所收录的方法涵盖异步电机调速的各种方式，包括VVVF、直接或间接矢量控制、直接转矩控制，甚至软启动。
The methods discussed cover all speed control schemes, including VVVF, direct or indirect vector control, direct torque control and soft start.
所收录的方法涵盖异步电机调速的各种方式，包括VVVF、直接或间接矢量控制、直接转矩控制，甚至软启动。
The methods discussed cover all speed control schemes, including VVVF, direct or indirect vector control, direct torque control and soft start.
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