以断面控制为核心的电网调度运行控制体系及系统开发

输电断面是整个电网系统中的薄弱环节，输电断面的识别和控制对系统的安全稳定性具有重要意义。针对当前电网调度断面控制因缺乏顶层设计而难以整合断面辨识和传输极限计算等问题，研究了以断面控制为核心的电网调度运行控制体系及其系统开发。研究了基于二分法的数学模型，计算输电断面的极限传输功率，构建以断面控制为核心的运行体系。并重点讨论各支撑断面控制分析的关键技术。通过本系统在地区电网一年多来的应用证明了该方法的实际效果。

Research and development of power grid dispatching operation control system based on transmission section control

Transmission section is the weakness on whole power system, so the identification and control of transmission section has great influence on system safety and stability.Due to the lack of top-level design, grid dispatching operation control has the integrated problems including transmission section identification and maximum power transfer computing, etc. This paper researches grid dispatching operation control system and its development based on transmission section control. It studies the mathematical model based on dichotomy, computes the maximum power transfer of the transmission section and develops the operation system by taking section control as a core. Mathematical model of dichotomy is introduced and the operation system based on transmission section control is constructed. Key technologies of supporting transmission section control are discussed. The significant effect of the proposed system is proved through applying it in a reginal grid more than a year.