基于碳捕集与封存-电转气-电解熔融盐协同的虚拟电厂优化调度

Optimal Scheduling of Virtual Power Plant Based on CCS-P2G-EMC Collaboration

为了应对气候变化,推动能源电力碳达峰、碳中和进程,提出一种以电解熔融盐(electrolyticmoltencarbonate,EMC)技术为基础的EMC碳捕集电厂,并且考虑了碳捕集与封存(carbon capture and storage,CCS)技术以及两段式电转气(power to gas,P2G),建立了基于CCS-P2G-EMC协同的虚拟电厂(virtual power plant,VPP)优化调度模型。首先,根据EMC技术的原理,考虑与燃气轮机热电联产(combined heatandpower,CHP)机组耦合,建立了EMC碳捕集电厂数学模型,并分析了EMC碳捕集电厂热电出力的灵活性。其次,构建了CCS-P2G-EMC协同框架,并对其低碳特性机理进行分析,并在此基础上建立低碳经济调度模型,实现了VPP的低碳经济运行。最后,通过设置不同场景进行对比,验证了所提调度模型的有效性,可在保证VPP经济效益的同时降低系统碳排放。

In order to cope with the climate changing and promote carbon peaking and carbon neutralizing process of the energy power,an EMC carbon capture power plant based on the electrolytic molten carbonate(EMC)technology is proposed.In addition,considering the carbon capture and storage(CCS)technology and the two-staged power to gas(P2G),a virtual power plant(VPP)optimized scheduling model is established based on the CCS-P2G-EMC collaboration.Firstly,according to the principle of the EMC technology and coupling with the gas turbine combined heat and power(CHP)unit,the mathematical model of EMC carbon capture power plant is established.Moreover,the flexibility of the thermoelectric output of the EMC carbon capture power plant is analyzed.Secondly,the collaborative framework of CCS-P2G-EMC is constructed,and its low-carbon characteristic mechanism is analyzed.On this basis,the low-carbon economy scheduling model is established to realize the low-carbon economy operation of the VPP.Finally,by setting different scenarios for comparisons,the effectiveness of the proposed scheduling model is verified,which is able to ensure the economic benefits of the VPP while reducing the carbon emission of the system.