电力系统功角失稳自动切机搜索方法研究

An Automatic Tripping Generators Method for Angle Instablility of Electric Power System

本文针对电力系统暂态稳定仿真中,出现功角失稳后寻找最优切机的难题,提出了一种针对功角失稳的自动切机搜索方法,能够得到恢复系统稳定的极小切机组合。该方法基于发电机节点相角越大电气距离越远的规律,优先切除电气距离远的机组,更有利于保持电力系统的稳定性,通过迭代搜索,找到恢复电力系统稳定运行的极小切机容量。通过大量仿真验证了本文方法的正确性。

It is difficult to find a optimal tripping generator group to solve angle instablility of electric power system.So,a novel automatic tripping generators method for angle instablility is presented.This method is based on the principle the phase of a generate is more big the electric distance is more far.The generates that electric distance are far will be tripped first.By several iterators,the minimized tripping generator group can be found.Many simulation show that the method is correct and valid.