LIU Ke, YANG Xingsen, YANG Miao, SHEN Haoning, DING Tao , YUAN Sen, ZHAO Zhonghua, ZHANG Limeng
As the construction of the novel power system continues to advance, the cooperative development of source-grid-load-storage is inevitable. However, under the background of “dual-carbon”, the existing source-grid-load-storage cooperative optimization scheduling method does not take into account enough factors such as carbon emission. It is difficult to support the low-carbon development of the novel power system. In this paper, firstly, dynamic carbon emission factors are introduced to propose a low-carbon demand response mechanism driven by both benefits and low carbon, and a low-carbon demand response model is built to accommodate the economic cost and low carbon emission. Secondly, based on the theory of carbon emission flow, a source-grid-load-storage synergistic day-ahead economic dispatch model is constructed considering the carbon flow constraints, which helps the power system to operate with carbon reduction. Subsequently, in order to deal with the nonlinearities introduced by the consideration of carbon flow constraints, a decomposition method is used to deal with them, which is solved by alternating iterations of the two subproblems: low-carbon scheduling and carbon flow calculation. Finally, through the IEEE-14 node system, we implemented the cooperative optimization scheduling for source-grid-load-storage coordination considering low-carbon demand response. The results show that the proposed model and method can effectively balance the carbon and economy, and promote the cooperative development of each section of source-grid-load-storage in the context of the “dual-carbon”.
