新型储能系统辅助燃煤机组灵活运行策略研究进展OA

Accelerating energy-structure transformation and building the new power systems are among the important measures for China to achieve the goals of"carbon peaking"and"carbon neutrality".Large-scale new energy access to the power grid imposes higher requirements on traditional coal-fired units to participate in the process of peak regulation and frequency regulation.Equipping coal-fired units with new-type energy-storage systems can effectively improve their flexible operation capability.To this end,based on an analysis of the factors affecting the operational flexibility of coal-fired units,this paper firstly introduces the new-type energy-storage modes commonly adopted for coal-power coupled operation together with their technical characteristics.Secondly,it reviews the coupling modes,operation and control modes,as well as energy storage capacity allocation strategies of existing thermal-power and energy-storage systems,and summarizes and analyzes the characteristics and applicable scenarios of various strategies.Thirdly,the joint-operation process of energy-storage systems assisting coal-fired units is analyzed combined with practical engineering cases.Finally,on the basis of existing researches,the challenges and prospects for future development are discussed.