摘要
针对三相电压源型PWM整流器中使用的传统PI控制动态响应慢和抗干扰性能差等缺点,提出一种新型双闭环控制策略。在传统PI控制策略基础上,增加电流指令计算的新方法,基于瞬时功率理论,通过有功功率和无功功率计算得到有功电流指令值。并在MATLAB/Simulink环境下搭建三相PWM整流器的系统仿真模型,将两种不同控制策略进行对比分析。仿真结果表明,相比于传统PI控制策略,新型双闭环控制策略在启动上升、状态切换过程都有很好的动、静态效果,并且具有很强的抗干扰和自适应能力。
Aiming at the shortcomings of slow dynamic response and poor anti-interference performance of traditional PI control used in the three-phase voltage-source PWM rectifier, a new double closed-loop control strategy was proposed. Based on the traditional PI control strategy, a new method for calculating the current command was added. Based on the instantaneous power theory, the active current command value was obtained through the calculation of active power and reactive power. A simulation model of three-phase PWM rectifier system was built in MATLAB/Simulink environment, and two different control strategies were compared and analyzed. The simulation results show that compared with the traditional PI control strategy, the new double closed-loop control strategy has good dynamic and static effects in the process of starting up and state switching, and has strong anti-interference and adaptive capabilities.
作者
郎佳红
李浩
张为民
舒莹
马振亚
郑诗程
LANG Jiahong;LI Hao;ZHANGWeimin;SHU Ying;MAZhenya;ZHENG Shicheng(School of Electrical and Information Engineering,Anhui University of Technology,Ma’anshan 243032,China;Hefei WIN Power Co.Ltd.,Hefei 230000,China)
出处
《安徽工业大学学报（自然科学版）》
CAS
2019年第4期352-359,共8页
Journal of Anhui University of Technology（Natural Science）
基金
安徽省自然科学研究重点项目(KJ2017A044)。
关键词
PWM整流器
新型双闭环
电流指令计算
传统PI控制
空间矢量脉宽调制
PWM rectifier
new double closed-loop
current command calculation
traditional PI control
space vector pulse width modulation
