高比例新能源特高压交直流典型算例系统(二):频率及振荡问题算例系统  

Typical Test System of UHV AC and DC Network With High Penetration of New Energy(2):Test System for Analyzing Frequency and Oscillation Stability

作　　者：李明节 郭强 贺静波 李文锋 刘明松 孙航宇 LI Mingjie;GUO Qiang;HE Jingbo;LI Wenfeng;LIU Mingsong;SUN Hangyu(National Power Dispatching and Control Center,Xicheng District,Beijing 100031,China;China Electric Power Research Institute,Haidian District,Beijing 100192,China)

机构地区：[1]国家电力调度控制中心,北京市西城区100031 [2]中国电力科学研究院有限公司,北京市海淀区100192

出　　处：《电网技术》2023年第10期3944-3951,共8页Power System Technology

摘　　要：算例系统源自对实际电力系统的抽象和简化,能反映实际系统存在的各类稳定特征,是开展电力系统特性分析研究的重要基础。近年来,随着特高压直流和新能源的快速发展,电力系统出现宽频振荡等新型稳定问题,同时传统的电压、功角、频率等稳定问题加剧,而我国电力行业尚未发布适用于研究高比例新能源特高压交直流系统的典型算例系统。该文作为典型算例系统系列之二,聚焦频率及振荡稳定问题,构建了3种算例系统,包含直流送端孤岛运行、高占比水电经直流外送以及高比例新能源汇集并网不同典型场景,详细描述了网络拓扑结构、新能源、直流、负荷等模型及参数,以便研究者进行数据搭建及使用。通过仿真验证了算例系统模拟频率及振荡特性的有效性,可支撑高比例新能源特高压交直流混联系统机理探究及算法验证。ion and simplification of the actual power system,which can reflect various stable characteristics of the actual system,and is an important basis for the analysis and research of the characteristics of the power system.In recent years,with rapid development of the UHV DC and new energy,new stability problems such as broadband oscillation have emerged,while traditional voltage,power angle,frequency and other stability problems have become serious.However,China has not released a typical test system suitable for UHV AC and DC network with high penetration of new energy.This paper is the second part of the test systems,focusing frequency and oscillation stability.It introduces three test systems,including island system in the DC sending end,high proportion hydropower system through HVDC and grid-connected high proportion new energy system.This paper introduces the grid topology,new energy,DC,load and other models and parameters,and researchers can build and use these data.The effectiveness of frequency and oscillation stability characteristics of the test system is verified by simulation,which can support the mechanism exploration and algorithm verification of UHV AC and DC network with high penetration of new energy.

关 键 词：算例系统 频率 超低频振荡 次同步振荡 

分 类 号：TM721[电气工程—电力系统及自动化]