Co-Energy-Based Lookup Table Model for DC-Excited Flux-Switching Motor: Study at Vehicle Level

Abstract

This paper concerns an initial simplified steadystate method to start to evaluate the behavior of a dc-excited fluxswitching motor at a steady-state, or slow dynamic, vehicle level. Starting from a simplified finite-element motor representation, a two-dimensional co-energy lookup table model is extracted. Then, a model reduction is performed to create steady-state loss maps of the system parts at different torque-speed points, considering the simplified losses. These loss maps are integrated into an electric vehicle model, where a discussion is introduced to illustrate the limitation of using efficiency maps. Finally, to determine an average efficiency of the electrical powertrain during drive cycles, a fast simplified steady-state calculation is performed.

Performance Comparison between Salient and Segmental Rotors Single-Phase FEFSM Using Non-Overlap Windings for Home Appliances

“…Recently, a three-phase FEFSM with salient rotor structure has been introduced with their advantages of easy rotor temperature removal and controllable FEC magnetic flux particularly suitable for applications that require high torque, and high power performances [10]. Besides, the single piece of salient rotor structure with robust performance at high speed condition give an advantage to the FEFSM [11]. While, single-phase FEFSM with overlap windings technique for low cost and low torque applications such as axial fan and pump have been introduced in 2003 [12].…”