厂用电低压交流接触器性能对交流电网稳定性影响分析  

Analysis of influence of auxiliary power low voltage AC contactor performance on AC power grid stability

作　　者：朱建华 厉志波 刘震 祁晓笑 ZHU Jianhua;LI Zhibo;LIU Zhen;QI Xiaoxiao(Rundian Energy Science and Technology Co.,Ltd.,Zhengzhou 450000,China;Electric Power Research Institute of State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830011,China)

机构地区：[1]润电能源科学技术有限公司,郑州450000 [2]国网新疆电力有限公司电力科学研究院,乌鲁木齐830011

出　　处：《黑龙江电力》2022年第2期160-166,共7页Heilongjiang Electric Power

摘　　要：火电400 V系统交流接触器性能会对交直流混联系统的稳定性造成不利影响,为验证此问题,该文建立了交流接触器的暂态电压模型,并考虑交流接触器、电厂厂用电系统、热工系统及发变组系统的延迟效应,分析直流近区配套电源跳闸对天中直流和交流电网稳定性的影响。在PSASP仿真平台上搭建仿真模型,通过仿真试验验证交流接触器特性对交流电网稳定的具体影响。The performance of AC contactor in thermal power 400 V system will adversely affect the stability of AC/DC hybrid system.In order to verify this problem,this paper establishes the transient voltage model of AC contactor,takes into account the delay effect of AC contactor,auxiliary power system,thermal system and generator transformer unit system,and analyzes the impact of tripping of DC near area supporting power supply on the stability of Tianzhong DC and AC power grid.The simulation model is built on PSASP simulation platform,and the specific impact of AC contactor characteristics on AC power grid stability is verified by simulation experiments.

关 键 词：交流接触器 暂态性能 电压稳定 频率稳定 

分 类 号：TM744[电气工程—电力系统及自动化]