Necessity and feasibility of involving new fast energy storage systems in power grid frequency regulation are studied in this paper. Firstly

by analyzing the basic frequency characteristics of region grids and traditional generators and the frequency regulation performance of an actual grid containing traditional storage systems（ pump storage plants）

the necessity of involving new fast energy storage systems in frequency regulation is illustrated. Then

by analyzing the technical and economic performance of new fast energy storage systems and their control mode in frequency regulation

the feasibility of their involvement in frequency regulation is proved. Finally

based on Chang-Zhu-Tan（ CZT） Grid Case

the improvement scale of tie-line power control performances is measured through simulations. The results show that involving new fast energy storage systems can optimize the dispatching strategy and improve the coordination between networks.