基于火电厂源侧的综合能源系统集成及优化配置研究

Integration and Optimal Allocation of Integrated Energy System Based on Source Side of Thermal Power Plant

提出一种基于火电厂源侧的综合能源系统构型,该系统以火电机组为核心,在系统的输入端耦合生物质气化、垃圾气化、干化污泥等多种可再生能源输入,在输出端供应冷、热、汽、电等多种能源产品,并将电厂热平衡模型与可再生能源模型及制冷制热系统模型耦合,建立以[火用]效率和经济性为目标的优化配置方法,采用输入端优化与输出端优化2类优化逻辑,从系统输入端、输出端来分析火电厂源侧综合能源系统主要运行参数对经济性和[火用]效率优化目标的影响。结果表明:综合能源改造对现阶段火电厂具有积极意义。

An integrated energy system based on source side of thermal power plant was proposed,which takes thermal power units as the core,couples multiple renewable energy inputs such as biomass gasification,garbage gasification and dried sludge at the input end of the system,and supplies multiple energy products such as colding,heating,steam and electricity at the output end.By coupling the thermal balance model of the power plant with the renewable energy model and cooling/heating system model,an optimization configuration method was established with efficiency and economy as the objectives.The following two types of optimization logics,input optimization and output optimization,were adopted to analyze the impact of the main operating parameters of the integrated energy system on the economy and efficiency optimization goals from the input and output ends of the system.Results show that integrated energy transformation has positive significance for current thermal power plants.