含风电地区电网暂态过程对频率稳定性影响的动态模拟

Dynamic Simulation of Influences of the Transient Process of the Power Grid Containing Wind Farm on Frequency Stability

针对含风电地区电网暂态过程对电力系统频率稳定性的影响问题,分析了含风电地区电网等值模型三相短路暂态过程系统频率响应特性。以蒙西某含风电地区电网为原型,根据相似性原理建立了电力系统动态模拟实验模型,实验结果验证了并网风电规模的大幅增加不利于暂态频率稳定性的结论,表明电力系统动态模拟是研究风电并网频率稳定问题的有效手段。

In view of the influence of the transient process of wind power on the frequency stability of power system,this paper analyzes the frequency response characteristics of the three-phase short-circuit transient process of the equivalent model of a regional power grid containing wind power.With a certain regional power grid containing wind power in West Inner Mongolia as the prototype,according to the similarity principle,the power system dynamic simulation model is established in the paper.Experimental results demonstrate that large increase of wind power in the connected power grid is not conducive to the transient frequency stability,and the power system dynamic simulation is an effective tool in the study of wind power grid frequency stability problem.