Research on simulation of isolated threephase BUCK  rectifier based on PLECS

LI Quanfeng, YAO WenXi, LV Zhengyu
(College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

Abstract: In order to analyzing the isolated threephase BUCK rectifier, the PLECS was used to model. The rule of the isolated threephase BUCK rectifier, commutation problem, ZVS parameter, compensation of duty cycle loss was analyzed, the circuit parameters and the control method were optimized, the solution of the commutation problem and the duty cycle loss compensating problem were proposed, the ZVS parameters were fixed. The isolated threephase BUCK rectifier by PLECS was simulated. The result indicates that the analysis before is successful and the simulation of the switching power circuit by PLECS is capacity. The research results show that the analysis lays the foundation for the further circuits analysis using PLECS.
Key words: PLECS; threephase; BUCK; simulate