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Operation Optimization of the Cold End System with Dual-Pressure Condenser of 1000 MW Coal-Fired Unit Read chapter Read first chapter

2024 | OriginalPaper | Chapter

Measuring Method for Strand Current in Formed-Parallel Coil of Flat-Wire Motor Based on Hall Sensors

Authors : Ni Lei, Yanping Liang

Published in: The Proceedings of 2023 International Conference on Wireless Power Transfer (ICWPT2023)

Publisher: Springer Nature Singapore

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Abstract

Formed-parallel coil is a new stator coil type of flat-wire motor. It is designed to reduce the eddy current loss in the stator coil and decrease the difficulty of coil production. In the experiments, it can only detect the total current of each stator coil instead of the current distribution of each strand. Aiming to solve the problem, this paper proposes a strand current measuring method based on Hall sensors without destroying the coil structure. The end leakage magnetic field (ELMF) and strand current are analyzed by finite element solution (FEM). The relationship between the strand currents, ELMF and Hall output signal is derived. The coil strand current test platform is built and the experimental verification is carried out by a 15 kW flat-wire motor. The result shows that the current measuring method can measure the current distribution in the strands accurately. It provides an experimental evaluation basis for analyzing the reasonableness of the strand current distribution and the design of the formed-parallel coil.

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Metadata
Title
Measuring Method for Strand Current in Formed-Parallel Coil of Flat-Wire Motor Based on Hall Sensors
Authors
Ni Lei
Yanping Liang
Copyright Year
2024
Publisher
Springer Nature Singapore
Book
The Proceedings of 2023 International Conference on Wireless Power Transfer (ICWPT2023)

Print ISBN: 978-981-9708-76-5

Electronic ISBN: 978-981-9708-77-2

Copyright Year: 2024

DOI
https://doi.org/10.1007/978-981-97-0877-2_41