2DoF Interleaving PWM

Interleaving three-phase voltage source converters (VSCs) is a popular solution for medium- and high-power applications. In addition to the circulating current, the impact of PWM strategies on the DC-link current ripple is an important issue for practical DC-link capacitor designs, which could affect system reliability and lifetime. Existing studies have been reported to evaluate the impact of conventional pulse width modulation (PWM) strategies such as space vector modulation (SVM), sinusoidal PWM (SPWM), and discontinuous PWM (DPWM).