Matlab/Simulink在电力系统暂态性能分析中的应用

Application of MATLAB in Power System Transient Performance Analysis

当电力系统受到扰动时,将会引起电压、电流、功率等运行参数发生剧烈地变化和震荡,致使整个系统不能继续运行,甚至造成系统瓦解。本文使用Matlab环境下Simulink仿真工具,建立典型单机——无穷大电力系统的仿真模型,分别在其上设置以三相短路为代表的大扰动和以机械功率阶跃变化为代表的小扰动,对电力系统稳定性进行仿真,并采用一些措施对其稳定性进行改进。结果表明,通过一定的措施可以有效地提高电力系统的稳定性。

When the power system is disturbed, it will cause the voltage, current, power and other operating parameters dramatic change and turmoil, resulting in the entire system can not continue to run, or even system collapse. This article uses Matlab Simulink simulation environment, tools to build a typical single - infinite power system simulation model, were set up in its three-phase short circuit as the representative of a large disturbance and mechanical power step change represented by small perturbations, the power system stability of the simulation, and the use of some measures to improve its stability. The results show that, by some measures can effectively improve power system stability.