太阳能冷热电联供系统的综合性能评价与研究

为了高效利用丰富的太阳能资源,同时满足用户多样化能源的需求,可以采用太阳能实现冷热电联供。当太阳能作为热源或辅助电源时,系统较为稳定且控制方法简单。但是当两种形式同时存在时,会导致太阳能的能源利用率降低且成本升高。因此,需要一种方法对太阳能冷热电联供系统(PV/T-CCHP)的优劣进行评估。提出采用基于Fuzzy-AHP的多目标决策法(MCDM),建立PV/T-CCHP系统指标体系。以传统的分供系统作为参考,从四个角度分别评估了PV/T-CCHP系统运行性能、不同控制策略下的运行性能以及综合运行性能。研究结果可以为PV/T-CCHP系统的设计运行提供参考。

Evaluation and research on the comprehensive performance of a PV/T-CCHP system

In order to efficiently utilize the abundant solar energy resources and meet the demand of diversity of energy use, solar energy is proposed to realize the combined heat and power supply. As a heat source or auxiliary power supply, the solar combined CCHP system is not only stable but also simple. However, using two kinds of energy forms at the same time will lead to lower energy utilization and higher cost. Thus, new methods are needed to evaluate the advantages and disadvantages of the solar cooling heating and power cogeneration system (PV/T-CCHP). The multi-objective decision making theory based on Fuzzy-AHP is put forward, and PV/T-CCHP index system is also established. Taking the traditional separate system as a reference, the operation performance of PV/T-CCHP system is analyzed. The running performance and the comprehensive operation performance of different control strategies from four perspectives are also compared. The research results can be used for the design and operation references of PV/T-CCHP system. This work is supported by Natural Science Foundation of China (No. 51667020), University Natural Science Research Program of Xinjiang Uygur Autonomous Region (No. XJEDU2017I002), and Key Research and Development Projects of Xinjiang Uygur Autonomous Region (No. 2016B0201).