Optimal operation of urban multi-energy system via coordination of waste resourceful utilization and multi-energy storage

As promising means to improve urban waste disposal utilization and the comprehensive energy supply efficiency, the coordinated operation mode of waste energy supply and urban multi-energy system needs to make a profound study. However, the existing operation optimization theory ignores the interaction between waste energy supply, energy storage system and urban energy system, which will make it difficult to maximize waste energy supply and renewable energy utilization. In this study, an urban multi-energy system framework with waste resourceful utilization system (UWRUS) and multi-energy storage system (MESS) is proposed. Firstly, an UWRUS model is established by the relationship between the waste output, the maximum waste stockpile and the corresponding energy supply characteristics. Then, a MESS model is proposed to improve the multi-energy system operation flexibility. On this basis, an urban multi energy system optimal model based on waste resourceful and multi-energy storage collaborative is established. Finally, the proposed method is tested and verified by simulation comparison analysis. The results and experiences of the case studies show that the proposed coordinated model can improve the energy efficiency and operation economy. The energy utilization efficiency is 7.8 % more and total operation cost is 18.4 % less compared with existing methods.