基于RTDS的孤网频率特性仿真  

Simulation on Frequency Characteristics of Isolated Power System Based on RTDS

作　　者：孙志媛[1] 孙艳 宁文辉[1] 

机构地区：[1]广西电网公司电力科学研究院,广西南宁530023 [2]广西电网电力调度控制中心,广西南宁530023

出　　处：《现代电力》2012年第3期17-20,共4页Modern Electric Power

摘　　要：为研究孤网频率特性,以便采取措施保障电网安全稳定运行,针对2008年初桂林地区电网孤网运行的实际情况,利用RTDS搭建了国电永福电厂#2机单机带负荷的孤网仿真模型。通过仿真实验和理论分析,深入研究机组一次调频中调差系数、调频限幅、调频死区、励磁系统AVR各参数的设置以及负荷特性对孤网频率稳定性的影响,仿真结果对于孤网运行具有重要的现实意义。In order to study the frequency characteristic of the isolated power grid and to insure the security and stability of the power grid by measures, an isolated simulation model of single machine with load for YongFu# 2 generator is built by using of RTDS as to the actual isolated operation mode of GuiLin. Through simulation tests and theoretical analysis, the influence of factors such as difference coeffi- cient, frequency regulation limiting, regulation dead-band of the primary frequency regulation, excitation system and load characteristic on frequency stability of the isolated power grid is deeply analyzed, and the research results have important significance in guiding operation of actual isolated power grid.

关 键 词：孤网 实时数字仿真 频率稳定 调速系统 励磁系统 负荷特性 

分 类 号：TM721.1[电气工程—电力系统及自动化]