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ZS1052-0620
1. 通过整流电路将交流电源转换为直流电源。
2. 将直流电源送入一个称为中间电压环节的电路,通过调节中间电压环节的电压来改变输出电压的大小。
3. 通过逆变电路将中间电压环节的直流电压转换为可调频率的交流电压,控制交流电机的转速和方向。
在逆变电路中,主要有两种控制方式,即电压控制和频率控制。电压控制是通过控制逆变电路中的开关管通断时间比例来控制输出电压,频率控制则是通过控制逆变电路中的电路谐振频率来控制输出频率。
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