为促进风能、太阳能等清洁能源的消纳问题，燃煤机组不断参与深度调峰，亟需对热电联产机组进行灵活性改造。针对某660MW纯凝机组，建立了中间抽汽供热仿真模型，在此基础上构建配置电锅炉供热（方案一）、配置吸收式热泵供热（方案二）以及电锅炉和吸收式热泵联合供热（方案三）等三种方案；采用NSGA-Ⅱ和TOPSIS分析法对方案三的容量配置进行了优化，并深入分析了不同方案下在热电解耦能力和热经济性的表现。结果表明:相比于吸收式热泵供热，电锅炉供热能够极大提高机组的灵活性能力，但其热经济性较差。而联合使用电锅炉和吸收式热泵既能有效提升机组的热电解耦能力，又能均衡系统的热经济性，其最小电负荷可降至30.37MW，灵活性能力显著提升。

In order to promote the absorption of clean energy such as wind energy and solar energy, coal-fired units continue to participate in deep peak regulation, and it is urgent to carry out flexible transformation of cogeneration units. Based on the simulation model of intermediate extraction steam heating for a 660MW pure condensing power unit, three schemes of electric boiler heating (scheme 1), absorption heat pump heating (scheme 2) and combined heat supply of electric boiler and absorption heat pump (Scheme 3) are proposed. The NSGA-Ⅱ and TOPSIS analysis methods were used to optimize the capacity configuration of Scheme 3, and the performance of thermoelectric decoupling capacity and thermal economy under different schemes was deeply analyzed. The results show that compared with absorption heat pump heating, electric boiler heating can greatly improve the flexibility of the unit with the expense of thermal economy. The integrated configuration of electric boiler and absorption heat pump can not only effectively improve the thermoelectric decoupling capacity of the unit, but also balance the thermal economy of the system, the minimum electric load can be reduced to 30.37MW, and the flexibility is significantly improved.