Analysis of 3D static temperature field of water cooling induction motor in mini electric vehicle

Li, Cuiping; Pei, Yulong; Ni, Ronggang; Cheng, Shijie

doi:10.1109/icems.2011.6073618

Cited by 13 publications

(11 citation statements)

References 8 publications

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“…Resulting in an equivalent model of the stator ant rotor slot as shown in Figure 4. For multilayered components such as stator and rotor slot lining, the equivalent thermal conductivity λeq can be represented as [25]:…”

Section: Equivalent Model Of Stator and Rotor Windingsmentioning

confidence: 99%

“…Due to the complexity of the geometry and the complicated interaction between flow and heat transfer, an effective thermal conductivity λeff, which is a measure of the heat transfer capacity of the flowing air in the gap, is utilized. Steps involved in calculating the effective thermal conductivity are as follows [25]: For multilayered components such as stator and rotor slot lining, the equivalent thermal conductivity λ eq can be represented as [25]:…”

Section: Effective Thermal Conductivity Of Air Gapmentioning

confidence: 99%

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Three-D Numerical Thermal Analysis of Electric Motor with Cooling Jacket

Rehman

Seong

2018

Energies

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Abstract:The need of a sustainable clean future has paved the way for environmental friendly electric vehicle technology. In electric vehicles, overloading is limited by the maximum temperature rise in the electric motor. Although an improved cooling jacket design is of vital importance in lowering the maximum temperature of the motor, there has not been as much study in the thermal analysis of motors compared to electromagnetic design studies. In this study, a three-dimensional steady state numerical method is used to investigate the performance of a cooling jacket using water as the primary coolant of a three-phase induction motor with special emphasis on the maximum temperature and the required pumping power. The effective thermal conductivity approach is employed to model the stator winding, stator yoke, rotor winding and rotor yoke. Heat transfer by induced air is treated as forced convection at the motor ends and effective conductivity is obtained for air in the stator-rotor gap. Motor power losses, i.e., copper and iron losses, are treated as heat generation sources. The effect of bearings and end windings is not considered in the current model. Pressure and temperature distributions under various coolant flow rates, number of flow passes and different cooling jacket configurations are obtained. The study is successful in identifying the hot spots and understanding the critical parameters that affect the temperature profile. The cooling jacket configuration affects the region of maximum temperature inside the motor. Increasing the number of flow passes and coolant flow rate decreases maximum motor temperature but results in an increase in the pumping power. Of the cooling jacket configurations and operating conditions investigated, a cooling jacket with six passes at a flow rate of 10 LPM with two-port configuration was found to be optimal for a 90-kW induction motor for safe operation at the maximum output.

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Section: Equivalent Model Of Stator and Rotor Windingsmentioning

confidence: 99%

Section: Effective Thermal Conductivity Of Air Gapmentioning

confidence: 99%

Three-D Numerical Thermal Analysis of Electric Motor with Cooling Jacket

Rehman

Seong

2018

Energies

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“…There are possible ways of solving the problem: reducing losses in the elements of traction engines design [1,11] and increasing the efficiency of air-cooling system [2,9], as well as the installation of a water cooling system [4]. Optimization of the processes of designing the traction engines, common at the enterprises of leading electrotechnical manufacturers, makes it possible to create traction engines optimal by efficiency [2,12].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Temperature of the elements of design of traction engines increases over the time of operation and can exceed permissible structural limits [2,3]. This is especially true for temperature of the insulation of the motor windings, which is constrained by a class of the applied insulation [3,4]. To reduce temperature in the elements of design of engines, the cooling systems are employed that increase the efficiency of heat exchange in the engine design elements through the application of ventilation by air [5,6], by wa-…”

Section: Introductionmentioning

confidence: 99%

Optimization of thermal modes and cooling systems of the induction traction engines of trams

Liubarskyi

Петренко

Iakunin

et al. 2017

EEJET

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“…Copper losses, iron losses and mechanical losses from the operation of traction motors can raise machine parts to temperatures as high as 108 o C [16], 140 o C [17], and 200 o C [18], depending on size, age, geometry, cooling and drive cycle. In the aforementioned papers, the high and low frequency characteristics of induction motors have been studied using data at room temperature and ECMs.…”

Section: Introductionmentioning

confidence: 99%

Estimation of temperature dependent equivalent circuit parameters for traction-based electric machines

Agbaje¹,

Kavanagh²,

Sumisławska³

et al. 2013

Hybrid and Electric Vehicles Conference 2013 (HEVC 2013)

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Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders. CURVE is the Institutional Repository for Coventry University AbstractThe influence of temperature conditions on electric machine models is not well understood. This paper investigates modelling the temperature dependence of equivalent circuit parameters. Experiments have been performed on an induction machine to characterise its impedance response (up to 10 MHz) over the temperature range (22.4-210) o C. Using these measurements non-linear parameter estimation is performed using the Nelder-Mead method to derive temperature-dependent models, with an average absolute magnitude error of 270 Ω. The accuracy has been evaluated over the frequency range for the different temperatures and highlights where improvements are needed. This work has important applications in electric machine design and condition monitoring. Also it provides a valuable precursor towards developing age-dependent models for traction based applications.

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Analysis of 3D static temperature field of water cooling induction motor in mini electric vehicle

Cited by 13 publications

References 8 publications

Three-D Numerical Thermal Analysis of Electric Motor with Cooling Jacket

Three-D Numerical Thermal Analysis of Electric Motor with Cooling Jacket

Optimization of thermal modes and cooling systems of the induction traction engines of trams

Estimation of temperature dependent equivalent circuit parameters for traction-based electric machines

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