摘要
利用MATLAB中的电力系统模块库PSB,建立三相变压器空载模型及短路模型。在此模型基础上对变压器空载合闸和短路故障切除后电压恢复时的励磁涌流进行了仿真,并对此仿真结果进行了分析。仿真结果与理论分析相吻合,表明利用MATLAB/PSB能够有效地实现对变压器励磁涌流的仿真,为变压器保护的算法研究提供基础。
By using power system blockset （PSB） of MATLAB, no-load model and short circuit model of three-phase transformer are established. Based on these models, the waves of the magnetizing inrush current during switching three-phase transformer with no load and recovering voltage after clearing the fault in short circuit are simulated. And analysis is given to the simulation. The result verifies theoretical anal- ysis and shows that by using MATLAB/PSB can effectively simulate the magnetizing inrush current, and provide foundation for algorithm study of transformer protection.
出处
《安徽电气工程职业技术学院学报》
2010年第1期60-64,共5页
Journal of Anhui Electrical Engineering Professional Technique College
关键词
变压器
电力系统模块库
仿真
励磁涌流
FFT分析
transformer
power system blockset （PSB）
simulation
magnetizing inrush current
FFT analysis
