Title :
Sensorless two-phase current control of a faulty three-phase salient-pole PMSM
Author :
De Belie, Frederik ; Melkebeek, Jan
Author_Institution :
Dept. Electr. Energy, Ghent Univ., Ghent, Belgium
Abstract :
This paper discusses the sensorless current control of a slowly rotating permanent-magnet synchronous machine (PMSM) in the condition of a fault during which the excitation of one phase is prevented. Assuming a zero leakage inductance, it is shown that auxiliary three-phase variables can be defined for which during faulty operation, the fault-free three-phase machine model is valid. Hence, by using these auxiliary variables, most sensorless methods developed for three-phase PMSMs can be applied to the aforementioned faulty PMSM drive.
Keywords :
electric current control; electrical faults; inductance; permanent magnet motors; sensorless machine control; synchronous motors; auxiliary three phase variable; faulty three phase salient pole PMSM; sensorless two phase current control; slowly rotating permanent magnet synchronous machine; zero leakage inductance; Current control; Electric current control; Fault tolerance; Position measurement; Pulse width modulation; Rotors; Sensorless control; Switches; Synchronous machines; Testing;
Conference_Titel :
Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5177-7
Electronic_ISBN :
978-4-88686-067-5
DOI :
10.1109/ICEMS.2009.5382766
