{"id":17104,"date":"2014-04-20T10:42:57","date_gmt":"2014-04-20T03:42:57","guid":{"rendered":"https:\/\/banbientan.com\/?p=17104"},"modified":"2014-04-20T10:42:57","modified_gmt":"2014-04-20T03:42:57","slug":"bien-tan-invt-giai-phap-cho-he-thong-lo-hoi","status":"publish","type":"post","link":"https:\/\/hunglong.banbientan.com\/?p=17104","title":{"rendered":"Bi\u1ebfn t\u1ea7n INVT Gi\u1ea3i ph\u00e1p cho h\u1ec7 th\u1ed1ng l\u00f2 h\u01a1i"},"content":{"rendered":"

Bien tan invt<\/a>\u00a0<\/strong>_Gi\u1ea3i ph\u00e1p cho h\u1ec7 th\u1ed1ng l\u00f2 h\u01a1i<\/h1>\n

\u00a0Bi\u1ec1n t\u1ea7n INVT \u0111a n\u0103ng: c\u00f3 nhi\u1ec1u input, output,\u00a0bi\u1ebfn t\u1ea7n\u00a0c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c c\u00e1c t\u00edn hi\u1ec7u analog t\u1eeb 0 ~ 20mA \/4~20mA, 0~10V, -10 \u0111\u1ebfn +10V\u00a0 t\u00edch h\u1ee3p truy\u1ec1n th\u00f4ng Modbus RS485 . Ch\u1ebf \u0111\u1ed9 \u0111i\u1ec1u khi\u1ec3n V\/F, sensorless. C\u00f3 t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n PID: \u0111\u1ecdc tr\u1ef1c ti\u1ebfp t\u1eeb t\u00edn hi\u1ec7u c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t \u0111\u01b0a v\u1ec1 v\u00e0 t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 \u0111\u1ec3 cung c\u1ea5p h\u01a1i \u0111\u00fang v\u1edbi nhu c\u1ea7u s\u1eed d\u1ee5ng.<\/h2>\n

Ph\u00e2n T\u00edch H\u1ec7 Th\u1ed1ng L\u00f2 H\u01a1i:<\/b>
\nC\u00e1c thi\u1ebft b\u1ecb ti\u00eau th\u1ee5 \u0111i\u1ec7n ch\u00ednh trong l\u00f2 h\u01a1i bao g\u1ed3m: motor Qu\u1ea1t H\u00fat; motor Qu\u1ea1t Th\u1ed5i; motor bang t\u1ea3i C\u1ea5p li\u1ec7u; motor k\u00e9o B\u0103ng T\u1ea3i than\u2026
\n– L\u00f2 h\u01a1i l\u00e0 thi\u1ebft b\u1ecb trong \u0111\u00f3 x\u1ea3y ra qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y nhi\u00ean li\u1ec7u, nhi\u1ec7t l\u01b0\u1ee3ng t\u1ecfa ra trong qu\u00e1 tr\u00ecnh ch\u00e1y s\u1ebd truy\u1ec1n cho n\u01b0\u1edbc trong l\u00f2 \u0111\u1ec3 bi\u1ebfn n\u01b0\u1edbc th\u00e0nh h\u01a1i qu\u00e1 nhi\u1ec7t. H\u01a1i \u0111\u01b0\u1ee3c d\u1eabn v\u00e0o m\u00e1y c\u00f4ng nghi\u1ec7p l\u00e0m ngu\u1ed3n nhi\u1ec7t s\u1ea5y c\u00e1c lo\u1ea1i s\u1ea3n ph\u1ea9m: gi\u1ea5y( m\u00e1y xeo gi\u1ea5y), v\u1ea3i( m\u00e1y nhu\u1ed9m), \u2026Lo\u1ea1i l\u00f2 h\u01a1i n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 l\u00f2 h\u01a1i c\u00f4ng nghi\u1ec7p, c\u00f3 \u00e1p su\u1ea5t h\u01a1i t\u1eeb 3 – 12bar, nhi\u1ec7t \u0111\u1ed9 t\u1eeb 130 – 180o<\/sup>C.
\n\"lohoi\"<\/a>
\nT\u1ea1i sao ph\u1ea3i l\u1eafp \u0111\u1eb7t bi\u1ebfn t\u1ea7n cho h\u1ec7 th\u1ed1ng l\u00f2 h\u01a1i?<\/b>
\n–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Bi\u1ebfn t\u1ea7n \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 nh\u1edd \u0111\u00f3 c\u00f3 th\u1ec3 ch\u1ec9nh \u0111\u01b0\u1ee3c l\u01b0u l\u01b0\u1ee3ng gi\u00f3 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u s\u1eed dung c\u1ee7a nh\u00e0 m\u00e1y qua \u0111\u00f3 c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c \u0111i\u1ec7n n\u0103ng.
\n–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0T\u1ed1c \u0111\u1ed9 \u0111\u01b0a nguy\u00ean li\u1ec7u v\u00e0o \u1ed5n \u0111\u1ecbnh \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u.
\n–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0D\u1ef1a theo l\u00fd thuy\u1ebft v\u1ec1 th\u1ee7y l\u1ef1c, m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00f4ng su\u1ea5t tr\u1ee5c \u0111\u1ed9ng c\u01a1 (P), l\u01b0u l\u01b0\u1ee3ng kh\u00ed (Q) v\u00e0 \u00e1p su\u1ea5t (H) \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a theo c\u00f4ng th\u1ee9c sau:
\n–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0P=K*H*Q\/\u03b7
\n\"lohoi(1)\"
\n 
\n–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Trong \u0111\u00f3, K l\u00e0 m\u1ed9t h\u1eb1ng s\u1ed1;
\n–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0M\u1ed1i quan h\u1ec7 gi\u1eefa ch\u00fang v\u1edbi t\u1ed1c \u0111\u1ed9 quay N nh\u01b0 sau:-\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u03b7 h\u1ec7 s\u1ed1 hi\u1ec7u su\u1ea5t.<\/p>\n

Q1\/Q2=N1\/N2
\nH1\/H2= (N1\/N2)2<\/sup>
\nP1\/P2= (N1\/N2)3<\/sup><\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u0110\u01b0\u1eddng cong 1 trong bi\u1ec3u \u0111\u1ed3 tr\u00ean th\u1ec3 hi\u1ec7n \u0111\u01b0\u1eddng cong thu\u1ed9c t\u00ednh \u00e1p su\u1ea5t (H) v\u00e0 l\u01b0u l\u01b0\u1ee3ng kh\u00ed (Q) c\u1ee7a qu\u1ea1t gi\u00f3 \u1edf t\u1ed1c \u0111\u1ed9 c\u1ed1 \u0111\u1ecbnh. \u0110\u01b0\u1eddng cong th\u1ee9 2 bi\u1ec3u th\u1ecb \u0111\u1eb7c t\u00ednh c\u1ea3n kh\u00ed c\u1ee7a h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn (Van trong tr\u1ea1ng th\u00e1i m\u1edf 100%). Gi\u1ea3 thi\u1ebft r\u1eb1ng qu\u1ea1t gi\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u00e0m vi\u1ec7c hi\u1ec7u qu\u1ea3 nh\u1ea5t t\u1ea1i \u0111i\u1ec3m A, v\u00e0 l\u01b0u l\u01b0\u1ee3ng kh\u00ed ra Q1 l\u00e0 100%. T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, c\u00f4ng su\u1ea5t tr\u00ean tr\u1ee5c l\u00e0 P1 = Q1*H1, t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi di\u1ec7n t\u00edch AH10Q1. N\u1ebfu l\u01b0u l\u01b0\u1ee3ng kh\u00ed c\u1ea7n gi\u1ea3m t\u1eeb Q1 xu\u1ed1ng Q (v\u00ed d\u1ee5 70%) \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u k\u0129 thu\u1eadt s\u1ea3n xu\u1ea5t, \u0111\u1eb7c t\u00ednh c\u1ea3n c\u1ee7a h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn c\u00f3 th\u1ec3 b\u1ecb t\u0103ng l\u00ean do s\u1ef1 \u0111i\u1ec1u ch\u1ec9nh van. V\u00e0o l\u00fac n\u00e0y, thu\u1ed9c t\u00ednh c\u1ea3n c\u1ee7a h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn thay \u0111\u1ed5i theo \u0111\u01b0\u1eddng cong 3, v\u00e0 nh\u01b0 v\u1eady h\u1ec7 th\u1ed1ng s\u1ebd ho\u1ea1t \u0111\u1ed9ng t\u1ea1i \u0111i\u1ec3m B thay v\u00ec \u0111i\u1ec3m A nh\u01b0 ban \u0111\u1ea7u. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 th\u1ea5y tr\u00ean \u0111\u1ed3 th\u1ecb l\u00e0 \u00e1p su\u1ea5t kh\u00ed t\u0103ng, v\u00e0 c\u00f4ng su\u1ea5t tr\u00ean tr\u1ee5c l\u00e0 t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi di\u1ec7n t\u00edch BH20Q2, c\u00f3 gi\u1ea3m nh\u1eb9. N\u1ebfu t\u1ed1c \u0111\u1ed9 quay c\u1ee7a qu\u1ea1t gi\u00f3 b\u1ecb gi\u1ea3m t\u1eeb N1 t\u1edbi N2 b\u1eb1ng vi\u1ec7c d\u00f9ng Bi\u1ebfn t\u1ea7n \u0111i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9, d\u1ef1a tr\u00ean nguy\u00ean t\u1eafc t\u1ec9 l\u1ec7 c\u1ee7a qu\u1ea1t, ch\u00fang ta c\u00f3 th\u1ec3 v\u1ebd \u0111\u01b0\u1eddng thu\u1ed9c t\u00ednh quan h\u1ec7 gi\u1eefa \u00e1p su\u1ea5t H v\u00e0 l\u01b0u l\u01b0\u1ee3ng kh\u00ed Q cho qu\u1ea1t t\u1ea1i t\u1ed1c \u0111\u1ed9 N2, nh\u01b0 \u0111\u01b0\u1eddng cong 4. T\u01b0\u01a1ng t\u1ef1, l\u01b0u l\u01b0\u1ee3ng Q2, \u00e1p su\u1ea5t H3 gi\u1ea3m \u0111\u1ed9t ng\u1ed9t v\u00e0 c\u00f4ng su\u1ea5t P2 (b\u1eb1ng di\u1ec7n t\u00edch CH30Q2) c\u0169ng gi\u1ea3m r\u1ea5t nhi\u1ec1u. N\u0103ng l\u01b0\u1ee3ng ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c l\u00e0\u00a0\u25b3P=\u25b3HQ2, t\u1ec9 l\u1ec7 v\u1edbi di\u1ec7n t\u00edch BH2H3C. Hi\u1ec7u qu\u1ea3 ti\u1ebft ki\u1ec7m \u0111i\u1ec7n l\u00e0m r\u1ea5t r\u00f5 r\u00e0ng.
\n–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0D\u1ef1a tr\u00ean nguy\u00ean t\u1eafc th\u1ee7y l\u1ef1c, l\u01b0u l\u01b0\u1ee3ng Q l\u00e0 t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi t\u1ed1c \u0111\u1ed9 quay, \u00e1p su\u1ea5t H l\u1ea1i t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi b\u00ecnh ph\u01b0\u1eddng t\u1ed1c \u0111\u1ed9 quay, v\u00e0 c\u00f4ng su\u1ea5t tr\u00ean tr\u1ee5c P th\u00ec t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi l\u1eadp ph\u01b0\u01a1ng t\u1ed1c \u0111\u1ed9 quay. Khi l\u01b0u l\u01b0\u1ee3ng kh\u00ed gi\u1ea3m v\u00e0 t\u1ed1c \u0111\u1ed9 quay c\u1ee7a qu\u1ea1t gi\u00f3 gi\u1ea3m theo, c\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 tr\u00ean tr\u1ee5c s\u1ebd \u0111\u01b0\u1ee3c gi\u1ea3m \u0111\u00e1ng k\u1ec3.
\n–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0V\u00ed d\u1ee5, khi l\u01b0u l\u01b0\u1ee3ng kh\u00ed gi\u1ea3m xu\u1ed1ng 80% v\u00e0 t\u1ed1c \u0111\u1ed9 quay gi\u1ea3m xu\u1ed1ng 80% th\u00ec c\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 tr\u00ean tr\u1ee5c gi\u1ea3m xu\u1ed1ng t\u1edbi 51% c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c. Khi l\u01b0u l\u01b0\u1ee3ng gi\u1ea3m xu\u1ed1ng 50%, c\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 tr\u00ean tr\u1ee5c gi\u1ea3m xu\u1ed1ng 13% c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c. C\u00f4ng su\u1ea5t ti\u1ebft ki\u1ec7m th\u1ef1c s\u1ef1 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u \u0111\u1ebfn \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c th\u1ef1c t\u1ebf,nh\u01b0ng n\u0103ng l\u01b0\u1ee3ng ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c l\u00e0 r\u1ea5t l\u1edbn.
\n–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Nh\u01b0 v\u1eady, trong m\u00e1y m\u00f3c c\u00f3 trang b\u1ecb qu\u1ea1t gi\u00f3 v\u00e0 b\u01a1m, vi\u1ec7c s\u1eed d\u1ee5ng Bi\u1ebfn t\u1ea7n \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh l\u01b0u l\u01b0\u1ee3ng v\u00e0 t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y l\u00e0 c\u00e1ch hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng.
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 L\u1ee3i \u00edch khi l\u1eafp \u0111\u1eb7t bi\u1ebfn t\u1ea7n<\/b><\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0+\u00a0 Ti\u1ebft ki\u1ec7m \u0111i\u1ec7n<\/div>\n
–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0+\u00a0 B\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1, b\u1ea3o v\u1ec7 d\u00e2y curoa, ch\u1ed1ng va \u0111\u1eadp c\u01a1 kh\u00ed.<\/div>\n
–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 +\u00a0\u00a0Gi\u1ea3m chi ph\u00ed b\u1ea3o d\u01b0\u1ee1ng, b\u1ea3o tr\u00ec<\/div>\n
–\u00a0\u00a0\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 +\u00a0\u00a0B\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n kh\u1ecfi c\u00e1c l\u1ed7i m\u1ea5t pha, ch\u1ea1m pha, qu\u00e1 t\u1ea3i, qu\u00e1 \u00e1p\u2026<\/div>\n
–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0+\u00a0 T\u0103ng hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng \u0111i\u1ec7n.\n<\/div>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/strong>II. Nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c<\/strong>:\u00a0\u00a0V\u1edbi \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt \u0111i\u1ec1u khi\u1ec3n s\u1eed d\u1ee5ng m\u00e1y vi t\u00ednh hi\u1ec7n \u0111\u1ea1i, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng INVT s\u1eed d\u1ee5ng c\u00e1c t\u00edn hi\u1ec7u c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t v\u00e0 t\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111i\u1ec1u khi\u1ec3n \u0111\u1ec3 gi\u1eefa cho \u00e1p su\u1ea5t \u1edf \u0111\u1ea1t gi\u00e1 tr\u1ecb mong mu\u1ed1n theo t\u1ed1c \u0111\u1ed9 quay motor c\u1ee7a b\u01a1m \u0111i\u1ec1u khi\u1ec3n \u00e1p su\u1ea5t cho \u0111\u01b0\u1eddng \u1ed1ng c\u1ea5p n\u01b0\u1edbc, v\u00ec v\u1eady ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c n\u0103ng l\u01b0\u1ee3ng ti\u00eau th\u1ee5 kh\u00f4ng c\u1ea7n thi\u1ebft v\u00e0 do \u0111\u00f3 ti\u1ebft ki\u1ec7m \u0111i\u1ec7n n\u0103ng.\u00a0<\/i><\/b>
\n2. S\u01a1 \u0111\u1ed3 kh\u1ed1i c\u1ee7a nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c c\u01a1 b\u1ea3n:<\/i><\/b>
\n\"sodo<\/a>
\n3. \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a b\u1ed9 \u0111i\u1ec1u khi\u1ec3n ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng INVT<\/i><\/b><\/p>\n

+\u00a0C\u00f3 s\u1eb5n ch\u01b0\u01a1ng tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n ch\u00ednh v\u00e0 d\u1ec5 d\u00e0ng c\u00e0i \u0111\u1eb7t; ch\u1ea5p nh\u1eadn h\u1ec7 th\u1ed1ng \u0111i\u1ec7n\/ ch\u1ebf \u0111\u1ed9 \u0111i\u1ec1u khi\u1ec3n ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 ch\u1ed1ng s\u1ef1 c\u1ed1 c\u1ee7a c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t.<\/div>\n
+\u00a0\u0110i\u1ec1u khi\u1ec3n \u0111i\u1ec7n, bi\u1ebfn \u0111i\u1ec1u khi\u1ec3n \u00e1p su\u1ea5t on\/off th\u00e0nh \u0111i\u1ec1u khi\u1ec3n \u00e1p su\u1ea5t li\u00ean t\u1ee5c, \u0111i\u1ec1u khi\u1ec3n \u00e1p su\u1ea5t ch\u00ednh x\u00e1c h\u01a1n v\u00e0 \u00e1p l\u1ef1c n\u01b0\u1edbc \u1ed5n \u0111\u1ecbnh h\u01a1n.<\/div>\n
+\u00a0Thi\u1ebft b\u1ecb kh\u1edfi \u0111\u1ed9ng \u00eam, \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 l\u00e0 d\u1ea3i li\u00ean t\u1ee5c, tr\u00e1nh \u0111\u01b0\u1ee3c t\u00e1c \u0111\u1ed9ng c\u1ee7a d\u00f2ng kh\u1edfi \u0111\u1ed9ng;<\/div>\n
+\u00a0\u0110\u1eb7c bi\u1ec7t l\u00e0 c\u1ea3i thi\u1ec7n h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t, g\u1ea7n nh\u01b0 l\u00e0 kh\u00f4ng c\u00f3 m\u1ea5t m\u00e1t;<\/div>\n
+\u00a0V\u1eadn h\u00e0nh d\u1ec5 d\u00e0ng, \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng m\u00e1y vi t\u00ednh c\u00f3 hi\u1ec7u qu\u1ea3 cao, t\u1ec9 l\u1ec7 l\u1ed7i g\u1ea7n b\u1eb1ng kh\u00f4ng, v\u1eadn h\u00e0nh \u0111\u1ed3ng b\u1ed9 m\u00e0 kh\u00f4ng c\u1ea7n th\u00eam b\u1ea5t k\u1ef3 s\u1ef1 \u0111i\u1ec1u ch\u1ec9nh n\u00e0o.<\/div>\n

T\u1ea1i sao n\u00ean s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n<\/a><\/strong>\u00a0INVT<\/b>
\n+ Bi\u1ec1n t\u1ea7n INVT \u0111a n\u0103ng: c\u00f3 nhi\u1ec1u input, output,\u00a0bi\u1ebfn t\u1ea7n\u00a0c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c c\u00e1c t\u00edn hi\u1ec7u analog t\u1eeb 0 ~ 20mA \/4~20mA, 0~10V, -10 \u0111\u1ebfn +10V\u00a0 t\u00edch h\u1ee3p truy\u1ec1n th\u00f4ng Modbus RS485
\n.
\n+ Ch\u1ebf \u0111\u1ed9 \u0111i\u1ec1u khi\u1ec3n V\/F, sensorless vector.
\n+ C\u00f3 t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n PID: \u0111\u1ecdc tr\u1ef1c ti\u1ebfp t\u1eeb t\u00edn hi\u1ec7u c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t \u0111\u01b0a v\u1ec1 v\u00e0 t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 \u0111\u1ec3 cung c\u1ea5p h\u01a1i \u0111\u00fang v\u1edbi nhu c\u1ea7u s\u1eed d\u1ee5ng.
\n+ T\u00edch h\u1ee3p gi\u1ea3i ph\u00e1p FDT: gi\u00fap cho bi\u1ebfn t\u1ea7n l\u1eafp \u0111\u01b0\u1ee3c \u1edf qu\u1ea1t h\u00fat c\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c bi\u1ebfn t\u1ea7n \u1edf qu\u1ea1t th\u1ed5i.
\n+ T\u00edch h\u1ee3p P\/G mod: Gi\u00fap h\u1ec7 th\u1ed1ng gi\u1ea3m gi\u00e1 th\u00e0nh \u0111\u1ea7u t\u01b0.
\n+ H\u00e3ng\u00a0INVT\u00a0l\u00e0 cho ra \u0111\u1eddi nh\u1eefng d\u00f2ng bi\u1ebfn t\u1ea7n \u0111a n\u0103ng gi\u00fap cho h\u1ec7 th\u1ed1ng v\u1eadn h\u00e0nh v\u00e0 c\u1ea5u t\u1ea1o \u0111\u01a1n gi\u1ea3n.
\n+ Gi\u00e1 th\u00e0nh canh tranh t\u1ed1t.
\n+ D\u1ecbch v\u1ee5 t\u1ed1t, \u0111\u1ed9i ng\u0169 k\u1ef9 s\u01b0 \u0111\u00f4ng, c\u00f3 tay ngh\u1ec1 cao, lu\u00f4n th\u1ecfa m\u00e3n mong \u0111\u1ee3i c\u1ee7a b\u1ea1n.
\n+ Ngo\u00e0i ra \u0111\u1ed1i v\u1edbi s\u1ea3n ph\u1ea9m Goodrive c\u00f3 t\u00edch h\u1ee3p \u0111\u1ebfn 2 FDT ( C\u00f3 2 ng\u01b0\u1ee1ng th\u1ea5p, 2 ng\u01b0\u1ee1ng cao) \u01b0u di\u1ec3m l\u00e0 \u0111\u1ecdc \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u00f5 senssoless vector.<\/p>\n","protected":false},"excerpt":{"rendered":"

Bien tan invt\u00a0_Gi\u1ea3i ph\u00e1p cho h\u1ec7 th\u1ed1ng l\u00f2 h\u01a1i \u00a0Bi\u1ec1n t\u1ea7n INVT \u0111a n\u0103ng: c\u00f3 nhi\u1ec1u input, output,\u00a0bi\u1ebfn t\u1ea7n\u00a0c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c c\u00e1c t\u00edn hi\u1ec7u analog t\u1eeb 0 ~ 20mA \/4~20mA, 0~10V, -10 \u0111\u1ebfn +10V\u00a0 t\u00edch h\u1ee3p truy\u1ec1n th\u00f4ng Modbus RS485 . Ch\u1ebf \u0111\u1ed9 \u0111i\u1ec1u khi\u1ec3n V\/F, sensorless. C\u00f3 t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n […]<\/p>\n","protected":false},"author":2,"featured_media":17105,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[697,12749,4626,10585,12750],"class_list":["post-17104","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cau-hoi-ve-bien-tan","tag-bien-tan","tag-bien-tan-cho-lo-hoi","tag-bien-tan-invt","tag-inverter-invt","tag-lo-hoi"],"_links":{"self":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts\/17104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17104"}],"version-history":[{"count":0,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts\/17104\/revisions"}],"wp:attachment":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}