摘要
In this paper, a new type of pumped-storage power station with faster response speed, wider regulation range, and better stability is proposed. The operational flexible of the traditional pumped-storage power station can be improved with variable-speed pumped-storage tech no logy. Combined with chemical en ergy storage, the failure to achieve sec on d-order response speed and the insufficient safety and reliability of pumped-storage power units could be solved. With the better solar en ergy and site resources, the in teg rated performance can be improved by an optical storage system in stalled in future pumped-storage stations. Through the characteristics analysis of the new type of pumped-storage power station, three types of optimal station locations are proposed, namely, the load concentration area, new energy concentration area, and ultrahigh- voltage direct current receiver area. Taking the new pumped-storage power station as an example, the advantages of multi-energy cooperation and joint operation are analyzed. It can be predicted that the frequency and load regulation of the power grid will be more flexible, and the service capacity to the main power grid will be much stronger in the future.
In this paper,a new type of pumped-storage power station with faster response speed,wider regulation range,and better stability is proposed.The operational flexible of the traditional pumped-storage power station can be improved with variable-speed pumped-storage technology.Combined with chemical energy storage,the failure to achieve second-order response speed and the insufficient safety and reliability of pumped-storage power units could be solved.With the better solar energy and site resources,the integrated performance can be improved by an optical storage system installed in future pumped-storage stations.Through the characteristics analysis of the new type of pumped-storage power station,three types of optimal station locations are proposed,namely,the load concentration area,new energy concentration area,and ultrahigh-voltage direct current receiver area.Taking the new pumped-storage power station as an example,the advantages of multi-energy cooperation and joint operation are analyzed.It can be predicted that the frequency and load regulation of the power grid will be more flexible,and the service capacity to the main power grid will be much stronger in the future.
基金
supported by the State Grid Science and Technology Project(No.SGZJ0000KXJS1800313/Title 1:Research on Key Technologies Engineering Application of Large Variable Speed Pumped Storage Unit
No.SGTYHT/17-JS-199/Title 2:Study on Transient Characteristics Analysis of Variable Speed Pumped Storage Unit and Coordination Control Technology of Network Source)
