{"id":710924,"date":"2024-10-29T11:52:27","date_gmt":"2024-10-29T10:52:27","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=710924"},"modified":"2024-10-29T11:52:27","modified_gmt":"2024-10-29T10:52:27","slug":"dieu-khien-dong-co-bang-bien-tan-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/dieu-khien-dong-co-bang-bien-tan-nhu-the-nao\/","title":{"rendered":"\u0110i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 b\u1eb1ng bi\u1ebfn t\u1ea7n nh\u01b0 th\u1ebf n\u00e0o"},"content":{"rendered":"

\u0110i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 b\u1eb1ng bi\u1ebfn t\u1ea7n nh\u01b0 th\u1ebf n\u00e0o: H\u01b0\u1edbng d\u1eabn c\u00e1ch s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u1ed9ng c\u01a1 trong h\u1ec7 th\u1ed1ng nhi\u1ec7t.<\/p>\n

\"\u0110i\u1ec1u<\/p>\n

\u0110i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 b\u1eb1ng bi\u1ebfn t\u1ea7n nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n

Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, vi\u1ec7c \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u1ed9ng c\u01a1 l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng. M\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u n\u00e0y l\u00e0 s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n. V\u1eady bi\u1ebfn t\u1ea7n l\u00e0 g\u00ec v\u00e0 n\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1? H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u trong b\u00e0i vi\u1ebft n\u00e0y.<\/p>\n

Bi\u1ebfn t\u1ea7n l\u00e0 g\u00ec?<\/h2>\n

Bi\u1ebfn t\u1ea7n, hay c\u00f2n g\u1ecdi l\u00e0 b\u1ed9 bi\u1ebfn t\u1ea7n (Inverter), l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u00f3 kh\u1ea3 n\u0103ng bi\u1ebfn \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u (AC) t\u1eeb t\u1ea7n s\u1ed1 v\u00e0 \u0111i\u1ec7n \u00e1p c\u1ed1 \u0111\u1ecbnh sang d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u v\u1edbi t\u1ea7n s\u1ed1 v\u00e0 \u0111i\u1ec7n \u00e1p c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh. Nh\u1edd v\u00e0o t\u00ednh n\u0103ng n\u00e0y, bi\u1ebfn t\u1ea7n c\u00f3 th\u1ec3 thay \u0111\u1ed5i \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n xoay chi\u1ec1u m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 ch\u00ednh x\u00e1c.<\/p>\n

C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a bi\u1ebfn t\u1ea7n<\/h2>\n

Bi\u1ebfn t\u1ea7n ho\u1ea1t \u0111\u1ed9ng th\u00f4ng qua ba giai \u0111o\u1ea1n ch\u00ednh:<\/p>\n

    \n
  1. Chuy\u1ec3n \u0111\u1ed5i AC sang DC: D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u t\u1eeb ngu\u1ed3n \u0111i\u1ec7n \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (DC) nh\u1edd m\u1ed9t b\u1ed9 ch\u1ec9nh l\u01b0u (rectifier).<\/li>\n
  2. \u0110i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n \u00e1p DC: \u0110i\u1ec7n \u00e1p DC sau \u0111\u00f3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh th\u00f4ng qua m\u1ed9t b\u1ed9 l\u1ecdc \u0111\u1ec3 l\u00e0m m\u01b0\u1ee3t d\u00f2ng \u0111i\u1ec7n.<\/li>\n
  3. Chuy\u1ec3n \u0111\u1ed5i DC tr\u1edf l\u1ea1i AC: \u0110i\u1ec7n \u00e1p DC \u0111\u01b0\u1ee3c bi\u1ebfn \u0111\u1ed5i tr\u1edf l\u1ea1i d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u v\u1edbi t\u1ea7n s\u1ed1 v\u00e0 \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u ch\u1ec9nh th\u00f4ng qua m\u1ed9t b\u1ed9 ngh\u1ecbch l\u01b0u (inverter).<\/li>\n<\/ol>\n

    T\u00e1c \u0111\u1ed9ng c\u1ee7a bi\u1ebfn t\u1ea7n l\u00ean \u0111\u1ed9ng c\u01a1<\/h2>\n

    Bi\u1ebfn t\u1ea7n gi\u00fap \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i t\u1ea7n s\u1ed1 v\u00e0 \u0111i\u1ec7n \u00e1p cung c\u1ea5p cho \u0111\u1ed9ng c\u01a1, t\u1eeb \u0111\u00f3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 v\u00e0 m\u00f4-men xo\u1eafn c\u1ee7a \u0111\u1ed9ng c\u01a1. C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n li\u00ean quan \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 (n) l\u00e0:<\/p>\n

    n = \\frac{120 * f}{P}<\/em><\/p>\n

    Trong \u0111\u00f3:<\/p>\n

      \n
    • n<\/strong>: T\u1ed1c \u0111\u1ed9 quay c\u1ee7a \u0111\u1ed9ng c\u01a1 (v\u00f2ng\/ph\u00fat)<\/li>\n
    • f<\/strong>: T\u1ea7n s\u1ed1 d\u00f2ng \u0111i\u1ec7n cung c\u1ea5p (Hz)<\/li>\n
    • P<\/strong>: S\u1ed1 c\u1ef1c c\u1ee7a \u0111\u1ed9ng c\u01a1<\/li>\n<\/ul>\n

      B\u1eb1ng c\u00e1ch thay \u0111\u1ed5i t\u1ea7n s\u1ed1 f<\/em> th\u00f4ng qua bi\u1ebfn t\u1ea7n, t\u1ed1c \u0111\u1ed9 quay c\u1ee7a \u0111\u1ed9ng c\u01a1 n<\/em> c\u0169ng s\u1ebd thay \u0111\u1ed5i t\u01b0\u01a1ng \u1ee9ng. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9ng c\u01a1 m\u1ed9t c\u00e1ch m\u1ec1m m\u1ea1i v\u00e0 ch\u00ednh x\u00e1c theo y\u00eau c\u1ea7u.<\/p>\n

      \u01afu \u0111i\u1ec3m c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n<\/h2>\n

      Vi\u1ec7c s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch nh\u01b0:<\/p>\n

        \n
      • Ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng: Gi\u1ea3m \u0111\u00e1ng k\u1ec3 l\u01b0\u1ee3ng \u0111i\u1ec7n ti\u00eau th\u1ee5 so v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n th\u1ed1ng.<\/li>\n
      • \u0110i\u1ec1u ch\u1ec9nh m\u1ec1m m\u1ea1i: Gi\u1ea3m thi\u1ec3u c\u00e1c c\u00fa s\u1ed1c c\u01a1 h\u1ecdc v\u00e0 \u0111i\u1ec7n khi kh\u1edfi \u0111\u1ed9ng ho\u1eb7c d\u1eebng \u0111\u1ed9ng c\u01a1.<\/li>\n
      • T\u0103ng hi\u1ec7u su\u1ea5t: Gi\u00fap \u0111\u1ed9ng c\u01a1 ho\u1ea1t \u0111\u1ed9ng \u1edf hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9 theo t\u1ea3i.<\/li>\n
      • T\u0103ng tu\u1ed5i th\u1ecd c\u1ee7a \u0111\u1ed9ng c\u01a1: Gi\u1ea3m thi\u1ec3u hao m\u00f2n nh\u1edd v\u00e0o vi\u1ec7c \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 m\u1ed9t c\u00e1ch m\u1ec1m m\u1ea1i v\u00e0 ch\u00ednh x\u00e1c.<\/li>\n<\/ul>\n

        Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng th\u00f4ng tin c\u01a1 b\u1ea3n v\u1ec1 c\u00e1ch \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 b\u1eb1ng bi\u1ebfn t\u1ea7n. Hy v\u1ecdng b\u00e0i vi\u1ebft \u0111\u00e3 gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00f4ng c\u1ee5 h\u1eefu \u00edch n\u00e0y v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 trong k\u1ef9 thu\u1eadt nhi\u1ec7t.<\/p>\n","protected":false},"excerpt":{"rendered":"

        \u0110i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 b\u1eb1ng bi\u1ebfn t\u1ea7n nh\u01b0 th\u1ebf n\u00e0o: H\u01b0\u1edbng d\u1eabn c\u00e1ch s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u1ed9ng c\u01a1 trong h\u1ec7 th\u1ed1ng nhi\u1ec7t.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"\n\u0110i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 b\u1eb1ng bi\u1ebfn t\u1ea7n nh\u01b0 th\u1ebf n\u00e0o<\/title>\n<meta name=\"description\" content=\"\u0110i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 b\u1eb1ng bi\u1ebfn t\u1ea7n nh\u01b0 th\u1ebf n\u00e0o: H\u01b0\u1edbng d\u1eabn c\u00e1ch s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u1ed9ng c\u01a1 trong 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