Windage loss reduction for hybrid excitation flux switching motors based on rotor structure design

2017 ◽  
Author(s):  
Yasuhiro Okada ◽  
Takashi Kosaka ◽  
Nobuyuki Matsui
Keyword(s):  
Structure Design ◽  
Loss Reduction ◽  
Hybrid Excitation ◽  
Rotor Structure

scholarly journals Numerical Optimization Simulation of Synchronous Four-Wing Rotor

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5353
Author(s):  
Kongshuo Wang ◽  
Haichao Liu ◽  
Tianhao Chang ◽  
Deshang Han ◽  
Yiren Pan ◽  
...  
Keyword(s):  
Parametric Design ◽  
Fitness Function ◽  
Pso Algorithm ◽  
Practical Experience ◽  
Structure Design ◽  
Before And After ◽  
Optimization Simulation ◽  
Distribution Index ◽  
New Ideas ◽  
Rotor Structure

The mixer is the most widely used batch mixing equipment in the rubber industry. The rotor is a core component and has a great impact on the mixing effect of the equipment. The current rotor structure design is done empirically, being tightly dependent on practical experience. This paper proposes a method for optimizing the rotor structure by using optimization algorithms combined with numerical simulation technology. Using MATLAB software, a parametric design program for synchronous rotors and a set of optimization programs for the particle swarm optimization (PSO) algorithm were written. The global distribution index was used as the fitness function to optimize the synchronous rotor configuration. A comparative analysis of the rotors before and after optimization shows that the optimization process is feasible, and the results are reliable. This provides new ideas for the design and development of mixer rotors.

Performance Comparison and Analysis of (HEFSM) and (FEFSM) Using Segmental Rotor Structure

2014 ◽  
Vol 695 ◽  
pp. 778-782 ◽  
Author(s):  
Hassan Ali Soomro ◽  
Erwan Sulaiman ◽  
Mohd Fairoz Omar
Keyword(s):  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Performance Comparison ◽  
Flux Linkage ◽  
Element Analysis ◽  
Cogging Torque ◽  
Hybrid Excitation ◽  
Current Densities ◽  
Rotor Structure ◽  
Segmental Rotor

This paper presents a new structure of hybrid excitation flux switching motor (HEFSM) using segmental rotor and the comparison of HEFSM and FEFSM using segmental rotor is performed to find the best candidate for hybrid electric vehicles (HEV). (HEFSM) using segmental rotor contains both the FEC and PM on the stator to produce maximum flux linkages. Initially, the coil arrangement tests are examined to validate the operating principle of the (HEFSM) using segmental rotor. Moreover the profile of flux linkage, cogging torque, and torque characteristics at various armature current densities of both the (HEFSM) and (FEFSM) using segmental rotor are observed based on 2D-finite element analysis (FEA). Initially performances show that HEFSM using segmental rotor produces torque of 18 Nm with low cogging torque and sinusoidal flux waveform. Thus by further design optimization the proposed motor will effectively achieve the target performances.

The Wound-Rotor Design and Finite Element Analysis of Wound-Rotor Brushless Double-Feed Motor

2013 ◽  
Vol 791-793 ◽  
pp. 813-817
Author(s):  
Xiao Peng ◽  
Yun Xiong Song ◽  
Wan Tai Liu
Keyword(s):  
Finite Element ◽  
Harmonic Spectrum ◽  
Structure Design ◽  
Air Gap ◽  
Element Analysis ◽  
Transient Electromagnetic ◽  
Doubly Fed ◽  
Air Gap Magnetic Field ◽  
Doubly Fed Machine ◽  
Rotor Structure

In this paper, firstly the operation principle of the brushless double-fed motor is introduced. Secondly by means of the single-pole slot-number phase diagram, the rotor windings are designed and analyzed, and it is proved that the designed motor can assure the equality of the induced branch EMF and satisfy the demands of other electrical properties. Finally, on the basis of analyzing the design principle of the BDFM, the Ansoft/Maxwell is used to establish the model of doubly-fed brushless machine with the wound rotor, the 2-D transient electromagnetic fields of brushless doubly-fed machine (BDFM) is calculated by finite element method, the magnetic force line and air-gap magnetic field is got, and the air-gap magnetic fields is analyzed by the harmonic spectrum. After the analysis of the finite element, the design of the BDFM with wound rotor structure can be achieved in this paper, and it provides the foundation for the rotor structure design optimization of BDFM and it also provides guiding significance for the BDFM.

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