基于PCHD模型的LCL型APF自适应模糊无源控制策略  

Adaptive Fuzzy Passive Control Strategy of LCL-type APF Based on Port Controlled Hamilton with Dissipation Model

作　　者：吉晓帆 张代润[1] 周驭涛 黄伟[1] 陶聪 JI Xiaofan;ZHANG Dairun;ZHOU Yutao;HUANG Wei;TAO Cong(School of Electric Power Engineering,Sichuan University,Chengdu 610065,Sichuan,China)

机构地区：[1]四川大学电气工程学院,四川成都610065

出　　处：《电气传动》2021年第23期53-59,共7页Electric Drive

摘　　要：有源电力滤波器(APF)是治理电力系统中谐波的重要手段。为了改善有源电力滤波器补偿电网侧电流的效果,提出了一种基于端口受控耗散哈密尔顿(PCHD)模型的APF的无源控制方法。首先,建立了LCL型APF系统的PCHD模型,并采用了易于实现的互联阻尼配置无源控制(IDA-PBC)方法设计无源控制器,验证了所设计控制器的稳定性。同时对直流侧电压采用模糊控制,以期提高稳定电压的能力。此外,采用了正弦幅值积分器(SAI)来获得谐波电流的基波成分,用来避免使用低通滤波器检测谐波带来的延迟。在Matlab/Simulink中构建系统的无源控制方法,仿真结果表明了所提控制方法的可行性与有效性。Active power filter(APF)is an important means to control harmonics in power system.In order to improve the compensation effect of APF for grid side current,a passive control method of APF based on port controlled Hamilton with dissipation(PCHD)model was proposed.First,the PCHD model of LCL-type APF system was established,and the interconnection and damping assignment passivity-based control(IDA-PBC)method which is easy to implement was used to design the passive controller,which proved the stability of the controller.At the same time,in order to improve the stability of voltage capacity,the fuzzy control was used for the DC side voltage.In addition,in order to avoid the delay caused by the harmonic detection using the low-pass filter,sine amplitude integrator(SAI)was used to obtain the fundamental component of the harmonic current.The passive control method of the system was built in Matlab/Simulink.The simulation results show the feasibility and effectiveness of the proposed control method.

关 键 词：有源电力滤波器 无源控制 模糊控制 端口受控耗散哈密尔顿 

分 类 号：TM727[电气工程—电力系统及自动化]