Thermal modelling investigation of heat paths due to iron losses in synchronous machines

Mejuto, C.; Mueller, Markus; Shanel, M.; Mebarki, Abdeslam; Staton, D.A.

doi:10.1049/cp:20080516

Cited by 13 publications

(8 citation statements)

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“…The model calculates both the air flow and heat transfer in the machine. Air flow and temperature rise for all stator and rotor nodes were within 10% of the measured values [25].…”

Section: Thermal Network Based On Lumped Parameterssupporting

confidence: 64%

“…This refers to the number of sections used to model the electrical machine as a whole, or some of the more critical components, both in the axial and radial directions. In [25], studies have been performed to determine the required discretization level for a synchronous generator, with particular attention being given to the winding area. Due to its low thermal In the real winding, the heat generation is distributed over the section, and this paper highlights the impact upon accuracy of specifying such a loss in the discrete nodes.…”

Section: Thermal Network Based On Lumped Parametersmentioning

confidence: 99%

“…In many LPTNs, it is assumed that the loss distribution across the electrical machine is uniform; however, FEA results clearly illustrate the nonsymmetrical nature of the operational flux density and related power loss distribution inside the machine, as shown in Fig. 6 for a salient pole synchronous machine [25].…”

Section: Thermal Analysis Using Femmentioning

confidence: 99%

See 2 more Smart Citations

Evolution and Modern Approaches for Thermal Analysis of Electrical Machines

Boglietti

Cavagnino

Staton

et al. 2009

IEEE Trans. Ind. Electron.

819

373

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In this paper, the authors present an extended survey on the evolution and the modern approaches in the thermal analysis of electrical machines. The improvements and the new techniques proposed in the last decade are analyzed in depth and compared in order to highlight the qualities and defects of each. In particular, thermal analysis based on lumped-parameter thermal network, finite-element analysis, and computational fluid dynamics are considered in this paper. In addition, an overview of the problems linked to the thermal parameter determination and computation is proposed and discussed. Taking into account the aims of this paper, a detailed list of books and papers is reported in the references to help researchers interested in these topics. Index Terms-Computed fluid dynamic, electrical machines, finite-element analysis (FEA), lumped-parameter thermal network (LPTN), thermal model, thermal parameter identification.

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“…The model calculates both the air flow and heat transfer in the machine. Air flow and temperature rise for all stator and rotor nodes were within 10% of the measured values [25].…”

Section: Thermal Network Based On Lumped Parameterssupporting

confidence: 64%

Section: Thermal Network Based On Lumped Parametersmentioning

confidence: 99%

See 1 more Smart Citation

Evolution and Modern Approaches for Thermal Analysis of Electrical Machines

Boglietti

Cavagnino

Staton

et al. 2009

IEEE Trans. Ind. Electron.

819

373

View full text Add to dashboard Cite

show abstract

“…The thermal analysis of OSV electrical machines by this method has been reported in [8, 10–12, 19–21]. Nerg and Ruuskanen [8] and Nerg and co‐workers [19], Malumbres et al .…”

Section: Analytical Thermal Modelmentioning

confidence: 99%

Analytical thermal model and flow network analysis suitable for open self‐ventilated machines

Ghahfarokhi

Kallaste

Belahcen

et al. 2020

IET Electric Power Applications

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This study provides a survey on thermal and flow network analysis of open self-ventilated (OSV) machines. The improvements and new approaches proposed in the last decade are analysed in detail. The thermal analysis of OSV machines is divided into two significant steps, thermal models and flow network analysis. In the first step of this survey, the analytical thermal model approach is considered in detail. In addition, the study provides an overview of the critical parameters of an analytical thermal model and discusses different solutions to overcome the problems. In the second step, the hydraulic behaviour of OSV machines is considered by using the analytical flow network analysis and the formulation to calculate the flow network parameters is provided.

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“…There have been a lot of references about the study on thermal fields of energy conversion devices. The lumped‐parameter method is a simple and rapid method for assessment of temperature rise [1–6], but this method is invalid when the issue is special or the geometric structure of the energy conversion devices is a complex computational fluid dynamics (CFD) and this is an accurate solution method for the complicated problem. In [7–9], CFD model analysis for different operational conditions, a new way of research on the thermal field, and transient temperature analysis have been conducted on permanent magnet synchronous motors.…”

Section: Introductionmentioning

confidence: 99%