三相四线制APF支撑电容电压脉动分析与设计  

Analysis and Design of Three-phase Four-wire APF Support Capacitor Voltage Pulsation

作　　者：郑小朋 李二伟 钱明 王琰琳 ZHENG Xiao-peng;LI Er-wei;QIAN Ming;WANG Yan-lin(School of Rail Transit,Anhui Vocational College of City Management,Hefei 230011,China;Haining Power Supply Company,State Grid Zhejiang Electric Power Co.,Ltd.,Haining 314400,Zhejiang,China)

机构地区：[1]安徽城市管理职业学院轨道交通学院,安徽合肥230011 [2]国网浙江省电力有限公司海宁市供电公司,浙江海宁314400

出　　处：《兰州文理学院学报（自然科学版）》2024年第4期49-53,共5页Journal of Lanzhou University of Arts and Science(Natural Sciences)

基　　金：2022年度安徽省高等学校省级质量工程项目(2022ptjs001);2023年度安徽省高校自然科学研究重点项目(2023AH051501)。

摘　　要：为保证有源电力滤波器交流侧输出相电压的准确性,有效进行谐波跟踪补偿,提升电能质量,直流侧母线电压必须保持足够稳定,因此直流侧电容容值合理取值至关重要.为此,本文综合考虑母线电压取值、电容纹波电流与电容损耗等限制因素,基于瞬时功率平衡推导出针对于三相四线制母线支撑电容容量设计方法,在有效抑制直流侧电压波动维持补偿性能的同时避免母线电容过取值,降低硬件成本,实验结果证明了所提方法的有效性.In order to ensure the accuracy of the output phase voltage of the AC side of the active power filter,to effectively carry out harmonic tracking compensation and to improve power quality,the bus voltage on the DC side must be kept sufficiently stable and the reasonable value of the capacitance on the DC side is crucial.The design method of bus support capacitor capacity is derived based on instantaneous power balancing,taking into account the constraints of bus voltage,capacitor ripple current and capacitance loss,to effectively suppress voltage fluctuations on the DC side and maintain compensation performance,while avoiding bus capacitor overdrawing and reducing hardware costs,and the effectiveness of the proposed design method is verified by simulation and experiment.

关 键 词：有源电力滤波器 母线电压 电容损耗 瞬时功率 电容容量 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM46