考虑退役火电改造卡诺电池的沙戈荒新能源基地电热混合储能优化配置方法OA

Since the proposal of the"dual carbon"target,China has accelerated the construction of large-scale renewable energy bases in desert,Gobi and wasteland regions.To improve renewable energy accommodation capacity,this paper proposes an optimization configuration method of electric-thermal hybrid energy storage(ETHES)for Desert-Gobi-Wasteland renewable energy base(DGW-REB)considering the transformation of decommissioned thermal power units into Carnot battery(CB).Primarily,the basic principle of the transformation of decommissioned thermal power units into molten salt CB is analyzed for DGW-REB including electrochemical energy storage and CB,and a model for the economic and technical characteristics of molten salt CB is constructed.Secondly,targeting the maximization of annual net income of DGW-REB and considering the green certificate-carbon trading mechanism,an integrated planning and operation model of ETHES for DGW-REB is established and solved by annual 8 760 h time-series production simulation based on time dimension decomposition.Finally,simulation analyses are carried out by taking a practical renewable energy base example in the Kubuqi Desert as the engineering case.The results verify that the proposed method can support large-scale and high-proportion renewable energy power delivery.The research findings can provide a theoretical reference for the optimization configuration of energy storage of DGW-REB.