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变频调速时,为什么常采用恒压频比的控制方式?

问答题
2022-03-23 19:04
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正确答案

交流电动机在变频调速时,若保持U1/f1=常数,可以使电动机的气隙磁通Φ维持不变,而是电动机的输出转矩T保持恒定,从而获得恒转矩的调速特性。


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