摘要
为改善并联型有源电力滤波器(SAPF)在电网运行中抑制谐波和削弱抖振的能力,提出一种基于改进型的指数趋近律的滑模变结构控制策略,结合滑模变结构控制,引入状态量和饱和函数。建立SAPF仿真模型和实验装置,仿真结果表明:补偿后的电流总畸变下降到3.25%,A相电流趋近于正弦波,通过对比改进前后的控制策略,并且在实验的基础上验证了所提出的策略能够很好地抑制尖峰现象,提高了有源电力滤波器的鲁棒性。
In order to improve the shunt active power filter(SAPF)to suppress the harmonic and weaken the chattering in grid operation,an improved index reaching law variable structure control strategy is put forward,combined with sliding mode variable structure control,introducing the state capacity and saturated function.Establish SAPF simulation model and experimental device.Simulation results show that the current total distortion after compensation decreased to 3.25%,A phase current is close to sine wave,through comparing the control strategy before and after improvement,and verify that the proposed strategy can effectively reduce the peak phenomenon,improve the robustness of active power filter on the basis of experiments.
作者
李鑫
庄佳钰
周朋祥
杨桢
戈勇
LI Xin;ZHUANG Jiayu;ZHOU Pengxiang;YANG Zhen;GE Yong(College of Electrical and Control Engineering,Liaoning Technical University,Huludao 125105,China;Suzhou Branch,State Grid Jiangsu Electric Power Co Ltd,Suzhou 215000,China)
出处
《传感器与微系统》
CSCD
2020年第3期61-63,共3页
Transducer and Microsystem Technologies
基金
辽宁省教育厅基金资助项目(LJYL016)。
