基于改进最小叉熵法的区域综合能源系统经济效益评估

Economic benefit evaluation of regional integrated energy system based on improved minimum cross entropy method

区域综合能源系统(RIES)作为一种可充分利用多种能源的有效网络形式,其组成方案的经济效益评估意义重大。针对RIES经济性评估指标不完善及指标权重确定受主观因素影响较大的问题,文中首先分析了RIES的架构,搭建了RIES经济性评价指标体系。为提高指标权重融合的合理性,文中提出可反映主、客观权重内在联系的改进最小叉熵法,结合优劣解距离法(TOPSIS)和秩和比法(RSR),进行RIES投资方案的多准则评价排序并选出最优方案。最后,选取某工业园区不同系统组成方案作为算例进行经济效益评估验证,结果证明了文中所提方法的工程实用性,可为RIES的规划和改造等项目提供有效的经济效益评价。

The regional integrated energy system(RIES)is an effective network with sufficient utilization of multi-energy.Its economic evaluation is important.Aiming at the incomplete economic assessment indexes of the RIES and the index weight aggregation influenced by subjective factors,the structure of the RIES is analyzed,and RIES economic evaluation index system is established.Then,an improved minimum cross-entropy which can reflect the internal relationship between subjective and objective weights is proposed to improve the rationality of index weight integration.The investment schemes for the RIES are sorted and the optimal one is selected by a multi-criteria evaluation ranking method of technique for order preference by similarity to ideal solution(TOPSIS)combined with rank-sum ratio(RSR).Finally,the economic benefit of different system composition schemes of an industrial park is evaluated as an example.The results show the practicability of the proposed method,which can provide the effective economic benefit evaluation for planning and renovation of RIES.