Dead-Time Errors and their Compensations for Three-Phase Voltage-Fed Inverter with Various PWM Schemes

Abstract

In the present study, the authors discuss the dead-time compensation method for two-phase pulse width modulation (PWM) and experimentally verifies its validity. Present results note that two-phase PWM proves to halve the dead-time error compared with the three-phase PWM. Furthermore, the authors verify that the proposed two-phase PWM published previously has very similar characteristics to the conventional two-phase PWM. Therefore, the present results indicate that the compensation voltage for the dead-time error of two-phase PWM is half of the general compensation method.