Magneto-Thermal Analysis of an Axial-Flux Permanent-Magnet-Assisted Eddy-Current Brake at High-Temperature Working Conditions

This article proposes an analytic coupled magneto-thermal analysis of axial-flux (AF) permanent-magnet-assisted (PMA) eddy-current brake (ECB) at high-temperature working conditions. In the topology investigated, permanent magnets (PMs) are placed into stator slot openings to increase braking torque production capability. modification enables control magnet flux by altering dc excitation current. However, utilization PMs will make construction vulnerable high operating temperatures simply because properties and capability strongly dependent on temperature. Such problems require complex multiphysics finite-element analyses obtain actual performance. The proposed approach offers a simple effective solution that consists magnetic thermal models, which each other in time domain. nonlinear electrical, magnetic, influenced temperature variation time. An AF-PMA-ECB prototype is manufactured validate models experimental studies confirm provides very practical results determine conditions operations.