有源电力滤波器的滤波和无功补偿方法研究  

Research on Filtering and Reactive Power Compensation Methods of Active Power Filters

作　　者：毛以平 董博 夏晟 裘鑫 王善杰 MAO Yiping;DONG Bo;XIA Sheng;QIU Xin;WANG Shanjie(State Grid Zhejiang Ningbo Fenghua District Power Supply Company,Ningbo 315000,China;School of Electronics and Information Engineering,Shanghai Electric Power University,Shanghai 200000,China)

机构地区：[1]国网浙江宁波市奉化区供电有限公司,浙江宁波315000 [2]上海电力大学电子与信息工程学院,上海200000

出　　处：《自动化仪表》2022年第3期55-59,64,共6页Process Automation Instrumentation

摘　　要：为克服电网电压不平衡或失真时锁相环(PLL)性能较差的局限性,提出了基于自适应神经网络逻辑控制的p-q理论,在一定范围内降低总谐波失真。针对有源电力滤波器三相感应电流和参考电流的电流误差,提出基于PLL规则的无载波脉冲宽度调制(PWM)电流控制技术,将选通信号传输到电压型逆变器(VSI)桥的绝缘栅双极晶体管(IGBT)。为确保训练效率,在训练过程中使用Widrow-Hoff规则进行权值调整。同时,设计了一种并联型有源电力滤波器(APF)拓扑,以实现谐波电流阻尼和无功补偿。在Matlab中的Simulink模块下建立了仿真模型。通过仿真分析,证明了控制器的性能和基准生成的准确性,表明所提方法对有源电力滤波器谐波和无功补偿的发展具有积极推动作用。To overcome the limitation of poor performance of phase-locked loop(PLL)when the grid voltage is unbalanced or distorted,the p-q theory based on adaptive neural network logic control is proposed to reduce the total harmonic distortion within a certain range.For the current error of the three-phase induced and reference currents of the active power filter,a carrier-free pulse width modulation(PWM)current control technique based on the PLL rule is proposed to transmit the selective signals to the insulated gate bipolar transistor(IGBT)of the voltage source inverter(VSI)bridge.To ensure the training efficiency,Widrow-Hoff rule is used to adjust the weights during the training process.Also,a shunt-type active power filter(APF)topology is designed to achieve harmonic current damping and reactive power compensation.The simulation model is built under the Simulink module in Matlab.Through simulation analysis,the results prove the performance of the controller and the accuracy of the benchmark generation,and show that the proposed method has a positive contribution to the development of harmonic and reactive power compensation for active power filters.

关 键 词：有源电力滤波器 不平衡 谐波 无功补偿 锁相环 p-q理论 自适应神经网络 拓扑 

分 类 号：TH-39[机械工程]