热电厂优化选址研究

Study on thermal power plant optimal site selection

热电厂合理选址将直接关系到电厂的经济运行和可持续发展。在构建热电厂选址评价指标体系的基础上,利用粗糙集信息熵和属性重要度方法获得完全信息驱动的指标权重,通过专家群决策将定量和定性信息相结合,得出热电厂选址优先次序。建立热电厂优化选址的多目标混合整数规划模型,充分考虑建厂的经济性和平均综合效益,在计及决策者偏好和满足现实热负荷需求的情况下,实现了建厂成本最少化和平均综合效益最大化。算例表明所提出的选址方法具有一定的科学性和实用性。

The rational site selection of thermoelectric plant will impact the economic operation and sustainable development directly.On the basis of construction of index system for evaluating thermal power plant site selection,the method of rough set is applied to obtain the index weights,which only lie on the system potential information.Through the method of expert decision-making,the quantitative and qualitative information is integrated,and then the priority of the alternative locations is obtained based on the information.The multi-objective optimal model for site selection is built up to balance the economical efficiency and average comprehensive efficiency.In consideration of decision-maker＇s predilection and heat load demand,the two goals of cost minimum and average comprehensive efficiency maximum are achieved at the same time.Example indicates that the method for thermoelectric site selection supplied in this paper possesses some characters,such as scientificity and practicability.