计及液态空气储能与综合需求响应的综合能源系统低碳经济调度

Low-carbon economic dispatching of integrated energy system considering liquid air energy storage and integrated demand response

提高供应侧风电、光伏等清洁能源的消纳,降低传统火电机组的碳排放是实现能源结构转型以及碳达峰、碳中和的重要手段。针对能源系统低碳运行的问题,提出了一种包含储液式碳捕集电厂、电转气、液化天然气气化站以及利用液化天然气冷能的液态空气储能的综合能源系统低碳经济调度策略,并结合需求侧的响应策略,从供需两侧联合调度以实现综合能源系统的经济性和低碳性。最后,以改进的IEEE 30节点电力系统与6节点天然气系统为例,验证了所提出的低碳经济调度策略可以提高系统的风电消纳,减少系统的碳排放量,削峰填谷效果更为明显,并可有效降低系统运行的总成本。

Increasing the consumption of clean energy such as wind power and photovoltaic at the supply side,and reducing the carbon emission of traditional thermal power units are important means to realize the transformation of energy structure as well as carbon peaking and carbon neutralization.As for the lowcarbon operation of energy system,a low-carbon economic dispatching strategy of the integrated energy system that includes reservoir-type carbon capture power plant,power-to-gas,LNG(Liquefied Natural Gas)vaporizing station,and liquid air energy storage using cold energy of LNG is proposed.And combined with the demandside response strategy,the joint dispatching from both supply and demand sides is adopted to achieve the economy and low carbon of integrated energy system.Finally,the improved IEEE 30-bus power system and 6-node natural gas system is taken as an example to verify that the proposed low-carbon economic dispatching strategy can improve the consumption of wind power,reduce the carbon emission of system,enhance the performance of peak shaving,and reduce the total operation cost of system effectively.