为提高综合能源系统经济效益和运行灵活性,从源-储-荷3个层面研究分析综合能源系统运行机理,构建含太阳能热发电站、电转气及可控负荷在内的综合能源系统协调优化调度模型。首先,提出电耦合太阳能热发电站,实现电-热能量转换以及热能存储一体化;其次,建立电转氢气与电转天然气的双层能量优化控制策略,为可再生能源存储及消纳提供新的途径;最后,综合考虑电负荷需求响应及热柔性负荷的影响机制,有效提高负荷侧供给可靠性。依托内蒙古某工业园区实际数据,验证多场景、多能源配置下的调度可行性。结果显示,考虑可控负荷的调度模型可有效降低工业园区运行成本,减少CO2排放,实现综合能源系统的协同调度。
Abstract
To improve the economic benefits and operational flexibility of the integrated energy system, the complex operation mechanism of integrated energy is studied and analyzed from three levels of “generation, storage and load”, then a scheduling model of integrated energy system including concentrating solar power station, power to gas and controllable load is built. Firstly, an electric-coupled photothermal power station is proposed to realize the integration of electric-thermal energy conversion and thermal energy storage. Secondly, the double-layer energy optimization control strategy of power to hydrogen and power to gas is established, which provides a new way for renewable energy storage and dissipation. Finally, comprehensively consider the impact of electric load demand response and thermal flexible load to ensure power supply. Based on the actual data of an industrial park in Inner Mongolia, the feasibility of scheduling is verified under multi scenario and multi energy configuration. The simulation results show that the proposed model can reduce operating costs and reduce CO2 emissions effectively, which further realize coordinated dispatching of integrated energy system.
关键词
综合能源系统 /
太阳能热发电站 /
电转气 /
需求响应 /
优化调度
Key words
integrated energy system /
CSP /
power to gas /
demand response /
optimal scheduling
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基金
国家自然科学基金（51967016）; 内蒙古自治区科技重大专项项目（2019ZD027）; 内蒙古自治区重点研发和成果转化项目（2023YFHH0077; 2023YFHH0097）
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