Optimization of Capacity Allocation for Coupling of Various Heat Supply Transformations under Deep Peak Regulation
In order to promote the absorption of clean energy such as wind energy and solar energy,coal-fired units continued to participate in deep peak regulation,and it was urgent to carry out flexible trans-formation of cogeneration units.Based on the simulation model of intermediate extraction steam heating for a 660 MW pure condensing 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)were proposed.The non-dominated sorting genetic algorithms-Ⅱ(NSGA-Ⅱ)and the tech-nique for order preference by similarity to ideal solution(TOPSIS)analysis methods were used to opti-mize 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 30.37 MW,and the flexi-bility is significantly improved.
deep peak regulationthermoelectric decouplingflexible transformationcapacity allocation
万方数据
维普
