摘要
为减小开关变换器电流畸变对电网供电质量的影响,同时提高负载电压的动态响应性能,针对一个实际的单相功率因数校正装置设计改进控制方案。在建立小信号模型的基础上,根据其频域特性设计相应的补偿器,并将电压环控制环节改进为模糊PI控制器。仿真运行结果表明,Boost PFC变换器的输出电压波形得到很好的改善,有效提高了电网供电质量。
In order to reduce the influence of the current distortion of the switching converter on the power supply quality of the power grid and improve the dynamic response performance of the load voltage,an improved control scheme for a practical single-phase power factor correction device is designed in this paper.Based on the establishment of a small signal model,the corresponding compensator is designed according to its frequency domain characteristics,and the controller of the voltage loop is improved to a fuzzy PI controller.The simulation results show that the output voltage of the designed Boost PFC converter has been improved well,and the power supply quality of the power grid is effectively improved.
作者
樊立萍
冯翔
Fan Liping;Feng Xiang(School of Information Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China)
出处
《电测与仪表》
北大核心
2019年第22期121-125,145,共6页
Electrical Measurement & Instrumentation
基金
中国-马其顿政府间科技合作项目(国科外[2017]25:5-5)
辽宁省特聘教授支持计划(辽教发[2014]187号)
