电力系统自动化2011,Vol.35Issue(18):103-107,5.
考虑无功功率协调控制的并行直流系统紧急功率支援
Emergency DC Power Support with Reactive Power Coordinated Control for Multi-circuit HVDC Systems
摘要
Abstract
Coordinated control of reactive power needs to be considered when a DC power system provides emergency DC power support(EDCPS) to improve system voltage stability.The ratio between active power transmission and reactive power consumption of high voltage direct current(HVDC) system is analyzed and derived.Then transient voltage dip near converter station caused by EDCPS among multi-circuit HVDC systems is studied.In order to implement reasonable distribution of reactive power,some strategies such as: emergency inputting spare reactive power,fully using reactive power compensation ability and coordinated control for active power between AC and DC system,etc.are proposed.Simulation results based on practical AC and DC power systems verify the effectiveness of the control strategies proposed.关键词
直流输电/紧急功率支援/电压稳定/无功功率控制/紧急控制/协调控制Key words
DC transmission/emergency power support/voltage stability/reactive power control/emergency control/coordinated control分类
信息技术与安全科学引用本文复制引用
王珂,杨胜春,姚建国,李亚平..考虑无功功率协调控制的并行直流系统紧急功率支援[J].电力系统自动化,2011,35(18):103-107,5.基金项目
国家电网公司科技项目(SG11003)~~ ()