... inductance L μ is whenever much higher than the leakage inductance l ′ a a . PMSM Damper NVH Optimization Noise reduction PWM Harmonic Efficiency Joule loss Equivalent circuit Capacitance With increasing attention to electromagnetic noise and vibration...

...Hongli Xu; Chen Wang Purpose This paper proposes a spoke-type fractional-slot concentrated windings (FSCW) permanent magnet (PM) machine for special vehicle driving systems to obtain higher torque and power density, high efficiency and wide field-weakening range. To enhance the efficiencies...

... on equivalent magnetic circuit (EMC) method. Then, the RS model and modified SA-CS algorithm are proposed to obtain higher torque, lower torque ripple and higher efficiency. Findings After verification by finite element method for no-load and load performance, the optimal machine has higher torque density...

... 2020 22 06 2020 © Emerald Publishing Limited 2020 Emerald Publishing Limited Licensed re-use rights only Eddy currents Permanent magnet machine Power losses Finite element method Rotor losses Modeling Efficiency Motor design Permanent magnet (PM) motors are used...

... such as efficiency and amount of transferred power. This paper discusses the main advantages and disadvantages of various compensation techniques to show their possible application areas. On the basis of these results, a designer will be able to quickly identify which compensation type suites as the best solution...

.../methodology/approach A novel rotor structure with rectangular PMs is discussed with respect to the demagnetization of ferrite magnets and mechanical strength. Some electromagnetic characteristics including torque, output power, loss and efficiency are calculated by 2D finite element analysis. Findings...

... pole machine always exhibit lower magnet eddy current loss than those of the 10‐ and 14‐rotor pole machines, respectively. The E‐ and C‐core machines use half the number and volume of magnets and also exhibit higher efficiency than those of the conventional SFPM machine. Originality/value...