摘要
特高压直流双极闭锁后以及重大事故等紧急情况下,受端电网功率会严重失衡进而导致重要输电断面过载、联络线超用以及系统旋转备用不足等问题,电网调控人员亟需快速准确切除大量负荷平衡区域电网功率的技术手段。文中提出了基于现有智能电网调度控制系统基础平台一体化建设的批量负荷快速控制系统,阐述了系统总体架构及关键技术实现方案,重点提出了综合考虑负荷重要等级、控制顺序、控制裕度等多目标融合的批量负荷控制策略,并实现了基于多厂站并发控制的批量负荷快速切除方法。最后,结合实例验证了该批量负荷快速控制系统的有效性,紧急情况下能够快速完成大量负荷切除操作,切实保障电网安全稳定运行。
In the case of bipolar block of ultra-high voltage direct current（UHVDC）system or major accident,problems such as overload of the power transmission section,overload of the link line and insufficient system rotation standby will occur in the receiving-end power system after the accident,for lack of active power.So necessary dispatching technical support is a pressing matter of the moment.A high speed batch control system is proposed based on the smart grid dispatching and control system.The system overall framework and implementation scheme of key technologies are provided.The smart grid control strategy synthesized multiple target merger is emphasized,including the magnitude of load,the sequence of control and the margin of control.A method for batch load-shedding based on concurrent control of substations is realized.Finally,the application and experimental data of the system are presented to ensure power grid security in case of emergency by high speed batch loadshedding.
出处
《电力系统自动化》
EI
CSCD
北大核心
2016年第17期177-183,共7页
Automation of Electric Power Systems
基金
国家电网公司科技项目"变电站一次设备远方操作安全性关键技术研究与应用"
已申请国家发明专利(申请号:201510294120.1)~~
关键词
特高压
控制策略
批量负荷控制
并发操作
ultra-high voltage
control strategy
batch load control
concurrent control
