基于分数阶PI~λ控制器的有源电力滤波器直流侧电压控制  

DC Voltage Control of Active Power Filter Based on Fractional-order PI~λ Controller

作　　者：张小凤[1,2] 王孝洪[1,3] 田联房[1] 孙万里 

机构地区：[1]华南理工大学自动化科学与工程学院,广东省广州市510641 [2]北京理工大学珠海学院,广东省珠海市519088 [3]广东省绿色能源技术重点实验室,广东省广州市510641 [4]珠海艾派克微电子有限公司,广东省珠海市519075

出　　处：《电力系统自动化》2013年第16期108-113,124,共7页Automation of Electric Power Systems

基　　金：广东省重大科技专项(2009A080305004);广州市番禺区科技攻关项目(2010-Z-12-04;2011-Z-02-415);广东省高等学校学科与专业建设专项资金资助项目(粤财教2010-275)~~

摘　　要：直流侧电压的稳定控制是保证有源电力滤波器(APF)性能的关键。文中基于APF直接功率控制系统,给出直流侧电压功率控制模型,提出采用分数阶比例—积分(FO-PIλ)控制器进行直流侧电压稳定控制,采用频域方法设计FO-PIλ控制器,并用来调节直流侧电压的大小和波动,以减少对APF的功率损耗和补偿性能的影响。仿真分析表明:基于FO-PIλ控制器的APF直流侧电压控制具有良好的动态性能和更强的鲁棒性;在负载扰动和电压闪变的情况下直流侧电压仍然稳定,能够快速精确地稳定在给定值;新的控制方案优于传统使用比例—积分(PI)控制的方案。DC voltage control is the key to guaranteeing the performance of active power filter （APF）. A fractional-order PIx （FO-PIa ）controller is proposed to realize the stability control of DC voltage of APF using the DC voltage power model in the direct power control （DPC） system. The FO-PIa controller is designed with the frequency-domain method, and is used to regulate the value and fluctuation of the DC voltage to reduce the bad influence on the power loss and compensation performance of APF. The simulation results show that the DPC system of APF based on the FO-PP controller has good dynamic and robust performance, and the DC voltage remains stable during impulse voltage and load-change. The DC voltage stabilizes at the given value quickly and accurately. The new control strategy is better than that using the traditional PI controller.

关 键 词：有源电力滤波器(APF) 直接功率控制 直流侧电压控制 分数阶控制器 

分 类 号：TM76[电气工程—电力系统及自动化] TN713.8[电子电信—电路与系统]