关键词: 低碳经济调度, 碳排放流理论, 需求响应, 碳捕集电厂, 阶梯碳交易机制

Abstract: Balancing the contradiction between low-carbon economic dispatch and low-carbon operation in power systems while effectively leveraging the source-load synergy potential has become a critical challenge in current power system optimization. This paper proposes a source-load coordinated low-carbon economic dispatch method considering a carbon potential-electricity price joint response mechanism to achieve dual optimization of economic efficiency and low-carbon performance. First, the low-carbon operational characteristics of carbon capture power plants under integrated flexible operation modes and the load regulation principles of demand response are elaborated, analyzing their complementary roles in carbon reduction and constructing a coordinated operation framework for carbon capture power plants and demand response. Second, by applying the carbon emission flow theory, part of the carbon responsibility is allocated to the load side, and a carbon potential-electricity price joint response model is proposed to further enhance the load-side carbon reduction capability. Then, with the goal of minimizing system operating costs, a two-stage low-carbon economic dispatch model is developed based on the tiered carbon trading mechanism and the proposed source-load coordination framework, achieving synergistic optimization of the generation and load sides. Finally, a modified IEEE 39-bus system is used for multi-scenario comparative analysis, validating the proposed method's effectiveness in coordinating economic and low-carbon performance.

Key words: low-carbon economic dispatch, carbon emission flow theory, demand response, carbon capture power plant, tiered carbon trading mechanism