Finite-Element-Based Efficiency Mapping of Dual-Converter-Driven Brushless Doubly-Fed Machines

Due to the complexity of structure, operating principle, and control purposes, it is challenging to design and analyze a brushless doubly-fed machine viewing from its overall performance across the entire operating range. This paper elaborates on an efficiency mapping method of a dual-converter-driven brushless doubly-fed machine using finite element method and data post-processing. The efficiency mapping method can characterize various electromagnetic properties over the operating range and provide insightful information for the design and control development of brushless doubly-fed machines.