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Invention Grant
CN106533228B 五电平逆变电路的PWM控制方法、控制电路以及逆变器 有权

五电平逆变电路的PWM控制方法、控制电路以及逆变器
Abstract:
本发明提供的五电平逆变电路的PWM控制方法，应用于五电平逆变电路，该五电平逆变电路包括第一电容、第二电容、第三电容以及八个开关支路，本控制方法通过将控制逻辑设置成第一开关支路与第四开关支路互补导通，第二开关支路与第五开关支路互补导通，第三开关支路与第六开关支路互补导通，第七开关支路与第八开关支路互补导通，并且，将第一开关支路与第二开关支路进行互锁，将第六开关支路以及第五开关支路进行互锁，使得五电平逆变电路工作在稳态下，此时，第一电容、第二电容以及第三电容均不会出现由于某些开关支路同时导通时导致电容短路的问题。
Abstract(English):

A pulse width modulation, PWM, control method for a five-level inverting circuit is provided. The five-level inverting circuit includes a first capacitor, a second capacitor, a third capacitor and first to eighth switch branches. In this PWM control method, the control logic is set to enable the first and fourth switch branches to be turned on in a complementary manner, the second and fifth switch branches to be turned on in a complementary manner, the third and sixth switch branches to be turned on in a complementary manner, and the seventh and eighth switch branches to be turned on in a complementary manner, and enable the first and second switch branches to be turned on in an interlocking manner, and the sixth and fifth switch branches to be turned on in an interlocking manner.

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