Research on relations between two PWM technologies and system performance optimization

摘要

Pulse width modulation (PWM) technology is one of the key issues of power electronic circuit control. Sine pulse width modulation (SPWM) and space vector pulse width modulation (SVPWM) are the most popular PWM strategies. In this paper, the relationship between SPWM and SVPWM is analyzed in two aspects, one is the modulation-wave equivalence, and the other is the acting time equivalence, system performance optimization is also analyzed under the two kinds of equivalence. Simulation and experiment results are given to validate the theoretical analysis.