电力系统自动化2012，Vol.36Issue(7)：110-115,6.
基于数字混合仿真的电网一次时间常数计算方法
A Calculating Method for Primary Time Constant of Power Grids Based on Digital Hybrid Simulation
唐宝锋 1许庆强 2范辉1
作者信息
- 1. 河北省电力研究院,河北省石家庄市050021
- 2. 江苏省电力公司,江苏省南京市210024
- 折叠
摘要
Abstract
The primary time constant of power grids is the major factor of determining the decay rate of non-periodic components.Accurate calculation of the primary time constant is the important premise of transient characteristic analysis of current transformers.Based on the hybrid simulation function of the advanced digital power system simulator,an accurate primary time constant calculating method is proposed.By developing the electromechanical transient model of the whole system and electromagnetic transient model of the local grid,short-circuit current in different operating modes is obtained.After filtering,the non-periodic component of short-circuit current is obtained and hence the primary time constant.Simulation results show that the algorithm has fairly high accuracy.关键词
混合仿真/一次时间常数/暂态特性/电流互感器Key words
hybrid simulation/primary time constant/transient characteristic/current transformer分类
信息技术与安全科学引用本文复制引用
唐宝锋,许庆强,范辉..基于数字混合仿真的电网一次时间常数计算方法[J].电力系统自动化,2012,36(7):110-115,6.
