{"id":24937,"date":"2011-01-09T16:27:02","date_gmt":"2011-01-09T09:27:02","guid":{"rendered":"https:\/\/banbientan.com\/?p=24937"},"modified":"2011-01-09T16:27:02","modified_gmt":"2011-01-09T09:27:02","slug":"cach-do-kiem-tra-diode-igbt-cong-suat-bien-tan-servo-mua-ban-sua-chua-bien-tan-tai-ha-noi","status":"publish","type":"post","link":"https:\/\/hunglong.banbientan.com\/?p=24937","title":{"rendered":"C\u00e1ch \u0111o ki\u1ec3m tra diode igbt c\u00f4ng su\u1ea5t bi\u1ebfn t\u1ea7n servo . Mua b\u00e1n s\u1eeda ch\u1eefa bi\u1ebfn t\u1ea7n t\u1ea1i h\u00e0 n\u1ed9i"},"content":{"rendered":"\n

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H\u00f4m nay m\u00ecnh s\u1ebd chia s\u1ebb cho c\u00e1c b\u1ea1n c\u00e1ch \u0111o ki\u1ec3m tra c\u01a1 b\u1ea3n diode igbt c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n servo \u0111\u1ec3 bi\u1ebft xem thi\u1ebft b\u1ecb c\u1ee7a m\u00ecnh c\u00f3 b\u1ecb h\u01b0 h\u1ecfng b\u1ed9 ph\u1eadn n\u00e0y kh\u00f4ng ?<\/p>\n

T\u1ea1i sao ph\u1ea3i \u0111o ki\u1ec3m tra diode igbt c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n servo.<\/h2>\n

Bi\u1ebfn t\u1ea7n v\u00e0 servo hi\u1ec7n nay xu\u1ea5t hi\u1ec7n r\u1ea5t nhi\u1ec1u trong m\u00e1y m\u00e1y c\u00f4ng nghi\u1ec7p, ch\u00ednh v\u00ec v\u1eady m\u00e0 c\u0169ng th\u01b0\u1eddng xuy\u00ean x\u1ea3y ra t\u00ecnh tr\u1ea1ng h\u01b0 h\u1ecfng. Ch\u00ednh v\u00ec v\u1eady m\u00e0 \u0111\u00f2i h\u1ecfi k\u1ef9 s\u01b0 b\u1ea3o tr\u00ec ho\u1eb7c th\u1ee3 s\u1eeda ch\u1eefa ph\u1ea3i n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c thao t\u00e1c ki\u1ec3m tra \u0111o \u0111\u1ea1c diode c\u00f4ng su\u1ea5t igbt c\u1ee7a bi\u1ebfn t\u1ea7n servo nh\u1eb1m t\u00ecm ra c\u00e1ch s\u1eeda ch\u1eefa ho\u1eb7c thay th\u1ebf m\u1ed9t c\u00e1ch nhanh ch\u00f3ng nh\u1ea5t.<\/p>\n

Vi\u1ec7c ki\u1ec3m tra diode igbt c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n c\u00f2n gi\u00fap cho ch\u00fang ta lo\u1ea1i tr\u1eeb \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 nguy\u00ean nh\u00e2n khi\u1ebfn bi\u1ebfn t\u1ea7n b\u00e1o l\u1ed7i qu\u00e1 d\u00f2ng hay m\u1ea5t pha ng\u00f5 ra nh\u1eb1m c\u00f3 ph\u01b0\u01a1ng \u00e1n ki\u1ec3m tra nh\u1eefng linh ki\u1ec7n kh\u00e1c m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n

C\u1ea5u t\u1ea1o diode igbt c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n servo.<\/h2>\n

V\u1ec1 m\u1eb7t c\u1ea5u t\u1ea1o th\u00ec diode igbt c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n v\u00e0 servo th\u01b0\u1eddng t\u01b0\u01a1ng \u0111\u1ed1i gi\u1ed1ng nhau theo nh\u01b0 h\u00ecnh ph\u00eda tr\u00ean. \u1ede ng\u00f5 ra th\u01b0\u1eddng c\u00f3 6 diode c\u00f4ng su\u1ea5t( \u0111\u1ed1i v\u1edbi lo\u1ea1i ng\u00f5 v\u00e0o 1 pha th\u00ec s\u1eed d\u1ee5ng 4 diode). C\u00f2n ng\u00f5 ra th\u00ec \u0111a s\u1ed1 \u0111\u1ec1u s\u1eed d\u1ee5ng 6 con igbt c\u00f4ng su\u1ea5t.<\/p>\n

V\u1ec1 m\u1eb7t k\u00fd hi\u1ec7u th\u00ec ch\u00e2n ng\u00f5 v\u00e0o tr\u00ean bi\u1ebfn t\u1ea7n th\u01b0\u1eddng k\u00fd hi\u1ec7u theo 2 ki\u1ec3u. M\u1ed9t l\u00e0 k\u00fd hi\u1ec7u d\u1ea1ng R S T hai l\u00e0 k\u00fd hi\u1ec7u d\u1ea1ng U V W. C\u00f2n \u0111\u1ed1i v\u1edbi ng\u00f5 ra th\u00ec \u0111a s\u1ed1 \u0111\u1ec1u k\u00fd hi\u1ec7u d\u1ea1ng U V W. Ngo\u00e0i ra th\u00ec c\u00e1c b\u1ea1n c\u1ea7n ph\u1ea3i quan t\u00e2m t\u1edbi ch\u00e2n DC+ \u2013 c\u1ee7a bi\u1ebfn t\u1ea7n. C\u1eb7p ch\u00e2n n\u00e0y c\u00f3 th\u1ec3 k\u00fd hi\u1ec7u + v\u00e0 \u2013 ho\u1eb7c P v\u00e0 N( L\u01b0u \u00fd c\u00e1c b\u1ea1n c\u1ea7n ph\u00e2n bi\u1ec7t r\u00f5 ch\u00e2n +- c\u1ee7a DC bus \u0111\u1ec3 tr\u00e1nh \u0111o nh\u1ea7m ph\u1ea3i 2 ch\u00e2n c\u1ee7a \u0111i\u1ec7n tr\u1edf x\u1ea3).<\/p>\n

Vi\u1ec7c x\u00e1c \u0111\u1ecbnh \u0111\u00fang ch\u1ee9c n\u0103ng c\u1ee7a c\u00e1c ch\u00e2n n\u00e0y m\u1edbi gi\u00fap c\u00e1c b\u1ea1n c\u00f3 thao t\u00e1c \u0111o ki\u1ec3m tra m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c \u0111\u01b0\u1ee3c.<\/p>\n

C\u00e1c b\u01b0\u1edbc ti\u1ebfn h\u00e0nh \u0111o ki\u1ec3m tra diode igbt c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n servo.<\/h2>\n

\u0110\u1ec3 \u0111o \u0111\u1ea1c hay ki\u1ec3m tra diode igbt c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n th\u00ec c\u00e1c b\u1ea1n c\u1ea7n ph\u1ea3i chu\u1ea9n b\u1ecb m\u1ed9t thi\u1ebft b\u1ecb quan tr\u1ecdng \u0111\u00f3 l\u00e0 \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n hay c\u00f2n g\u1ecdi l\u00e0 VOM. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y th\u00ec \u0111a s\u1ed1 m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u s\u1eed d\u1ee5ng VOM d\u1ea1ng hi\u1ec3n th\u1ecb s\u1ed1 \u0111\u1ec3 \u0111o \u0111\u01b0\u1ee3c d\u1ec5 d\u00e0ng v\u00e0 ch\u00ednh x\u00e1c h\u01a1n. B\u1ea1n n\u00ean l\u1ef1a ch\u1ecdn nh\u1eefng lo\u1ea1i \u0111\u1ed3ng h\u1ed3 c\u1ee7a th\u01b0\u01a1ng hi\u1ec7u t\u1ed1t c\u1ee7a Nh\u1eadt B\u1ea3n ho\u1eb7c M\u1ef9 \u0111\u1ec3 th\u00f4ng s\u1ed1 \u0111o \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>\n

Khi ti\u1ebfn h\u00e0nh \u0111o c\u00e1c b\u1ea1n chuy\u1ec3n \u0111\u1ed3ng h\u1ed3 VOM sang ch\u1ebf \u0111\u1ed9 \u0111o tr\u1edf, \u0111\u1ed1i v\u1edbi \u0111\u1ed3ng h\u1ed3 kim th\u00ec c\u00e1c b\u1ea1n ch\u1ecdn thang \u0111o l\u00e0 1 ohm.<\/p>\n

\u0110\u1ec3 ki\u1ec3m ra diode c\u00f4ng su\u1ea5t D1 th\u00ec c\u00e1c b\u1ea1n d\u00f9ng 2 que th\u1eed c\u1ee7a VOM c\u1eb7p v\u00e0o ch\u00e2n R v\u00e0 ch\u00e2n + c\u1ee7a DC bus, sau \u0111\u00f3 \u0111\u1ea3o v\u1ecb tr\u00ed c\u1ee7a 2 que th\u1eed l\u1ea1i cho nhau. N\u1ebfu k\u1ebft qu\u00e1 hi\u1ec3n th\u1ecb tr\u00ean \u0111\u1ed3ng h\u1ed3 1 l\u1ea7n l\u00e0 s\u1ed1 Ohm r\u1ea5t nh\u1ecf c\u1ee1 v\u00e0i ohm ki\u1ec3u nh\u01b0 th\u00f4ng m\u1ea1ch v\u00e0 l\u1ea7n 2 l\u00e0 s\u1ed1 ohm r\u1ea5t l\u1edbn ki\u1ec3u nh\u01b0 h\u1edf m\u1ea1ch th\u00ec diode c\u00f2n t\u1ed1t kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec. D\u1ef1a v\u00e0o s\u01a1 \u0111\u1ed3 nguy\u00ean l\u00fd th\u00ec D1 D2 D3 s\u1ebd l\u1ea7n l\u01b0\u1ee3t \u0111o R S T v\u1edbi ch\u00e2n +. c\u00f2n D3 D4 D5 s\u1ebd \u0111o R S T v\u1edbi ch\u00e2n -.<\/p>\n

C\u00f2n \u0111\u1ed1i v\u1edbi igbt c\u00f4ng su\u1ea5t th\u00ec c\u00e1c b\u1ea1n \u0111\u1ec3 que \u0111o v\u00e0o ch\u00e2n U v\u00e0 ch\u00e2n + c\u1ee7a DC bus \u0111\u1ec3 th\u1ef1c hi\u1ec7n thao t\u00e1c t\u01b0\u01a1ng t\u1ef1 nh\u01b0 tr\u00ean. V\u1ec1 b\u1ea3n ch\u1ea5t th\u00ec igbt c\u0169ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 diode n\u00ean c\u00e1c b\u1ea1n v\u1eabn d\u00f9ng c\u00e1ch n\u00e0y \u0111\u1ec3 ki\u1ec3m tra igbt. \u0110\u1ed1i v\u1edbi igbt c\u00f4ng su\u1ea5t th\u00ec theo th\u1ee9 t\u1ef1 \u0111\u1ec3 \u0111o T1 T2 T3 b\u1ea1n \u0111o ch\u00e2n + v\u1edbi ch\u00e2n U V W c\u00f2n T3 T4 T5 d\u00f9ng ch\u00e2n U V W v\u00e0 ch\u00e2n -.<\/p>\n

L\u01b0u \u00fd khi \u0111o \u0111\u1ea1c ki\u1ec3m tra diode igbt c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n servo.<\/h2>\n

Vi\u1ec7c \u0111o \u0111\u1ea1c ki\u1ec3m tra diode igbt c\u00f4ng su\u1ea5t c\u1ee7a bi\u1ebfn t\u1ea7n servo m\u1ee5c \u0111\u00edch ch\u1ec9 ki\u1ec3m tra t\u00ecnh tr\u1ea1ng c\u1ee7a nh\u1eefng linh ki\u1ec7n n\u00e0y c\u00f3 c\u00f2n ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c kh\u00f4ng ch\u1ee9 ch\u01b0a ch\u1eafc ch\u1eafn l\u00e0 k\u1ebft lu\u1eadn ch\u00fang kh\u00f4ng h\u01b0 h\u1ecfng. B\u1edfi v\u00ec th\u1ef1c t\u1ebf th\u00ec li\u00ean quan t\u1edbi igbt c\u00f4ng su\u1ea5t c\u00f2n c\u00f3 ch\u00e2n k\u00edch n\u1eefa m\u00e0 th\u01b0\u1eddng r\u1ea5t kh\u00f3 c\u00e1ch ly \u0111\u1ec3 \u0111o ch\u00e2n n\u00e0y.<\/p>\n

Khi \u0111o \u0111\u1ea1c l\u01b0u \u00fd ph\u1ea3i t\u1eaft ngu\u1ed3n thi\u1ebft b\u1ecb, th\u00e1o d\u00e2y ngu\u1ed3n c\u0169ng nh\u01b0 d\u00e2y motor \u0111\u1ec3 vi\u1ec7c \u0111o \u0111\u1ea1c \u0111\u01b0\u1ee3c ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n

C\u00f4ng ty TNHH \u0111i\u1ec7n v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a H\u01b0ng Long (Hung Long AE Co.,ltd)<\/strong><\/p>\n

S\u1ed1 66, Ng\u00f5 282 Kim Giang, Ph\u01b0\u1eddng \u0110\u1ea1i Kim, Qu\u1eadn Ho\u00e0ng Mai, H\u00e0 N\u1ed9i<\/strong><\/p>\n

Mua b\u00e1n, l\u1eafp \u0111\u1eb7t, c\u00e0i \u0111\u1eb7t, s\u1eeda ch\u1eeda Bi\u1ebfn t\u1ea7n v\u00e0 c\u00e1c thi\u1ebft b\u1ecb t\u1ef1 \u0111\u1ed9ng h\u00f3a<\/u><\/strong><\/p>\n

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