Modeling of Three-Winding Transformer Based on Shifted-Frequency Transformation

Le résumé fourni par la source

In order to solve the problems of small step-size and low efficiency of traditional electromagnetic transient (EMT) simulation of power system, a large-step shifted frequency-based EMT (SFEMT) simulation method has been proposed in literature. However, there is still a lack of SFEMT model for three-winding transformer, which makes it difficult to realize SFEMT simulation of large-scale ac power grid. To this end, an SFEMT simulation model of three-winding transformer is proposed. First, the principle of SFEMT modeling and simulation is introduced. Then, the SFEMT models of three-winding transformer are constructed, respectively. Finally, the proposed models are tested on both small-scale and large-scale systems and the accuracy and efficiency of the proposed model of three-winding transformer are validated.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.