电网技术2016，Vol.40Issue(9)：2654-2660,7.DOI:10.13335/j.1000-3673.pst.2016.09.011
UPFC接入对江苏特高压交直流混联电网的动态交互影响研究
Dynamic Interaction Investigation on a UPFC Connecting to Jiangsu UHV AC/DC Hybrid Power System
摘要
Abstract
The first UPFCinChina wasputintofull operation in Nanjing, Jiangsu Province at the end of 2015. It adopts modular multilevel converter(MMC) based on vector-controlled strategy.Published literatures focus on UPFC under traditional power-angle control, butnodeep research of interactionsbetweenvector-controlled UPFCand HVDC are carried out. In order to gain deep understanding about interaction on UPFC connecting to Jiangsu UHVAC/DC hybrid power system,inthis paper non-linear dynamic mathematical model of vector-current controlled UPFCwas newly establishedand open-loop linearized model of multiple-machine power system containing UPFC and HVDC was derived based on block segmentation. Based on the derived model, dynamic interactions among multiple controllers of UPFC itself,UPFC controllers and HVDCwere investigatedwithrelative gain array (RGA) method, and its validitywas confirmedwithstep simulation results.Non-linear simulation and its curve analysiswithProny method of generator angle differencewere conducted to examine impact of UPFC installationon damping characteristic of low frequency oscillation in Jiangsupowergrid.关键词
统一潮流控制器/矢量控制策略/相对增益矩阵/交互影响/阻尼特性Key words
UPFC/vector-control strategy/relative gain array(RGA)/dynamic interaction/damping characteristic分类
信息技术与安全科学引用本文复制引用
任必兴,杜文娟,王海风,李海峰,陈中..UPFC接入对江苏特高压交直流混联电网的动态交互影响研究[J].电网技术,2016,40(9):2654-2660,7.基金项目
中央高校基本科研业务费专项资金资助(2016XS09)；国家电网公司科技资助项目(SGJS0000DKJS1501080)；国家自然科学基金资助项目(51277029)。Project Supported by the Fundamental Research Funds for the Central Universities (2016XS09) （2016XS09）
State Grid Science & Technology Project (SGJS0000DKJS 1501080) （SGJS0000DKJS 1501080）
National Natural Science Foundation of China (51277029) （51277029）
