Research of complete power network oscillation simulation model

A new design concept that both the oscillation frequency function and its derivation should be continuous is proposed.Based on this principle and the investigation of frequency variations during the transient process,the frequency diversification function during start-up stage and recover stage is reconsidered,especially that a negative-double-curve function with the attenuation characteristic is utilized to construct the frequency function of the recover stage.The oscillation frequency simulation is validated during some typical experiment.