南方电网技术2024，Vol.18Issue(3)：138-145,8.DOI:10.13648/j.cnki.issn1674-0629.2024.03.015
大规模风电并网后江苏电网柔直换流站与UPFC的有功功率协调控制方法
Active Power Coordination Control Method of Converter Stations of MMC-DC System and UPFC in Jiangsu Power Grid Interconnected with the Large-Scale Wind Power
摘要
Abstract
With the proposal and implementation of the"emission peak and carbon neutrality"strategy,China will focus on building a new power system based on renewable energy.However,large-scale integration of renewable energy such as wind power will bring threats and challenges to the new power system with the characteristics of AC/DC hybrid connection.Based on the analysis of Jiangsu Power Grid at the end of the 14th Five-Year Plan,it is noticed that under the background of large-scale wind power integra-tion,the problem of 500 kV AC transmission lines overload after N-1 faults need to be solved urgently.Therefore,based on the comprehensive sensitivity calculation method,an active power coordination control method is proposed,in which the modular multilevel converters(MMCS)of DC systems and the unified power flow controller(UPFC)are used to optimize the power flow distribution and eliminate the potential line overload.Finally,taking Jiangsu Power Grid as an example,simulation analysis is conducted to perform the active power coordinated control method on Suzhou 500 kV UPFC,Baihetan-Jiangsu DC system and a planned three-terminal DC system based on MMC.The simulation results show that the proposed coordinated control method can ef-fectively eliminate the line overload after N-1 faults when applied to Jiangsu Power Grid.In addition,the proposed method has advantages over typical optimization methods in terms of computational speed.关键词
风电并网/模块化多电平换流器/统一潮流控制器/协调控制/混合级联直流系统Key words
wind power integration/modular multilevel converter(MMC)/unified power flow controller(UPFC)/coordination control/hybrid cascade DC system分类
信息技术与安全科学引用本文复制引用
刘柏良,汪惟源,张君黎,程锦闽,董芷函,徐政..大规模风电并网后江苏电网柔直换流站与UPFC的有功功率协调控制方法[J].南方电网技术,2024,18(3):138-145,8.基金项目
国网江苏省电力有限公司科技项目"大规模沿海煤电/风电集群柔直送出规划与协调控制技术研究"(SGJS0000FZJS2100321).Supported by the Science and Technology Project of State Grid Jiangsu Electric Power Co.,Ltd.(SGJS0000FZJS2100321). （SGJS0000FZJS2100321）
