• 基本释义

1.<abstract>e frequency conversion with PWM is the main timing way of asynchronism motor now. It can chang the frequence blow 50Hz and set up V/ F as a the invariablenes value, also namely invariablenes moment export.
PWM变频调速已成为异步电机最主要的调速方法,变频器在50Hz以下,设定V／F为一恒定值,也即恒力矩输出。收藏指正
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