Sensitivity Analysis of High-Frequency Signal Injection-Based Temperature Estimation Methods to Machine Assembling Tolerances

被引:19
作者
Diaz Reigosa, David [1 ]
Fernandez, Daniel [1 ]
Tanimoto, Tsutomu [2 ]
Kato, Takashi [2 ]
Briz, Fernando [1 ]
机构
[1] Univ Oviedo, Dept Elect Comp & Syst Engn, Gijon 33204, Asturias, Spain
[2] Nissan Motor Co Ltd, Elect Vehicle Syst Lab, Nissan Res Ctr, Atsugi, Kanagawa 2430123, Japan
关键词
Eccentricity; high-frequency signal injection; lamination grain orientation; magnet temperature estimation; permanent magnet (PM) assembling tolerances; permanent magnet synchronous machines (PMSMs); SILICON STEEL LAMINATIONS; MAGNET SYNCHRONOUS MOTORS; SURFACE PM MACHINES; GRAIN;
D O I
10.1109/TIA.2016.2586757
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The injection of a high-frequency signal in the stator via inverter has been proven to be a viable option to estimate the magnet temperature in permanent magnet synchronous machines (PMSMs). Injection of a pulsating d-axis current is especially appealing, as it is insensitive to the speed, and L-d and L-q inductance variations. Furthermore, it is suitable both for interior PMSMs and surface PMSMs. Regardless of its promising characteristics, there are a number of issues that can reduce its accuracy, including machine assembling tolerances and rotor lamination grain orientation, which might need to be considered. This paper analyzes the sensitivity of temperature estimation using pulsating d-axis high-frequency current injection to rotor eccentricities, permanent magnet assembling tolerances, and lamination grain orientation. Preliminary results indicate that these issues can have a nonnegligible impact on the accuracy of the method.
引用
收藏
页码:4798 / 4805
页数:8
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