计及输电线路和投标变量界约束的电力市场动态投标模型及分析  

A dynamic bidding model and analysis of power markets involving transmission constraints and bounded constraints of bidding variables

作　　者：童小娇[1] 王洁[1] 杨洪明[2] 张新华[3] 

机构地区：[1]长沙理工大学数学与计算科学学院,长沙410076 [2]长沙理工大学电气与信息工程学院,长沙410076 [3]长沙理工大学管理学院,长沙410076

出　　处：《系统工程理论与实践》2008年第5期105-115,共11页Systems Engineering-Theory & Practice

基　　金：国家自然科学基金(60474070,70601003,70501006);湖南省科技项目(06FJ3038)

摘　　要：提出了一类计及输电线路约束和投标变量界约束的电力市场动态投标模型.基于供应函数的Nash均衡理论和优化计算中的非线性互补方法,构建了由差分动态系统和半光滑方程组成的动态模型.以三节点和五节点的电力市场为例,数值仿真分析了在不同的市场参数下,系统将出现不同的输电网运行状态(阻塞和无阻塞)和市场的Nash均衡.进一步分析了投标模型在均衡点的局部稳定性.特别探讨了投标模型中的调整参数对市场均衡点和市场稳定性的影响.This paper presents a dynamic bidding model of power markets involving transmission constraints and bounded constraints of bidding variables. Based on the Nash equilibrium theory of power markets and the nonlinear complementarity method in optimization computations, the dynamic bidding model is composed of a difference dynamic system and semismooth equations. As examples with three buses and fine buses, numerical simulations analyze that under the different parameters of the market, the system will appear different operation states of transmission （i.e., congestion and non-congestion） and different Nash equilibriums. Furthermore, the local stability of bidding madel at Nash equilibriums is investigated. The effect of the adjusting parameter in bidding model to the equilibrium points and the stability is also studied.

关 键 词：电力市场 供应函数 NASH均衡 动态投标模型 稳定性 

分 类 号：TM743[电气工程—电力系统及自动化]