6.Permanent magnet synchronous motor thermal analysis
Permanent magnet synchronous motors (PMSM) are used in a great variety of applications such as: electric toys, electric tools, medical/chemical industries, centrifuges at high speed, vehicle applications (motor starters), robot applications etc. All these have in common small size, high energy density, increased torque for a large speed range, high dynamics when high inertia is present. In consequence, such machines are subject to high thermal stresses during their operation. If these stresses are known then it is possible to adjust the machine's control parameters (such as voltage and current) depending on the load and the supplying
lumped thermal analysis network. The cooling effect of the wafters
present in the induction motor cage end-rings is also discussed.
8.A simple lumped parameter thermal model for electrical machine of
基于ANSYS的永磁同步电机 温度场分析专题资料集锦(三)
更新时间：2014-12-16
以下是小编整理的一些有关基于ANSYS的永磁同步电机温度场分析专题资料
（三），其中包括了一些案例文档及其文档简介和视频资料。有关文档的下 载，可以到研发埠网站的专题模块，输入相应的专题名，搜索到相应的专题
便可以找到相应的文档，或是到研发埠网站的版块输入相应的文档名查找。
1.Thermal modelling of a high speed permanent magnet synchronous
machine The thermal behavoir of permanent magnet synchronous machines (PMSMs) is important since overheating of the permanent magnets can lead to demagnetization. This article gives an overview of a hybrid thermal model for a high speed PMSM which combines lumped parameter and analytical models. The losses found in a slotless PMSM are also discussed since they are the heat sources. An overview of the experiments performed to determine some of the thermal parameters and verify the models are also given. It is shown that bearing loss can make a significant contribution to the thermal behavior of a
comparing its results with those obtained using detailed twodimensional and three-dimensional finite element thermal analysis. Relevant conclusions are drawn.
pulsewidth-modulation induction motor drive.
5.Solving the More Difficult Aspects of Electric Motor Thermal
Analysis in Small and Medium Size Industrial Induction Motors With the ever-increasing pressure on electric motor manufacturers to develop smaller and more efficient electric motors, there is a need for more thermal analysis in parallel with the traditional electromagnetic design. Attention to the thermal design can be rewarded by major improvements in the overall performance. Technical papers published to date highlight a number of thermal design issues that are difficult to analyze. This paper reviews some of these issues and gives advice on how to deal with them when developing algorithms for inclusion in design software.
permanent magnet (IPM) machine. An efficient quasi-3D lumped
parameter thermal model is described and then applied to a practical IPM machine. The analytical model is validated by
using detailed thermal finite element analysis.
3.Thermal analysis of a water-cooled interior permanent magnet traction machine This paper presents the thermal analysis of a watercooled interior
4.A Simplified Thermal Model for Variable-Speed Self-Cooled
Industrial Induction Motor In this paper, a simplified thermal model for variable speed selfcooled induction motors is proposed and experimentally verified. The thermal model is based on simple equations that are compared with more complex equations well known in the literature. The proposed thermal model allows one to predict the over temperature in the main parts of the motor, starting from the measured or the estimated losses in the machine. In the paper, the description of the thermal model setup is reported in detail. Finally, the model is used to define the correct power derating for a variable- speed
technique, in order to avoid overheating.
7.Influence of different end region cooling arrangements on endwinding heat transfer coefficients in electrical machines In this paper the influence of the end-winding heat transfer on the thermal analysis of induction motors is presented. Experimental tests on two induction motor configurations - Open Drip Proof (ODP) and Total Enclosed Fan Cooled (TEFC) frames – are performed and the heat transfer coefficients are determined and validated in a
machine.
2.Thermalr PM synchronous Machine
using lumped parameter model This paper presents a lumped-parameter thermal model for a multibarrier interior PM synchronous machine. The model consists of a network of 12 thermal resistances that make it possible to estimate temperatures at 9 critical points inside the machine including the stator end windings, rotor magnets, and the bearings. The details of the model are presented and two machines are analyzed, including a 6 kW 12-pole automotive starter/alternator and a 0.5 kW 4-pole electric water pump machine. The lumped-parameter model results for both machines demonstrate good agreement with results obtained