2022 Volume 142 Issue 11 Pages 825-834
This paper proposes a passive common-noise canceller (PCC) capable of cancelling the common-mode voltage generated by voltage source inverters. The proposed canceller is characterized by its simple circuit configuration consisting of only passive elements; three common-mode transformers and Y-capacitors are used. The basic principle and characteristics of the PCC are described in this paper. Two prototypes, i.e., a through-type PCC and a wound-type PCC, are constructed and tested. The experimental results with a voltage source PWM inverter using SiC-MOSFETs show that the two PCCs can suppress the CM voltage even in a frequency band up to several MHz, and that iron losses in the magnetic core can cause a temperature rise in the PCCs.
The transactions of the Institute of Electrical Engineers of Japan.C
The transactions of the Institute of Electrical Engineers of Japan.B
The transactions of the Institute of Electrical Engineers of Japan.A
The Journal of the Institute of Electrical Engineers of Japan