In our country , the distributing of resources and loads is asymmetrical . with the development of electric power industry , it is a challenge for long distance power transmission 我国电力工业发展迅速,但资源与负荷的分布很不均匀,电力系统资源与负荷的矛盾分布为远距离输电技术带来了挑战。
Following the development of power system , the upgrade of voltage grade and the appearance of high - power and long distance power transmission , the safety and the stability of power system are much more required 随着电网的发展、电压等级的提高和大功率远距离输电运行方式的出现,对系统安全稳定运行提出了更高的要求。
With the gradual built of three - gorges hydraulic power station and the execution of the project " electric power transmission from west to east " , the hydroelectric resource is being developed at top speed and the hydroelectric occupy more and more specific weight . the continuous completion and commissioning of large hydraulic power station , as well as the continuous increasing of extra - high voltage and long distance power transmission system , deteriorate the stability control problem of hydro - electricity system 随着三峡水电站的逐步建成和“西电东送”计划的实施,我国的水电开发进入了高速发展的时期,大型巨型水电站不断建成投运,超高压远距离输电系统不断增长,水电在我国电力系统中所占比重越来越大。