Finite-Element-Based Multiobjective Design Optimization Procedure of Interior Permanent Magnet Synchronous Motors for Wide Constant-Power Region Operation

Abstract

This paper proposes the design optimization procedure of three-phase interior permanent magnet (IPM) synchronous motors with minimum weight, maximum power output, and suitability for wide constant-power region operation. The particular rotor geometry of the IPM synchronous motor and the presence of several variables and constraints make the design problem very complicated. The authors propose to combine an accurate finite-element analysis with a multiobjective optimization procedure using a new algorithm belonging to the class of controlled random search algorithms. The optimization procedure has been employed to design two IPM motors for industrial application and a city electrical scooter. A prototype has been realized and tested. The comparison between the predicted and measured performances shows the reliability of the simulation results and the effectiveness, versatility, and robustness of the proposed procedure

A switched-reluctance motor for aerospace application

“…The preliminary design of the 10/8 SRM has been gradually refined by an optimization algorithm that has been combined with the 2D FE model; this algorithm belongs to the class of Controlled Random Search algorithms [10].…”

Comparison of in-wheel permanent magnet motors for electric traction

“…The concept of Pareto nondomination is utilized to produce an optimum solutions front [7,14]. The latter feeds an automated SMPM motor design script, generating a 2D Finite Element (FE) model corresponding to each optimization run, thus allowing for precise computation of the objective function values.…”

“…A favorable and competitive motor topology towards this direction is Surface Mounted Permanent Magnet (SMPM) motors [5,6] combined with a Fractional Slot Concentrated Winding (FSCW) configuration offering beneficial characteristics [7,8]. The nature of the application specifications, regarding both performance and efficiency, in conjunction with the needs for high power quality and reduced weight, have highlighted the necessity of the thorough investigation of their operational characteristics and behavior as well as their systematized optimization [9][10][11][12][13][14].…”

Electromagnetic Structure Design Study of Fault-Tolerant Interior Permanent Magnet Machines for Electric Vehicles Using Harmonic Order Shaping

“…Meanwhile, benefiting from high torque density, high efficiency and excellent dynamic performance, PM machines have been applied widely from rail transit to aerospace [1][2][3]. Interior PM (IPM) machines have gained more concerns for EVs because they have good fluxweakening capability and wide constant-power speed range [4,5]. Meanwhile, the fault-tolerant capacity is also considerably significant for EVs.…”