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What is DC-Link Current Ripple in Multiphase Inverters about?

This paper presents an analytical model for calculating the dc-link RMS current ripple in multiphase PWM inverters, emphasizing the impact of the number of phases on current reduction. The study shows that increasing the number of phases mitigates harmonics and reduces RMS current, particularly when exceeding three phases, with diminishing returns beyond eleven phases. The findings are crucial for optimizing the design of dc-link capacitors in high-power density powertrain systems.

Author

Hamid Hamza

Language

EN