电力系统频率动态的机理分析及仿真研究  

Mechanism Analysis and Simulation of Frequency Dynamic in Power Systems

作　　者：张怀宇[1] 黄应强[1] 刘少博 ZHANG Huaiyu;HUANG Yingqiang;LIU Shaobo(Yibin Vocational and Technical College,Yibin 644003,China;Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]宜宾职业技术学院,四川宜宾644003 [2]西南交通大学电气工程学院,四川成都610031

出　　处：《电工技术》2018年第11期24-28,共5页Electric Engineering

摘　　要：提出一种基于直流潮流的电力系统中频率响应的解析方法。首先,基于建模的基本假设,对系统中各元件模型进行线性化处理,给出推导过程,建立了电力系统的频率动态分析数学模型。根据推导出的频率动态数学模型,通过编程得到N节点电力系统频率动态仿真程序,并根据New England 10机39节点标准测试系统数据,仿真分析了不同因素影响下,频率动态的不同变化过程。结果表明,该模型能快速和准确反映电网中频率变化的动态过程和发电机的惯性效应。In this paper,an analytical method of frequency response in linear power system based on DC power flow is proposed.First,according to the basic assumptions of modeling,each component model in the system is linearized,the detailed derivation process is given,and the mathematical model of frequency dynamic of power system is also established.According to the dynamic mathematical model of power system frequency,the simulation program about frequency dynamic in N-bus power system is obtained,and according to the data of New England 10-machine 39-bus test system,the frequency dynamic change process are analyzed under the influence of different factors.The results show the model can reflect the dynamic process of frequency change and the effect of inertia for each generator in the power system quickly and accurately.

关 键 词：频率动态 机理分析 惯性常数 过程仿真 

分 类 号：TM743[电气工程—电力系统及自动化]