考虑能量梯级利用和混合储能的综合能源系统运行优化OA

To improve the energy efficiency of existing hydrogen-integrated energy systems,this paper proposes a low-carbon operation optimization method for hydrogen-integrated energy systems that considers the combined impact of energy cascade utilization and hybrid energy storage.Firstly,the paper classifies thermal loads,and proposes a three-stage waste heat recovery strategy for the aforementioned equipment by coordinating the high-grade waste heat generated by the electricity-hydrogen high-temperature coupling equipment in the hydrogen-integrated energy system with traditional waste heat recovery.Secondly,a green certificate-step carbon coupled trading mechanism is put forward to calculate the carbon emissions offset by green certificates.Thirdly,a hybrid energy storage system composed of flywheel energy storage and batteries is adopted to handle fluctuations caused by the changes in electrical power.Finally,an operation and dispatch optimization model for the hydrogen-integrated energy system is established.Taking a park in northern China as an example for case analysis,a dispatch model aiming at minimizing the comprehensive operation cost is constructed,and the economic efficiency and effectiveness of the proposed method are verified through case studies.