Title :
DC voltage signal injection for temperature monitoring in very small resistance induction machines
Author :
Lazcano, U. ; Poza, J. ; Aranburu, A. ; Nieva, T.
Author_Institution :
Fac. of Eng., Univ. of Mondragon, Mondragón, Spain
Abstract :
A temperature sensorless estimator is presented in this paper, which estimates the temperature using a signal injection strategy. A DC offset signal is injected to the machine producing a DC current offset. The stator resistance value is then estimated through the measured current offset value. The strategy has been implemented in an inverter-fed very small resistance induction high power machine. The proposed algorithm has been validated both by a real time platform and lab experiment.
Keywords :
asynchronous machines; invertors; real-time systems; stators; DC current offset; DC offset signal; DC voltage signal injection; high power machine; inverter-fed; lab experiment; real time platform; stator resistance value; temperature monitoring; temperature sensorless estimator; very small resistance induction machines; Equations; Mathematical model; Monitoring; Simulation; Stators; Torque; Induction motor protection; signal injection; stator resistance estimation; temperature estimation; thermal protection;
Conference_Titel :
Electrical Systems for Aircraft, Railway and Ship Propulsion (ESARS), 2012
Conference_Location :
Bologna
Print_ISBN :
978-1-4673-1370-4
Electronic_ISBN :
2165-9400
DOI :
10.1109/ESARS.2012.6387467
