Coordinated planning and operation of inter seasonal heat storage and P2G devices integrated to urban multi-energy system
Kun Yu, Zengguang Cen, Xingying Chen, Le Bu, Lei Gan, Zijie Huang, Jun Shen, Haochen Hua
Abstract
With the urbanization construction and the advancement of the carbon peaking and carbon neutrality goals, urban energy systems are characterized by coupling multi-energy networks and a high proportion of renewable energy. Urban energy systems need to improve the quality of energy use, as well as to achieve energy conservation and emission reduction. Inter-seasonal heat technology has satisfactory engineering application prospects in promoting renewable energy consumption and the energy supply of urban multi-energy systems. Considering inter-seasonal heat storage and electric hydrogen production, a joint optimization method of planning and operation is proposed for the urban multi-energy flow system. First, the operation framework of inter-seasonal heat storage and electric hydrogen production system is established, which clarifies the energy flow of the urban multi-energy system. Secondly, aiming at the goals of minimizing the equipment’s annual investment cost and the multi-energy system annual operation cost, combined with the time series period division method, a planning operation model has been established considering multi-objectives. Through case study, it is shown that the proposed model can promote the renewable energy consumption and reduce the operation cost of the whole system.