基于复合控制算法的车载充电机谐波抑制研究  

Research on harmonic suppression of vehicle charger based on compound control algorithm

作　　者：陈丽 王淑旺[1] 洪义平 CHEN Li;WANG Shuwang;HONG Yiping(School of Mechanical Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学机械工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2022年第10期1310-1314,共5页Journal of Hefei University of Technology：Natural Science

基　　金：国家重点研发计划资助项目(2018YFB0104605);安徽省科技重大专项资助项目(17030901062)。

摘　　要：充电机是电动汽车系统的重要组成部分,但在充电过程中由整流侧直流脉动分量引起的谐波会降低充电效率,影响充电机使用寿命。文章对充电机的Buck系统建立小信号模型,并基于该模型设计前馈比例积分加比例谐振的复合控制策略来降低充电过程中谐波的影响。仿真与实验分析结果表明,该文提出的控制策略能有效抑制充电过程中产生的谐波。The charger is an important part of the electric vehicle system, but due to the harmonics caused by the DC pulsating component on the rectifier side during the charging process, the charging efficiency is reduced and the service life of the charger is also affected. In this paper, a small signal model is established for the Buck system of the charger, and a compound control strategy of feedforward proportional integral plus proportional resonance is designed based on this model to reduce the influence of harmonics in the charging process. Through simulation and experimental analysis, it is proved that the control strategy proposed in this paper can effectively suppress the harmonics generated during the charging process.

关 键 词：电动汽车 充电机 小信号模型 复合控制 谐波抑制 

分 类 号：TM910.6[电气工程—电力电子与电力传动]