水电站小波动过渡过程的稳定性评价分析  

Stability Evaluation and Analysis of Small Fluctuation Transition Process of Hydropower Station

作　　者：沈钊根 周延波 SHEN Zhaogen;ZHOU Yanbo(Zhejiang Fuchunjiang Hydropower Equipment Co., Ltd., Hangzhou 311121,China)

机构地区：[1]浙江富春江水电设备有限公司,杭州311121

出　　处：《西北水电》2020年第4期89-92,共4页Northwest Hydropower

摘　　要：现代电力系统对于水电站机组的稳定性要求越来越高,其中,孤网或小网下的过渡过程小波动稳定性是一个重要内容,很多规范要求对水电站进行小波动稳定性计算,如何对小波动稳定性的计算结果进行评价和计算结论是否能满足电网的实际需求,是迫切需要面对的问题。文章通过工程实例分别采用时域法和频域法对水电站进行过渡过程小波动仿真稳定性计算,并对其计算结果作出比较分析和评价建议,其研究结果为小波动过渡过程稳定性评价提供了理论依据。Demand of modern power systems on the stability of hydropower units is higher and higher.Among them,the stability of small fluctuations in the transition process under isolated or small grids is an important aspect.Many specifications require small fluctuation stability calculations for hydropower stations.It is an urgent problem to evaluate the calculation results of small fluctuation stability and whether the calculation conclusion meets the actual demand of the power grid.The article adopts the time domain method and frequency domain method to calculate the stability of the hydropower station with small fluctuations in the transition process through engineering examples,and compares,analyzes and evaluates the calculation results.The study results provide theoretical basis for stability evaluation of the small fluctuation transition process.

关 键 词：小波动过渡过程 时域法 频域法 一管三机 仿真软件SIMSEN 

分 类 号：TV651.1[水利工程—水利水电工程]