th\u01b0\u1eddng c\u1ed1 \u0111\u1ecbnh ho\u1eb7c theo giai \u0111o\u1ea1n<\/td><\/tr>
H\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t hi\u1ec7n t\u1ea1i v\u00e0 m\u1ee5c ti\u00eau<\/td>X\u00e1c \u0111\u1ecbnh m\u1ee5c ti\u00eau \u0111i\u1ec1u ch\u1ec9nh<\/td>C\u01a1 s\u1edf kvar \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n v\u00e0 m\u1ee5c ti\u00eau ki\u1ec3m so\u00e1t<\/td><\/tr>
\u0110o h\u00e0i h\u00f2a ho\u1eb7c lo\u1ea1i t\u1ea3i<\/td>X\u00e1c \u0111\u1ecbnh m\u1ed1i quan t\u00e2m c\u1ed9ng h\u01b0\u1edfng v\u00e0 bi\u1ebfn d\u1ea1ng<\/td>C\u1ea7n c\u00f3 l\u00f2 ph\u1ea3n \u1ee9ng ho\u1eb7c nghi\u00ean c\u1ee9u b\u1ed5 sung v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n<\/td><\/tr>
M\u1ee9c \u0111\u1ed9 l\u1ed7i v\u00e0 b\u1ea3o v\u1ec7 ng\u01b0\u1ee3c d\u00f2ng<\/td>Nh h\u01b0\u1edfng \u0111\u1ebfn b\u1ea3o v\u1ec7 l\u1eafp r\u00e1p v\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c<\/td>S\u01a1 \u0111\u1ed3 b\u1ea3o v\u1ec7 v\u00e0 \u0111\u1eb7c t\u00ednh ng\u1eafn m\u1ea1ch<\/td><\/tr>
\u0110i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 l\u1eafp \u0111\u1eb7t<\/td>Nh h\u01b0\u1edfng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 v\u00e0 thi\u1ebft k\u1ebf bao v\u00e2y<\/td>Y\u00eau c\u1ea7u l\u00e0m m\u00e1t, gi\u1ea3m nhi\u1ec7t v\u00e0 bao v\u00e2y<\/td><\/tr>
Gi\u00e1m s\u00e1t v\u00e0 truy\u1ec1n th\u00f4ng<\/td>X\u00e1c \u0111\u1ecbnh ph\u1ea1m vi t\u00edch h\u1ee3p<\/td>\u0110o s\u00e1ng, b\u00e1o \u0111\u1ed9ng, t\u00edn hi\u1ec7u b\u1ed9 \u0111i\u1ec1u khi\u1ec3n v\u00e0 giao di\u1ec7n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u0110\u1ed1i v\u1edbi m\u1ed9t y\u00eau c\u1ea7u b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n d\u1ef1a tr\u00ean GGJ, g\u1eedi s\u01a1 \u0111\u1ed3 \u0111\u01a1n d\u00f2ng, x\u1ebfp h\u1ea1ng m\u00e1y bi\u1ebfn \u00e1p, d\u1eef li\u1ec7u t\u1ea3i \u0111o \u0111\u01b0\u1ee3c v\u00e0 t\u1ea3i phi tuy\u1ebfn ch\u00ednh v\u1edbi nhau. \u0111i\u1ec1u n\u00e0y mang l\u1ea1i cho Lanshan m\u1ed9t c\u01a1 s\u1edf k\u1ef9 thu\u1eadt \u0111\u1ec3 \u0111\u1ec1 xu\u1ea5t t\u1ed5ng kvar, k\u00edch th\u01b0\u1edbc giai \u0111o\u1ea1n v\u00e0 ch\u1ee9c n\u0103ng \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n

N\u1ebfu d\u1ef1 \u00e1n c\u0169ng bao g\u1ed3m c\u00e1c thi\u1ebft b\u1ecb ph\u00e2n ph\u1ed1i ch\u00ednh, h\u00e3y ph\u1ed1i h\u1ee3p b\u1ea3ng ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n v\u1edbi Lanshan\u2019s d\u1ea3i switchgear \u0111i\u1ec7n \u00e1p th\u1ea5p<\/a>. T\u1ee7 b\u00f9 v\u00e0 t\u1ed5ng \u0111\u00e0i ch\u00ednh ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1c gi\u1ea3 \u0111\u1ecbnh nh\u1ea5t qu\u00e1n v\u1ec1 m\u1ee9c \u0111\u1ed9 l\u1ed7i, c\u00e1p v\u00e0 ch\u1ebf \u0111\u1ed9 v\u1eadn h\u00e0nh.<\/p>\n\n\n\n

C\u00e1ch so s\u00e1nh c\u00e1c \u0111\u1ec1 xu\u1ea5t c\u1ed1 \u0111\u1ecbnh v\u00e0 t\u1ef1 \u0111\u1ed9ng<\/h2>\n\n\n\n

So s\u00e1nh m\u1ed7i b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n cung c\u1ea5p tr\u00ean c\u00e1c tr\u01b0\u1eddng h\u1ee3p ho\u1ea1t \u0111\u1ed9ng gi\u1ed1ng nhau. kh\u00f4ng ch\u1ecdn m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng ch\u1ec9 v\u00ec n\u00f3 c\u00f3 nhi\u1ec1u th\u00e0nh ph\u1ea7n h\u01a1n, v\u00e0 kh\u00f4ng ch\u1ecdn m\u1ed9t ng\u00e2n h\u00e0ng c\u1ed1 \u0111\u1ecbnh ch\u1ec9 v\u00ec n\u00f3 xu\u1ea5t hi\u1ec7n \u0111\u01a1n gi\u1ea3n h\u01a1n. gi\u1ea3i ph\u00e1p b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n ch\u00ednh x\u00e1c l\u00e0 gi\u1ea3i ph\u00e1p c\u00f3 h\u00e0nh vi \u0111i\u1ec1u khi\u1ec3n ph\u00f9 h\u1ee3p v\u1edbi t\u1ea3i.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi m\u1ed7i \u0111\u1ec1 xu\u1ea5t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n, xem x\u00e9t t\u1ed5ng kvar, b\u01b0\u1edbc nh\u1ecf nh\u1ea5t, tr\u00ecnh t\u1ef1 giai \u0111o\u1ea1n, m\u1ee5c ti\u00eau b\u1ed9 \u0111i\u1ec1u khi\u1ec3n, lo\u1ea1i thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch, x\u1ebfp h\u1ea1ng \u0111i\u1ec7n \u00e1p t\u1ee5 \u0111i\u1ec7n, s\u1eafp x\u1ebfp x\u1ea3, b\u1ea3o v\u1ec7 v\u00e0 thi\u1ebft k\u1ebf nhi\u1ec7t. n\u01a1i c\u00e1c l\u00f2 ph\u1ea3n \u1ee9ng \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t, ghi l\u1ea1i m\u1ee5c \u0111\u00edch v\u00e0 c\u01a1 s\u1edf thi\u1ebft k\u1ebf c\u1ee7a ch\u00fang.<\/p>\n\n\n\n

Sau \u0111\u00f3 h\u1ecfi nh\u1eefng g\u00ec x\u1ea3y ra d\u01b0\u1edbi t\u1ea3i t\u1ed1i thi\u1ec3u, m\u1ea5t t\u00edn hi\u1ec7u CT, m\u1ea5t ngu\u1ed3n \u0111i\u1ec1u khi\u1ec3n v\u00e0 m\u1ed9t giai \u0111o\u1ea1n th\u1ea5t b\u1ea1i. nh\u1eefng c\u00e2u h\u1ecfi ho\u1ea1t \u0111\u1ed9ng n\u00e0y ph\u01a1i b\u00e0y nh\u1eefng kh\u00e1c bi\u1ec7t quan tr\u1ecdng m\u00e0 m\u1ed9t so s\u00e1nh c\u00f4ng su\u1ea5t m\u1ed9t d\u00f2ng s\u1ebd b\u1ecf l.<\/p>\n\n\n\n

K\u1ebft lu\u1eadn<\/h2>\n\n\n\n

S\u1ef1 l\u1ef1a ch\u1ecdn gi\u1eefa b\u00f9 c\u1ed1 \u0111\u1ecbnh v\u00e0 b\u1ea3ng ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n t\u1ef1 \u0111\u1ed9ng ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1ch c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng thay \u0111\u1ed5i theo th\u1eddi gian. t\u1ea3i \u1ed5n \u0111\u1ecbnh c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn c\u1ed1 \u0111\u1ecbnh \u0111\u01a1n gi\u1ea3n; xe bu\u00fdt bi\u1ebfn \u0111\u1ed5i th\u01b0\u1eddng c\u1ea7n \u0111i\u1ec1u khi\u1ec3n theo giai \u0111o\u1ea1n c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf kvar c\u0169ng nh\u01b0 th\u00eam n\u00f3.<\/p>\n\n\n\n

Tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng, h\u00e3y x\u00e1c minh c\u1ea5u h\u00ecnh t\u1ea3i, h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t m\u1ee5c ti\u00eau, m\u00f4i tr\u01b0\u1eddng h\u00e0i h\u00f2a, c\u1ea5u tr\u00fac b\u01b0\u1edbc v\u00e0 b\u1ed1 tr\u00ed c\u1ea3m bi\u1ebfn. Li\u00ean h\u1ec7 Lanshan Electric<\/a> v\u1edbi s\u01a1 \u0111\u1ed3 m\u1ed9t d\u00f2ng, d\u1eef li\u1ec7u m\u00e1y bi\u1ebfn \u00e1p v\u00e0 th\u00f4ng tin t\u1ea3i \u0111o \u0111\u01b0\u1ee3c \u0111\u1ec3 th\u1ea3o lu\u1eadn v\u1ec1 c\u1ea5u h\u00ecnh b\u00f9 c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng GGJ cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa m\u1ed9t ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n c\u1ed1 \u0111\u1ecbnh v\u00e0 m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n APFC l\u00e0 g\u00ec?<\/h3>\n\n\n\n

M\u1ed9t ng\u00e2n h\u00e0ng c\u1ed1 \u0111\u1ecbnh cung c\u1ea5p m\u1ed9t kvar x\u00e1c \u0111\u1ecbnh b\u1ea5t c\u1ee9 khi n\u00e0o n\u00f3 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i. m\u1ed9t b\u1ea3ng APFC chuy\u1ec3n c\u00e1c giai \u0111o\u1ea1n t\u1ee5 \u0111i\u1ec7n theo \u0111i\u1ec1u ki\u1ec7n c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng ho\u1eb7c h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t \u0111o \u0111\u01b0\u1ee3c, l\u00e0m cho n\u00f3 ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi xe bu\u00fdt c\u00f3 t\u1ea3i thay \u0111\u1ed5i.<\/p>\n\n\n\n

B\u1ea3ng ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh s\u00f3ng h\u00e0i kh\u00f4ng?<\/h3>\n\n\n\n

M\u1ed9t b\u1ea3ng ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n th\u00f4ng th\u01b0\u1eddng \u0111i\u1ec1u ch\u1ec9nh c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng nh\u01b0ng kh\u00f4ng t\u1ef1 \u0111\u1ed9ng l\u00e0 b\u1ed9 l\u1ecdc h\u00e0i h\u00f2a.Trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 t\u1ea3i phi tuy\u1ebfn \u0111\u00e1ng k\u1ec3, th\u1ef1c hi\u1ec7n \u0111\u00e1nh gi\u00e1 h\u00e0i h\u00f2a v\u00e0 c\u1ed9ng h\u01b0\u1edfng tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh xem c\u00f3 c\u1ea7n l\u00f2 ph\u1ea3n \u1ee9ng hay ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3m thi\u1ec3u kh\u00e1c hay kh\u00f4ng.<\/p>\n\n\n\n

L\u00e0m c\u00e1ch n\u00e0o \u0111\u1ec3 t\u00ednh to\u00e1n t\u1ee5 \u0111i\u1ec7n kvar c\u1ea7n thi\u1ebft?<\/h3>\n\n\n\n

M\u1ed9t c\u00f4ng th\u1ee9c quy ho\u1ea1ch ph\u1ed5 bi\u1ebfn l\u00e0 Qc = P \u00d7 (tan\u03c61 \u2212 tan\u03c62), s\u1eed d\u1ee5ng c\u00f4ng su\u1ea5t th\u1ef1c v\u00e0 c\u00e1c g\u00f3c h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t ban \u0111\u1ea7u v\u00e0 m\u1ee5c ti\u00eau. k\u00edch th\u01b0\u1edbc ng\u00e2n h\u00e0ng cu\u1ed1i c\u00f9ng v\u00e0 c\u00e1c giai \u0111o\u1ea1n n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m tra d\u1ef1a tr\u00ean nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t gi\u00e1 tr\u1ecb t\u1ea3i cao \u0111i\u1ec3m.<\/p>\n\n\n\n

M\u1ed9t ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n qu\u00e1 kh\u1ed5 c\u00f3 th\u1ec3 g\u00e2y ra v\u1ea5n \u0111\u1ec1?<\/h3>\n\n\n\n

C\u00f3. kvar \u0111i\u1ec7n dung d\u01b0 th\u1eeba c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t h\u00e0ng \u0111\u1ea7u, thay \u0111\u1ed5i \u0111i\u1ec7n \u00e1p v\u00e0 c\u0103ng th\u1eb3ng t\u1ee5 \u0111i\u1ec7n kh\u00f4ng c\u1ea7n thi\u1ebft. xem x\u00e9t \u0111i\u1ec1u ki\u1ec7n t\u1ea3i t\u1ed1i thi\u1ec3u v\u00e0 \u0111\u1ea3m b\u1ea3o m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng c\u00f3 th\u1ec3 ng\u1eaft k\u1ebft n\u1ed1i \u0111\u1ee7 giai \u0111o\u1ea1n khi nhu c\u1ea7u ph\u1ea3n \u1ee9ng gi\u1ea3m.<\/p>\n\n\n\n

T\u00f4i n\u00ean g\u1eedi th\u00f4ng tin g\u00ec cho cu\u1ed9c \u0111i\u1ec1u tra n\u1ed9i c\u00e1c b\u1ed3i th\u01b0\u1eddng c\u1ee7a GGJ?<\/h3>\n\n\n\n

Cung c\u1ea5p \u0111i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng, k\u00edch th\u01b0\u1edbc m\u00e1y bi\u1ebfn \u00e1p, s\u01a1 \u0111\u1ed3 \u0111\u01a1n d\u00f2ng, h\u1ed3 s\u01a1 t\u1ea3i, h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t hi\u1ec7n c\u00f3 v\u00e0 m\u1ee5c ti\u00eau, th\u00f4ng tin h\u00e0i h\u00f2a, d\u1eef li\u1ec7u l\u1ed7i v\u00e0 \u0111i\u1ec1u ki\u1ec7n c\u00e0i \u0111\u1eb7t. bao g\u1ed3m b\u1ea5t k\u1ef3 y\u00eau c\u1ea7u gi\u00e1m s\u00e1t ho\u1eb7c truy\u1ec1n th\u00f4ng n\u00e0o \u0111\u1ec3 c\u1ea5u h\u00ecnh \u0111\u1ec1 xu\u1ea5t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t nh\u01b0 m\u1ed9t h\u1ec7 th\u1ed1ng ho\u00e0n ch\u1ec9nh.<\/p>","protected":false},"excerpt":{"rendered":"

A capacitor bank panel should match the way reactive power changes in the actual electrical system. A fixed bank can be effective when the inductive load is stable, while an automatic APFC panel can add or remove capacitor stages as demand changes. Choosing between them is therefore a control problem as much as a kvar […]<\/p>\n","protected":false},"author":1,"featured_media":802,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[116,118,115,120,119,117],"class_list":["post-1458","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-apfc-panel","tag-capacitor-bank","tag-capacitor-bank-panel","tag-ggj-compensation-cabinet","tag-power-factor-correction","tag-reactive-power-compensation"],"_links":{"self":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts\/1458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/comments?post=1458"}],"version-history":[{"count":1,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts\/1458\/revisions"}],"predecessor-version":[{"id":1459,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts\/1458\/revisions\/1459"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/media\/802"}],"wp:attachment":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/media?parent=1458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/categories?post=1458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/tags?post=1458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}