[Zurück]

M. Ganchev, Ch. Kral, T. Wolbank:
"Sensitivity and Robustness Aspects of Sensorless Rotor Temperature Estimation Technique for Permanent Magnet Synchronous Motor";
Poster: International Power Electronics and Motion Control Conference (EPE-PEMC), Novi Sad, Serbien; 04.09.2012 - 06.09.2012; in: "Proceedings of Power Electronics and Motion Control Conference", (2012), ISBN: 978-1-4673-1972-0; S. 1 - 6.

The work focuses on tuning issues of a recently presented sensorless rotor temperature estimation technique for Permanent Magnet Synchronous Motors (PMSMs). The method implies an intermittent injection of a voltage pulse in the d-axis of the motor while keeping the load current zero. Thus, the resulting d-current response depends on both the initial value of the d-current itself and the actual magnetization level of the permanent magnets. Since the magnetization of the magnets depends on the temperature, different d-current slopes are associated with given temperature levels of the magnets. The sensitivity of the method depends strongly on the initial d-current and the injected voltage pulse width. Several method operating conditions will be discussed and compared in terms of sensitivity and influence on the motor performance.

http://publik.tuwien.ac.at/files/PubDat_210725.pdf