The general frequency converter usually uses the AC-DC-AC mode to convert the power frequency alternating current into three-phase AC with adjustable frequency and voltage, that is, the power frequency alternating current at the power grid side is first rectified into direct current, and then the direct current is converted into the alternating current with controllable frequency and voltage.( )
选项:
A:对
B:错
发布时间:2024-05-21 15:25:12