期刊
2020 IEEE 21ST WORKSHOP ON CONTROL AND MODELING FOR POWER ELECTRONICS (COMPEL)
卷 -, 期 -, 页码 1240-1246出版社
IEEE
DOI: 10.1109/compel49091.2020.9265661
关键词
Model predictive control (MPC); active power filter; parallel hybrid converter; SiC-MOSFET; Si-IGBT; common mode; differential mode; weighting factors; zero sequence circulating current; three-phase inductor; common mode choke (CMC)
This paper presents an investigation of different output filter topologies for the parallel hybrid converter (PHC), an AC-DC converter which employs dual SiC-MOSFET and Si-IGBT bridges. Building on previous work a Finite Control Set Model Predictive Control (FCS-MPC) algorithm which simultaneously control the switching of both converters to achieve gains in efficiency and power quality with minimal use of expensive SiC devices. This paper analyses the effect of the filter topology, MPC cost function constraints and output filter inductance ratio on the common mode current, average Si switching frequency and electrical power quality measured by total current harmonic distortion (THD) in point of common coupling (PCC). This paper achieves the reduction of Si switching frequency bounded to a THD of 2 %. Finally, an inter-converter common mode voltage constraint is implemented to address the zero sequence circulating current.
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