Abstract：To enhance the economic and operational flexibility of accompanying energy storage facilities in

new energy power stations，as well as to improve the stability of supplying electricity directly to large users and the

grid-friendliness of large-scale new energy power stations，a two-stage robust configuration and optimized

operation strategy for hybrid energy storage on the generation side was proposed. In the first stage，based on the

empirical mode decomposition and Hilbert-Huang transform of demand power signals，considering the investment

cost of energy storage and the supply-demand requirements of new energy power stations and grid integration，a

robust configuration model for various types of energy storage units in the hybrid system was constructed. In the

second stage，with the first-stage optimized configuration as a constraint，an optimization model for the operation of hybrid energy storage was developed with the objective of reducing net load fluctuations while meeting the power supply requirements of the power station and grid integration. The effectiveness and competitiveness of the

proposed models and strategies were demonstrated through case studies using actual wind power and load data

from a certain province，providing technical support and decision-making references for the coordinated

development of new energy power stations and energy storage.

      Key words：new energy power stations；energy storage facilities；robust configuration；optimized operation；

grid-friendliness