可再生能源多能互补热电气联产系统评价方法综述

Review on Evaluation Methods of Combined Heating,Power and Biogas System Coupled With Renewable Energy

可再生能源多能互补热电气联产(combined heating,power and biogas system coupled with renewable energy,RCHPB)系统已成为应对全球能源危机的重要技术手段。RCHPB系统的能源多源异质和源网荷储深度融合特性给系统评价带来巨大挑战,而合理评价其系统综合性能是推动多能互补系统发展的首要前提。针对国内外既有研究成果,从RCHPB系统能效定义、评价指标体系、评价方法等方面进行文献综述。综述结果表明,由于风能/太阳能具有不确定性和波动性以及能量转换的高耦合性等特点,常规的评价方法不能较好地评价RCHPB系统。因此,有必要考虑气候、资源禀赋、储能容量、能源转换关联性对其他评价指标的影响,以构建RCHPB系统评价指标体系及综合评价方法,从而为RCHPB系统的应用与发展提供有力支撑。最后对RCHPB系统评价方法、评价指标等进行总结与展望。

A combined heating,power and biogas system coupled with renewable energy(RCHPB)has become an important technical approach to deal with the global energy crisis.The RCHPB system illustrates a characteristics of heterogeneity of several input energy resources and strong coupling among resources,grids,loads and storages,which have brought great challenges to the comprehensive evaluation of the system.A reasonable evaluation of the comprehensive performance of the system is the primary prerequisite for promoting the development of multi-energy complementary systems.On the basis of the research results at home and abroad,the systematic energy efficiency definition,the evaluation index system and the evaluation methods of RCHPB system are summarized and analyzed in the paper.The results of the review show that the traditional evaluation methods are not suitable to evaluate RCHPB system well due to the uncertain and fluctuant wind energy and solar energy as well as the strong coupling of energy conversions.It is necessary to consider the effects of climate,resource endowment,energy storage capacity and energy conversion coupling on the evaluation indexes and construct an evaluation index system and comprehensive evaluation method for the RCHPB so as to provide strong support for the application and development of the RCHPB system.The evaluation indexes and evaluation methods of the RCPHB system are finally summarized and prospected.