Analysis of nonlinear oscillation of four-quadrant converter based on discrete describing function approach

IEICE Electronics Express

Zhongping Yang¹  Hu Sun¹  Fei Lin¹  Shihui Liu¹ 

[1] School of Electrical Engineering, Beijing Jiaotong University

关键词: four-quadrant converter;    nonlinear oscillation;    current control;    describing function;   

DOI  :  10.1587/elex.13.20160550

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(16)The mechanism and characteristic of current oscillation of four-quadrant converter with predictive current controller caused by nonlinear characteristic of the system is analyzed in the paper. With the discrete model considering the digital control delay of the single-phase four-quadrant converter, the stability condition is derived. Using the describing function of saturation characteristic, the frequency and amplitude of the nonlinear oscillation is obtained. The simulation and experiment results verify the analyses.

【 授权许可】

Unknown