基于Jiles-Atherton逆模型的磁阀式可控电抗器铁心饱和度分析  

Core Saturation Analysis of Magnetic-Valve Controlled Reactor Based on Jiles-Atherton Inverse Model

作　　者：胡蔡飞 范学良 童力 何立群 李晓辉 郑宏 章柳松 HU Caifei;FAN Xueliang;TONG Li;HE Liqun;LI Xiaohui;ZHENG Hong;ZHANG Liusong(School of Rail Transportation,Soochow University,Suzhou 215131,China;State Grid Zhejiang Electric Power Research Institute,Hangzhou 310014,China;Kelin Electric Co.,Ltd.,Hangzhou 310011,China)

机构地区：[1]苏州大学轨道交通学院,江苏苏州215131 [2]国网浙江省电力有限公司电力科学研究院,浙江杭州310014 [3]柯林电气股份有限公司,浙江杭州310011

出　　处：《中国电力》2021年第12期38-44,共7页Electric Power

基　　金：国网浙江省电力有限公司科技项目(5211DS170019);国家自然科学基金资助项目(51707127)。

摘　　要：磁阀式可控电抗器(MCR)是电力系统中的无功补偿装置,其容量调节通过改变磁阀的铁心饱和度实现。为了对MCR的铁心饱和度进行实时、准确的分析,从而优化MCR的输出控制,保障铁心磁阀安全可靠工作,基于Jiles-Atherton(J-A)逆模型对MCR进行数学建模,并通过电磁计算程序,对比分析不同状态变量对MCR输出特性的影响。结果表明,励磁支路的直流激磁电流与饱和度具有较好的线性关系,可以作为铁心饱和度的分析及观测指标。研究及结论有助于实现MCR铁心饱和程度及励磁支路状态的在线监测,优化调控MCR输出无功功率。Magnetic-valve controlled reactor(MCR)is a reactive compensation device in power system,and its capacity is regulated through changing the saturation of iron core.In order to accurately analyze the core saturation of MCR in real time for optimizing the output control of MCR and guaranteeing the safe and reliable operation of magnetic valves,a mathematical model of MCR is established based on Jiles-Atherton(J-A)inverse model and the effects of different state variables on the output characteristics of MCR are compared and analyzed with the electromagnetic computing program.The results show that the DC excitation current of the excitation branch presents linear relationship with the saturation degree.Therefore the DC excitation current can be used as an index for core saturation observation and analysis.The reached conclusions are helpful for realizing the on-line monitoring of the MCR core saturation and the operating state of excitation branch,and for optimizing the control of the output reactive power of MCR.

关 键 词：磁阀式可控电抗器 状态变量 饱和度 Jiles-Atherton(J-A)逆模型 激磁电流 

分 类 号：TM47[电气工程—电器]