{"id":2558,"date":"2026-07-16T09:00:00","date_gmt":"2026-07-16T01:00:00","guid":{"rendered":"https:\/\/cnbygele.com\/?p=2558"},"modified":"2026-08-24T18:10:12","modified_gmt":"2026-08-24T10:10:12","slug":"vfd-harmonics-industrial-plants-apf-selection","status":"publish","type":"post","link":"https:\/\/cnbygele.com\/vi\/blog\/vfd-harmonics-industrial-plants-apf-selection\/","title":{"rendered":"S\u00f3ng h\u00e0i VFD trong nh\u00e0 m\u00e1y c\u00f4ng nghi\u1ec7p: C\u00e1ch \u0111o l\u01b0\u1eddng v\u00e0 l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3m thi\u1ec3u"},"content":{"rendered":"<hr \/>\n<p><strong>S\u00f3ng h\u00e0i VFD trong c\u00e1c nh\u00e0 m\u00e1y c\u00f4ng nghi\u1ec7p<\/strong> c\u1ea7n \u0111\u01b0\u1ee3c \u0111i\u1ec1u tra nh\u01b0 m\u1ed9t v\u1ea5n \u0111\u1ec1 c\u1ee7a h\u1ec7 th\u1ed1ng, thay v\u00ec quy k\u1ebft cho m\u1ed9t nh\u00e3n th\u00f4ng s\u1ed1 c\u1ee7a bi\u1ebfn t\u1ea7n \u0111\u01a1n l\u1ebb. C\u00e1c b\u1ed9 ch\u1ec9nh l\u01b0u \u0111\u1ea7u v\u00e0o c\u1ee7a bi\u1ebfn t\u1ea7n l\u00e0 c\u00e1c t\u1ea3i phi tuy\u1ebfn t\u00ednh; ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0a d\u00f2ng \u0111i\u1ec7n s\u00f3ng h\u00e0i v\u00e0o \u0111\u01b0\u1eddng d\u00e2y c\u1ea5p ngu\u1ed3n v\u00e0 thanh c\u00e1i. \u0110i\u1ec3m kh\u1edfi \u0111\u1ea7u th\u1ef1c t\u1ebf l\u00e0 \u0111o \u0111\u1ea1c t\u1ea1i c\u1ea3 \u0111i\u1ec3m ph\u00e2n ph\u1ed1i b\u1ecb \u1ea3nh h\u01b0\u1edfng v\u00e0 \u0111i\u1ec3m \u0111\u1ea5u n\u1ed1i chung (PCC), sau \u0111\u00f3 l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p gi\u1ea3m thi\u1ec3u ph\u00f9 h\u1ee3p v\u1edbi m\u1ee5c ti\u00eau \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c.<\/p>\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y t\u00e1ch bi\u1ec7t vi\u1ec7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 \u0111\u1ea7u cu\u1ed1i bi\u1ebfn t\u1ea7n, l\u1eadp k\u1ebf ho\u1ea1ch PCC, r\u1ee7i ro c\u1ed9ng h\u01b0\u1edfng t\u1ee5 \u0111i\u1ec7n v\u00e0 l\u1ef1a ch\u1ecdn b\u1ed9 l\u1ecdc s\u00f3ng h\u00e0i ch\u1ee7 \u0111\u1ed9ng (AHF\/APF). T\u00e0i li\u1ec7u n\u00e0y d\u00e0nh cho c\u00e1c k\u1ef9 s\u01b0 \u0111i\u1ec7n nh\u00e0 m\u00e1y, nh\u00e0 ch\u1ebf t\u1ea1o t\u1ee7 \u0111i\u1ec7n v\u00e0 c\u00e1c \u0111\u1ed9i ng\u0169 EPC \u0111ang chu\u1ea9n b\u1ecb cho m\u1ed9t \u0111\u00e1nh gi\u00e1 k\u1ef9 thu\u1eadt.<\/p>\n<h2>M\u1ee5c l\u1ee5c<\/h2>\n<ul>\n<li>Ph\u1ea7n 1: c\u00e1c ngu\u1ed3n s\u00f3ng h\u00e0i \u0111\u1ea7u v\u00e0o truy\u1ec1n \u0111\u1ed9ng<\/li>\n<li>Ph\u1ea7n 2: v\u1ecb tr\u00ed \u0111o l\u01b0\u1eddng v\u00e0 h\u1ed3 s\u01a1<\/li>\n<li>Ph\u1ea7n 3: so s\u00e1nh c\u00e1c l\u1ed9 tr\u00ecnh gi\u1ea3m nh\u1eb9<\/li>\n<li>Ph\u1ea7n 4: ranh gi\u1edbi c\u1ed9ng h\u01b0\u1edfng c\u1ee7a ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n<\/li>\n<li>Ph\u1ea7n 5: C\u00e1c th\u00f4ng tin \u0111\u1ea7u v\u00e0o v\u1ec1 dung l\u01b0\u1ee3ng v\u00e0 v\u1ecb tr\u00ed c\u1ee7a APF<\/li>\n<li>Ph\u1ea7n 6: t\u00edch h\u1ee3p v\u00e0 v\u1eadn h\u00e0nh th\u1eed<\/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=\"312\" height=\"151\" src=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/221b1ab6-94a7-4fdb-a0b6-ebbc81138b5d.webp\" alt=\"T\u1ee7 ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n c\u00f4ng nghi\u1ec7p d\u00f9ng \u0111\u1ec3 l\u1eadp k\u1ebf ho\u1ea1ch gi\u1ea3m s\u00f3ng h\u00e0i cho bi\u1ebfn t\u1ea7n\" class=\"wp-image-2086\" srcset=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/221b1ab6-94a7-4fdb-a0b6-ebbc81138b5d.webp 312w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/221b1ab6-94a7-4fdb-a0b6-ebbc81138b5d-300x145.webp 300w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/221b1ab6-94a7-4fdb-a0b6-ebbc81138b5d-18x9.webp 18w\" sizes=\"auto, (max-width: 312px) 100vw, 312px\" \/><figcaption>C\u00e1c b\u1ea3ng \u0111i\u1ec7n c\u00f3 nhi\u1ec1u truy\u1ec1n \u0111\u1ed9ng c\u1ea7n c\u00f3 m\u1ed9t k\u1ebf ho\u1ea1ch s\u00f3ng h\u00e0i d\u1ef1a tr\u00ean \u0111o l\u01b0\u1eddng tr\u01b0\u1edbc khi thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh.<\/figcaption><\/figure>\n<h2>Ph\u1ea7n 1. T\u1ea1i sao c\u00e1c bi\u1ebfn t\u1ea7n (VFD) l\u00e0m thay \u0111\u1ed5i \u0111\u1eb7c t\u00ednh s\u00f3ng h\u00e0i c\u1ee7a m\u1ed9t nh\u00e0 m\u00e1y c\u00f4ng nghi\u1ec7p?<\/h2>\n<p>Bi\u1ebfn t\u1ea7n \u0111i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 b\u1eb1ng c\u00e1ch ch\u1ec9nh l\u01b0u ngu\u1ed3n \u0111i\u1ec7n AC \u0111\u1ea7u v\u00e0o, t\u1ea1o ra m\u1ed9t bu\u00fdt DC v\u00e0 t\u1ed5ng h\u1ee3p ng\u00f5 ra c\u00f3 t\u1ea7n s\u1ed1 bi\u1ebfn \u0111\u1ed5i. B\u1ed9 ch\u1ec9nh l\u01b0u \u0111\u1ea7u v\u00e0o c\u00f3 t\u00ednh phi tuy\u1ebfn, do \u0111\u00f3 d\u1ea1ng s\u00f3ng d\u00f2ng \u0111i\u1ec7n c\u1ee7a n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t s\u00f3ng h\u00ecnh sin \u0111\u01a1n gi\u1ea3n. M\u1ed9t nh\u00e0 m\u00e1y c\u00f3 m\u1ed9t v\u00e0i bi\u1ebfn t\u1ea7n t\u1ea3i nh\u1eb9 c\u00f3 th\u1ec3 th\u1ea5y k\u1ebft qu\u1ea3 kh\u00e1c bi\u1ec7t so v\u1edbi m\u1ed9t nh\u00e0 m\u00e1y c\u00f3 nhi\u1ec1u bi\u1ebfn t\u1ea7n c\u00f9ng v\u1eadn h\u00e0nh c\u00e1c b\u01a1m, qu\u1ea1t, m\u00e1y n\u00e9n, b\u0103ng t\u1ea3i ho\u1eb7c \u0111\u1ed9ng c\u01a1 quy tr\u00ecnh.<\/p>\n<p>C\u00e2u h\u1ecfi th\u00edch h\u1ee3p kh\u00f4ng ph\u1ea3i l\u00e0 \u201cbi\u1ebfn t\u1ea7n c\u00f3 t\u1ea1o ra s\u00f3ng h\u00e0i kh\u00f4ng?\u201d m\u00e0 l\u00e0 \u201cd\u00f2ng \u0111i\u1ec7n s\u00f3ng h\u00e0i \u0111\u01b0\u1ee3c \u0111o l\u01b0\u1eddng t\u1ea1o ra v\u1ea5n \u0111\u1ec1 v\u1ec1 thi\u1ebft b\u1ecb ho\u1eb7c quy ho\u1ea1ch \u1edf \u0111\u00e2u?\u201d Plant Engineering x\u00e1c \u0111\u1ecbnh cu\u1ed9n kh\u00e1ng, s\u01a1 \u0111\u1ed3 \u0111a xung, bi\u1ebfn t\u1ea7n t\u1ea7ng \u0111\u1ea7u t\u00edch c\u1ef1c, b\u1ed9 l\u1ecdc th\u1ee5 \u0111\u1ed9ng v\u00e0 b\u1ed9 l\u1ecdc t\u00edch c\u1ef1c l\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p gi\u1ea3m thi\u1ec3u ri\u00eang bi\u1ec7t. S\u1ef1 ph\u00f9 h\u1ee3p c\u1ee7a ch\u00fang ph\u1ee5 thu\u1ed9c v\u00e0o h\u00e0nh vi c\u1ee7a t\u1ea3i, \u0111\u1ed9 m\u1ea1nh c\u1ee7a ngu\u1ed3n, di\u1ec7n t\u00edch chi\u1ebfm ch\u1ed7, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 \u0111i\u1ec3m \u0111o l\u01b0\u1eddng c\u1ea7n thi\u1ebft.<\/p>\n<table>\n<thead>\n<tr>\n<th>Tri\u1ec7u ch\u1ee9ng c\u1ee7a c\u00e2y<\/th>\n<th>Nguy\u00ean nh\u00e2n ti\u1ec1m \u1ea9n li\u00ean quan \u0111\u1ebfn VFD<\/th>\n<th>Ki\u1ec3m tra \u0111\u1ea7u ti\u00ean<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>H\u1ec7 th\u1ed1ng s\u01b0\u1edfi bi\u1ebfn \u00e1p ho\u1eb7c thanh d\u1eabn \u0111i\u1ec7n<\/td>\n<td>D\u00f2ng \u0111i\u1ec7n b\u1eadc h\u00e0i l\u00e0m t\u0103ng nhi\u1ec7t l\u01b0\u1ee3ng RMS<\/td>\n<td>Ph\u00e2n t\u00edch xu h\u01b0\u1edbng ph\u1ed5 nhi\u1ec7t v\u00e0 nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi t\u1ea3i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng<\/td>\n<\/tr>\n<tr>\n<td>H\u00e0nh \u0111\u1ed9ng ng\u1eaft c\u1ea7u dao ho\u1eb7c r\u01a1-le gi\u1ea3 t\u1ea1o<\/td>\n<td>D\u00f2ng \u0111i\u1ec7n b\u1ecb m\u00e9o d\u1ea1ng ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n c\u1ed9ng h\u01b0\u1edfng<\/td>\n<td>Ki\u1ec3m tra d\u1ea1ng s\u00f3ng, b\u1ea3n ghi b\u1ea3o v\u1ec7 v\u00e0 tr\u1ea1ng th\u00e1i t\u1ee5 \u0111i\u1ec7n<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 m\u00e9o s\u00f3ng h\u00e0i d\u00f2ng \u0111i\u1ec7n cao \u1edf m\u1ed9t nh\u00e1nh c\u1ea5p ngu\u1ed3n bi\u1ebfn t\u1ea7n<\/td>\n<td>D\u00f2ng \u0111i\u1ec7n h\u00e0i ch\u1ec9nh l\u01b0u<\/td>\n<td>So s\u00e1nh k\u1ebft qu\u1ea3 tuy\u1ebfn c\u1ea5p v\u1edbi ph\u00e9p \u0111o t\u1ea1i PCC<\/td>\n<\/tr>\n<tr>\n<td>H\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t th\u1ef1c k\u00e9m<\/td>\n<td>Hi\u1ec7u \u1ee9ng d\u00f2ng \u0111i\u1ec7n h\u00e0i v\u00e0 d\u1ecbch chuy\u1ec3n<\/td>\n<td>Ghi l\u1ea1i kW, kVA, PF v\u00e0 ph\u1ed5 c\u00f9ng nhau<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea7u ch\u00ec t\u1ee5 \u0111i\u1ec7n \u0111ang ho\u1ea1t \u0111\u1ed9ng<\/td>\n<td>Khu\u1ebfch \u0111\u1ea1i \u0111i\u1ec1u h\u00f2a g\u1ea7n c\u1ed9ng h\u01b0\u1edfng<\/td>\n<td>T\u1ea1m d\u1eebng m\u1edf r\u1ed9ng t\u1ee5 \u0111i\u1ec7n v\u00e0 xem x\u00e9t l\u1ea1i vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ec3 bi\u1ebft ng\u1eef c\u1ea3nh chung v\u1ec1 s\u1ea3n ph\u1ea9m, h\u00e3y xem 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> trang. N\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 thay th\u1ebf cho m\u1ed9t nghi\u00ean c\u1ee9u th\u1ef1c v\u1eadt.<\/p>\n<h2>Ph\u1ea7n 2. N\u00ean \u0111o s\u00f3ng h\u00e0i VFD \u1edf \u0111\u00e2u v\u00e0 b\u1eb1ng c\u00e1ch n\u00e0o?<\/h2>\n<p>Ti\u00eau chu\u1ea9n IEEE 519 thi\u1ebft l\u1eadp c\u00e1c m\u1ee5c ti\u00eau thi\u1ebft k\u1ebf ki\u1ec3m so\u00e1t s\u00f3ng h\u00e0i \u1edf ch\u1ebf \u0111\u1ed9 thi\u1ebft l\u1eadp t\u1ea1i PCC. PCC l\u00e0 m\u1ed9t giao di\u1ec7n \u0111i\u1ec7n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh, kh\u00f4ng m\u1eb7c \u0111\u1ecbnh l\u00e0 m\u1ecdi \u0111\u1ea7u v\u00e0o c\u1ee7a b\u1ed9 truy\u1ec1n \u0111\u1ed9ng. Ph\u00e9p \u0111o nh\u00e1nh c\u1ea5p ngu\u1ed3n v\u1eabn quan tr\u1ecdng v\u00ec n\u00f3 t\u00ecm ra ngu\u1ed3n v\u00e0 h\u1ed7 tr\u1ee3 gi\u1ea3m thi\u1ec3u t\u1ea1i ch\u1ed7, nh\u01b0ng b\u1ea3n th\u00e2n n\u00f3 kh\u00f4ng ch\u1ee9ng minh \u0111\u01b0\u1ee3c t\u00ecnh tr\u1ea1ng h\u01b0\u1edbng v\u1ec1 ph\u00eda \u0111\u01a1n v\u1ecb \u0111i\u1ec7n l\u1ef1c.<\/p>\n<p>Ghi l\u1ea1i m\u1ed9t kho\u1ea3ng th\u1eddi gian s\u1ea3n xu\u1ea5t \u0111\u1ea1i di\u1ec7n. Bao g\u1ed3m th\u00f4ng\u1036 l\u01b0\u1ee3ng b\u00ecnh th\u01b0\u1eddng, ch\u1ebf \u0111\u1ed9 l\u00e0m vi\u1ec7c c\u1ee7a \u0111\u1ed9ng c\u01a1 cao nh\u1ea5t d\u1ef1 ki\u1ebfn, s\u1ef1 thay \u0111\u1ed5i v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng b\u1ed9 truy\u1ec1n \u0111\u1ed9ng, v\u00e0 c\u00e1c s\u1ef1 ki\u1ec7n \u0111\u00f3ng c\u1eaft cho b\u1ea5t k\u1ef3 t\u1ee5 b\u00f9 n\u00e0o hi\u1ec7n c\u00f3. M\u1ed9t ph\u00e9p \u0111o ng\u1eafn trong t\u1ea3i nh\u1eb9 c\u00f3 th\u1ec3 l\u00e0m ph\u00f3ng \u0111\u1ea1i THD d\u00f2ng \u0111i\u1ec7n v\u00e0 che gi\u1ea5u m\u1ee9c d\u00f2ng \u0111i\u1ec7n quan tr\u1ecdng \u0111\u1ed1i v\u1edbi quy\u1ebft \u0111\u1ecbnh l\u1ef1a ch\u1ecdn.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0110i\u1ec3m \u0111o<\/th>\n<th>C\u00e2u h\u1ecfi m\u00e0 n\u00f3 tr\u1ea3 l\u1eddi<\/th>\n<th>D\u1eef li\u1ec7u c\u1ea7n ghi<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>T\u1ee7 c\u1ea5p ngu\u1ed3n VFD<\/td>\n<td>Nh\u00f3m \u1ed5 \u0111\u0129a n\u00e0o t\u1ea1o ra ph\u1ed5 d\u00f2ng \u0111i\u1ec7n?<\/td>\n<td>D\u00f2ng \u0111i\u1ec7n pha, c\u00e1c \u0111\u01a1n h\u00e0ng ri\u00eang l\u1ebb, tr\u1ea1ng th\u00e1i t\u1ea3i<\/td>\n<\/tr>\n<tr>\n<td>T\u1ee7 MCC ho\u1eb7c t\u1ee7 ph\u00e2n ph\u1ed1i<\/td>\n<td>Nhi\u1ec1u nh\u00f3m \u1ed5 \u0111\u0129a c\u00f3 \u0111ang g\u1ed9p l\u1ea1i kh\u00f4ng?<\/td>\n<td>THDi, kW, kVA, PF, m\u1ea5t c\u00e2n b\u1eb1ng pha, \u0111\u00f3ng c\u1eaft t\u1ee5 b\u00f9<\/td>\n<\/tr>\n<tr>\n<td>Cu\u1ed9n th\u1ee9 c\u1ea5p m\u00e1y bi\u1ebfn \u00e1p<\/td>\n<td>S\u1ef1 m\u00e9o d\u1ea1ng c\u00f3 \u0111ang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn thanh c\u00e1i c\u1ee7a nh\u00e0 m\u00e1y kh\u00f4ng?<\/td>\n<td>\u0110\u1ed9 m\u00e9o s\u00f3ng h\u00e0i t\u1ed5ng \u0111i\u1ec7n \u00e1p, ph\u1ed5 d\u00f2ng \u0111i\u1ec7n, b\u1ed1i c\u1ea3nh nhi\u1ec7t \u0111\u1ed9<\/td>\n<\/tr>\n<tr>\n<td>X\u00e1c \u0111\u1ecbnh PCC<\/td>\n<td>M\u1ee5c ti\u00eau l\u1eadp k\u1ebf ho\u1ea1ch n\u00e0o \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng t\u1ea1i giao di\u1ec7n ngu\u1ed3n\/t\u1ea3i?<\/td>\n<td>\u0110\u1ea7u v\u00e0o m\u00e9o \u0111i\u1ec7n \u00e1p, nhu c\u1ea7u d\u00f2ng \u0111i\u1ec7n, Isc\/IL<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote>\n<p><strong>Quan tr\u1ecdng:<\/strong> M\u1ed9t \u0111\u1ea7u n\u1ed1i truy\u1ec1n \u0111\u1ed9ng tr\u00f4ng s\u1ea1ch s\u1ebd kh\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t PCC, v\u00e0 ch\u1ec9 s\u1ed1 THDi t\u1ea3i nh\u1eb9 cao b\u1ea3n th\u00e2n n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 gi\u00e1 tr\u1ecb c\u00f4ng su\u1ea5t APF. IEEE 519 m\u00f4 t\u1ea3 c\u00e1c m\u1ee5c ti\u00eau m\u00e9o d\u1ea1ng t\u1ea1i PCC v\u00e0 trong \u0111i\u1ec1u ki\u1ec7n \u1ed5n \u0111\u1ecbnh (<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. Nh\u1eefng k\u1ebft qu\u1ea3 n\u00e0o \u0111\u00f2i h\u1ecfi ph\u1ea3i d\u00f9ng cu\u1ed9n kh\u00e1ng, AFE, b\u1ed9 l\u1ecdc th\u1ee5 \u0111\u1ed9ng ho\u1eb7c APF?<\/h2>\n<p>Gi\u1ea3m thi\u1ec3u l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn k\u1ef9 thu\u1eadt, kh\u00f4ng ph\u1ea3i l\u00e0 th\u1ee9 b\u1eadc s\u1ea3n ph\u1ea9m. Cu\u1ed9n kh\u00e1ng \u0111\u01b0\u1eddng d\u00e2y c\u00f3 th\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi m\u1ed9t bi\u1ebfn t\u1ea7n ri\u00eang l\u1ebb khi m\u1ee5c ti\u00eau c\u1ee5c b\u1ed9 l\u00e0 \u0111i\u1ec1u h\u00f2a d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u\u0e40\u0e02\u0e49\u0e32. C\u1ea5u h\u00ecnh \u0111a xung ho\u1eb7c t\u1ea7ng \u0111\u1ea7u tr\u01b0\u1edbc t\u00edch c\u1ef1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t cho m\u1ed9t d\u1ef1 \u00e1n bi\u1ebfn t\u1ea7n m\u1edbi. B\u1ed9 l\u1ecdc th\u1ee5 \u0111\u1ed9ng c\u00f3 th\u1ec3 hi\u1ec7u qu\u1ea3 \u0111\u1ed1i v\u1edbi m\u1ed9t d\u1ea3i t\u1ea7n x\u00e1c \u0111\u1ecbnh, trong khi b\u1ed9 l\u1ecdc t\u00edch c\u1ef1c APF \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 khi d\u00f2ng s\u00f3ng h\u00e0i bi\u1ebfn \u0111\u1ed5i c\u1ea7n \u0111\u01b0\u1ee3c b\u00f9 t\u00edch c\u1ef1c.<\/p>\n<table>\n<thead>\n<tr>\n<th>T\u00ecnh hu\u1ed1ng \u0111\u00e3 \u0111o l\u01b0\u1eddng<\/th>\n<th>\u0110\u01b0\u1eddng d\u1eabn \u1ee9ng vi\u00ean<\/th>\n<th>\u0110\u01b0\u1eddng bi\u00ean v\u00f9ng ch\u1ecdn<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>M\u1ed9t ho\u1eb7c m\u1ed9t v\u00e0i \u1ed5 \u0111\u0129a c\u00f3 v\u1ea5n \u0111\u1ec1 v\u1ec1 \u0111\u1ea7u v\u00e0o c\u1ee5c b\u1ed9<\/td>\n<td>Cu\u1ed9n kh\u00e1ng \u0111\u01b0\u1eddng d\u00e2y ho\u1eb7c cu\u1ed9n kh\u00e1ng DC<\/td>\n<td>X\u00e1c minh h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u1ed5 \u0111\u0129a v\u00e0 t\u00ecnh tr\u1ea1ng b\u1ed9 c\u1ea5p li\u1ec7u<\/td>\n<\/tr>\n<tr>\n<td>C\u00e0i \u0111\u1eb7t m\u1edbi v\u1edbi c\u1ea5u tr\u00fac \u1ed5 \u0111\u0129a \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh<\/td>\n<td>Bi\u1ebfn t\u1ea7n \u0111a xung ho\u1eb7c AFE<\/td>\n<td>So s\u00e1nh chi ph\u00ed, di\u1ec7n t\u00edch l\u1eafp \u0111\u1eb7t, qu\u00e1 tr\u00ecnh t\u00e1i sinh v\u00e0 m\u1ee5c ti\u00eau c\u1ee7a nh\u00e0 m\u00e1y<\/td>\n<\/tr>\n<tr>\n<td>D\u1ea3i t\u1ea7n h\u00e0i \u1ed5n \u0111\u1ecbnh, \u0111\u00e3 bi\u1ebft<\/td>\n<td>B\u1ed9 l\u1ecdc th\u1ee5 \u0111\u1ed9ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf<\/td>\n<td>Ki\u1ec3m tra \u0111\u1ed9 tinh ch\u1ec9nh, c\u00e1c thay \u0111\u1ed5i v\u1ec1 ngu\u1ed3n v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng c\u1ed9ng h\u01b0\u1edfng<\/td>\n<\/tr>\n<tr>\n<td>T\u1ea3i thay \u0111\u1ed5i v\u00e0 d\u00f2ng \u0111i\u1ec7n h\u00e0i t\u1ea1i m\u1ed9t thanh c\u00e1i \u0111\u01b0\u1ee3c xem x\u00e9t<\/td>\n<td><a href=\"https:\/\/cnbygele.com\/vi\/product\/ahf-active-harmonic-filter-harmonic-control\/\">AHF \/ APF<\/a><\/td>\n<td>X\u00e1c nh\u1eadn s\u01a1 \u0111\u1ed3 \u0442\u043e\u043f\u043e\u043b\u043e\u0433\u0438\u044e, dung l\u01b0\u1ee3ng, s\u01a1 \u0111\u1ed3 CT v\u00e0 m\u1ee5c ti\u00eau<\/td>\n<\/tr>\n<tr>\n<td>Dao \u0111\u1ed9ng kVAr nhanh m\u00e0 kh\u00f4ng c\u00f3 d\u00f2ng s\u00f3ng h\u00e0i v\u1eadt li\u1ec7u<\/td>\n<td>SVG ho\u1eb7c gi\u1ea3i ph\u00e1p bi\u1ebfn \u0111\u1ed5i kh\u00e1c<\/td>\n<td>Kh\u00f4ng thay th\u1ebf n\u00f3 cho vi\u1ec7c gi\u1ea3m thi\u1ec3u d\u00f2ng \u0111i\u1ec7n h\u00e0i<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ec3 c\u00f3 quy tr\u00ecnh thi\u1ebft b\u1ecb t\u1ed5ng th\u1ec3 h\u01a1n, h\u00e3y \u0111\u1ecdc <a href=\"https:\/\/cnbygele.com\/vi\/blog\/active-harmonic-filter-ahf-selection-guide\/\">h\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn b\u1ed9 l\u1ecdc s\u00f3ng h\u00e0i ch\u1ee7 \u0111\u1ed9ng<\/a>. Khung c\u1ee7a n\u00f3 n\u00ean \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho d\u1eef li\u1ec7u hi\u1ec7n tr\u01b0\u1eddng \u0111\u00e3 \u0111o \u0111\u1ea1c, ch\u1ee9 kh\u00f4ng ph\u1ea3i sao ch\u00e9p v\u00e0o m\u1ed9t y\u00eau c\u1ea7u b\u00e1o gi\u00e1 (RFQ) m\u00e0 kh\u00f4ng c\u00f3 c\u00e1c b\u1ea3n ghi d\u1ea1ng s\u00f3ng v\u00e0 nhu c\u1ea7u ph\u00f9 h\u1ee3p.<\/p>\n<h2>Ph\u1ea7n 4. T\u1ea1i sao c\u00e1c d\u00e3y t\u1ee5 \u0111i\u1ec7n c\u1ea7n ph\u1ea3i ki\u1ec3m tra c\u1ed9ng h\u01b0\u1edfng ri\u00eang bi\u1ec7t?<\/h2>\n<p>T\u1ee5 \u0111i\u1ec7n kh\u00f4ng t\u1ea1o ra s\u00f3ng h\u00e0i, nh\u01b0ng m\u1ed9t d\u00e3y t\u1ee5 \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n c\u1ea3m ng\u01b0\u1ee3c ngu\u1ed3n c\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec1u ki\u1ec7n c\u1ed9ng h\u01b0\u1edfng song song l\u00e0m khu\u1ebfch \u0111\u1ea1i d\u00f2ng \u0111i\u1ec7n s\u00f3ng h\u00e0i. T\u00e0i li\u1ec7u \u1ee9ng d\u1ee5ng bi\u1ebfn t\u1ea7n c\u1ee7a Eaton c\u1ea3nh b\u00e1o c\u1ee5 th\u1ec3 r\u1eb1ng c\u00e1c d\u00e3y t\u1ee5 \u0111i\u1ec7n trong h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i c\u00f3 \u1ed5 \u0111\u0129a \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1 s\u00e1u xung c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn d\u00f2ng \u0111i\u1ec7n c\u1ed9ng h\u01b0\u1edfng kh\u00f4ng mong mu\u1ed1n, s\u1ef1 c\u1ed1 c\u1ea7u ch\u00ec t\u1ee5 \u0111i\u1ec7n v\u00e0 m\u00e9o \u0111i\u1ec7n \u00e1p thanh c\u00e1i cao h\u01a1n.<\/p>\n<blockquote>\n<p><strong>T\u1eeb l\u0129nh v\u1ef1c:<\/strong> \u201cKhi m\u1ed9t s\u1ed1 \u0111\u1ed9ng c\u01a1 kh\u00f4ng c\u00f3 bi\u1ebfn t\u1ea7n v\u00e0 m\u1ed9t s\u1ed1 \u0111\u1ed9ng c\u01a1 c\u00f3 bi\u1ebfn t\u1ea7n, li\u1ec7u ch\u00fang ta v\u1eabn c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u1ee5 \u0111i\u1ec7n hay kh\u00f4ng\u201d l\u00e0 m\u1ed9t c\u00e2u h\u1ecfi k\u1ef9 thu\u1eadt th\u01b0\u1eddng g\u1eb7p<a href=\"https:\/\/www.eng-tips.com\/threads\/power-factor-correction-and-harmonic-resonance.488700\/\" rel=\"nofollow noopener\" target=\"_blank\">Th\u1ea3o lu\u1eadn tr\u00ean Eng-Tips<\/a>). \u0110\u00f3 l\u00e0 m\u1ed9t l\u00fd do h\u1ee3p ph\u00e1p \u0111\u1ec3 l\u1ea5y th\u00f4ng tin ph\u1ed5 v\u00e0 t\u1ee5 b\u00f9 tr\u01b0\u1edbc khi b\u1ed5 sung kvar; \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1eb1ng ch\u1ee9ng k\u1ef9 thu\u1eadt cho m\u1ed9t nh\u00e0 m\u00e1y c\u1ee5 th\u1ec3.<\/p>\n<\/blockquote>\n<p>S\u1eed d\u1ee5ng <a href=\"https:\/\/cnbygele.com\/vi\/blog\/preventing-capacitor-harmonic-resonance-in-industrial-systems\/\">h\u01b0\u1edbng d\u1eabn c\u1ed9ng h\u01b0\u1edfng s\u00f3ng h\u00e0i t\u1ee5 \u0111i\u1ec7n<\/a> Khi \u0111\u00e1nh gi\u00e1 thi\u1ebft b\u1ecb b\u00f9 c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng (PFC) hi\u1ec7n c\u00f3, t\u1ee5 b\u00f9 kh\u00e1ng cu\u1ed9n kh\u00e1ng (detuned bank), b\u1ed9 l\u1ecdc th\u1ee5 \u0111\u1ed9ng ho\u1eb7c b\u1ed9 l\u1ecdc c\u00f4ng su\u1ea5t t\u00edch c\u1ef1c (APF) \u0111\u1ec1u c\u00f3 th\u1ec3 ph\u00f9 h\u1ee3p trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c nhau; kh\u00f4ng n\u00ean ch\u1ecdn b\u1ea5t k\u1ef3 lo\u1ea1i n\u00e0o ch\u1ec9 d\u1ef1a tr\u00ean t\u1ed5ng c\u00f4ng su\u1ea5t kW c\u1ee7a \u0111\u1ed9ng c\u01a1.<\/p>\n<h2>Ph\u1ea7n 5. N\u00ean x\u00e1c \u0111\u1ecbnh dung l\u01b0\u1ee3ng v\u00e0 v\u1ecb tr\u00ed APF nh\u01b0 th\u1ebf n\u00e0o cho nhi\u1ec1u \u1ed5 \u0111\u0129a?<\/h2>\n<p>X\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed APF t\u1ea1i \u0111i\u1ec3m c\u1ea7n b\u00f9 c\u00f4ng su\u1ea5t. \u0110i\u1ec3m n\u00e0y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t t\u1ee7 MCC c\u1ee7a bi\u1ebfn t\u1ea7n chuy\u00ean d\u1ee5ng, m\u1ed9t t\u1ee7 ph\u00e2n ph\u1ed1i ph\u1ee5 t\u1ea3i, ho\u1eb7c m\u1ed9t thanh c\u00e1i ngu\u1ed3n ph\u00eda tr\u00ean. C\u00e2u tr\u1ea3 l\u1eddi ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c m\u1ee5c ti\u00eau l\u00e0 b\u1ea3o v\u1ec7 m\u1ed9t nh\u00e1nh c\u1ea5p ngu\u1ed3n c\u1ee5c b\u1ed9, gi\u1ea3m t\u1ed5ng d\u00f2ng \u0111i\u1ec7n s\u00f3ng h\u00e0i c\u1ee7a nh\u00e0 m\u00e1y, hay \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau c\u1ee7a d\u1ef1 \u00e1n d\u1ef1a tr\u00ean \u0111i\u1ec3m \u0111\u1ea5u n\u1ed1i chung (PCC).<\/p>\n<p>M\u1ed9t \u0111\u00e1nh gi\u00e1 n\u0103ng l\u1ef1c APF n\u00ean nh\u1eadn \u0111\u01b0\u1ee3c:<\/p>\n<ol>\n<li>S\u01a1 \u0111\u1ed3 \u0111\u01a1n tuy\u1ebfn v\u1edbi v\u1ecb tr\u00ed m\u00e1y bi\u1ebfn \u00e1p, l\u1ed9 ra, t\u1ee5 \u0111i\u1ec7n v\u00e0 b\u1ed9 bi\u1ebfn t\u1ea7n.<\/li>\n<li>C\u00e1c xu h\u01b0\u1edbng d\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh theo th\u1eddi gian v\u00e0 c\u00e1c b\u1eadc s\u00f3ng h\u00e0i th\u00e0nh ph\u1ea7n cho c\u00e1c ch\u1ebf \u0111\u1ed9 v\u1eadn h\u00e0nh \u0111\u1ea1i di\u1ec7n.<\/li>\n<li>D\u00f2ng \u0111i\u1ec7n nhu c\u1ea7u t\u1ed1i \u0111a v\u00e0 th\u00f4ng tin ng\u1eafn m\u1ea1ch c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n n\u01a1i y\u00eau c\u1ea7u \u0111\u00e1nh gi\u00e1 theo ti\u00eau chu\u1ea9n IEEE 519.<\/li>\n<li>Chi ti\u1ebft v\u1ec1 l\u00f2 kh\u00e1ng \u0111i\u1ec7n, b\u1ed9 l\u1ecdc th\u1ee5 \u0111\u1ed9ng, ng\u00e2n h\u00e0ng t\u1ee5 \u0111i\u1ec7n v\u00e0 h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 hi\u1ec7n c\u00f3.<\/li>\n<li>\u0110i\u1ec3m l\u1eafp \u0111\u1eb7t CT, h\u01b0\u1edbng, kh\u00f4ng gian t\u1ee7 kh\u1ea3 d\u1ee5ng, m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t v\u00e0 c\u00e1c y\u00eau c\u1ea7u v\u1ec1 truy\u1ec1n th\u00f4ng.<\/li>\n<\/ol>\n<p>V\u1ecb tr\u00ed CNBYG <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> thi\u1ebft b\u1ecb gi\u1ea3m thi\u1ec3u d\u00f2ng \u0111i\u1ec7n h\u00e0i. \u0110\u1eebng coi v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t \u0111\u00f3 l\u00e0 m\u1ed9t cam k\u1ebft v\u1ec1 gi\u00e1 tr\u1ecb TDD, THD, m\u1ee9c ti\u1ebft ki\u1ec7m ho\u1eb7c k\u1ebft qu\u1ea3 b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb c\u1ee5 th\u1ec3.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/3.1-AHF-Active-Harmonic-Filter-1.webp\" alt=\"Thi\u1ebft b\u1ecb l\u1ecdc s\u00f3ng h\u00e0i t\u00edch c\u1ef1c (AHF) d\u00f9ng \u0111\u1ec3 gi\u1ea3m d\u00f2ng \u0111i\u1ec7n s\u00f3ng h\u00e0i c\u1ee7a bi\u1ebfn t\u1ea7n c\u00f4ng nghi\u1ec7p\" class=\"wp-image-2087\" srcset=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/3.1-AHF-Active-Harmonic-Filter-1.webp 800w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/3.1-AHF-Active-Harmonic-Filter-1-300x300.webp 300w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/3.1-AHF-Active-Harmonic-Filter-1-150x150.webp 150w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/3.1-AHF-Active-Harmonic-Filter-1-768x768.webp 768w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/3.1-AHF-Active-Harmonic-Filter-1-12x12.webp 12w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/3.1-AHF-Active-Harmonic-Filter-1-500x500.webp 500w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/3.1-AHF-Active-Harmonic-Filter-1-600x600.webp 600w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/3.1-AHF-Active-Harmonic-Filter-1-100x100.webp 100w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption>Thi\u1ebft b\u1ecb AHF ph\u1ea3i \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi m\u1ed9t \u0111i\u1ec3m \u0111o l\u01b0\u1eddng \u0111\u00e3 x\u00e1c \u0111\u1ecbnh v\u00e0 s\u01a1 \u0111\u1ed3 CT \u0111\u00e3 \u0111\u01b0\u1ee3c xem x\u00e9t.<\/figcaption><\/figure>\n<h2>Ph\u1ea7n 6. Nh\u1eefng g\u00ec ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra trong qu\u00e1 tr\u00ecnh t\u00edch h\u1ee3p v\u00e0 ch\u1ea1y th\u1eed?<\/h2>\n<p>C\u00f4ng t\u00e1c ch\u1ea1y th\u1eed ph\u1ea3i x\u00e1c nh\u1eadn r\u1eb1ng thi\u1ebft b\u1ecb nh\u1eadn di\u1ec7n \u0111\u00fang d\u00f2ng \u0111i\u1ec7n d\u1ef1 ki\u1ebfn v\u00e0 vi\u1ec7c so s\u00e1nh tr\u01b0\u1edbc\/sau s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh. C\u1ef1c t\u00ednh c\u1ee7a m\u00e1y bi\u1ebfn d\u00f2ng (CT), s\u1ef1 li\u00ean k\u1ebft pha, ph\u1ed1i h\u1ee3p b\u1ea3o v\u1ec7, th\u00f4ng gi\u00f3 v\u00e0 l\u1ed1i ti\u1ebfp c\u1eadn \u0111\u1ec3 b\u1ea3o d\u01b0\u1ee1ng n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m tra tr\u01b0\u1edbc l\u1ea7n ch\u1ea1y th\u1eed s\u1ea3n xu\u1ea5t \u0111\u1ea7u ti\u00ean.<\/p>\n<p>S\u1eed d\u1ee5ng tr\u00ecnh t\u1ef1 v\u1eadn h\u00e0nh th\u1eed th\u1ef1c t\u1ebf:<\/p>\n<ol>\n<li>X\u00e1c minh v\u1ecb tr\u00ed \u0111\u01b0\u1eddng d\u00e2y m\u1ed9t s\u1ee3i v\u00e0 v\u1ecb tr\u00ed m\u00e1y bi\u1ebfn d\u00f2ng so v\u1edbi thi\u1ebft k\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t.<\/li>\n<li>Ghi l\u1ea1i \u0111i\u1ec7n \u00e1p c\u01a1 s\u1edf, d\u00f2ng \u0111i\u1ec7n, ph\u1ed5, h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t (PF) v\u00e0 tr\u1ea1ng th\u00e1i t\u1ea3i.<\/li>\n<li>K\u00edch ho\u1ea1t thi\u1ebft b\u1ecb gi\u1ea3m thi\u1ec3u v\u00e0 x\u00e1c minh \u0111i\u1ec1u khi\u1ec3n \u1ed5n \u0111\u1ecbnh d\u01b0\u1edbi t\u1ea3i b\u00ecnh th\u01b0\u1eddng.<\/li>\n<li>L\u1eb7p l\u1ea1i c\u00e1c ph\u00e9p \u0111o trong c\u00f9ng m\u1ed9t ch\u1ebf \u0111\u1ed9 v\u1eadn h\u00e0nh v\u00e0 \u0111i\u1ec1u ki\u1ec7n \u0111\u00f3ng c\u1eaft t\u1ee5 \u0111i\u1ec7n.<\/li>\n<li>So s\u00e1nh c\u00e1c gi\u00e1 tr\u1ecb bus v\u00e0 PCC li\u00ean quan, kh\u00f4ng ph\u1ea3i c\u00e1c \u1ea3nh ch\u1ee5p m\u00e0n h\u00ecnh \u0111\u1ed3ng h\u1ed3 kh\u00f4ng li\u00ean quan.<\/li>\n<li>T\u00e0i li\u1ec7u h\u00f3a c\u1ea3nh b\u00e1o, s\u01a1 \u0111\u1ed3 truy\u1ec1n th\u00f4ng v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c m\u1edf r\u1ed9ng.<\/li>\n<\/ol>\n<h2>Ph\u1ea7n 7. Y\u00eau c\u1ea7u b\u00e1o gi\u00e1 (RFQ) s\u00f3ng h\u00e0i VFD c\u00f4ng nghi\u1ec7p n\u00ean bao g\u1ed3m nh\u1eefng g\u00ec, v\u00e0 khi n\u00e0o CNBYG kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p 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>S\u01a1 \u0111\u1ed3 m\u1ed9t s\u1ee3i<\/td>\n<td>\u0110\u1ecbnh ngh\u0129a ngu\u1ed3n, t\u1ea3i, PCC v\u00e0 v\u1ecb tr\u00ed \u1ee9ng vi\u00ean<\/td>\n<td>Ch\u1ec9 cung c\u1ea5p c\u00f4ng su\u1ea5t \u0111\u1ed9ng c\u01a1<\/td>\n<\/tr>\n<tr>\n<td>Th\u00fac \u0111\u1ea9y h\u1ed3 s\u01a1 h\u00e0ng t\u1ed3n kho v\u00e0 ngh\u0129a v\u1ee5<\/td>\n<td>Hi\u1ec3n th\u1ecb c\u00e1c ch\u1ebf \u0111\u1ed9 t\u1eadp h\u1ee3p v\u00e0 ho\u1ea1t \u0111\u1ed9ng<\/td>\n<td>\u0110ang \u0111\u1ebfm s\u1ed1 \u1ed5 \u0111\u0129a \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t nh\u01b0ng kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng th\u1eddi<\/td>\n<\/tr>\n<tr>\n<td>Xu h\u01b0\u1edbng v\u00e0 ph\u1ed5 \u0111o<\/td>\n<td>X\u00e1c \u0111\u1ecbnh d\u00f2ng \u0111i\u1ec7n s\u00f3ng h\u00e0i theo b\u1eadc v\u00e0 th\u1eddi gian<\/td>\n<td>\u0110ang g\u1eedi m\u1ed9t \u1ea3nh ch\u1ee5p m\u00e0n h\u00ecnh THD kh\u00f4ng t\u1ea3i<\/td>\n<\/tr>\n<tr>\n<td>D\u1eef li\u1ec7u s\u1ef1 c\u1ed1 m\u00e1y bi\u1ebfn \u00e1p v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n<\/td>\n<td>H\u1ed7 tr\u1ee3 PCC v\u00e0 xem x\u00e9t \u0111\u1ed9 m\u1ea1nh c\u1ee7a ngu\u1ed3n<\/td>\n<td>B\u1ecf qua th\u00f4ng tin ngu\u1ed3n th\u01b0\u1ee3ng ngu\u1ed3n<\/td>\n<\/tr>\n<tr>\n<td>D\u1eef li\u1ec7u t\u1ee5 \u0111i\u1ec7n\/cu\u1ed9n kh\u00e1ng hi\u1ec7n c\u00f3<\/td>\n<td>X\u00e1c \u0111\u1ecbnh hi\u1ec7n t\u01b0\u1ee3ng c\u1ed9ng h\u01b0\u1edfng v\u00e0 r\u1ee7i ro gia c\u1ed1 c\u1ea3i t\u1ea1o<\/td>\n<td>Xem c\u00e1c thi\u1ebft b\u1ecb PFC nh\u01b0 kh\u00f4ng c\u00f3 li\u00ean quan<\/td>\n<\/tr>\n<tr>\n<td>CT\/b\u1ea3o v\u1ec7\/gi\u1edbi h\u1ea1n kh\u00f4ng gian<\/td>\n<td>X\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng c\u00e0i \u0111\u1eb7t<\/td>\n<td>\u0110\u1ec3 tr\u1ed1ng vi\u1ec7c t\u00edch h\u1ee3p tr\u01b0\u1eddng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Kh\u1edbp \u0111\u01b0\u1eddng bi\u00ean<\/strong> B\u00e0i vi\u1ebft n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c nh\u00e0 m\u00e1y c\u00f4ng nghi\u1ec7p g\u1eb7p c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 s\u00f3ng h\u00e0i li\u00ean quan \u0111\u1ebfn truy\u1ec1n \u0111\u1ed9ng v\u00e0 c\u00f3 h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c. N\u00f3 kh\u00f4ng thay th\u1ebf s\u1ef1 ph\u1ed1i h\u1ee3p c\u1ee7a c\u00f4ng ty \u0111i\u1ec7n l\u1ef1c, k\u1ef9 thu\u1eadt b\u1ea3o v\u1ec7, h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u1ed5 \u0111\u0129a, thi\u1ebft k\u1ebf b\u1ed9 t\u1ee5 \u0111i\u1ec7n, ho\u1eb7c s\u1ef1 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t d\u00e0nh ri\u00eang cho m\u00f4 h\u00ecnh. Chia s\u1ebb g\u00f3i d\u1eef li\u1ec7u th\u00f4ng qua <a href=\"https:\/\/cnbygele.com\/vi\/contact-us\/\">Trang li\u00ean h\u1ec7 CNBYG<\/a> khi n\u00e0o y\u00eau c\u1ea7u \u0111\u00e1nh gi\u00e1 AHF\/APF.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"1080\" src=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/e70ea9e0-8989-4bb2-ae44-2924e2bc3d71.webp\" alt=\"Thi\u1ebft b\u1ecb h\u1ec7 th\u1ed1ng ch\u1ea5t l\u01b0\u1ee3ng \u0111i\u1ec7n n\u0103ng t\u00edch h\u1ee3p t\u1ee7 \u0111i\u1ec7n c\u00f4ng nghi\u1ec7p\" class=\"wp-image-2089\" srcset=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/e70ea9e0-8989-4bb2-ae44-2924e2bc3d71.webp 1080w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/e70ea9e0-8989-4bb2-ae44-2924e2bc3d71-300x300.webp 300w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/e70ea9e0-8989-4bb2-ae44-2924e2bc3d71-1024x1024.webp 1024w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/e70ea9e0-8989-4bb2-ae44-2924e2bc3d71-150x150.webp 150w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/e70ea9e0-8989-4bb2-ae44-2924e2bc3d71-768x768.webp 768w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/e70ea9e0-8989-4bb2-ae44-2924e2bc3d71-12x12.webp 12w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/e70ea9e0-8989-4bb2-ae44-2924e2bc3d71-500x500.webp 500w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/e70ea9e0-8989-4bb2-ae44-2924e2bc3d71-600x600.webp 600w, https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/e70ea9e0-8989-4bb2-ae44-2924e2bc3d71-100x100.webp 100w\" sizes=\"auto, (max-width: 1080px) 100vw, 1080px\" \/><figcaption>B\u1ea3n v\u1ebd t\u00edch h\u1ee3p, v\u1ecb tr\u00ed m\u00e1y bi\u1ebfn d\u00f2ng (CT) v\u00e0 chi ti\u1ebft b\u1ea3o v\u1ec7 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a Y\u00eau c\u1ea7u b\u00e1o gi\u00e1 (RFQ) v\u1ec1 s\u00f3ng h\u00e0i VFD c\u00f3 t\u00ednh kh\u1ea3 thi.<\/figcaption><\/figure>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<p><strong>Bi\u1ebfn t\u1ea7n (VFD) t\u1ea1o ra nh\u1eefng s\u00f3ng h\u00e0i n\u00e0o?<\/strong><\/p>\n<p>Nhi\u1ec1u c\u1ea5u h\u00ecnh ch\u1ec9nh l\u01b0u bi\u1ebfn t\u1ea7n ph\u1ed5 bi\u1ebfn t\u1ea1o ra c\u00e1c b\u1eadc d\u00f2ng \u0111i\u1ec7n s\u00f3ng h\u00e0i \u0111\u1eb7c tr\u01b0ng. H\u00e3y \u0111o ph\u1ed5 th\u1ef1c t\u1ebf v\u00ec lo\u1ea1i bi\u1ebfn t\u1ea7n, t\u1ea3i, tr\u1edf kh\u00e1ng m\u00e1y bi\u1ebfn \u00e1p v\u00e0 c\u00e1c t\u1ea3i phi tuy\u1ebfn t\u00ednh kh\u00e1c l\u00e0m thay \u0111\u1ed5i c\u00e1c th\u00e0nh ph\u1ea7n xu\u1ea5t hi\u1ec7n t\u1ea1i m\u1ed9t thanh c\u00e1i.<\/p>\n<p><strong>C\u00e1c s\u00f3ng h\u00e0i c\u1ee7a VFD n\u00ean \u0111\u01b0\u1ee3c \u0111o \u1edf \u0111\u00e2u?<\/strong><\/p>\n<p>\u0110o l\u01b0\u1eddng t\u1ea1i nh\u00e1nh b\u1ecb \u1ea3nh h\u01b0\u1edfng \u0111\u1ec3 ch\u1ea9n \u0111o\u00e1n v\u00e0 t\u1ea1i PCC \u0111\u00e3 x\u00e1c \u0111\u1ecbnh khi d\u1ef1 \u00e1n bao g\u1ed3m vi\u1ec7c l\u1eadp k\u1ebf ho\u1ea1ch s\u00f3ng h\u00e0i d\u1ef1a tr\u00ean PCC.<\/p>\n<p><strong>T\u1ea5t c\u1ea3 c\u00e1c h\u1ec7 th\u1ed1ng VFD c\u00f3 c\u1ea7n b\u1ed9 l\u1ecdc APF kh\u00f4ng?<\/strong><\/p>\n<p>Kh\u00f4ng. Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3m thi\u1ec3u tu\u00e2n theo m\u1ee5c ti\u00eau \u0111\u00e3 \u0111o \u0111\u1ea1c, \u0111\u1ed9 bi\u1ebfn \u0111\u1ed9ng c\u1ee7a t\u1ea3i, \u0111i\u1ec1u ki\u1ec7n ngu\u1ed3n, c\u1ea5u tr\u00fac topo v\u00e0 m\u1ee5c ti\u00eau c\u1ee7a d\u1ef1 \u00e1n.<\/p>\n<p><strong>C\u00e1c d\u00e3y t\u1ee5 \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi bi\u1ebfn t\u1ea7n (VFD) kh\u00f4ng?<\/strong><\/p>\n<p>Ch\u00fang c\u00f3 th\u1ec3 \u0111\u00f2i h\u1ecfi k\u1ef9 thu\u1eadt \u0111\u1eb7c bi\u1ec7t v\u00ec c\u00e1c t\u1ee5 \u0111i\u1ec7n c\u00f3 th\u1ec3 khu\u1ebfch \u0111\u1ea1i d\u00f2ng \u0111i\u1ec7n s\u00f3ng h\u00e0i trong \u0111i\u1ec1u ki\u1ec7n c\u1ed9ng h\u01b0\u1edfng song song. H\u00e3y xem x\u00e9t ph\u1ed5 v\u00e0 vi\u1ec7c ch\u1ec9nh l\u1ec7ch t\u1ea7n tr\u01b0\u1edbc.<\/p>\n<p><strong>Cu\u1ed9n kh\u00e1ng \u0111\u01b0\u1eddng d\u00e2y c\u00f3 \u0111\u1ee7 \u0111\u1ec3 gi\u1ea3m s\u00f3ng h\u00e0i kh\u00f4ng?<\/strong><\/p>\n<p>Ch\u00fang c\u00f3 th\u1ec3 h\u1eefu \u00edch cho \u0111\u1ea7u v\u00e0o \u1ed5 \u0111\u0129a c\u1ee5c b\u1ed9, nh\u01b0ng ch\u00fang kh\u00f4ng t\u1ef1 \u0111\u1ed9ng gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau s\u00f3ng h\u00e0i c\u1ee7a nh\u00e0 m\u00e1y t\u1ed5ng h\u1ee3p ho\u1eb7c PCC.<\/p>\n<p><strong>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa THDi v\u00e0 TDD l\u00e0 g\u00ec?<\/strong><\/p>\n<p>THDi hi\u1ec7n t\u1ea1i \u0111\u1ec1 c\u1eadp \u0111\u1ebfn d\u00f2ng \u0111i\u1ec7n c\u01a1 b\u1ea3n t\u1ee9c th\u1eddi. TDD \u0111\u1ec1 c\u1eadp \u0111\u1ebfn d\u00f2ng \u0111i\u1ec7n t\u1ea3i c\u00f3 nhu c\u1ea7u c\u1ef1c \u0111\u1ea1i v\u00e0 \u0111\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 t\u1ea1i PCC.<\/p>\n<p><strong>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 k\u00edch th\u01b0\u1edbc b\u1ed9 l\u1ecdc th\u1ee5 \u0111\u1ed9ng t\u00edch c\u1ef1c (APF) cho nhi\u1ec1u bi\u1ebfn t\u1ea7n (VFD)?<\/strong><\/p>\n<p>S\u1eed d\u1ee5ng c\u00e1c xu h\u01b0\u1edbng d\u00f2ng h\u00e0i \u0111\u1ea1i di\u1ec7n, t\u1ea3i v\u1eadn h\u00e0nh \u0111\u1ed3ng th\u1eddi, ph\u1ed5, th\u00f4ng tin ngu\u1ed3n v\u00e0 \u0111i\u1ec3m \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u - kh\u00f4ng ph\u1ea3i t\u1ed5ng c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c kW c\u1ee7a \u0111\u1ed9ng c\u01a1.<\/p>\n<p><strong>Ti\u00eau chu\u1ea9n IEEE 519 c\u00f3 \u00e1p d\u1ee5ng cho m\u1ecdi bi\u1ebfn t\u1ea7n (VFD) kh\u00f4ng?<\/strong><\/p>\n<p>Kh\u00f4ng. Ti\u00eau chu\u1ea9n IEEE 519 thi\u1ebft l\u1eadp c\u00e1c m\u1ee5c ti\u00eau thi\u1ebft k\u1ebf tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh t\u1ea1i PCC \u0111\u00e3 x\u00e1c \u0111\u1ecbnh. C\u00e1c ph\u00e9p \u0111o t\u1ea1i m\u1ea1ch nh\u00e1nh c\u1ee5c b\u1ed9 v\u1eabn h\u1eefu \u00edch cho vi\u1ec7c ch\u1ea9n \u0111o\u00e1n v\u00e0 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed thi\u1ebft b\u1ecb.<\/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:\/\/www.plantengineering.com\/selecting-the-right-harmonic-mitigation-solution-for-vfds\/\" rel=\"nofollow noopener\" target=\"_blank\">K\u1ef9 thu\u1eadt Nh\u00e0 m\u00e1y: L\u1ef1a ch\u1ecdn Gi\u1ea3i ph\u00e1p Gi\u1ea3m thi\u1ec3u S\u00f3ng h\u00e0i Ph\u00f9 h\u1ee3p cho Bi\u1ebfn t\u1ea7n<\/a><\/li>\n<li><a href=\"https:\/\/www.eaton.com\/content\/dam\/eaton\/products\/industrialcontrols-drives-automation-sensors\/variable-frequency-drives\/vfd-and-power-factor-correction-capacitors-ap040002en.pdf\" rel=\"nofollow noopener\" target=\"_blank\">Eaton: Bi\u1ebfn t\u1ea7n v\u00e0 T\u1ee5 b\u00f9 h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t<\/a><\/li>\n<li><a href=\"https:\/\/www.eaton.com\/content\/dam\/eaton\/products\/backup-power-ups-surge-it-power-distribution\/power-conditioners\/harmonic-correction-unit\/power-factor-capacitors-detuned-filters-application-note-TB02608001EN.pdf\" rel=\"nofollow noopener\" target=\"_blank\">Eaton: B\u1ed9 l\u1ecdc t\u00e1ch t\u1ea7n v\u00e0 c\u1ed9ng h\u01b0\u1edfng s\u00f3ng h\u00e0i<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>VFD harmonics in industrial plants should be investigated as a system issue, not assigned from a single drive nameplate. Variable-frequency-drive input rectifiers are nonlinear loads; they can inject harmonic current into the feeder and bus. The practical starting point is to measure both the affected distribution point and the point of common coupling (PCC), then [&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-2558","post","type-post","status-publish","format-standard","hentry","category-blog"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":7}},"acf":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/posts\/2558","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=2558"}],"version-history":[{"count":1,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/posts\/2558\/revisions"}],"predecessor-version":[{"id":2613,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/posts\/2558\/revisions\/2613"}],"wp:attachment":[{"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/media?parent=2558"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/categories?post=2558"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/tags?post=2558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}