计及弃风的“电气互补-冷热联供”模式研究

STUDY ON MODE OF“ELECTRICITY AND GAS COMPLEMENTATION”-“COOLING AND HEATING COMBINED SUPPLY”CONSIDERING WIND CURTAILMENT

针对弃风严重以及传统供暖方式存在难以“热电解耦”的问题,提出一种将蓄热式电锅炉、燃气锅炉、吸收式制冷机相结合的“电气互补-冷热联供”弃风消纳模式。首先,根据弃风和冷热负荷特性建立“电气互补-冷热联供”模型;然后,考虑供暖与制冷成本,构建“电气互补-冷热联供”经济性模型;最后,通过算例分析与传统“燃气锅炉-空调”供暖制冷模型的经济性进行对比。结果表明:所提模式可在消纳弃风的同时减少碳排放量,达到提升系统收益的目的。

In view of the serious wind curtailment and the difficulty of“Thermoelectric Decoupling”in the traditional heating methods,a type mode of accommodating wind power named“Electricity and Gas Complementation”-“Cooling and Heating Combined Supply”is proposed,which combines heat storage electric boilers,gas boilers and absorption chillers.First,to establish a model of“Electricity and Gas Complementation”-“Cooling and Heating Combined Supply”based on the characteristics of the curtailed wind power,heat loads and cold loads.Then,considering the costs of heating and cooling,to construct an economic model of“Electricity and Gas Complementation”-“Cooling and Heating Combined Supply”.Finally,the economical efficiency of the traditional model in heating and cooling named“Gas Boiler-Air Conditioning”is compared with the model of this paper by the example analysis.The results show that the proposed model can reduce the carbon emissions while absorbing the abandonment of wind power,and achieve the purpose of improving system economy.