摘要
特高压直流大功率失去将对受端电网安全运行造成严重冲击。文中针对特高压直流大功率失去下的频率恢复、直流近区输电断面过载、联络线功率超用,以及系统旋转备用不足等稳态控制问题,提出了源网荷协调控制策略。利用可中断负荷,建立调度—营销协同及省地一体化的负荷控制架构,实现特高压故障情况下发电、负荷及电网的协调优化控制,为特高压受端电网应对直流大功率失去下的调度故障处置提供了参考及借鉴。
It will be a serious impact on the receiving power system of safe operation when power of the ultra-high voltage direct current（UHVDC）system gets lost.Asource-grid-load＂coordinated control strategy is proposed for steady control problems such as frequency restoring,transmission section overloading,tie-line power overusing,spinning reserve lacking,etc,with the power of the UHVDC system lost.By using interruptible loads,through integrated dispatch-marketing and provincial-regional control,the generation,load and grid coordinated optimization control is achieved,which provides an important reference for the dispatcher to cope with the receiving power system with the power of the UHVDC system lost.
出处
《电力系统自动化》
EI
CSCD
北大核心
2017年第5期147-152,共6页
Automation of Electric Power Systems
基金
国家电网公司科技项目"大型地区电网运行风险分析及应急处置关键技术研究"~~
关键词
特高压
可中断负荷
直流故障
负荷控制
ultra-high voltage
interruptible load
DC fault
load control
