计及CHP机组备用电热综合能源系统分解协调调度方法研究

Research on decomposition-coordination dispatching method of combined heat and power system considering CHP unit reserve

文中提出一种考虑CHP机组备用能力挖掘的电热耦合系统分解协调调度方法,该方法分析了CHP机组抽汽调节控制灵活特性,量化了热力系统热备用协调量化关系。基于此,建立计及CHP机组备用的电热耦合调度模型。针对电热耦合系统的多主体特性,提出一种电热耦合系统分解协调调度方法。算例分析了计及CHP机组备用能力后电热耦合系统的运行效果,结果表明所提方法能通过利用CHP机组的备用能力提高电热耦合系统对风电的消纳能力以及系统运行的经济性能。

Therefore,a decomposition-coordination dispatching method of electricity/heat coupling system considering the mining of reserve capacity of CHP(combined heat and power)units is proposed.In this method,the flexible characteristics of CHP unit′s extraction regulation and control are analyzed,and the coordination and quantification relationship of heat reserve of the thermodynamic system is quantified.On this basis,an electricity/heat coupling dispatching model considering CHP unit reserve is established.A decomposition-coordination dispatching method for electricity/heat coupling system is proposed according to its multi-agent feature.The operation effect of electricity/heat coupling system considering the reserve capacity of CHP unit is analyzed with examples.The results show that the proposed method can improve the accommodation capacity of wind and power coupling system and the economic performance of system operation by the reserve capacity of CHP unit.