Thermal Modeling and Analysis of a Double-Stator Switched Reluctance Motor

Arbab, Nasim; Wang, Wei; Lin, Chenjie; Hearron, Joseph; Fahimi, Babak

doi:10.1109/tec.2015.2424400

Cited by 91 publications

(44 citation statements)

References 16 publications

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“…Although numerical methods such as finite element analysis (FEA) and computational fluid dynamics are very accurate methods to analyze electric machines thermally, e.g. [3], the analytical approach can help designers calculate the temperature variation under certain boundary conditions more quickly [1]. More importantly, they give insight that help designers understand heat transfer mechanisms and main heat flow paths.…”

Section: Fig 2 Thermal Test Setup With a Large Test Benchmentioning

confidence: 99%

A thermal equivalent circuit to quantify the effect of thermal paste on heat flow through a PM machine

Kulan

Baker

2017

2017 IEEE International Electric Machines and Drives Conference (IEMDC)

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This paper describes the thermal modeling approach of a permanent magnet alternator (PMA), developed to investigate the quantitative effect of thermal paste added into the machine end winding region. A thermal lumped parameter network is proposed to investigate the principal heat flow paths for a flange mounted alternator. The thermal model is implemented in Simulink, which allows many different heat paths to be easily combined. Since addition of a thermal paste introduces new axial heat flow by conduction paths between the stator windings and frame, the developed thermal network considers the detailed heat flow paths when thermal paste is present. Experimental results are presented which validate the results.

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Section: Fig 2 Thermal Test Setup With a Large Test Benchmentioning

confidence: 99%

A thermal equivalent circuit to quantify the effect of thermal paste on heat flow through a PM machine

Kulan

Baker

2017

2017 IEEE International Electric Machines and Drives Conference (IEMDC)

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“…As can be seen from Equations (4) and (5), they are similar in form to the Ohm's law for electric circuit; i.e., Q is analogous to the current, δ/Aλ i and 1/Ah are analogous to the resistances and ∆t i is analogous to the voltage. Therefore, the heat conduction can be expressed in the form of electric circuit, as shown in Figure 2.…”

Section: Lumped Parameter Thermal Networkmentioning

confidence: 98%

“…Thermal analysis is extremely important for the electrical machine design, because overheating will accelerate insulation aging, demagnetize permanent magnets, and even cause system failure [1]. In general, there are three kinds of method for thermal analysis; i.e., the finite element method (EFM), computational fluid dynamics (CFD) and the lumped-parameter thermal network (LPTN) [2][3][4][5]. FEM and CFD both belong to the numerical method that can build meshed models of complex systems conveniently, and calculate the temperature distribution accurately [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

An Improved LPTN Method for Determining the Maximum Winding Temperature of a U-Core Motor

Yan

Cao

2020

Energies

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In a traditional lumped-parameter thermal network, no distinction is made between the heat and non-heat sources, resulting in both larger heat flux and temperature drop in the uniform heat source. In this paper, an improved lumped-parameter thermal network is proposed to deal with such problems. The innovative aspect of this proposed method is that it considers the influence of heat flux change in the heat source, and then gives a half-resistance theory for the heat source to achieve the temperature drop balance. In addition, the coupling relationship between the boundary temperature and loading position of the heat generator is also added in the lumped-parameter thermal network, so as to amend the loading position and nodes’ temperature through iterations. This approach breaks the limitation of the traditional lumped-parameter thermal network: that the heat generator can only be loaded at the midpoint, which is critical to determining the maximum temperature in asymmetric heat dissipation. By adjusting the location of heat generator and thermal resistances of each branch, the accuracy of temperature prediction is further improved. A simulation and an experiment on a U-core motor show that the improved lumped-parameter thermal network not only achieves higher accuracy than the traditional one, but also determines the loading position of the heat generator well.

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“…An electromagnetic finite-element method is used to calculate force density at various parts of the stator surface in both machines. In [4], thermal modeling and analysis of DSSRM were presented. A three-dimensional finite-element method (FEM) has been used to numerically calculate the temperature distribution in different parts of the machine.…”

Section: Introductionmentioning

confidence: 99%

Rapid Optimization of Double-Stators Switched Reluctance Motor with Equivalent Magnetic Circuit

Yao

2017

Energies

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Abstract:The primary objective for this paper is to create a methodology to rapidly optimize double-stators switched reluctance motor (DSSRM). An analytical model of equivalent magnetic circuits for the air gap reluctances of aligned and unaligned positions is proposed and the optimal operation point of the magneto-motive force (MMF) can be determined. Genetic algorithm (GA) integrated of the proposed equivalent magnetic circuit is developed for rapid optimization of DSSRM to reach the maximum of the ratio of torque to volume of DSSRM. Compared to conventional switched reluctance motor (SRM), an illustrated example of a 3-KW three-phase 12-Slot-8-Pole DSSRM is used to verify the efficiency of the proposed method. Simplified 2-D electromagnetic models are analyzed and simulated. Finally, results of the analytical calculations and the finite-element analysis (FEA) are validated by the proposed motor to show the accuracy of the designed strategy.

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Thermal Modeling and Analysis of a Double-Stator Switched Reluctance Motor

Cited by 91 publications

References 16 publications

A thermal equivalent circuit to quantify the effect of thermal paste on heat flow through a PM machine

A thermal equivalent circuit to quantify the effect of thermal paste on heat flow through a PM machine

An Improved LPTN Method for Determining the Maximum Winding Temperature of a U-Core Motor

Rapid Optimization of Double-Stators Switched Reluctance Motor with Equivalent Magnetic Circuit

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