基于主动型接地装置消弧控制不同电压反馈方法建模与分析  

Modeling and Analysis of Different Voltage Feedback Methods for Arc Suppression Control Based on Active Grounding Device

作　　者：栾晓明 武守远 贾春娟[1] 李小鹏 高立雪 LUAN Xiaoming;WU Shouyuan;JIA Chunjuan;LI Xiaopeng;GAO Lixue(Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education(Shandong University),Jinan 250061,Shandong Province,China;State Grid Sichuan Electric Power Research Institute,Chengdu 610095,Sichuan Province,China)

机构地区：[1]电网智能化调度与控制教育部重点实验室(山东大学),山东省济南市250061 [2]国家电网公司四川省电力公司电力科学研究院,四川省成都市610095

出　　处：《中国电机工程学报》2023年第23期9084-9097,共14页Proceedings of the CSEE

基　　金：国家电网公司科技项目(5400-202199279A-0-0-00)。

摘　　要：针对配电网传统主动型接地装置的有源消弧控制缺乏详细建模与全面分析,提出3种反馈电压控制实现方法并从多角度进行比较。首先,在传统有源消弧原理的基础上提出3种反馈控制的实现方法,并且建立控制系统的传递函数模型,得到故障电压表达式;其次,针对接地故障的两种极端情况对控制系统进行简化分析,并在此基础上从消弧补偿效果、控制系统稳定性、控制参数影响以及实现难易度4个方面,分析并对比3种反馈方式;最后,仿真结果和低压平台实验表明,提出的建模方法和分析完全符合电压型消弧控制。同时也表明,反馈故障相对地电压的方式较其他反馈方法具有明显的优势。Due to the lack of detailed modeling and comprehensive analysis of the traditional active grounding device for the active arc suppression control in the distribution network,three implementation methods of feedback voltage control are proposed and compared from multiple perspectives.First,based on the traditional active arc suppression principle,three implementation methods of feedback control are proposed.The transfer function model of the control system is established,and the fault voltage expression is obtained.Secondly,the control system is simplified and analyzed according to the two extreme cases of ground fault.On this basis,three feedback methods are analyzed and compared from four aspects:arc suppression compensation effect,control system stability,influence of control parameters and realization difficulty.Finally,the simulation analysis and the results of the low-voltage experimental platform show that the proposed modeling method and analysis are completely in line with the voltage-based active arc suppression control.It is concluded that the method of feedbacking the fault phase-to-ground voltage has obvious advantages over other feedback methods.

关 键 词：主动型接地装置 有源消弧控制 接地故障 配电网 电压反馈控制 

分 类 号：TM862[电气工程—高电压与绝缘技术]