Magnet Temperature Estimation Methodology by Using Magnet Flux Linkage Observer for Variable Leakage Flux IPMSM

This paper presents a novel methodology of magnet temperature estimation using a magnet flux linkage observer for a Variable Leakage Flux Interior Permanent Magnet Synchronous M (VLF-IPMSM), whose parameters vary depending on load current conditions. The magnet temperature estimation algorithm consi...

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Bibliographic Details
Published in:Denki Gakkai ronbunshi. D, Sangyō ōyō bumonshi 2020/04/01, Vol.140(4), pp.265-271
Main Authors: Kato, Takashi, Sasaki, Kensuke, Laborda, Diego Fernandez, Alonso, Daniel Fernández, Reigosa, David Díaz
Format: Article
Language:Japanese
Subjects:
Algorithms
Flux
IPMSM
Leakage
Lookup tables
magnet temperature estimation
magnetic flux linkage observer
Methodology
Permanent magnets
variable leakage flux motor
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Summary:This paper presents a novel methodology of magnet temperature estimation using a magnet flux linkage observer for a Variable Leakage Flux Interior Permanent Magnet Synchronous M (VLF-IPMSM), whose parameters vary depending on load current conditions. The magnet temperature estimation algorithm consists of a Gopinath-Style flux observer, magnet flux linkage observer, and magnet temperature estimator based on the look-up table. The estimation accuracy is evaluated on d-q current plane by using both a behavior model of JMAG-RT and a control model of MATLAB Simulink. Then it is shown that the proposed methodology can be applied to a VLF-IPMSM for magnet temperature estimation.
ISSN:0913-6339
2187-1094
1348-8163
2187-1108
DOI:10.1541/ieejias.140.265