升压变压器对阻性有源滤波器端口阻抗的影响分析及补偿策略  

Influence analysis of step-up transformer on port impedance of resistive active filter and compensation strategy

作　　者：覃日升 况华 姜訸 于辉 李虹 万明凯 李磊[5] 雷万钧[5] QIN Risheng;KUANG Hua;JIANG He;YU Hui;LI Hong;WAN Mingkai;LI Lei;LEI Wanjun(Electric Power Science Research Institute,Yunnan Power Grid Co.,Ltd.,Kunming 650217,China;Yunnan Power Grid Co.,Ltd.,Kunming 650011,China;Honghe Power Supply Bureau,Yunnan Power Grid Co.,Ltd.,Honghe 661400,China;Dali Power Supply Bureau,Yunnan Power Grid Co.,Ltd.,Dali 672600,China;School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]云南电网有限责任公司电力科学研究院,云南昆明650217 [2]云南电网有限责任公司,云南昆明650011 [3]云南电网有限责任公司红河供电局,云南红河661400 [4]云南电网有限责任公司大理永平供电局,云南大理672600 [5]西安交通大学电气工程学院,陕西西安710049

出　　处：《电工电能新技术》2025年第2期13-23,共11页Advanced Technology of Electrical Engineering and Energy

基　　金：国家重点研发计划项目(2018YFB0905800)。

摘　　要：随着电力系统的“双高”特征越来越明显,谐波污染的问题越来越受到大家的关注。面向传输线路上的谐波谐振放大现象,阻性有源滤波器(RAPF)可以很好地抑制这种情况。为了进行电压匹配,通常需要在RAPF和配电网之间串联升压变压器,但由于变压器的结构会给原有控制带来一定的影响,导致谐波抑制的效果被减弱,因此,分析得到变压器在谐波传输中的等效模型并补偿变压器对控制的影响十分有必要。本文首先分析并建立了在谐波传输下的变压器等效模型,然后分析了其对电流控制的影响机理,最后提出了补偿策略,消除了变压器对控制的影响并提高了RAPF抑制谐波的能力。The problem of harmonic pollution has attracted more and more attention as the‘double high’characteristics of the power system becoming more and more obvious.For the harmonic resonance amplification phenomenon on the transmission line,the resistive active filter(RAPF)can well suppress this situation.It is usually necessary to connect the step-up transformer in series between the RAPF and the distribution network in order to match the voltage.However,the structure of the transformer will have a certain impact on the original control,which will lead to the weakening of the harmonic suppression effect.Therefore,it is necessary to analyze the equivalent model of the transformer in the harmonic transmission and compensate the influence of the transformer on the control.In this paper,the equivalent model of transformer under harmonic transmission is analyzed and established,and then its influence mechanism on current control is analyzed.Finally,a compensation strategy is proposed to eliminate the influence of transformer on control and improve the ability of RAPF to suppress harmonics.

关 键 词：阻性有源滤波器 变压器谐波模型 电流控制 

分 类 号：TM464[电气工程—电器]