摘要
提出了一种适用于微网中进行谐波补偿的有源滤波器抗扰动控制新方法。首先,基于非正弦交流电路中扩展的欧姆定律对有源滤波器的三相输出滤波器等效电阻和等效电感参数进行在线实时检测;然后,将实测的等效电阻和等效电感参数送入到有源电力滤波器的控制器中更新相应的控制参数,实现有源滤波器抗滤波器参数扰动控制。同时,在有源滤波器电压控制外环引入自抗扰控制,实现有源滤波器直流电压的抗干扰控制。仿真结果表明:提出的方法可以提升有源电力滤波器的稳定性,提高有源电力滤波器的谐波补偿精度,改善了有源电力滤波器直流电压的暂态响应特性。
This paper presents a new method for the APF disturbance rejection control suitable for the harmonics compensation in microgrid.Firstly,based on the expanded Ohm＇s Law in non-sinusoidal AC circuit,the BAOF equivalent inductance and resistance parameters of the APF are received an on-line real-time detection.Then,the controlling parameters of the APF＇controller are replaced by the detected equivalent inductance and resistance parameters,thus realizing the disturbance rejection control of the APF on the filter parameter.Further,the disturbance rejection control of the APF is implemented on the DC-link voltage by introducing the active disturbance rejection control into the outer voltage control loop of the APF.The simulation results demonstrate that the presented method can enhance the stability of the APF,the accuracy of its harmonics compensation and the transient response characteristics of the DC-link voltage control in APF.
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2018年第1期14-21,共8页
Journal of North China Electric Power University：Natural Science Edition
基金
国家高技术研究发展计划(863计划)项目(2015AA050102)
国家自然科学基金资助项目(513111122)
关键词
有源滤波器
谐波补偿
自抗扰控制
在线检测
滤波器
微网
active power filter
harmonics compensation
active disturbance rejection control
on-line detection
filter
microgrid
