摘要
随着新能源和电力电子装备在电力系统中的占比快速提升,系统的频率动态特性发生重大变化。为了研究新能源机组并网对新型电力系统频率时空分布特性的影响:首先,建立了新能源电力系统的频率动态响应解析模型,并分析了频率时空分布特性的影响因素及新能源并网对该特性的影响机理;其次,讨论了研究频率时空分布特性的必要性及描述该特性的量化指标;最后,基于仿真结果分析了不同电网形态下的频率时空分布特性,并总结了新能源机组并网对该特性的影响规律。
With the increasing penetration of renewable energy and power electronic equipment,the frequency charac-teristics of power systems have been significantly changed.This paper analyzes the influence of renewable energy on the frequency space-time distribution characteristics of power systems.Firstly,a mathematical model of the frequency dy-namic response of power systems with renewables is established.Meanwhile,the influencing factors of frequency space-time distribution and the mechanism of the renewable energy affecting this characteristic are analyzed.Next,the necessity and the quantitative indices for the evaluation of frequency distribution are briefly reviewed.Finally,based on the simulation results,the characteristics of frequency responses in different structure of grids are analyzed,and the in-fluence of the access of renewable energy on the frequency space-time distribution characteristics is studied.
作者
马宁嘉
谢小荣
孙谊媊
王衡
秦晓辉
MA Ningjia;XIE Xiaorong;SUN Yiqian;WANG Heng;QIN Xiaohui(State Key Lab of Control and Simulation of Power Systems and Generation Equipment,Electrical Engineering,Tsinghua University,Beijing 100084,China;State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830063,China;China Electric Power Research Institute,Beijing 100180,China)
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2024年第1期406-413,共8页
High Voltage Engineering
基金
国家电网有限公司科技项目(高比例新能源电力系统的频率电压支撑与调节能力研究)(5100-202055392A-0-0-00)。
关键词
新能源
电力系统
频率响应
时空分布特性
解析模型
量化指标
renewable energy
power systems
frequency dynamics
time-space distribution features
mathematical model
quantitative indices
