摘要
分析和回顾了现有的电流互感器暂态仿真数学模型。这些模型可归纳为基于基本励磁曲线的静态模型、基于暂态励磁特性曲线的动态模型和非线性时域等效电路模型等3种类型,详细说明了这3种模型的建模方法,并且介绍了在现有的通用暂态仿真软件EMTP和EMTDC中所使用的电流互感器模型。通过仿真实例比较说明了这3种模型的优缺点以及应用范围。最后对不同电流互感器模型的应用场合提出了建议。
The mathematical models of transient current transformer simulation are reviewed and analyzed. In general, these models can be induced to three types, i.e., the staticmodel based on basic exciting curve, the dynamic model based on transient exciting curve and the time-domain model based on non-linear circuit equivalency. The modeling method forthese three models is described in detail and the models ofcurrent transformer (CT) which are applied in existing versatile transient simulation software EMTP and EMTDC are presented. Through the comparison of simulation results of practicalexamples, the merits and drawbacks of the three models and their application fields are explained. Finally, some suggestions for the application fields of the different CT models areproposed.
出处
《电网技术》
EI
CSCD
北大核心
2003年第4期11-14,26,共5页
Power System Technology
基金
云南省中青年学术和技术带头人培养经费
省应用基础研究基金(98E163M
99E006G2002E0025M)
省科技攻关项目(15B2-02)资助。
