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yexingzhe23
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樓主  發(fā)表于: 2017-11-14 14:58
如果一個(gè)15kw的電機是2極的變頻器設置是4極的會(huì )有什么影響
lch8478
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1樓  發(fā)表于: 2017-11-14 15:39
          那要看你的變頻器是什么控制方式,是開(kāi)環(huán)控制(簡(jiǎn)單V/F控制)?還是矢量控制(不管有沒(méi)有PG反饋)、DTC控制(不管有沒(méi)有PG反饋)。矢量控制和DTC控制需要計算電機模型,你如果輸入錯誤參數會(huì )導致電機模型計算錯誤,運行異常。V/F控制則對運行沒(méi)有太大影響,無(wú)非顯示電機轉速不正確。
        成熟產(chǎn)品都會(huì )對你輸入的參數進(jìn)行驗證,比如你輸入正確的額定轉速2840r/min,然后輸入錯誤的電機極數4級,這時(shí)變頻器應該會(huì )檢測出你輸入參數錯誤并報出故障。但不排除有些小眾產(chǎn)品不會(huì )驗證你輸入數據。

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