基于㶲经济学的分布式供能系统分析评价方法

Analysis and evaluation method of distributed energy supply system based on exergic economics

对分布式供能系统的性能进行准确而全面的分析评价,是分布式供能系统进一步发展的重要环节.能源互联网背景下,分布式供能系统变得越来越复杂,其分析评价方法面临巨大挑战.本文首先基于㶲经济学理论,建立了分布式供能系统统一分析模型;其次,提出了综合考虑㶲效率和㶲损作为分布式供能系统能耗特性评价指标,㶲损成本和㶲经济系数作为经济特性评价指标的分析评价方法,并设计了分析评价的流程;最后,以某供电局分布式供能系统为算例,验证了所提模型和分析评价方法的优越性.结果表明,本文提出的统一分析模型和分析评价方法对系统投资决策、优化设计和运行优化具有指导意义.

Accurate and comprehensive analysis and evaluation of the performance of distributed energy supply system(DESS)is an important part of its further development.Under the background of the energy internet,the DESS becomes more and more complex,and its analysis and evaluation methods are facing great challenges.Firstly,based on the theory of exergy economics,a unified analysis model of the DESS is established.Secondly,an analysis and evaluation method of the DESS is proposed,in which exergy efficiency and exergy loss are taken as evaluation indexes of energy consumption characteristics,and exergy loss cost and exergy economic coefficient are taken as those of economic characteristics,and the analysis and evaluation process is designed.Finally,a DESS of a power supply bureau is taken as an example to verify the superiority of the proposed model and the analysis and evaluation method.The results show that the unified analysis model and the analysis and evaluation method proposed in this paper have guiding significance for the investment decision,optimal design and operation optimization of the system.