Magnet Temperature Estimation in Surface PM Machines Using High-Frequency Signal Injection

被引：147

作者：

Diaz Reigosa, David ^{[1
]}

Briz, Fernando ^{[1
]}

Garcia, Pablo ^{[1
]}

Manuel Guerrero, Juan ^{[1
]}

Degner, Michael W. ^{[2
]}

机构：

[1] Univ Oviedo, Dept Elect Comp & Syst Engn, Gijon 33204, Spain

[2] Ford Motor Co, Dearborn, MI 48121 USA

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2010年 / 46卷 / 04期

关键词：

Carrier signal injection; magnet temperature; permanent-magnet (PM) synchronous machines; EDDY-CURRENT LOSS; POSITION ESTIMATION;

D O I：

10.1109/TIA.2010.2049816

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

This paper proposes a method to estimate the magnet temperature in surface permanent-magnet machines using high-frequency carrier signal injection. The injection of a high-frequency signal, superimposed on the fundamental excitation, allows the estimation of the stator high-frequency impedance, which is a function of both the stator and rotor impedances. The temperature of the magnets is shown to have a significant weight on the overall stator high-frequency impedance, from which it can be estimated. The high-frequency carrier signal is injected intermittently in order to minimize potential adverse effects on the normal operation of the machine. This paper first explains the physics behind the magnet temperature dependence. Then, the principles of the method, as well as its practical implementation, are discussed. Experimental verification of the method is provided.

引用

页码：1468 / 1475

页数：8

共 23 条

[1]

Rotor loss in permanent-magnet brushless AC machines [J].