用于HAPF的自适应谐振抑制方法研究  

Research on Adaptive Resonance Suppression Method for HAPF

作　　者：谈竹奎 徐玉韬 王一[2] 徐长宝 桂军国 林呈辉 Tan Zhukui;Xu Yutao;Wang Yi;Xu Changbao;Gui Junguo;Lin Chenghui(Electric Power Research Institute,Guizhou Power Grid Co.,Ltd.,Guiyang Guizhou 550002,China;Beijing Sifang Jibao Automation Co.,Ltd.,Beijing 100085,China)

机构地区：[1]贵州电网有限责任公司电力科学研究院,贵州贵阳550002 [2]北京四方继保自动化股份有限公司,北京100085

出　　处：《电气自动化》2018年第4期88-91,共4页Electrical Automation

基　　金：中国南方电网公司重点科技项目"城市配电网柔性互联关键设备及技术的研究"(GZKJQQ00000417)

摘　　要：研究了由并联型有源电力滤波器(Parallel Active Power Filter,PAPF)和并联电容器组成的混合补偿系统的稳定性。分析表明,当PAPF检测电流中包含并联电容器电流时,会引发混合补偿系统谐振,电网系统阻抗的分流特性是造成混合补偿系统谐振的根本原因。实际工程应用中负载电流包含电容电流的情况不可避免,在不增加硬件采样回路的情况下,提出自适应检测系统阻抗分布的算法,并用于PAPF控制策略的改进,使混合补偿系统稳定运行。试验结果证明了方法的有效性。A study was made on the stability of the hybrid compensation system composed of the parallel active power filter（ PAPF） and parallel capacitor. Analysis results indicated that resonance would occurin the hybrid compensation system if PAPF detection current contained the current of the parallel capacitor,and that resistance shunting characters of the power system was the fundamental cause for the resonance in the hybrid compensation system. In practical engineering applications,load current inevitably contains capacitor current.An adaptive detection system impedance distribution algorithm was proposed without adding any hardware sampling circuit. The proposed algorithm was applied to improve PAPF control strategy for stable operation of the hybrid compensation system. Results of physical experimentshave verified the effectiveness of the proposed approach.

关 键 词：混合补偿系统 电流外环控制 阻抗分流 自适应检测 谐振抑制 

分 类 号：TM712[电气工程—电力系统及自动化]