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In the preliminary design process of switched reluctance machine (SRM), adjusting the number of wingding turns or cross-sectional area of conductor to optimize windings design has dramatic effects on the performances like torque density, efficiency and thermal dissipation and so on. However, the difficulty exists on how to guarantee these performances while optimizing winding design. This paper proposes...
This paper examines the no load torque ripple variation for a novel surface-mounted permanent-magnet synchronous motor (PMSM) with Anti-rotation Dual rotors (ADR). It is shown that in addition to the size of the slots/tooth on the stator, the relative to the initial position between the inside and outside rotors, the size and materials of the stator fasteners are also key factors in determining the...
This paper presents a general analytical method taking into account the slotting effect for the open-circuit magnetic field in surface-mounted permanent-magnet machines with any pole and slot combinations. A new analytical solution based on 2-D analysis in polar coordinates and suitable for radial/parallel magnetization, internal/external rotor topologies is developed. In order to accurately calculate...
In order to improve the wind energy utilization factor of wind-power generation system, a new type of Permanent Magnet Synchronous Generator(PMSG) with Opposite-rotation Dual Rotors(ODR) has been proposed in this paper, mechanical structure and operation mechanism have been discussed. Magnetic field has been analyzed by FEM and circuit method. Magnetic flux, flux density and EMF are calculated to...
In order to improve operation performance of underwater vehicle anti-rotation propulsion system, a novel PMSM with Anti-rotation Dual rotor is proposed. It can be substantially simplify system structure, decrease volume and cost, moreover, improve reliability without brush and slip-ring. After the principles of operation, structure, and features are discussed, Design methodology is given. Both the...
A new type of PMSM with double rotors, used in underwater vehicle, makes the propulsion devices become simpler and more efficient. The structure of this motor is greatly different with the conventional ones, and the study of control strategy for this motor is on the primary stage. In this paper, the structure of the motor which is used in underwater vehicle system is introduced. To control the speed...
A novel PMSM with Anti-rotation Dual rotor is proposed in order to improve operation performance of underwater vehicle anti-rotation propulsion system. It can be substantially simplify system structure, decrease volume, reduce mass and cost, moreover, improve reliability without brush and slip-ring. After the principles of operation, configurations, and features are discussed, design methodology is...
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