内蒙古电力技术2025，Vol.43Issue(3)：69-74,6.DOI:10.19929/j.cnki.nmgdljs.2025.0037
考虑感应电动机负荷对短路电流影响的建模方法研究
Research on Modeling Method Considering Influence of Induction Motor Load on Short Circuit Current
摘要
Abstract
Aiming at the problem of significant differences in calculation results caused by different boundary conditions and inconsistent load model proportions used in existing short circuit current calculations,taking the power grid in eastern Inner Mongolia as the object,according to the survey results of the power grid structure and load model in eastern Inner Mongolia,a typical electromagnetic transient load model for the relevant area is established to obtain the load model and proportion suitable for short circuit current calculation.The simulation calculation results show that the induction motor connected to the distribution network has a great impact on the short circuit current level of the transmission network above 220 kV,and the existing short circuit current calculation results are quite different from the actual situation,which affects the economic operation of the power system.Therefore,it is suggested to consider the influence of induction motor on short circuit current in the calculation of short circuit current,select appropriate load model and proportion,and improve the calculation and analysis level of short circuit current.关键词
蒙东电网/感应电动机/短路电流/负荷模型/电磁暂态Key words
eastern Inner Mongolia power grid/induction motor/short circuit current/load model/electromagnetic transient分类
信息技术与安全科学引用本文复制引用
赵振宇,郑博文,杨朋威,任正..考虑感应电动机负荷对短路电流影响的建模方法研究[J].内蒙古电力技术,2025,43(3):69-74,6.基金项目
国家电网公司科技项目"提升特高压直流输电能力的运行控制技术"(526604210004) （526604210004）
