中国电机工程学报2016，Vol.36Issue(7)：1790-1800,11.DOI:10.13334/j.0258-8013.pcsee.2016.07.004
特高压直流分层接入方式下受端交流系统接纳能力分析
Analysis on Absorbing Ability of Receiving AC System for UHVDC Hierarchical Connection to AC Grid
摘要
Abstract
With the advantages of guiding the reasonable power flow and improving the voltage support ability, a new pattern called ultra high voltage direct current (UHVDC) hierarchical connection (HC) to AC grid will be widely applied in the new built large capacity UHVDC projects in China. The huge capacity of power will be absorbed in the same terminal location under the new connection mode, and the problems about the absorbing ability of receiving system is in need of research urgently. Based on the actual UHVDC HC project, the paper established the equivalent model of AC/DC system under HC mode, and then presented the improved definition of hierarchical connection short circuit ratio (HCSCR) under the analysis of influencing factors. Furthermore, how absorbing ability of receiving system affected by HCSCR was analyzed. At last, the criteria of the strength of receiving system under HC mode was given by calculating the hierarchical connection critical short circuit ratio (HCCSCR) and hierarchical connection boundary short circuit ratio (HCBSCR).关键词
特高压直流/分层接入方式/分层接入短路比/接纳能力Key words
ultra high voltage direct current (UHVDC)/hierarchical connection (HC) mode/hierarchical connection short circuit ratio (HCSCR)/absorbing ability分类
信息技术与安全科学引用本文复制引用
汤奕,陈斌,皮景创,汪成根,刘明松..特高压直流分层接入方式下受端交流系统接纳能力分析[J].中国电机工程学报,2016,36(7):1790-1800,11.基金项目
国家自然科学基金项目(51577030)；国家电网公司项目(XT71-15-045)；江苏省电力公司科技项目(5210EF14001P)。 Project Supported by National Natural Science Foundation of China (51577030) （51577030）
Project Supported by State Gird Corporation of China (XT71-15-045) （XT71-15-045）
Project Supported by JiangSu Electric Power Company (5210EF14001P) （5210EF14001P）
