This thesis carries out studies around the impact of load characteristics on voltage stability - the key problem of power system voltage stability analysis . the impact of load characteristics on static voltage stability is analyzed with the methods based on v - p - and - v - q curves , and the dynamic voltage stability of different loads in the context of both small disturbances and large disturbances is studied with the method of time domain simulation 本文围绕电力系统电压稳定性分析中的关键问题-负荷特性对电压稳定性的影响这一问题展开研究,采用v - p , v - q曲线分析法分析了负荷特性对静态电压稳定性的影响,并采用时域仿真法研究了大扰动和小扰动下负荷的动态电压稳定性。
The subject of voltage stability has become a hot research subject and an urgent question in electric power system . it includes exploring the mechanisms of voltage collapse , constructing a model that reflects real electric power system as possibly as it can and strengthening the researches of power system voltage stability and security 电压稳定性课题已成为热门的研究课题和电力系统迫切需要解决的问题,包括探索电压崩溃的机理、建立尽可能反映电力系统实际的数学模型,以及加强电力系统电压稳定性和安全性的研究。
When the system appears the faults , they will not work , but inpel the occurrence of the system voltage crash . according to the actuality of sichuan power system , the development , which researches for the dynamic compensation for enhancing the system voltage stabilization and constitutes the application scheme , will be provided with great signification of direction and realism 针对四川电网的现状,开展动态无功补偿对提高四川电网电压稳定水平的研究,制定动态无功补偿装置在四川电网中的应用方案,对提高四川电网电压稳定水平有极强的指导意义和现实意义。