互联电网联络线功率控制与全过程仿真技术  

Progress and Application of Tie-line Power Control and Whole Process Simulation Technology of Interconnected Power Grid

作　　者：汤涌[1] TANG Yong(State Key Laboratory of Power Grid Safety and Energy Conservation,China Electrical PowerResearch Institute Beijing,100192 ,China)

机构地区：[1]中国电力科学研究院电网安全与节能国家重点实验室

出　　处：《振动．测试与诊断》2019年第4期681-690,898,共11页Journal of Vibration,Measurement & Diagnosis

基　　金：“十一五”国家科技支撑计划重大资助项目(2008BAA13B03);国家重点基础研究发展计划(“九七三”计划)资助项目(2004CB217901);国家自然科学基金重大资助项目(50595412)

摘　　要：互联电网联络线是电网的薄弱环节,联络线连锁开断是引发大停电事故的主要原因,联络线功率控制是保证互联电网安全运行的关键技术。笔者建立了联络线功率波动和振荡的理论,提出了电网主导失稳模式的辨识方法,研发了"毫秒级-秒级-分钟级"多时间尺度电力系统全过程动态仿真软件,建立了互联电网动态过程安全防御技术体系,提升了对关键输电断面联络线连锁开断、电压失稳的有效防御,实现数十分钟乃至数小时动态过程的准确仿真。研究成果应用于我国34个省级及区域电网的规划调度运行,大幅提升了互联电网动态过程安全防御能力,为我国电网安全稳定运行提供了技术保障,使电网安全达到世界最高水平。In order to solve the problems faced by the security of interconnected power grids in China,the principle and method of power fluctuation and the oscillation of tie line are put forward,and a multi-timescale dynamic whole-process model and its simulation method of power system in China are developed.Base on them,the technical system of the dynamic process security defense of interconnected power grids is established,which can improve the effective defense against interruption of tie line chain and accurately simulate the dynamic process of tens of minutes or even hours.It provides a technical guarantee for the safe and stable operation of China power grid,which reaches the highest level in the world.

关 键 词：互联电网 联络线 功率波动 功率振荡 全过程动态仿真 

分 类 号：TM76[电气工程—电力系统及自动化]