电网技术2017，Vol.41Issue(10)：3112-3120,9.DOI:10.13335/j.1000-3673.pst.2017.1647
大规模新能源接入弱同步支撑直流送端电网的运行控制技术综述
Reviews of Control Technologies of Large-Scale Renewable Energy Connected to Weakly-Synchronized Sending-End DC Power Grid
摘要
Abstract
Renewable energy sources such as wind power and photovoltaic (PV) power generation have been developed rapidly in recent years, and large-scale exploitation and centralized delivery are the main features of China's renewable energy development. At present, renewable energy bases in Northwest China are generally connected to the remote load centers through UHVDC transmission systems. Nevertheless, less thermal power units are installed at sending-end of UHVDC system, leading to a weak sending system requiring strong frequency regulation and reactive power/voltage controls. Additionally, oscillation problem becomes prominent and weakly-synchronized sending-end DC power grids are formed or under construction, causing great difficulty in operation and control of these power grids. In this paper, major technologies in system frequency regulation, reactive power/voltage control, sub-synchronous oscillation mechanism and its suppression for these weak sending system with external DC links are reviewed respectively. Existing problems are analyzed, and suggestions and prospective developments are proposed for future research.关键词
风力发电/光伏发电/特高压直流/弱交流电网/系统频率调节/无功/电压控制/次同步振荡Key words
wind power generation/photovoltaic (PV) power generation/UHVDC/weak AC grid/system frequency regulation/reactive power/voltage control/sub-synchronous oscillation分类
信息技术与安全科学引用本文复制引用
马进,赵大伟,钱敏慧,朱凌志,姚良忠,汪宁渤..大规模新能源接入弱同步支撑直流送端电网的运行控制技术综述[J].电网技术,2017,41(10):3112-3120,9.基金项目
国家重点研发计划项目(2016YFB0900100) （2016YFB0900100）
国家自然科学基金项目(51607160) （51607160）
国家电网公司科技项目(大规模新能源接入弱同步支撑直流送端电网运行控制与保护技术研究).Project Supported by the National Key Research and Development Program of China (2016YFB0900100) （大规模新能源接入弱同步支撑直流送端电网运行控制与保护技术研究）
National Natural Science Foundation of China (51607160) （51607160）
Research Program of State Grid Corporation of China. （）
