Combined Electricity-Heat Operation System Containing Large Capacity Thermal Energy Storage

TLDR: In this paper, the authors analyzed the match of energy production and consumption in the combined electricity and heat system containing large capacity thermal energy storage, and suggested the diversity and complementarity between the two systems, the static and dynamic models of the combined system, the optimal design of thermal storage devices in various application accessions, and the optimal control strategy and energy management method of electrical and thermal energies.

Abstract: To meet the demand of large-scale renewable energy integration,the allocation capability of the energy system in large time and space scope should be improved.Energy storage is an effective way to achieve this goal,and it is generally studied within power systems.Out of the power systems scope,this paper analyzed the match of energy production and consumption in the combined electricity and heat system containing large capacity thermal energy storage.The combined system containing two forms of energy with different characteristics can make use of the advantages of both the electrical system and the thermal system so as to promote the allocation capability of the energy system in large time and space scope.The following research priorities were suggested:the diversity and complementarity between the two systems,the static and dynamic models of the combined system,the optimal design of thermal storage devices in various application accessions,and the optimal control strategy and energy management method of electrical and thermal energies.