Title :
A novel method for online stator resistance estimation of inverter-fed ac-machines without temperature sensors
Author :
Plotkin, J. ; Stiebler, M. ; Schuster, D.
Author_Institution :
Tech. Univ. of Berlin, Berlin
Abstract :
Based on previous investigations it is shown that the accuracy of online stator resistance monitoring of AC-machines fed by PWM inverters when using the superposition method suffers from dead time effects. A new and simple correction procedure is proposed to achieve high measurement accuracy without using temperature sensors. No additional hardware is required for this method. Experimental results are presented.
Keywords :
AC machines; PWM invertors; condition monitoring; stators; PWM inverters; inverter-fed AC-machines; online stator resistance estimation; resistance monitoring; superposition method; Current measurement; Electrical resistance measurement; Hardware; Performance evaluation; Pulse width modulation; Pulse width modulation inverters; Stator windings; Temperature sensors; Voltage control; Voltage measurement;
Conference_Titel :
Optimization of Electrical and Electronic Equipment, 2008. OPTIM 2008. 11th International Conference on
Conference_Location :
Brasov
Print_ISBN :
978-1-4244-1544-1
Electronic_ISBN :
978-1-4244-1545-8
DOI :
10.1109/OPTIM.2008.4602403
