考虑负荷需求弹性的输电阻塞管理

摘要

在输电阻塞管理中考虑负荷的需求弹性(load demand elasticity),并研究不同需求弹性对系统阻塞程度、节点需求电价和系统网损的影响.文中的模型是以社会收益最优为目标函数,考虑负荷需求弹性以及各种系统约束条件,通过路径跟踪内点算法求解最优潮流(OPF),利用电价经济杠杆调节用户用电.通过IEEE-14母线系统算例验证了高需求弹性能有效缓解输电阻塞,减少阻塞费用,使潮流分布更合理和公平.%Load demand elasticity is considered in the transmission congestion management, and the impacts of demand elasticity on degree of transmission congestion, buses demand price and system losses are investigated in this paper. The model with maximizing social surplus as the objective function uses optimal power flow (OPF) as a tool to make a scheduling. In the OPF model load demand elasticity as well as various system constraints are considered, and path following interior point method is used to solv the OPF. IEEE-14 bus system is illustrated as an example to show that the elastic load can contribute to congestion relief and lower the congestion cost through the economic levers of electricity price.