{"id":2559,"date":"2026-07-16T14:00:00","date_gmt":"2026-07-16T06:00:00","guid":{"rendered":"https:\/\/cnbygele.com\/?p=2559"},"modified":"2026-08-24T18:10:09","modified_gmt":"2026-08-24T10:10:09","slug":"ieee-519-harmonic-limits-apf-sizing","status":"publish","type":"post","link":"https:\/\/cnbygele.com\/vi\/blog\/ieee-519-harmonic-limits-apf-sizing\/","title":{"rendered":"Gi\u1edbi h\u1ea1n s\u00f3ng h\u00e0i IEEE 519: Nh\u1eefng g\u00ec c\u1ea7n x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc khi t\u00ednh ch\u1ecdn APF"},"content":{"rendered":"<hr \/>\n<p><strong>Gi\u1edbi h\u1ea1n s\u00f3ng h\u00e0i IEEE 519<\/strong> l\u00e0 m\u1ed9t khung thi\u1ebft k\u1ebf v\u00e0 x\u00e1c minh d\u1ef1a tr\u00ean PCC \u0111\u1ed1i v\u1edbi \u0111\u1ed9 m\u00e9o \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n \u1edf tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh. Tr\u01b0\u1edbc khi m\u1ed9t b\u1ed9 l\u1ecdc c\u00f4ng su\u1ea5t t\u00edch \u0111i\u1ec3m \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc, k\u1ef9 s\u01b0 n\u00ean x\u00e1c \u0111\u1ecbnh \u0111i\u1ec3m chung (PCC) c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, x\u00e1c \u0111\u1ecbnh xem \u0111\u1ed9 m\u00e9o \u0111i\u1ec7n \u00e1p hay d\u00f2ng \u0111i\u1ec7n l\u00e0 v\u1ea5n \u0111\u1ec1 quy\u1ebft \u0111\u1ecbnh, thu th\u1eadp d\u1eef li\u1ec7u nhu c\u1ea7u t\u1ed1i \u0111a v\u00e0 ng\u1eafn m\u1ea1ch, \u0111\u1ed3ng th\u1eddi l\u1ea5y m\u1ed9t b\u1ea3n ghi s\u00f3ng h\u00e0i mang t\u00ednh \u0111\u1ea1i di\u1ec7n.<\/p>\n<p>\u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 cam k\u1ebft tu\u00e2n th\u1ee7 cho b\u1ea5t k\u1ef3 s\u1ea3n ph\u1ea9m n\u00e0o. \u0110\u00e2y l\u00e0 m\u1ed9t c\u00e1ch thi\u1ebft th\u1ef1c \u0111\u1ec3 bi\u1ebfn m\u1ed9t y\u00eau c\u1ea7u m\u01a1 h\u1ed3\u2014\u201c\u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n IEEE 519\u201d\u2014th\u00e0nh m\u1ed9t ph\u1ea1m vi c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1ed1i v\u1edbi c\u00f4ng ty \u0111i\u1ec7n l\u1ef1c, \u0111\u1ed9i ng\u0169 nh\u00e0 m\u00e1y, t\u01b0 v\u1ea5n vi\u00ean v\u00e0 nh\u00e0 cung c\u1ea5p thi\u1ebft b\u1ecb l\u1ecdc s\u00f3ng h\u00e0i.<\/p>\n<h2>M\u1ee5c l\u1ee5c<\/h2>\n<ul>\n<li>Ph\u1ea7n 1: Ph\u1ea1m vi c\u1ee7a IEEE 519<\/li>\n<li>Ph\u1ea7n 2: \u0110\u1ecbnh ngh\u0129a v\u00e0 v\u1ecb tr\u00ed PCC<\/li>\n<li>Ph\u1ea7n 3: T\u1ed5ng m\u00e9o s\u00f3ng h\u00e0i \u0111i\u1ec7n \u00e1p (voltage THD) so v\u1edbi t\u1ed5ng m\u00e9o s\u00f3ng h\u00e0i d\u00f2ng \u0111i\u1ec7n (current TDD)<\/li>\n<li>Ph\u1ea7n 4: C\u00e1c h\u00e0ng Isc\/IL v\u00e0 m\u00e9o d\u00f2ng \u0111i\u1ec7n<\/li>\n<li>Ph\u1ea7n 5: b\u1ea3n ghi \u0111o l\u01b0\u1eddng tr\u01b0\u1edbc khi \u0111\u1ecbnh c\u1ee1<\/li>\n<li>Ph\u1ea7n 6: chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u th\u00e0nh ph\u1ea1m vi gi\u1ea3m thi\u1ec3u<\/li>\n<li>Ph\u1ea7n 7: C\u00e1c \u0111\u1ea7u v\u00e0o RFQ v\u00e0 Gi\u1edbi h\u1ea1n Ph\u00f9 h\u1ee3p<\/li>\n<\/ul>\n<figure><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1712\" src=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/985c0db01b3e45f18a5857f01a124c3a.webp\" alt=\"Thi\u1ebft b\u1ecb \u0111o ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n cho \u0111\u00e1nh gi\u00e1 h\u00e0i h\u00f2a IEEE 519\" class=\"wp-image-2092\" srcset=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/985c0db01b3e45f18a5857f01a124c3a.webp 2560w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/985c0db01b3e45f18a5857f01a124c3a-300x201.webp 300w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/985c0db01b3e45f18a5857f01a124c3a-1024x685.webp 1024w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/985c0db01b3e45f18a5857f01a124c3a-768x514.webp 768w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/985c0db01b3e45f18a5857f01a124c3a-1536x1027.webp 1536w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/985c0db01b3e45f18a5857f01a124c3a-2048x1370.webp 2048w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/985c0db01b3e45f18a5857f01a124c3a-18x12.webp 18w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/985c0db01b3e45f18a5857f01a124c3a-600x401.webp 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption>C\u00f4ng vi\u1ec7c theo ti\u00eau chu\u1ea9n IEEE 519 b\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t PCC \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh v\u00e0 m\u1ed9t b\u1ea3n ghi \u0111o l\u01b0\u1eddng c\u00f3 th\u1ec3 truy nguy\u00ean.<\/figcaption><\/figure>\n<h2>Ph\u1ea7n 1. C\u00e1c gi\u1edbi h\u1ea1n s\u00f3ng h\u00e0i theo ti\u00eau chu\u1ea9n IEEE 519 qu\u1ea3n l\u00fd nh\u1eefng v\u1ea5n \u0111\u1ec1 g\u00ec?<\/h2>\n<p>IEEE 519 thi\u1ebft l\u1eadp c\u00e1c m\u1ee5c ti\u00eau thi\u1ebft k\u1ebf ki\u1ec3m so\u00e1t s\u00f3ng h\u00e0i cho c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n bao g\u1ed3m c\u00e1c t\u1ea3i tuy\u1ebfn t\u00ednh v\u00e0 phi tuy\u1ebfn t\u00ednh. Hi\u1ec7p h\u1ed9i Ti\u00eau chu\u1ea9n IEEE m\u00f4 t\u1ea3 giao di\u1ec7n gi\u1eefa ngu\u1ed3n v\u00e0 t\u1ea3i l\u00e0 \u0111i\u1ec3m chung k\u1ebft n\u1ed1i v\u00e0 n\u00eau r\u00f5 ti\u00eau chu\u1ea9n n\u00e0y gi\u1ea3i quy\u1ebft c\u00e1c gi\u1edbi h\u1ea1n \u1edf ch\u1ebf \u0111\u1ed9 thi\u1ebft l\u1eadp. Ranh gi\u1edbi \u0111\u00f3 r\u1ea5t quan tr\u1ecdng: m\u1ed9t s\u1ef1 ki\u1ec7n t\u1ee9c th\u1eddi, m\u1ed9t ch\u1ec9 s\u1ed1 \u0111\u1ecdc t\u1ea1i \u0111\u1ea7u c\u1ef1c b\u1ed9 truy\u1ec1n \u0111\u1ed9ng v\u00e0 m\u1ed9t k\u1ebft qu\u1ea3 PCC c\u1ee7a ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1c ph\u00e9p \u0111o c\u00f3 th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau.<\/p>\n<p>\u0110\u1ed1i v\u1edbi m\u1ed9t c\u01a1 s\u1edf c\u00f4ng nghi\u1ec7p, ti\u00eau chu\u1ea9n gi\u00fap ph\u00e2n t\u00e1ch hai tr\u00e1ch nhi\u1ec7m. Ng\u01b0\u1eddi s\u1eed d\u1ee5ng ki\u1ec3m so\u00e1t vi\u1ec7c b\u01a1m d\u00f2ng \u0111i\u1ec7n s\u00f3ng h\u00e0i t\u1eeb c\u00e1c t\u1ea3i phi tuy\u1ebfn t\u00ednh. T\u00ecnh tr\u1ea1ng m\u00e9o \u0111i\u1ec7n \u00e1p c\u1ee7a h\u1ec7 th\u1ed1ng ngu\u1ed3n \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 t\u1ea1i c\u00f9ng m\u1ed9t \u0111i\u1ec3m giao di\u1ec7n. Do \u0111\u00f3, m\u1ed9t d\u1ef1 \u00e1n th\u00e0nh c\u00f4ng \u0111\u00f2i h\u1ecfi th\u00f4ng tin v\u1ec1 ngu\u1ed3n v\u00e0 th\u00f4ng tin v\u1ec1 t\u1ea3i, thay v\u00ec ch\u1ec9 l\u00e0 m\u1ed9t danh m\u1ee5c b\u1ed9 l\u1ecdc ho\u1eb7c m\u1ed9t t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m m\u1ee5c ti\u00eau \u0111\u01b0\u1ee3c sao ch\u00e9p t\u1eeb nh\u00e0 m\u00e1y kh\u00e1c.<\/p>\n<table>\n<thead>\n<tr>\n<th>C\u00e2u h\u1ecfi<\/th>\n<th>C\u00e2u tr\u1ea3 l\u1eddi theo \u0111\u1ecbnh h\u01b0\u1edbng IEEE 519<\/th>\n<th>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c mua s\u1eafm<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>C\u00e1c m\u1ee5c ti\u00eau \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 \u1edf \u0111\u00e2u?<\/td>\n<td>T\u1ea1i PCC c\u1ee7a ng\u01b0\u1eddi d\u00f9ng \u0111\u00e3 x\u00e1c \u0111\u1ecbnh<\/td>\n<td>\u0110\u01b0a PCC v\u00e0o m\u1ed9t d\u00f2ng tr\u01b0\u1edbc khi so s\u00e1nh d\u1eef li\u1ec7u<\/td>\n<\/tr>\n<tr>\n<td>N\u00f3 c\u00f3 bao g\u1ed3m c\u00e1c s\u1ef1 ki\u1ec7n chuy\u1ec3n ti\u1ebfp kh\u00f4ng?<\/td>\n<td>Ph\u1ea1m vi \u0111\u00e3 n\u00eau l\u00e0 m\u00e9o d\u1ea1ng tr\u1ea1ng th\u00e1i thi\u1ebft l\u1eadp<\/td>\n<td>Gi\u1eef c\u00e1c nghi\u00ean c\u1ee9u v\u1ec1 s\u1ef1 ki\u1ec7n v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea5p nh\u00e1y t\u00e1ch bi\u1ec7t nhau<\/td>\n<\/tr>\n<tr>\n<td>D\u00f2ng \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n \u00e1p c\u00f3 \u0111\u01b0\u1ee3c ki\u1ec3m tra gi\u1ed1ng nhau kh\u00f4ng?<\/td>\n<td>Kh\u00f4ng; ch\u00fang s\u1eed d\u1ee5ng c\u00e1c s\u1ed1 l\u01b0\u1ee3ng v\u00e0 gi\u1edbi h\u1ea1n kh\u00e1c nhau<\/td>\n<td>Y\u00eau c\u1ea7u c\u1ea3 b\u1ea3n ghi \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n<\/td>\n<\/tr>\n<tr>\n<td>Ti\u00eau chu\u1ea9n c\u00f3 ch\u1ecdn m\u1ed9t thi\u1ebft b\u1ecb kh\u00f4ng?<\/td>\n<td>Kh\u00f4ng; n\u00f3 thi\u1ebft l\u1eadp m\u1ed9t m\u1ee5c ti\u00eau thi\u1ebft k\u1ebf d\u1ef1a tr\u00ean d\u1eef li\u1ec7u<\/td>\n<td>T\u1ea1o ph\u1ea1m vi c\u00f4ng su\u1ea5t k\u1ef9 thu\u1eadt tr\u01b0\u1edbc khi x\u00e1c \u0111\u1ecbnh dung l\u01b0\u1ee3ng APF<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ti\u00eau chu\u1ea9n n\u00e0y c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u1ecdc k\u1ebft h\u1ee3p v\u1edbi c\u00e1c y\u00eau c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n, quy t\u1eafc v\u1ec1 \u0111i\u1ec7n n\u0103ng, quy \u0111\u1ecbnh l\u01b0\u1edbi \u0111i\u1ec7n hi\u1ec7n h\u00e0nh, v\u00e0 c\u00e1c ti\u00eau ch\u00ed thi\u1ebft k\u1ebf\/b\u1ea3o v\u1ec7 c\u1ee7a nh\u00e0 m\u00e1y. Ti\u00eau chu\u1ea9n n\u00e0y kh\u00f4ng ch\u1ee9ng nh\u1eadn thi\u1ebft b\u1ecb c\u1ee7a nh\u00e0 c\u00e1i (nh\u00e0 cung c\u1ea5p) hay lo\u1ea1i b\u1ecf s\u1ef1 c\u1ea7n thi\u1ebft c\u1ee7a c\u00e1c b\u1eb1ng ch\u1ee9ng ch\u1ea1y th\u1eed.<\/p>\n<h2>Ph\u1ea7n 2. K\u1ef9 s\u01b0 n\u00ean x\u00e1c \u0111\u1ecbnh v\u00e0 \u0111o l\u01b0\u1eddng PCC \u1edf \u0111\u00e2u?<\/h2>\n<p>PCC th\u01b0\u1eddng l\u00e0 \u0111i\u1ec3m \u0111i\u1ec7n g\u1ea7n v\u1edbi ng\u01b0\u1eddi d\u00f9ng nh\u1ea5t n\u01a1i ch\u1ee7 s\u1edf h\u1eefu ho\u1eb7c \u0111\u01a1n v\u1ecb v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 cung c\u1ea5p d\u1ecbch v\u1ee5 cho m\u1ed9t ng\u01b0\u1eddi d\u00f9ng kh\u00e1c. \u0110\u00e1nh gi\u00e1 IEEE 519 c\u1ee7a ABB l\u01b0u \u00fd r\u1eb1ng \u0111\u1ed1i v\u1edbi m\u1ed9t nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n qua m\u1ed9t m\u00e1y bi\u1ebfn \u00e1p chuy\u00ean d\u1ee5ng, \u0111\u00e2y th\u01b0\u1eddng l\u00e0 ph\u00eda cao \u00e1p c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p \u0111\u00f3; v\u1ecb tr\u00ed th\u1ef1c t\u1ebf ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh t\u1eeb s\u01a1 \u0111\u1ed3 h\u1ec7 th\u1ed1ng.<\/p>\n<p>C\u00e1c ph\u00e9p \u0111o n\u1ed9i b\u1ed9 v\u1eabn c\u00f3 gi\u00e1 tr\u1ecb. B\u1ed9 c\u1ea5p \u0111\u1ed9ng c\u01a1 ti\u1ebft l\u1ed9 quang ph\u1ed5 ngu\u1ed3n. T\u1ee7 MCC cho th\u1ea5y s\u1ef1 t\u1eadp h\u1ee3p c\u1ee7a m\u1ed9t s\u1ed1 t\u1ea3i. Th\u1ee9 c\u1ea5p m\u00e1y bi\u1ebfn \u00e1p c\u00f3 th\u1ec3 cho bi\u1ebft thanh c\u00e1i c\u00f3 b\u1ecb \u1ea3nh h\u01b0\u1edfng hay kh\u00f4ng. Kh\u00f4ng c\u00f3 c\u00e1i n\u00e0o trong s\u1ed1 \u0111\u00f3 t\u1ef1 \u0111\u1ed9ng tr\u1edf th\u00e0nh PCC \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u1ed9t y\u00eau c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n.<\/p>\n<table>\n<thead>\n<tr>\n<th>V\u1ecb tr\u00ed<\/th>\n<th>S\u1eed d\u1ee5ng t\u1ed1t nh\u1ea5t<\/th>\n<th>Nh\u1eefng g\u00ec n\u00f3 kh\u00f4ng th\u1ec3 t\u1ef1 thi\u1ebft l\u1eadp<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0110\u01b0\u1eddng d\u00e2y c\u1ea5p ngu\u1ed3n t\u1ea3i phi tuy\u1ebfn t\u00ednh ri\u00eang l\u1ebb<\/td>\n<td>Ch\u1ea9n \u0111o\u00e1n ngu\u1ed3n<\/td>\n<td>Ti\u00eam d\u00f2ng \u0111i\u1ec7n to\u00e0n b\u1ed9 nh\u00e0 m\u00e1y<\/td>\n<\/tr>\n<tr>\n<td>B\u1ea3ng quy tr\u00ecnh \/ Bo m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n MCC<\/td>\n<td>T\u1ea3i quy tr\u00ecnh t\u1ed5ng h\u1ee3p<\/td>\n<td>Hi\u1ec7u su\u1ea5t Ti\u1ec7n \u00edch\/PCC<\/td>\n<\/tr>\n<tr>\n<td>Cu\u1ed9n th\u1ee9 c\u1ea5p m\u00e1y bi\u1ebfn \u00e1p<\/td>\n<td>T\u00ecnh tr\u1ea1ng xe bus th\u1ef1c v\u1eadt<\/td>\n<td>PCC kh\u00f4ng c\u00f3 x\u00e1c nh\u1eadn quy\u1ec1n s\u1edf h\u1eefu\/ng\u1eef c\u1ea3nh giao di\u1ec7n<\/td>\n<\/tr>\n<tr>\n<td>X\u00e1c \u0111\u1ecbnh PCC<\/td>\n<td>\u0110\u00e1nh gi\u00e1 d\u1ef1a tr\u00ean chu\u1ea9n<\/td>\n<td>X\u00e1c \u0111\u1ecbnh ngu\u1ed3n c\u1ee5c b\u1ed9 kh\u00f4ng c\u00f3 d\u1eef li\u1ec7u tuy\u1ebfn c\u1ea5p h\u1ed7 tr\u1ee3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote>\n<p><strong>Quan tr\u1ecdng:<\/strong> Kh\u00f4ng thay th\u1ebf v\u1ecb tr\u00ed \u0111\u1ed3ng h\u1ed3 \u0111o tr\u00ean t\u1ee7 \u0111i\u1ec7n thu\u1eadn ti\u1ec7n cho PCC. Ph\u1ea1m vi c\u1ee7a ti\u00eau chu\u1ea9n IEEE 519 l\u00e0 giao di\u1ec7n ngu\u1ed3n\/t\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh cho h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t (<a href=\"https:\/\/standards.ieee.org\/ieee\/519\/10677\/\" rel=\"nofollow noopener\" target=\"_blank\">IEEE 519-2022<\/a>).<\/p>\n<\/blockquote>\n<h2>Ph\u1ea7n 3. T\u1ea1i sao THD \u0111i\u1ec7n \u00e1p v\u00e0 TDD d\u00f2ng \u0111i\u1ec7n l\u1ea1i l\u00e0 hai ph\u00e9p ki\u1ec3m tra kh\u00e1c nhau?<\/h2>\n<p>\u0110\u1ed9 m\u00e9o d\u1ea1ng s\u00f3ng h\u00e0i t\u1ed5ng \u0111i\u1ec7n \u00e1p m\u00f4 t\u1ea3 s\u1ef1 m\u00e9o d\u1ea1ng c\u1ee7a d\u1ea1ng s\u00f3ng \u0111i\u1ec7n \u00e1p. \u0110\u1ed9 m\u00e9o d\u1ea1ng nhu c\u1ea7u t\u1ed5ng d\u00f2ng \u0111i\u1ec7n (TDD) th\u1ec3 hi\u1ec7n d\u00f2ng \u0111i\u1ec7n s\u00f3ng h\u00e0i so v\u1edbi d\u00f2ng \u0111i\u1ec7n t\u1ea3i nhu c\u1ea7u t\u1ed1i \u0111a. THD d\u00f2ng \u0111i\u1ec7n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 THDi, s\u1eed d\u1ee5ng d\u00f2ng \u0111i\u1ec7n c\u01a1 b\u1ea3n t\u1ee9c th\u1eddi l\u00e0m m\u1eabu s\u1ed1 c\u1ee7a n\u00f3. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 gi\u00e1 tr\u1ecb THDi \u1edf t\u1ea3i nh\u1eb9 c\u00f3 th\u1ec3 c\u00f3 v\u1ebb cao m\u00e0 kh\u00f4ng m\u00f4 t\u1ea3 c\u00f9ng m\u1ed9t \u0111\u00e1nh gi\u00e1 m\u00e9o d\u1ea1ng d\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho ti\u00eau chu\u1ea9n IEEE 519.<\/p>\n<p>T\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt c\u1ee7a Mirus n\u00eau r\u1eb1ng d\u00f2ng \u0111i\u1ec7n THD kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m m\u1eabu s\u1ed1 tu\u00e2n th\u1ee7 d\u00f2ng \u0111i\u1ec7n; TDD g\u1eafn li\u1ec1n v\u1edbi d\u00f2ng \u0111i\u1ec7n nhu c\u1ea7u. M\u1ed9t nh\u00f3m c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng THD d\u00f2ng \u0111i\u1ec7n \u0111\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1, nh\u01b0ng kh\u00f4ng n\u00ean bi\u1ebfn m\u00e0n h\u00ecnh t\u1ea3i nh\u1eb9 t\u1ee9c th\u1eddi th\u00e0nh th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u00f4ng su\u1ea5t APF.<\/p>\n<table>\n<thead>\n<tr>\n<th>S\u1ed1 l\u01b0\u1ee3ng<\/th>\n<th>M\u1eabu s\u1ed1<\/th>\n<th>Vai tr\u00f2 th\u1ef1c t\u1ebf<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0110\u1ed9 m\u00e9o s\u00f3ng h\u00e0i \u0111i\u1ec7n \u00e1p<\/td>\n<td>\u0110i\u1ec7n \u00e1p c\u01a1 b\u1ea3n<\/td>\n<td>\u0110o l\u01b0\u1eddng s\u1ef1 bi\u1ebfn d\u1ea1ng d\u1ea1ng s\u00f3ng \u0111i\u1ec7n \u00e1p t\u1ea1i \u0111i\u1ec3m li\u00ean quan<\/td>\n<\/tr>\n<tr>\n<td>THDi hi\u1ec7n t\u1ea1i<\/td>\n<td>D\u00f2ng \u0111i\u1ec7n c\u01a1 b\u1ea3n t\u1ee9c th\u1eddi<\/td>\n<td>H\u1eefu \u00edch cho vi\u1ec7c ch\u1ea9n \u0111o\u00e1n ngu\u1ed3n\/t\u1ea3i tr\u1ef1c ti\u1ebfp<\/td>\n<\/tr>\n<tr>\n<td>TDD hi\u1ec7n t\u1ea1i<\/td>\n<td>D\u00f2ng \u0111i\u1ec7n t\u1ea3i nhu c\u1ea7u c\u1ef1c \u0111\u1ea1i, IL<\/td>\n<td>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 m\u00e9o d\u00f2ng \u0111i\u1ec7n theo ti\u00eau chu\u1ea9n IEEE 519<\/td>\n<\/tr>\n<tr>\n<td>D\u00f2ng \u0111i\u1ec7n h\u00e0i b\u1eadc ri\u00eang l\u1ebb<\/td>\n<td>IL cho ng\u1eef c\u1ea3nh gi\u1edbi h\u1ea1n<\/td>\n<td>Hi\u1ec3n th\u1ecb c\u00e1c \u0111\u01a1n h\u00e0ng chi\u1ebfm \u01b0u th\u1ebf trong nhu c\u1ea7u<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote>\n<p><strong>T\u1eeb l\u0129nh v\u1ef1c:<\/strong> C\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng h\u1ecfi l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ph\u00e2n bi\u1ec7t \u201cTHD, thd, TDD\u201d v\u00e0 d\u00f2ng \u0111i\u1ec7n nhu c\u1ea7u c\u1ef1c \u0111\u1ea1i \u0111\u01b0\u1ee3c l\u1ea5y nh\u01b0 th\u1ebf n\u00e0o (<a href=\"https:\/\/community.se.com\/t5\/Metering-Power-Quality\/Power-quality-analysis-THD-thd-TDD\/td-p\/44210\" rel=\"nofollow noopener\" target=\"_blank\">Th\u1ea3o lu\u1eadn c\u1ed9ng \u0111\u1ed3ng Schneider Electric<\/a>). C\u00e2u h\u1ecfi x\u00e1c \u0111\u1ecbnh m\u1ed9t y\u00eau c\u1ea7u d\u1eef li\u1ec7u; n\u00f3 kh\u00f4ng ch\u1ee9ng minh gi\u1edbi h\u1ea1n c\u1ee7a m\u1ed9t trang web hay dung l\u01b0\u1ee3ng thi\u1ebft b\u1ecb.<\/p>\n<\/blockquote>\n<h2>Ph\u1ea7n 4. Isc\/IL \u1ea3nh h\u01b0\u1edfng th\u1ebf n\u00e0o \u0111\u1ebfn vi\u1ec7c \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 m\u00e9o d\u00f2ng \u0111i\u1ec7n?<\/h2>\n<p>Isc l\u00e0 d\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch kh\u1ea3 d\u1ee5ng t\u1ea1i PCC. IL l\u00e0 d\u00f2ng \u0111i\u1ec7n t\u1ea3i c\u01a1 b\u1ea3n nhu c\u1ea7u t\u1ed1i \u0111a t\u1ea1i ch\u00ednh PCC \u0111\u00f3. M\u1ed1i quan h\u1ec7 c\u1ee7a ch\u00fang, Isc\/IL, l\u1ef1a ch\u1ecdn lo\u1ea1i m\u00e9o d\u00f2ng \u0111i\u1ec7n \u00e1p d\u1ee5ng. Kh\u00f4ng h\u1ee3p l\u1ec7 khi k\u1ebft h\u1ee3p d\u1eef li\u1ec7u s\u1ef1 c\u1ed1 t\u1eeb ngu\u1ed3n ph\u00eda th\u01b0\u1ee3ng ngu\u1ed3n v\u1edbi d\u00f2ng \u0111i\u1ec7n nhu c\u1ea7u \u0111\u01b0\u1ee3c \u0111o t\u1ea1i m\u1ed9t t\u1ee7 \u0111i\u1ec7n ph\u00eda h\u1ea1 ngu\u1ed3n kh\u00f4ng li\u00ean quan.<\/p>\n<p>T\u00e0i li\u1ec7u gi\u00e1o d\u1ee5c c\u1ee7a TCI v\u00e0 IEEE gi\u1ea3i th\u00edch r\u1eb1ng c\u00e1c gi\u1edbi h\u1ea1n s\u00f3ng h\u00e0i d\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u1ef1a tr\u00ean m\u1ed1i quan h\u1ec7 v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 ngu\u1ed3n. Do \u0111\u00f3, m\u1ed9t ngu\u1ed3n y\u1ebfu v\u00e0 m\u1ed9t ngu\u1ed3n m\u1ea1nh c\u00f3 th\u1ec3 c\u00f3 c\u00e1c gi\u1edbi h\u1ea1n m\u00e9o d\u00f2ng \u0111i\u1ec7n cho ph\u00e9p kh\u00e1c nhau ngay c\u1ea3 khi m\u1ed9t nh\u00e0 m\u00e1y s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb phi tuy\u1ebfn t\u00ednh t\u01b0\u01a1ng t\u1ef1.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1ea7u v\u00e0o b\u1eaft bu\u1ed9c<\/th>\n<th>Ai th\u01b0\u1eddng cung c\u1ea5p n\u00f3<\/th>\n<th>\u0110i\u1ec3m \u0111\u00e1nh gi\u00e1<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>D\u00f2ng \u0111i\u1ec7n ng\u1eafn m\u1ea1ch kh\u1ea3 d\u1ee5ng, Isc<\/td>\n<td>Ti\u1ec7n \u00edch, nghi\u00ean c\u1ee9u h\u1ec7 th\u1ed1ng, k\u1ef9 s\u01b0 t\u01b0 v\u1ea5n<\/td>\n<td>Ph\u1ea3i t\u01b0\u01a1ng \u1ee9ng v\u1edbi PCC<\/td>\n<\/tr>\n<tr>\n<td>D\u00f2ng \u0111i\u1ec7n nhu c\u1ea7u c\u1ef1c \u0111\u1ea1i, IL<\/td>\n<td>D\u1eef li\u1ec7u doanh thu, nghi\u00ean c\u1ee9u ho\u1eb7c ghi nh\u1eadt k\u00fd \u0111\u1ea1i di\u1ec7n<\/td>\n<td>Ph\u01b0\u01a1ng th\u1ee9c ghi nh\u1eadn v\u00e0 th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea5p \u0111i\u1ec7n \u00e1p<\/td>\n<td>T\u00e0i li\u1ec7u m\u1ed9t d\u00f2ng v\u00e0 cung c\u1ea5p<\/td>\n<td>S\u1eed d\u1ee5ng \u0111i\u1ec7n \u00e1p PCC, kh\u00f4ng ph\u1ea3i \u0111i\u1ec7n \u00e1p ng\u00f5 ra c\u1ee7a b\u1ed9 bi\u1ebfn t\u1ea7n<\/td>\n<\/tr>\n<tr>\n<td>Ph\u1ed5 s\u00f3ng h\u00e0i<\/td>\n<td>Thi\u1ebft b\u1ecb ph\u00e2n t\u00edch ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n n\u0103ng<\/td>\n<td>Ghi nh\u1eadn c\u00e1c \u0111\u01a1n h\u00e0ng ri\u00eang l\u1ebb v\u00e0 tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng<\/td>\n<\/tr>\n<tr>\n<td>D\u1eef li\u1ec7u PFC\/b\u1ed9 l\u1ecdc hi\u1ec7n c\u00f3<\/td>\n<td>\u0110\u1ed9i ng\u0169 \u0111i\u1ec7n nh\u00e0 m\u00e1y<\/td>\n<td>Ki\u1ec3m tra hi\u1ec7n t\u01b0\u1ee3ng c\u1ed9ng h\u01b0\u1edfng n\u1ec1n ho\u1eb7c s\u1ef1 thay \u0111\u1ed5i tr\u1edf kh\u00e1ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Kh\u00f4ng \u0111\u01b0\u1ee3c \u0111o\u00e1n Isc\/IL ch\u1ec9 d\u1ef1a v\u00e0o nh\u00e3n m\u00e1y bi\u1ebfn \u00e1p. C\u00f3 th\u1ec3 c\u1ea7n \u0111\u1ebfn nghi\u00ean c\u1ee9u h\u1ec7 th\u1ed1ng ho\u1eb7c d\u1eef li\u1ec7u t\u1eeb ph\u00eda ngu\u1ed3n.<\/p>\n<h2>Ph\u1ea7n 5. B\u1ea3n ghi \u0111o l\u01b0\u1eddng n\u00e0o n\u00ean c\u00f3 tr\u01b0\u1edbc k\u00edch th\u01b0\u1edbc APF?<\/h2>\n<p>Ph\u1ea1m vi c\u1ee7a APF c\u1ea7n m\u1ed9t b\u1ea3n ghi \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh th\u1eddi gian, kh\u00f4ng ch\u1ec9 l\u00e0 \u1ea3nh ch\u1ee5p m\u00e0n h\u00ecnh THDi l\u1edbn nh\u1ea5t. H\u00e3y ghi l\u1ea1i \u0111i\u1ec7n \u00e1p, d\u00f2ng \u0111i\u1ec7n pha, c\u00e1c b\u1eadc s\u00f3ng h\u00e0i, kW, kVA, PF, tr\u1ea1ng th\u00e1i t\u1ea3i, vi\u1ec7c \u0111\u00f3ng c\u1eaft t\u1ee5 \u0111i\u1ec7n, v\u00e0 ch\u1ebf \u0111\u1ed9 v\u1eadn h\u00e0nh c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p ho\u1eb7c m\u00e1y ph\u00e1t \u0111i\u1ec7n c\u00f3 li\u00ean quan. B\u1ea3n ghi ph\u1ea3i bao g\u1ed3m kho\u1ea3ng th\u1eddi gian th\u1ec3 hi\u1ec7n t\u1ea3i phi tuy\u1ebfn ho\u1ea1t \u0111\u1ed9ng n\u1eb7ng.<\/p>\n<table>\n<thead>\n<tr>\n<th>Ghi l\u1ea1i m\u1ee5c<\/th>\n<th>L\u00fd do \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng tr\u01b0\u1edbc khi ch\u1ecdn k\u00edch c\u1ee1<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0110\u1ecbnh ngh\u0129a PCC v\u00e0 s\u01a1 \u0111\u1ed3 \u0111\u01a1n tuy\u1ebfn<\/td>\n<td>Gi\u1eef cho c\u00e1c v\u1ecb tr\u00ed ngu\u1ed3n, t\u1ea3i v\u00e0 ch\u1ec9 s\u1ed1 nh\u1ea5t qu\u00e1n<\/td>\n<\/tr>\n<tr>\n<td>Xu h\u01b0\u1edbng THD \u0111i\u1ec7n \u00e1p<\/td>\n<td>X\u00e1c \u0111\u1ecbnh xem hi\u1ec7n t\u01b0\u1ee3ng m\u00e9o \u0111i\u1ec7n \u00e1p c\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t ri\u00eang hay kh\u00f4ng<\/td>\n<\/tr>\n<tr>\n<td>ph\u1ed5 d\u00f2ng \u0111i\u1ec7n h\u00e0i<\/td>\n<td>Ti\u1ebft l\u1ed9 c\u00e1c b\u1eadc \u01b0u \u0111\u00e3i chi\u1ebfm \u01b0u th\u1ebf v\u00e0 c\u00e1c m\u1eabu t\u1ea3i thay \u0111\u1ed5i<\/td>\n<\/tr>\n<tr>\n<td>Ph\u01b0\u01a1ng ph\u00e1p IL v\u00e0 h\u1ed3 s\u01a1 nhu c\u1ea7u c\u1ef1c \u0111\u1ea1i<\/td>\n<td>Cho ph\u00e9p \u0111\u00e1nh gi\u00e1 TDD hi\u1ec7n t\u1ea1i<\/td>\n<\/tr>\n<tr>\n<td>Ngu\u1ed3n v\u00e0 ng\u00e0y c\u1ee7a Isc<\/td>\n<td>X\u00e1c \u0111\u1ecbnh lo\u1ea1i m\u1ee9c \u0111\u1ed9 ngu\u1ed3n<\/td>\n<\/tr>\n<tr>\n<td>C\u00e1c t\u1ee5 \u0111i\u1ec7n v\u00e0 b\u1ed9 ph\u1ea3n \u1ee9ng hi\u1ec7n c\u00f3<\/td>\n<td>\u0110\u00e1nh d\u1ea5u c\u00e1c h\u1ea1n ch\u1ebf c\u1ed9ng h\u01b0\u1edfng v\u00e0 n\u00e2ng c\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td>K\u1ebf ho\u1ea1ch m\u1edf r\u1ed9ng\/thay \u0111\u1ed5i t\u1ea3i<\/td>\n<td>Tr\u00e1nh ch\u1ec9 \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc cho m\u1ed9t \u0111i\u1ec3m v\u1eadn h\u00e0nh t\u1ea1m th\u1eddi<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng t\u1ea3i n\u1eb7ng, \u0111\u1ed1i t\u00e1c \u0111i k\u00e8m <a href=\"https:\/\/cnbygele.com\/vi\/blog\/vfd-harmonics-industrial-plants-apf-selection\/\">H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn h\u00e0i h\u00f2a VFD<\/a> gi\u1ea3i th\u00edch c\u00e1ch c\u00e1c ph\u00e9p \u0111o \u0111\u01b0\u1eddng d\u00e2y ph\u1ee5 tr\u1ee3 b\u1ed5 sung, thay v\u00ec thay th\u1ebf, d\u1eef li\u1ec7u PCC.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/advanced-static-var-generator-asvg-explained-cover.webp\" alt=\"Gi\u00e1m s\u00e1t b\u1ea3ng \u0111i\u1ec7n c\u00f4ng nghi\u1ec7p \u0111\u1ec3 \u0111o h\u00e0i h\u00f2a v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch PCC\" class=\"wp-image-2093\"><figcaption>C\u00e1c ghi nh\u1eadn \u0111o l\u01b0\u1eddng n\u00ean x\u00e1c \u0111\u1ecbnh \u0111i\u1ec3m \u0111i\u1ec7n, tr\u1ea1ng th\u00e1i t\u1ea3i v\u00e0 kho\u1ea3ng th\u1eddi gian sau m\u1ed7i gi\u00e1 tr\u1ecb.<\/figcaption><\/figure>\n<h2>Ph\u1ea7n 6. K\u1ebft qu\u1ea3 n\u00ean tr\u1edf th\u00e0nh ph\u1ea1m vi gi\u1ea3m thi\u1ec3u nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n<p>Chuy\u1ec3n \u0111\u1ed5i \u0111\u00e1nh gi\u00e1 ti\u00eau chu\u1ea9n th\u00e0nh m\u1ed9t tuy\u00ean b\u1ed1 v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt r\u00f5 r\u00e0ng. N\u1ebfu v\u1ea5n \u0111\u1ec1 l\u00e0 ch\u00e8n d\u00f2ng h\u00e0i t\u1ea1i bus \u0111\u00e3 xem x\u00e9t, c\u00f3 th\u1ec3 \u0111\u00e1nh gi\u00e1 b\u1ed9 l\u1ecdc h\u00e0i ho\u1ea1t \u0111\u1ed9ng. N\u1ebfu v\u1ea5n \u0111\u1ec1 l\u00e0 nhu c\u1ea7u ph\u1ea3n \u1ee9ng \u0111\u1ed9ng, \u0111\u00e1nh gi\u00e1 SVG ri\u00eang bi\u1ec7t. N\u1ebfu c\u00e1c t\u1ee5 \u0111i\u1ec7n hi\u1ec7n c\u00f3 t\u01b0\u01a1ng t\u00e1c v\u1edbi t\u1ea3i phi tuy\u1ebfn, c\u1ea7n xem x\u00e9t ri\u00eang v\u1ec1 c\u1ed9ng h\u01b0\u1edfng v\u00e0 \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1.<\/p>\n<table>\n<thead>\n<tr>\n<th>B\u1eb1ng ch\u1ee9ng t\u1eeb nghi\u00ean c\u1ee9u<\/th>\n<th>B\u01b0\u1edbc k\u1ef9 thu\u1eadt ti\u1ebfp theo<\/th>\n<th>\u0110\u1eebng m\u1eb7c \u0111\u1ecbnh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>M\u1ee5c ti\u00eau bi\u1ebfn d\u1ea1ng d\u00f2ng t\u1ea1i bus \u0111\u00e3 x\u00e1c \u0111\u1ecbnh<\/td>\n<td>\u0110\u00e1nh gi\u00e1 c\u1ea5u h\u00ecnh APF, c\u00f4ng su\u1ea5t, v\u00e0 v\u1ecb tr\u00ed CT<\/td>\n<td>Ch\u1ec9 ri\u00eang SVG c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf d\u00f2ng h\u00e0i<\/td>\n<\/tr>\n<tr>\n<td>Bi\u1ebfn \u0111\u1ed5i kvar nhanh v\u1edbi v\u1ea5n \u0111\u1ec1 d\u00f2ng h\u00e0i h\u1ea1n ch\u1ebf<\/td>\n<td>\u0110\u00e1nh gi\u00e1 ph\u01b0\u01a1ng ph\u00e1p SVG \/ h\u1ed7 tr\u1ee3 var<\/td>\n<td>C\u00e1c t\u1ee5 \u0111i\u1ec7n ph\u1ea3n \u1ee9ng ch\u00ednh x\u00e1c v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c \u0111\u1ed9ng l\u1ef1c<\/td>\n<\/tr>\n<tr>\n<td>B\u00e1o \u0111\u1ed9ng t\u1ee5 \u0111i\u1ec7n v\u00e0 ph\u00f3ng \u0111\u1ea1i h\u00e0i h\u00f2a<\/td>\n<td>Xem x\u00e9t \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1, tr\u1edf kh\u00e1ng v\u00e0 b\u1ea3o v\u1ec7<\/td>\n<td>Vi\u1ec7c thay th\u1ebf c\u1ea7u ch\u00ec gi\u1ea3i quy\u1ebft nguy\u00ean nh\u00e2n<\/td>\n<\/tr>\n<tr>\n<td>M\u1ee5c ti\u00eau PCC ch\u01b0a \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh<\/td>\n<td>L\u1ea5y d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o c\u1ee7a h\u1ec7 th\u1ed1ng\/nghi\u00ean c\u1ee9u ti\u1ec7n \u00edch<\/td>\n<td>S\u1ed1 THD c\u1ee7a drive-terminal ch\u1ee9ng minh s\u1ef1 tu\u00e2n th\u1ee7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>C\u00e1c trang c\u1ee7a CNBYG <a href=\"https:\/\/cnbygele.com\/vi\/power-quality-system\/\">H\u1ec7 th\u1ed1ng ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n n\u0103ng<\/a> v\u00e0 <a href=\"https:\/\/cnbygele.com\/vi\/product\/ahf-active-harmonic-filter-harmonic-control\/\">B\u1ed9 l\u1ecdc s\u00f3ng h\u00e0i t\u00edch c\u1ef1c AHF<\/a> cung c\u1ea5p b\u1ed1i c\u1ea3nh d\u00f2ng s\u1ea3n ph\u1ea9m. Ch\u00fang kh\u00f4ng \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 IEEE 519; vi\u1ec7c l\u1ef1a ch\u1ecdn cu\u1ed1i c\u00f9ng y\u00eau c\u1ea7u d\u1eef li\u1ec7u PCC c\u1ee7a d\u1ef1 \u00e1n, s\u01a1 \u0111\u1ed3 k\u1ebft n\u1ed1i v\u00e0 k\u1ebf ho\u1ea1ch v\u1eadn h\u00e0nh.<\/p>\n<h2>Ph\u1ea7n 7. M\u1ed9t y\u00eau c\u1ea7u b\u00e1o gi\u00e1 RFQ c\u00f3 ti\u00eau chu\u1ea9n c\u1ea7n bao g\u1ed3m nh\u1eefng g\u00ec, v\u00e0 khi n\u00e0o CNBYG kh\u00f4ng ph\u00f9 h\u1ee3p?<\/h2>\n<table>\n<thead>\n<tr>\n<th>Ng\u01b0\u1eddi mua ph\u1ea3i cung c\u1ea5p<\/th>\n<th>T\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 quan tr\u1ecdng<\/th>\n<th>L\u1ed7i ph\u1ed5 bi\u1ebfn<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>D\u00f2ng m\u1ed9t v\u1edbi PCC \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u<\/td>\n<td>Ph\u00f9 h\u1ee3p c\u00e1c ph\u00e9p \u0111o v\u00e0 y\u00eau c\u1ea7u<\/td>\n<td>G\u1ecdi m\u1ecdi b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n l\u00e0 PCC<\/td>\n<\/tr>\n<tr>\n<td>Th\u00f4ng tin l\u1ed7i ngu\u1ed3n\/ti\u1ec7n \u00edch<\/td>\n<td>Thi\u1ebft l\u1eadp \u0111\u1ea7u v\u00e0o Isc<\/td>\n<td>S\u1eed d\u1ee5ng \u01b0\u1edbc t\u00ednh kVA c\u1ee7a bi\u1ebfn \u00e1p l\u00e0m Isc<\/td>\n<\/tr>\n<tr>\n<td>Ph\u01b0\u01a1ng ph\u00e1p d\u00f2ng t\u1ea3i t\u1ed1i \u0111a<\/td>\n<td>Thi\u1ebft l\u1eadp IL cho TDD<\/td>\n<td>S\u1eed d\u1ee5ng d\u00f2ng t\u1ea3i nh\u1eb9<\/td>\n<\/tr>\n<tr>\n<td>Nh\u1eadt k\u00fd \u0111\u1ed3ng h\u1ed3 v\u00e0 ph\u1ed5<\/td>\n<td>Hi\u1ec3n th\u1ecb th\u1eddi gian v\u00e0 h\u00e0nh vi theo th\u1ee9 t\u1ef1 h\u00e0i h\u00f2a<\/td>\n<td>G\u1eedi m\u1ed9t \u1ea3nh ch\u1ee5p m\u00e0n h\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td>L\u1edbp \u0111i\u1ec7n \u00e1p v\u00e0 b\u1ed9 l\u1ecdc hi\u1ec7n c\u00f3<\/td>\n<td>X\u00e1c \u0111\u1ecbnh ng\u1eef c\u1ea3nh h\u1ec7 th\u1ed1ng<\/td>\n<td>B\u1ecf qua chi ti\u1ebft t\u1ee5 \u0111i\u1ec7n\/\u0111i\u1ec7n tr\u1edf ph\u1ea3n h\u1ed3i<\/td>\n<\/tr>\n<tr>\n<td>Ti\u00eau chu\u1ea9n m\u1ee5c ti\u00eau v\u00e0 y\u00eau c\u1ea7u c\u1ee7a ch\u1ee7 s\u1edf h\u1eefu<\/td>\n<td>\u0110\u1ecbnh ngh\u0129a ng\u00f4n ng\u1eef ch\u1ea5p nh\u1eadn<\/td>\n<td>Y\u00eau c\u1ea7u \u201ctu\u00e2n th\u1ee7 IEEE\u201d m\u00e0 kh\u00f4ng c\u00f3 ph\u1ea1m vi<\/td>\n<\/tr>\n<tr>\n<td>CT, b\u1ea3o v\u1ec7, h\u1ed9p v\u00e0 truy\u1ec1n th\u00f4ng<\/td>\n<td>L\u00e0m cho vi\u1ec7c xem x\u00e9t l\u1eafp \u0111\u1eb7t APF d\u1ec5 d\u00e0ng<\/td>\n<td>\u0110\u1ec3 vi\u1ec7c t\u00edch h\u1ee3p cho l\u1eafp \u0111\u1eb7t t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Kh\u1edbp \u0111\u01b0\u1eddng bi\u00ean<\/strong> H\u01b0\u1edbng d\u1eabn n\u00e0y d\u00e0nh cho c\u00e1c nh\u00f3m chu\u1ea9n b\u1ecb d\u1eef li\u1ec7u h\u00e0i h\u00f2a v\u00e0 ph\u1ea1m vi k\u1ef9 thu\u1eadt nh\u1eadn th\u1ee9c v\u1ec1 ti\u00eau chu\u1ea9n. N\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t di\u1ec5n gi\u1ea3i ph\u00e1p l\u00fd c\u1ee7a IEEE 519, th\u01b0 ch\u1ea5p nh\u1eadn c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5, xem x\u00e9t m\u00e3 l\u01b0\u1edbi \u0111i\u1ec7n, ho\u1eb7c \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ed9t APF s\u1ebd \u0111\u00e1p \u1ee9ng m\u1ee5c ti\u00eau d\u1ef1 \u00e1n. G\u1eedi g\u00f3i d\u1eef li\u1ec7u \u0111\u00e3 x\u00e1c \u0111\u1ecbnh qua <a href=\"https:\/\/cnbygele.com\/vi\/contact-us\/\">Trang li\u00ean h\u1ec7 CNBYG<\/a> cho cu\u1ed9c th\u1ea3o lu\u1eadn ph\u00f9 h\u1ee3p s\u1ea3n ph\u1ea9m.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/advanced-static-var-generator-asvg-explained-body.webp\" alt=\"T\u00edch h\u1ee3p thi\u1ebft b\u1ecb ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n \u0111\u1ec3 gi\u1ea3m thi\u1ec3u h\u00e0i h\u00f2a t\u1ea1i PCC\" class=\"wp-image-2094\"><figcaption>Y\u00eau c\u1ea7u b\u00e1o gi\u00e1 d\u1ef1a tr\u00ean ti\u00eau chu\u1ea9n k\u1ebft n\u1ed1i ch\u1ee9ng c\u1ee9 PCC v\u1edbi thi\u1ebft b\u1ecb, CT, b\u1ea3o v\u1ec7 v\u00e0 y\u00eau c\u1ea7u v\u1eadn h\u00e0nh th\u1eed.<\/figcaption><\/figure>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<p><strong>Gi\u1edbi h\u1ea1n h\u00e0i h\u00f2a IEEE 519 l\u00e0 g\u00ec?<\/strong><\/p>\n<p>Ch\u00fang l\u00e0 c\u00e1c m\u1ee5c ti\u00eau thi\u1ebft k\u1ebf ki\u1ec3m so\u00e1t h\u00e0i h\u00f2a \u1edf tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh cho bi\u1ebfn d\u1ea1ng \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n t\u1ea1i PCC ng\u01b0\u1eddi d\u00f9ng \u0111\u00e3 x\u00e1c \u0111\u1ecbnh.<\/p>\n<p><strong>PCC c\u1ee7a IEEE 519 n\u1eb1m \u1edf \u0111\u00e2u?<\/strong><\/p>\n<p>L\u00e0 giao di\u1ec7n ngu\u1ed3n\/t\u1ea3i \u0111\u00e3 x\u00e1c \u0111\u1ecbnh cho h\u1ec7 th\u1ed1ng, th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp d\u1ef1a tr\u00ean c\u1ea5u h\u00ecnh cung c\u1ea5p v\u00e0 quy\u1ec1n s\u1edf h\u1eefu.<\/p>\n<p><strong>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa THD v\u00e0 TDD l\u00e0 g\u00ec?<\/strong><\/p>\n<p>THD s\u1eed d\u1ee5ng gi\u00e1 tr\u1ecb c\u01a1 b\u1ea3n t\u1ea1i th\u1eddi \u0111i\u1ec3m \u0111o. TDD tham chi\u1ebfu d\u00f2ng t\u1ea3i t\u1ed1i \u0111a y\u00eau c\u1ea7u, IL.<\/p>\n<p><strong>TDD \u0111\u01b0\u1ee3c t\u00ednh nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/p>\n<p>TDD l\u00e0 d\u00f2ng h\u00e0i h\u00f2a bi\u1ec3u th\u1ecb d\u01b0\u1edbi d\u1ea1ng ph\u1ea7n tr\u0103m c\u1ee7a d\u00f2ng t\u1ea3i t\u1ed1i \u0111a y\u00eau c\u1ea7u t\u1ea1i PCC.<\/p>\n<p><strong>\u00dd ngh\u0129a c\u1ee7a Isc\/IL l\u00e0 g\u00ec?<\/strong><\/p>\n<p>So s\u00e1nh d\u00f2ng ng\u1eafn m\u1ea1ch kh\u1ea3 d\u1ee5ng v\u1edbi d\u00f2ng t\u1ea3i t\u1ed1i \u0111a y\u00eau c\u1ea7u t\u1ea1i PCC v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ecdn lo\u1ea1i ph\u00e2n lo\u1ea1i bi\u1ebfn d\u1ea1ng d\u00f2ng \u0111i\u1ec7n.<\/p>\n<p><strong>IEEE 519 c\u00f3 \u00e1p d\u1ee5ng cho \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng?<\/strong><\/p>\n<p>C\u00f3. N\u00f3 bao g\u1ed3m c\u00e1c m\u1ee5c ti\u00eau ki\u1ec3m so\u00e1t bi\u1ebfn d\u1ea1ng ri\u00eang bi\u1ec7t cho \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n t\u1ea1i PCC.<\/p>\n<p><strong>Th\u1eddi gian \u0111o h\u00e0i h\u00f2a n\u00ean \u0111\u01b0\u1ee3c ghi l\u1ea1i bao l\u00e2u?<\/strong><\/p>\n<p>\u0110\u1ee7 d\u00e0i \u0111\u1ec3 n\u1eafm b\u1eaft c\u00e1c \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh t\u1ea3i t\u1ed1i \u0111a v\u00e0 t\u1ea3i phi tuy\u1ebfn \u0111\u1ea1i di\u1ec7n; x\u00e1c \u0111\u1ecbnh kho\u1ea3ng th\u1eddi gian c\u00f9ng nh\u00f3m d\u1ef1 \u00e1n v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111o.<\/p>\n<p><strong>APF c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 kh\u00f4ng?<\/strong><\/p>\n<p>Kh\u00f4ng. M\u1ed9t APF \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 d\u1ef1a tr\u00ean h\u1ec7 th\u1ed1ng \u0111o \u0111\u01b0\u1ee3c, m\u1ee5c ti\u00eau d\u1ef1 \u00e1n, s\u01a1 \u0111\u1ed3 k\u1ebft n\u1ed1i, \u0111i\u1ec1u ki\u1ec7n ngu\u1ed3n v\u00e0 k\u1ebft qu\u1ea3 v\u1eadn h\u00e0nh th\u1eed.<\/p>\n<h2>T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<ul>\n<li><a href=\"https:\/\/standards.ieee.org\/ieee\/519\/10677\/\" rel=\"nofollow noopener\" target=\"_blank\">Ti\u00eau chu\u1ea9n IEEE 519-2022<\/a><\/li>\n<li><a href=\"https:\/\/library.e.abb.com\/public\/a7965e127ce44d089c1c2beace68aacd\/Tech_Note_158_IEEE_519-2022+Review.pdf\" rel=\"nofollow noopener\" target=\"_blank\">ABB: \u0110\u00e1nh gi\u00e1 IEEE 519-2022<\/a><\/li>\n<li><a href=\"https:\/\/www.mirusinternational.com\/downloads\/Mirus-White-Paper-Understanding-Relationship-between-THD-vs-TDD-20220330.pdf\" rel=\"nofollow noopener\" target=\"_blank\">Mirus: Hi\u1ec3u r\u00f5 M\u1ed1i quan h\u1ec7 gi\u1eefa THD v\u00e0 TDD<\/a><\/li>\n<li><a href=\"https:\/\/www.transcoil.com\/applications\/ieee-519-2014\/\" rel=\"nofollow noopener\" target=\"_blank\">TCI: H\u01b0\u1edbng d\u1eabn ki\u1ec3m so\u00e1t h\u00e0i h\u00f2a IEEE 519-2022<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>IEEE 519 harmonic limits are a PCC-based design and verification framework for steady-state voltage and current distortion. Before an active power filter is sized, an engineer should define the user point of common coupling, identify whether voltage or current distortion is the decision issue, collect maximum-demand and short-circuit data, and obtain a representative harmonic record. [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2559","post","type-post","status-publish","format-standard","hentry","category-blog"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"acf":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/posts\/2559","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/comments?post=2559"}],"version-history":[{"count":1,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/posts\/2559\/revisions"}],"predecessor-version":[{"id":2612,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/posts\/2559\/revisions\/2612"}],"wp:attachment":[{"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/media?parent=2559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/categories?post=2559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/tags?post=2559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}