3-Phase PFC Topology Using Constant Power Control

3-Phase PFC Topology Using Constant Power Control

June 12, 2023

Motor Drives

Higher system efficiency in motion control applications can be achieved by increased use of SiC components. They enable increased switching frequencies and smaller magnetics, but with higher semiconductor costs in power modules. The Current Synthesizing PFC (CSPFC) topology, a type of Power Sink/Source Inverter (PSI), can help reduce the SiC component costs while achieving 99% PFC efficiency. This paper presents results from an experimental hardware prototype, demonstrates the advantages of the topology and explores further theoretical improvements of the Total Harmonic Distortion (THD) through the DC-link capacitor current compensation.

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