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提出了两种均衡三级电压源逆变器直流侧电容电压控制方法 ,并进行比较 ,认为开关函数正负半波采用不同的移相角的控制方法与采用不同的调制系数的控制方法 ,都可以达到均衡三级电压源逆变器直流侧电容电压的目的 ,且后者更为可靠。
Two kinds of balanced three-phase voltage source DC link capacitor voltage control methods are proposed and compared. It is considered that the control method of different phase shift angles and different modulation factor control methods are used for the positive and negative half-wave of the switching function. The purpose of equalizing the DC side capacitor voltage of the three-level voltage source inverter can be achieved, and the latter is more reliable.