小接地电流系统单相间歇性弧光接地过电压抑制方法  

Suppression Method for Single Phase Intermittent Arc GroundingOvervoltage in Small Grounding Current System

作　　者：杨海运 岳国良 金欣明[1] 闫柯柯[1] 宫艳朝 张建军 Yang Haiyun;Yue Guoliang;Jin Xinming;Yan Keke;Gong Yanchao;Zhang Jianjun(State Grid Handan Electric Power Supply Company,Handan Hebei 056035, China;State Grid Hebei Electric Power Co., Ltd.,Shijiazhuang Hebei 050000, China;Hebei Weizheng Electric Power Technology Co., Ltd.,Handan Hebei 056001, China)

机构地区：[1]国网邯郸供电公司,河北邯郸056035 [2]国网河北省电力有限公司,河北石家庄050000 [3]河北伟正电力技术有限公司,河北邯郸056001

出　　处：《电气自动化》2021年第6期33-35,共3页Electrical Automation

基　　金：国网河北省电力有限公司科学基金项目(kj2018-011):有源调压型消弧限压保护装置研究。

摘　　要：为了提高小接地电流系统的输出稳定性,设计小接地电流系统单相间歇性弧光接地过电压抑制方法。通过匹配滤波检测及参数控制相结合的方法,建立单相间歇性弧光接地过电压传输参数辨识模型。根据参数辨识结果,通过输入平衡功率传递控制进行电压均衡调节,并构建单相间歇性振荡波束控制模型,进而进行弧光接地电压的稳态调节以及过电压保护,实现单相间歇性弧光接地过电压抑制。结果表明,能有效抑制单相间歇性弧光接地过电压,小接地电流系统的输出稳定性较好,抗干扰能力较强。For the sake of heightening the output stability of small grounding current system,an overvoltage suppression method for single phase intermittent arc grounding in small grounding current system was designed.The parameter identification model for single-phase intermittent arc grounding overvoltage transmission was established by means of matched filtering detection and parameter controlling.According to the results of the parameter identification,the input balanced power transfer controlling was used for voltage equalization regulation,and the single-phase intermittent oscillation beam control model was constructed,and then the steady state regulation and overvoltage protection of the arc grounding voltage were carried out to realize the overvoltage suppression of single-phase intermittent arc grounding voltage.The experimental results show that this method can effectively suppress the single-phase intermittent arc grounding overvoltage,and the output stability of the small grounding current system is good,and the anti-interference ability is strong.

关 键 词：小接地电流系统 单相 间歇性 弧光接地 过电压抑制 

分 类 号：TM714[电气工程—电力系统及自动化]