A Fast and Accuracy Three-Dimensional Transient Thermal Modeling for Surface Water Cooling Permanent Magnet Machine

This paper proposes a network-based three-dimensional thermal network (TN) model for permanent magnet (PM) machines with the surface-attached cooling structure. This model is developed based on the network topology method. It combines detailed radial and axial thermal information and discretizes the...

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Bibliographic Details
Published in:IEEE transactions on transportation electrification 2024-06, p.1-1
Main Authors: Wu, Yanchen, Guo, Baocheng, Du, Yunlu, Chu, Chenglong, Peng, Fei
Format: Article
Language:English
Subjects:
Accuracy
Cooling
Finite element analysis
Heating systems
Mathematical models
Motors
Surface-attached cooling structure
The slotless PM machine
Thermal analysis
Thermal network
Windings
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Description
Summary:This paper proposes a network-based three-dimensional thermal network (TN) model for permanent magnet (PM) machines with the surface-attached cooling structure. This model is developed based on the network topology method. It combines detailed radial and axial thermal information and discretizes the motor structure into highly discrete thermal components. In this way, highly accurate results are obtained. Firstly, an algorithm for automatically constructing the TN model is designed. Then, the computational fluid dynamics is used to obtain the precise convective heat transfer coefficients. Afterward, the coefficients are integrated into the TN model for transient thermal analysis. Finally, the accuracy of the model is validated through finite element method and temperature rise experiments.
ISSN:2332-7782
2332-7782
DOI:10.1109/TTE.2024.3413777