电气传动2025，Vol.55Issue(3)：3-12,10.DOI:10.19457/j.1001-2095.dqcd25174
四象限整流器宽频建模与差频振荡分析
Broadband Modeling of Four-quadrant Rectifier and Differential Frequency Oscillation Analysis
王颖杰 1周海兰 1陈永发 1白飞莹1
作者信息
- 1. 中国矿业大学电气工程学院,江苏徐州 221000
- 折叠
摘要
Abstract
When the switching frequency of the four-quadrant rectifiers in different multiple units deviates,the current will experience low-frequency oscillation,which is not conducive to the operation of the traction power grid.Therefore,a matrix small-signal modeling method for SPWM comparators was proposed to analyze this issue,which achieves a more accurate description of the switching frequency characteristics of the single-phase PWM rectifier.Then,the matrix small-signal modeling of parallel four-quadrant rectifiers was further established,and then the model was used to analyze the causes and rules of differential frequency oscillation during mixed running of different multiple units.Finally,the correctness of the established model and analysis conclusions were verified through experiments.关键词
四象限整流器/牵引电网/矩阵小信号模型/差频振荡Key words
four-quadrant rectifier/traction power grid/matrix small-signal model/differential frequency oscillation分类
动力与电气工程引用本文复制引用
王颖杰,周海兰,陈永发,白飞莹..四象限整流器宽频建模与差频振荡分析[J].电气传动,2025,55(3):3-12,10.
