A design method for permanent magnet synchronous motors by incorporating topology optimization and system parameter optimization based on the response surface methodology

2017 ◽  
Vol 2017.27 (0) ◽  
pp. 2101
Author(s):  
Shun MARUYAMA ◽  
Shintaro YAMASAKI ◽  
Kentaro YAJI ◽  
Kikuo FUJITA
Keyword(s):  
Response Surface Methodology ◽  
Topology Optimization ◽  
Permanent Magnet ◽  
Response Surface ◽  
Parameter Optimization ◽  
System Parameter ◽  
Design Method ◽  
Permanent Magnet Synchronous Motors ◽  
Synchronous Motors

scholarly journals Synchronization and Antisynchronization of N-Coupled Complex Permanent Magnet Synchronous Motor Systems with Ring Connection

Complexity ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-15 ◽  
Author(s):  
Cuimei Jiang ◽  
Shutang Liu
Keyword(s):  
Permanent Magnet ◽  
Chaotic Systems ◽  
Design Method ◽  
Permanent Magnet Synchronous Motor ◽  
Mathematical Expression ◽  
Permanent Magnet Synchronous Motors ◽  
Synchronous Motors ◽  
Direct Design ◽  
General Complex ◽  
Complex Chaotic Systems

This paper discusses synchronization and antisynchronization of N-coupled complex permanent magnet synchronous motors systems with ring connection. Based on the direct design method and antisymmetric structure, the appropriate controllers are designed to ensure the occurrence of synchronization and antisynchronization in an array of N-coupled general complex chaotic systems described by a unified mathematical expression with ring connection. The proposed method is flexible and is suitable both for design and for implementation in practice. Numerical results are plotted to show the rapid convergence of errors to zero and further verify the effectiveness and feasibility of the theoretical scheme.

Multi-material topology optimization of permanent magnet synchronous motors

2021 ◽  
pp. 1-12
Author(s):  
Sohyun Park ◽  
Jaejoon Lee ◽  
Jaewook Lee
Keyword(s):  
Topology Optimization ◽  
Permanent Magnet ◽  
Input Current ◽  
Heaviside Function ◽  
Magnetic Flux Density ◽  
Iron Core ◽  
Optimization Approach ◽  
Permanent Magnet Synchronous Motors ◽  
Heaviside Step Function ◽  
Synchronous Motors

This paper presents a multi-material topology optimization for the design of permanent magnet synchronous motors (PMSMs). Specifically, structural shapes of permanent magnet (PM) and iron core in a PMSM rotor are simultaneously designed together with the orientation of PM magnetization. For a co-design of PM and iron core, relative permeability and residual magnetic flux density are interpolated by the three-field density approach based on the Helmholtz filtering and regularized Heaviside step function. Here, the Helmholtz filtering aims to attain smooth border in design results, and the Heaviside function enables us to acquire a clear border (i.e. zero-one design) without intermediate densities. The optimization goal is set as maximizing the average torque of PMSMs. The average torque is calculated by Maxwell stress tensor (MST) method considering a maximum torque per ampere (MTPA) control. To validate the effectiveness of the proposed multi-material topology optimization approach, a PMSM rotor with 4 poles and 12 slots is designed. In addition, design results at various settings of input current amplitude and PM strength are compared and discussed. When the input current is stronger than the PM strength, rotor PM and iron core are designed for utilizing both PM and reluctance torque components like V-shape interior PMSMs. On the other hand, in the case of stronger PM strength, PM is designed near the air-gap, which utilizes only PM torque component like surface PMSMs.

Influence of unbalanced magnetic force on shaft deflection in permanent magnet synchronous motor with fractional slot concentrated windings

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1461-1468
Author(s):  
Ting Dong ◽  
Juyan Huang ◽  
Bing Peng ◽  
Ling Jian
Keyword(s):  
Permanent Magnet ◽  
Magnetic Force ◽  
Permanent Magnet Synchronous Motor ◽  
Operational Reliability ◽  
Topology Structure ◽  
Permanent Magnet Synchronous Motors ◽  
Synchronous Motors ◽  
Shaft Deflection ◽  
Large Length ◽  
Fractional Slot

The calculation accuracy of unbalanced magnetic forces (UMF) is very important to the design of rotor length, because it will effect the shaft deflection. But in some permanent magnet synchronous motors (PMSMs) with fractional slot concentrated windings (FSCW), the UMF caused by asymmetrical stator topology structure is not considered in the existing deflection calculation, which is very fatal for the operational reliability, especially for the PMSMs with the large length-diameter ratio, such as submersible PMSMs. Therefore, the part of UMF in the asymmetrical stator topology structure PMSMs caused by the choice of pole-slot combinations is analysized in this paper, and a more accurate rotor deflection calculation method is also proposed.

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