影响电网频率动态过程的因素分析  

Analysis of factors that influence the dynamic process of frequency

作　　者：王伟红[1] 黄民翔[1] 刘菲[2] 柯定芳[3] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027 [2]吉林供电公司,吉林吉林132013 [3]浙江电力教育培训中心,浙江杭州310015

出　　处：《能源工程》2006年第5期9-13,共5页Energy Engineering

摘　　要：在电网运行中,当电力系统发生功率脱落时,系统频率会随之发生波动,对电力系统安全稳定运行产生很大影响。通过分析调速系统、发电机模型和负荷模型等对频率动态过程的影响,在电力系统潮流基础上构建了新的系统模型及参数,对其仿真所得曲线与实测曲线比较,认为新的模型在频率意义上更符合实际电力系统的运行工况,为系统运行人员进行事故分析提供可靠的依据。The frequency fluctuation will occur when active power dropped in the power system. This paper focuses on main factors that influence the frequency curve. Through analyzing the effect of the governor, generator model and load model on the frequency dynamic, a new system model is constructed based on the power flow. Comparing the simulation curve and the actual frequency curve, it shows that the new power system model is more close to the actual operation. And it provides the reliable basis of analyzing fault,

关 键 词：电力系统 频率动态过程 调速器模型 发电机模型 负荷模型 

分 类 号：TK712[动力工程及工程热物理—流体机械及工程]