Multi-Objective Optimization of the Halbach Array Permanent Magnet Spherical Motor Based on Support Vector Machine
| Autor: | Bin Li, Hongfeng Li, Zigang Ma, Lifeng Cui |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Control and Optimization
Computer science SVM 020209 energy Energy Engineering and Power Technology Flux 02 engineering and technology lcsh:Technology Halbach array PMSM air-gap magnetic flux density GS algorithm PSO 01 natural sciences Multi-objective optimization law.invention law Control theory 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Engineering (miscellaneous) Leakage (electronics) 010302 applied physics lcsh:T Renewable Energy Sustainability and the Environment Rotor (electric) Particle swarm optimization Moment of inertia Finite element method Magnetic field Support vector machine Halbach array Magnet Energy (miscellaneous) |
| Zdroj: | Energies; Volume 13; Issue 21; Pages: 5704 Energies, Vol 13, Iss 5704, p 5704 (2020) |
| ISSN: | 1996-1073 |
| DOI: | 10.3390/en13215704 |
| Popis: | The fundamental harmonic amplitude and waveform distortion rate of the air-gap flux density directly affect the performance of a permanent magnet spherical motor (PMSM). Therefore, in the paper, the axial air-gap magnetic field including the end leakage of the Halbach array PMSM is analyzed and optimized. In order to reduce the calculation time of the objective function, the air gap magnetic field model adopts a non-linear regression model based on support vector machine (SVM). At the same time, the improved grid search (GS) algorithm is used to optimize the parameters of SVM model, which improves the efficiency and accuracy of parameter optimization. Considering the influence of moment of inertia on the dynamic response of the motor, the moment of inertia of the PMSM is calculated. This paper takes the air gap magnetic density fundamental wave amplitude, waveform distortion rate and rotor moment of inertia as the optimization objectives. The particle swarm optimization (PSO) algorithm is used to optimize the motor structure with multiple objectives. The optimal structure design of the PMSM is selected from all of non-dominated solutions by the technique for order preference by similarity to an ideal solution (TOPSIS). The performance of the motor before and after the optimization is analyzed by the method of finite element (FEM) and experimental verification. The results verify the effectiveness and efficiency of the optimization method for the optimal structure designing of the complex PMSM. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |