In pursuit of the “double carbon” objectives, converting high-carbon thermal power plants into carbon capture power plants is recognized as an effective measure to mitigate carbon emissions. In order to improve the economy of the system, an electric hydrogen generation unit is introduced, and an economic dispatch strategy that considers the combination of a flexible carbon capture power plant and electric hydrogen generation is proposed. Firstly, the low-carbon principle of the flexible carbon capture plant is introduced, and secondly, the joint operation structure of the flexible carbon capture plant, pumped storage, and hydrogen generation is constructed in order to fully exploit the synergistic operation potential of the hydrogen and carbon capture plants. On this basis, an economic dispatch model with the objective of the lowest combined system cost of the sum of system operation cost, system carbon trading cost, hydrogen production revenue, and wind and light abandonment cost is established, fuzzy parameters are used to characterize the uncertainty levels of wind and light, fuzzy opportunity constraints are established, and the model is solved using an improved sparrow search algorithm. The results of the example show that the proposed model reduces the comprehensive cost by 20.9% and carbon emissions by 61.77% compared with the existing model, which has significant low-carbon economic benefits.

为实现“双碳”目标，将高碳火电厂改造为碳捕集电厂被认为是减少碳排放的有效措施。为了提高系统的经济性，引入电制氢装置，并提出考虑柔性碳捕集电厂与电制氢相结合的经济调度策略。首先介绍了柔性碳捕集装置的低碳原理，其次构建了柔性碳捕集装置、抽水蓄能、制氢联合运行架构，充分挖掘氢能协同运行潜力和碳捕获工厂。在此基础上，建立了以系统运行成本、系统碳交易成本、制氢收入、风电弃光成本之和的系统综合成本最低为目标的经济调度模型，并采用模糊参数来表征建立了风和光的不确定性水平、模糊机会约束，并使用改进的麻雀搜索算法求解模型。算例结果表明，所提模型较现有模型综合成本降低20.9%，碳排放降低61.77%，具有显着的低碳经济效益。