含碳捕集-电转气的风光火储一体化系统优化运行

Operation Optimization for Integrated System of Wind-PV-Thermal-Storage with CC-P2G

碳捕集、电转气装置能够利用系统富裕新能源捕集火电燃烧所产生的碳排放,并生成燃气,形成碳资源循环利用链.为降低系统碳排放,促进新能源消纳,提升系统运行灵活性,提出含碳捕集-电转气(CC-P2G)的风光火储一体化系统架构,并设计其优化运行模型.重点讨论该架构电能流和碳流的运行特性;考虑配额制下碳排放交易收益,以一体化系统综合效益最大化为目标,综合考虑各类设备运行特性,提出其优化运行模型.算例验证了CC-P2G系统在提升新能源消纳能力和系统运行效益方面的效用.结果表明,CC-P2G系统与碳排放配额交易等市场机制有效配合,能够在降低系统整体碳排放的同时提升运行效益.

The carbon capture(CC)and power to gas(P2G)devices can utilize the abundant new energy of the system to capture the carbon emissions generated by thermal power combustion and generate usable gas,forming a carbon resource recycling chain.In order to reduce the carbon emission of the power system,promote new energy absorption,and improve the operation flexibility of the power system,an integrated system architecture including CC and P2G is proposed and its optimization operation model is designed.The operational characteristics of power flow and carbon flow in this architecture are mainly discussed.Considering the benefits of carbon emission trading under the quota system,an optimized operation model for the integrated system of wind-PV-thermal-storage with CC-P2G is proposed,aimed at maximizing the comprehensive benefits of the integrated system and taking the operation characteristics of various equipment as constraint conditions.Furthermore,the effectiveness of the CC-P2G system in improving new energy consumption capacity and system operation efficiency is verified.The results show that the participation of the CC-P2G system needs to be effectively coordinated with market mechanisms such as carbon emissions quota trading,which can reduce the overall carbon emissions of the system and improve its operation efficiency.