基于AHP-EWM综合赋权和TOPSIS法的多能互补系统综合评价

Multi-criteria Comprehensive Evaluation of Multi-energy Complementary System Based on AHP-EWM and TOPSIS Method

多能互补系统的运行策略直接影响系统的经济性、环保性和能源利用效率。针对多能互补系统的最优运行策略选取问题,首先基于层次分析法以及熵权法结合的综合赋权法确定指标权重,并引入理想逼近排序法实现运行方式的优劣排序;其次分析了以热定电、以电定热以及遵循运营成本策略下的运行方式;最后通过优化一个电气耦合的多能互补系统确定出6个典型日的最佳运行方式并得出全年混合运行策略。结果表明:供热季遵循以电定热策略较优,供冷季以及过渡季遵循运营成本策略较优。从基于此结果的全年运行周期分析可知:混合运行策略比单一运行策略具有更好的综合性能。

The operation strategy of multi-energy complementary system affects the economy,environment and energy utilization efficiency of power system.To select an optimal operation strategy of the multi-energy complementary system,firstly,the index weights were determined by the integrated weight method combining the analytic hierarchy process and the entropy weight method,and the TOPSIS was introduced to rank the operation strategies.Secondly,the operation strategies of the following thermal load(FTL),following electric load(FEL),and following operation cost(FOC)were analyzed.Finally,the optimal operation strategy of six typical days was determined and a year-round optimum hybrid operation strategy was obtained by optimizing an electricity-gas coupling multi-energy complementary system.The results show that it is better to choose the FEL in the heating season,while it is better to choose the FOC in the cooling season and transition season.It can be concluded from analysis of the annual operation cycle that the hybrid operation strategy has better comprehensive performance than the single operation strategy.