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中文摘要：
为满足能源结构优化和电网快速调峰需求,燃气-蒸汽联合循环机组得到快速发展,对联合循环及其内部组元的性能评价提出了更高要求。基于热力学第一定律和第二定律的传统方法无法考虑非能量费用的影响,而热经济学中矩阵热经济学又无法评价联合循环内部组元的技术-经济性能。该文基于热经济学结构理论,建立了联合循环成本模型;在传统的热经济学性能评价指标中引入了权重系数,提出了一种新的评价指标用于性能评价。结合联合循环的3个典型工况,对该文模型和组元评价指标进行了分析和验证。结果表明,该文模型和组元评价指标结果合理,可以为联合循环系统的热经济学优化等后续研究提供性能指标的支撑。
英文摘要：
To meet the demands for optimization of energy structure and for fast peak regulation in power grids,combined cycle power plants（CCPPs） developed quickly in the past couple of years,which has imposed higher requirements for performance evaluation of components in CCPP.However,traditional evaluation methods based on the first and second law of thermodynamics do not consider the influence of non-energy cost.Besides,the matrix thermoeconomic cannot evaluate the techno-economic performance of components in CCPP.Firstly,the cost model of CCPP was established based on the thermoeconomic structural theory.Secondly,a weight coefficient was introduced to a traditional evaluation index to produce a new evaluation index.Lastly,on the basis of three typical load conditions,the cost model of CCPP was verified and the new evaluation index was analyzed.The results show that the cost model of CCPP and the new evaluation index for components are reasonable,and will support the researches on thermoeconomic optimization of CCPP.
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