摘要
新能源基地的大规模集中开发和特高压直流的快速发展,有力推动了我国能源结构变革,使得电力系统“双高”特点进一步凸显。以图形化建模的思想建立了风光同时经直流送出系统的模块化小信号模型,并利用特征值分析法对系统进行振荡模式分析与参与因子分析。结果显示,风光联合直流系统呈现出宽频带振荡特性,不同频段的影响因素各不相同,改变主导因素参数会影响模式阻尼,为大规模新能源并网宽频振荡抑制提供参考。
The large-scale centralized development of new energy base and rapid development of UHVDC have strongly promotes reformation of China′s energy structure,and further highlights the"double high"characteristics of electric power system.In this paper,a modular small signal model of wind power-PV system with DC output is established through graphical modeling,and eigenvalue analysis is used to analyze oscillation mode and participation factor of the system.The results show that the wind power-PV system with DC output presents broadband oscillation characteristics.The influencing factors are different in different frequency bands,and changing the dominant factor parameters will affect the mode damping.This study provides a reference for wide-band oscillation suppression of large-scale integration of new energy sources into grid.
作者
马燕峰
陈鑫
MA Yanfeng;CHEN Xin(North China Electric Power University(Baoding),Baoding 071000,China;Yichun Power Supply Branch of State Grid Jiangxi Electric Power Co.,Ltd.,Yichun 336000,China)
出处
《电工技术》
2023年第22期61-64,共4页
Electric Engineering
关键词
小信号模型
特征值分析法
参与因子
宽频振荡
small signal model
eigenvalue analysis
participation factor
broadband oscillation
作者简介
马燕峰(1978-),研究方向为电力系统分析、运行与控制;陈鑫(1996-),硕士研究生,研究方向为电力系统稳定与控制。
