实时电力市场中暂态稳定约束下的阻塞管理模型研究  

A Model for Real-time Congestion Management with Transient Stability Constraints

作　　者：郭磊[1] 房大中[1] 

机构地区：[1]天津大学电气与自动化工程学院,天津市南开区300072

出　　处：《电网技术》2006年第3期36-40,共5页Power System Technology

基　　金：国家自然科学基金(50377028)

摘　　要：提出了实时电力市场中基于联营体交易模式的动态阻塞管理模型。该模型将暂态稳定约束下的动态阻塞管理问题描述为调整发电机出力使购电费用增加最小的非线性规划问题,其特点是暂态稳定约束和线路潮流约束均由发电机有功出力调整量表示。采用该模型对新英格兰39节点典型系统进行阻塞管理仿真验算,并将计算结果与静态阻塞管理模型的计算结果进行比较和分析。结果表明本文提出的模型在消除网络阻塞的同时可以确保电力系统的安全稳定运行。A power pool transaction mode based on real-time dynamic congestion management model is proposed, in which the dynamic congestion management under transient stability constraint is described as an algebraic nonlinear programming that adjusts the output of generators to make the increment of power purchasing cost minimized. The feature of the proposed model is that both transient stability constraint and power flow constraint are expressed by the adjusted quantities of generators＇ active outputs. Applying the proposed model to.the simulation of dynamic congestion management by use of typical New England 39-node test system and the simulation results are compared with the calculation results from a static congestion management model. Comparison result proves that the proposed model can ensure the secure and stable operation of power system while the network congestion is eliminated,

关 键 词：实时电力市场 动态阻塞管理 暂态稳定 最优控制 

分 类 号：TM712[电气工程—电力系统及自动化]