Compensation for neglecting stator transients in power system models

An accurate simple model of alternators for power system stability studies has been developed. The model is based on a detailed model [1] the validity of which has been verified earlier. The simplification is achieved by omitting stator and transmission line transients from the detailed model and introducing a compensation for the omission. It has been shown that the compensation has to be included at every time step. Since the order of the model is lower than the detailed one its computational speed is faster and memory requirement is less. The accuracy of the simple model including the compensation has been proved to be outstanding by comparing the results of the model with those obtained from the detailed model.