碳减排约束下风火发电商市场效益的协调优化

Coordinated Optimization of Market Benefit of Wind-fire Power Generator Under Carbon Reduction Constraint

灵活运行的碳捕集火电机组爬坡速率较快,将其与随机风电打捆形成新的风火发电商并整体协同参与调度,可克服风电的波动给系统带来的不利影响。在低碳环境下,以调度周期内该风火发电商在电能市场与碳排放权交易市场中的净效益最大为目标,以碳排放强度和碳排放总量为约束,建立风火发电商市场效益模型;以研究发电商优化运行策略,并探讨碳价、碳排放强度约束和碳排放总量约束的灵敏度影响。仿真结果表明,该风火发电商在低电价时段提高碳捕集水平,从碳市场获利;高电价时段降低碳捕集水平,增加并网发电功率。不同的碳价和碳排放约束水平,将导致碳捕集水平、各项成本收益和净碳排放量呈现不同的变化趋势。

The carbon capture fire power unit under flexible operation has a faster ramp rate,and if it is combined with random wind power to form a new wind-fire power generator,which participates in the collaborative scheduling as a whole,then the adverse effects of wind power fluctuations on the power system can be overcome.In a low-carbon envi?ronment,the maximum net income of this generator during the scheduling period in the electricity market and carbon trading market is taken as an objective,and the carbon emission intensity and total amount of carbon emissions as con?straints,thus a market benefit model of wind-fire power generator is established;on this basis,the optimal operation strategy for this generator is studied,and the sensitivities with respect to carbon price,constraints of carbon emission intensity,and the constraint of total amount of carbon emissions,are discussed.Simulation results show that in the low electricity price period,the wind-fire power generator will improve the carbon capture level and gain more profit from the carbon market;in comparison,in the high electricity price period,this generator will reduce the carbon capture lev?el and increase the grid-connected power.Under different carbon prices and carbon emission constraints,the carbon capture level,costs and benefits of different items,and net carbon emission amounts will show different changing trends.