Rotor Optimization Design of Brushless Doubly-fed Generators Based on Kriging Surrogate Model
The brushless doubly fed generator,seen as a promising mainstream candidate for wind power sys-tems due to the absence of brushes and slip rings,relies on rotor magnetic field modulation for electrome-chanical energy conversion.A novel series cage bar-assisted magnetic barrier rotor structure was proposed in this paper.It investigated the impact of different rotor structural parameters on motor performance and intro-duces a rotor optimization design method for the brushless doubly fed generator using a multi-objective differ-ential evolution algorithm based on the Kriging surrogate model.The method started with establishing a para-metric model of the innovative rotor,then used the Kriging model to map the relationship between optimiza-tion variables and objectives,followed by the multi-objective differential evolution algorithm to identify the optimal variable combination,and finally,finite element simulation to analyze the motor's performance.
brushless doubly-fed generatorseries cage bar magnetic barrier rotorKriging modelmulti-objectivedifferential evolution algorithm