Winding thermal model for short-time thermal transient: Validation in motor operative conditions

Armando, Eric; Boglietti, Aldo; Carpaneto, Enrico; Cossale, Marco; Vaschetto, Silvio

doi:10.1109/iecon.2015.7392150

Cited by 6 publications

(2 citation statements)

References 15 publications

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“…The PMSM is cooled by the coolant with a constant temperature. The three‐phase input current is measured by the high precision current transducers simultaneously [30, 31].…”

Section: Experimental Validationmentioning

confidence: 99%

Improved hotspot monitoring method for thermal management system of automotive traction motor

Dong

Zhang

Zhu

et al. 2020

IET Electric Power Applications

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Hotspots in traction motors of electric vehicles are normally considered to locate in end windings due to the loose packaging and no access to iron cores for heat dissipation. To ensure safety, end winding temperatures are typically monitored by thermocouples in thermal management systems for real‐time cooling control. However, the authors’ study finds that slot winding temperatures will exceed end winding temperatures under high‐speed operations due to the much higher additional loss caused by the alternating flux. Hence, the thermocouple would underestimate the actual peak temperature in electric machines, causing insufficient cooling and potential damage to insulations. For cost savings, additional thermocouples monitoring slot winding temperatures are usually not equipped in the automotive industry. To calibrate the peak temperature of windings, this study proposes an innovative approach based on the thermo‐magnetic model of the traction motor, which provides the estimated slot winding temperatures only using the end winding sensors. As a result, the proposed method can provide much accurate peak temperatures for the thermal management system. Experimental tests validate the performance of the proposed method in improving the accuracy of hotspot monitoring.

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“…The PMSM is cooled by the coolant with a constant temperature. The three‐phase input current is measured by the high precision current transducers simultaneously [30, 31].…”

Section: Experimental Validationmentioning

confidence: 99%

Improved hotspot monitoring method for thermal management system of automotive traction motor

Dong

Zhang

Zhu

et al. 2020

IET Electric Power Applications

View full text Add to dashboard Cite

show abstract

“…Thermal transients of induction machines were considered in [15,18,[31][32][33][36][37][38][39][40][41][42][43][44]. Machine thermal models for short-term thermal transients and drivetrain design were featured in [37,38,43]. In [31,40], the short-term torque capability of an induction machine was analysed.…”

Section: Introductionmentioning

confidence: 99%

Induction cage machine thermal transients under lowered voltage quality

Gnaciński¹,

Pepliński²,

Hallmann³

et al. 2019

IET Electric Power Applications

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In many power systems, voltage parameters change over time. Variation of power quality disturbances causes thermal transients in electrical machines. Under volatile power quality disturbances, the windings temperature can reach an extremely high level. This problem might be especially important in the case of low-power motors, as they have comparatively short thermal time constants. In this study, thermal transients of an induction machine are analysed for time-varying power quality disturbances. The machine's thermal response to voltage deviation, voltage unbalance, and voltage waveform distortions is compared. The effect of fluctuating voltage unbalance on the heating of the windings is examined. The results of experimental investigations and numerical calculations are presented for two low-power, totally enclosed fan-cooled induction cage machines. It was found that voltage unbalance causes much faster heating of the windings than do other power quality disturbances and that the current power quality standards require revision.

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Analysis of different forced convection cooling systems for belt-driven starter-generator

Boglietti

Bojoi

Cavagnino

et al. 2015

IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

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Winding thermal model for short-time thermal transient: Validation in motor operative conditions

Cited by 6 publications

References 15 publications

Improved hotspot monitoring method for thermal management system of automotive traction motor

Improved hotspot monitoring method for thermal management system of automotive traction motor

Induction cage machine thermal transients under lowered voltage quality

Analysis of different forced convection cooling systems for belt-driven starter-generator

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