基于交互式多目标决策方法的水火电力系统日有功负荷优化分配  

Optimal Daily Active Power Load Dispatching of Hydrothermal Power System Based on Interactive Multi-Objective Decision-Making Method

作　　者：胡国强[1] 贺仁睦[1] 

机构地区：[1]电力系统保护与动态安全监控教育部重点实验室(华北电力大学),北京市昌平区102206

出　　处：《电网技术》2007年第18期37-42,共6页Power System Technology

摘　　要：峰谷分时电价下,发电企业不仅要考虑运行成本,还应考虑社会效益和经济效益。文章建立了以火电厂运行费用最低、污染气体排放量最小和水电厂发电效益最大为目标的水火电力系统日有功负荷多目标优化分配模型,提出了一种基于目标满意度和目标总体协调度的交互式多目标决策方法,通过建立3个决策模型将多目标问题转化为单目标问题求解。决策者通过对各单项目标满意度和目标总体协调度的不断调整来体现其主观愿望,避免了人为选取目标权重的任意性,便于实际操作应用。算例结果证明了所建立模型的正确性和交互式多目标决策方法的可行性。Generation enterprises not only have to consider operational cost, but also social benefit and economic benefit under peak and valley time-of-use power tariff. The authors build a multi-objective optimal daily active power load dispatching model in which the lowest thermal power plants operational costs, least emission of polluted gas and maximized generation benefits of hydroelectric power stations are taken as optimal objectives; and propose an interactive multi-objective decision-making method based on objective satisfaction degree and objective comprehensive degree; by means of establishing three decision-making models the solution of multi-objective problem is transformed into those of single objective problems. Through unceasingly adjusting the satisfaction degree of single objects and objective comprehensive degree, the subjective desire of decision-maker is incarnated, thus the arbitrariness of artificially choosing objective weight can be avoided, and it makes the proposed method easy to operate and apply. Results of calculation example prove that the presented model is correct and the feasibility of interactive multi-objective decision-making method.

关 键 词：水火电力系统 多目标 有功负荷分配 交互式决策 

分 类 号：TM732[电气工程—电力系统及自动化]