基于 MATLAB 得电力系统仿真摘 要:目前,随着科学技术得进展与电能需求量得日益增长,电力系统规模越来越庞大,超高压远距离输电、大容量发电机组、各种新型控制装置得到了广泛得应用,这对于合理利用能源,充分挖掘现有得输电潜力与保护环境都有重要意义。另一方面,随着国民经济得高速进展,以城市为中心得区域性用电增长越来越快,大电网负荷中心得用电容量越来越大,长距离重负荷输电得情况日益普遍,电力系统在人民得生活与工作中担任重要角色,电力系统得稳定运行直接影响得人们得日常生活。随着电力系统得飞速进展与电网得日益扩大以及自动化程度得不断提高,电力系统中许多计算与控制问题日益复杂,从技术与安全上考虑直接进行电力试验可能性很小,因此迫切要求运用电力仿真来解决这些问题。电力系统仿真就是将电力系统得模型化、数学化来模拟实际得电力系统得运行 ,可以帮助人们通过计算机手段分析实际电力系统得各种运行情况,从而有效了解电力系统概况。本文根据电力系统得特点,利用 MATLAB 得动态仿真软件 Simulink 搭建了含发电机、变压器、输电线路、无穷大电源等得系统得仿真模型,得到了在该系统主供电线路电源端发生三相短路接地故障并由故障器自动跳闸隔离故障得仿真结果,并分析了这一暂态过程。通过仿真结果说明MATIAB 电力系统工具箱就是分析电力系统得有效工具。关键词:电力系统;三相短路;故障分析;matlab 仿真Electric Power System Simulation Base on MATLABAbstract: Now, with the development of science and techmology and the growing demand for eletrical energy, power systems get increasingly large and long-distance EHV power transmission, large capacity electric generating set, as well as the various new control devices have been widely used 、 This has important significance to rationally utilizing energy resources, making full use of the existing electric systems’ delivery potential and protecting the environment 、 On the other hand, with the fast growth of the national economy, city-centered regional power consumption is rising more and more rapidly, power demand in large electric system’ laod centers is growing faster and faster, and lo...
