摘要
针对PWM整流充电机网侧电流谐波抑制方法控制效果不理想的问题,提出复合重复控制（PIRC）策略。在建立PWM整流充电机数学模型和分析谐波特性的基础上,分析了传统PI控制存在的问题,根据模型,设计了PIRC复合重复控制器,并在MATLAB/Simulink环境下搭建单相PWM整流充电机仿真模型,分别对PIRC控制和PI控制进行了仿真分析,然后采用TMS320F2812作为控制器,在样机上对该两种控制方案进行了实验验证。仿真和实验结果表明采用PIRC方案当重复控制增益Krc=0.3时,充电机网侧电流THD从传统PI控制的7.43%下降到2.79%,验证了PIRC控制策略抑制充电机网侧电流中奇次谐波的有效性。
For the less effectiveness of conventional harmonic suppression methods in PWM rectifier charger networkside current,this paper proposes the proportional integral repetitive control（PIRC）scheme.At the basis of establishing the mathematical model and analyzing the harmonic characteristics,the problems of conventional PI control is discussed,then the PIRC controller is designed.And the simulation model of single-phase PWM rectifier charger is set up by MATLAB/Simulink,PIRC and PI control is simulated and analyzed respectively,then the two control schemes are verified experimentally on the experiment equipment with TMS320 F2812 controller.The results show that comparing with conventional PI control when the repetitive control gain is Krc=0.3,the THD for network-side current of the charger decreased from 7.43% to 2.79% by using the PIRC scheme.And the validity of PIRC control to suppress the odd-harmonics current in the charger network-side is verified.
作者
梁芬
赵强松
Liang Fen;Zhao Qiangsong(College of Information ＆ Business, Zhongyuan University of Technology, Zhengzhou 450007, China;School of Electronic Information Zhongyuan University of Technology, Zhengzhou 450007, China;College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)
出处
《电子测量技术》
2018年第6期1-5,共5页
Electronic Measurement Technology
基金
河南省高等学校重点科研项目(17A413015)
河南省科技攻关项目(162102210323)资助
