This paper presents a pulse design method for synchronous PWM that considers motor current control. Several existing design methods that account for the fundamental and harmonics components of the inverter output voltage have been reported. However, our research reveals that these conventional methods can lead to an unexpected increase in current harmonics. This paper clarifies that this issue arises from the voltage transfer characteristics between the voltage reference and the inverter output. Based on this analysis, we propose new design guidelines for Synchronous PWM. The propose method fully satisfies these guidelines, and its effectiveness is verified through simulation and experimental results.
Furutani et al. (Tue,) studied this question.
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