摘要
针对当前中性点不接地中低压配电网中频发的铁磁谐振这一典型故障,首先,研究分析了其谐振现象的产生机理与抑制方法,并在此基础上提出了一种基于非故障相电压幅值实时跟踪、调节PT开口三角形阻尼电阻的主动式谐振消弭方法;进而,基于电力系统全数字实时仿真平台ADPSS/ETSDAC,结合某35 kV变电站实际参数,搭建了铁磁谐振故障的仿真模型进行分析;最后,仿真验证了所提出的谐振消弭方法的可行性与正确性。
The ferro-resonance is a typical fault occurring frequently in the medium and low voltage neutral ungrounded distribution network,its triggering mechanism and inhibition method are analyzed,and a novel active resonance inhibition method based on real-time sound phase voltage magnitude tracking and open-delta resistance regulation is proposed.Furthermore,based on a full digital real-time simulation platform of power system called ADPSS/ETSDAC,according to actual parameters of a 35 kV substation,a simulation model of ferro-resonance in a distribution network is established.Feasibility and validity of the proposed resonance inhibition method are verified by the simulation results.
作者
朱子民
秦艳辉
朱咏明
段青熙
亢朋朋
刘勇
董雪涛
樊国旗
Zhu Zimin;Qin Yanhui;Zhu Yongming;Duan Qingxi;Kang Pengpeng;Liu Yong;Dong Xuetao;Fan Guoqi(State Grid Xinjiang Electric Power Research Institute, Urumqi 830011, Xinjiang, China;School of Electrical Engineering, Southeast University, Nanjing 210096, Jiangsu, China;State Grid Xinjiang Changji Electric Power Supply Company, Changji 831100, Xinjiang, China;State Grid Xinjiang Electric Power Co., Ltd., Urumqi 830011, Xinjiang, China;Anhui Zhengguang Electric Power Technology Co., Ltd., Hefei 230000, Anhui, China;State Grid Jinhua Electtric Power Supply Company, Jinhua 321001, Zhejiang, China)
出处
《四川电力技术》
2020年第3期57-63,共7页
Sichuan Electric Power Technology
基金
国家电网公司科技项目(NY7-17-008)。
关键词
中性点不接地配网
铁磁谐振
主动式消谐措施
ADPSS
neutral ungrounded distribution network
ferro-resonance
active resonance inhibition method
ADPSS
