Improved performance of single sided axial flux for reduction in cogging torque (IMPACT)

Abstract

Pulsating torque contains two components, namely torque ripples and cogging torque. The decrease in pulsating torque is sought by the electrical machine designers. In PM machine design cogging torque is a concern since it adds undesirable harmonics to pulsating torque. Hence, in this paper a single-sided axial flux permanent magnet (AFPM) machine is proposed having an arc shaped skew magnets to reduce the cogging torque of a suggested machine. For high efficiency, stator sided iron must be unsaturated and torque ripples are nearby zero. Research aims to design and optimize Single Sided Slotless AFPM machines. Mathematical calculations and sizing equations are used to design the machine, and the simulation tools Finite Eliminate Method (FEM) is used to simulate the machine. Latin Hypercube Sampling (LHS) is used to create samples, kriging method is applied to approximate the model and optimized model is obtained by using Genetic Algorithm (GA).

Keywords

• Axial flux permanent magnet (AFPM) machine
• Finite eliminate method (FEM)
• Genetic algorithm (GA), Cogging torque
• Skewing