Title :
Fault tolerant control of harmonic injected nine-phase flux switching permanent magnet motor drive system
Author :
Feng Yu ; Ming Cheng ; Feng Li ; Chau, K.T. ; Jin Huang ; Wei Hua
Author_Institution :
Sch. of Electr. Eng., Southeast Univ., Nanjing, China
Abstract :
In this paper, a universal online generation technique of non-sinusoidal fault-tolerant current is proposed for a nine-phase flux switching permanent magnet (NP-FSPM) motor with third harmonic back electromotive force (EMF) under single phase open-circuit fault condition. The decoupled model of NP-FSPM motor has been developed. By calculating the average torque and the pulsating torque components in steady state, the condition for reducing the torque ripple is analyzed, and the third harmonic current injection can be kept constant in the pre- and post open-circuit fault condition. The predicted results are confirmed by simulation.
Keywords :
fault diagnosis; fault tolerance; motor drives; permanent magnet motors; NP-FSPM motor; average torque component; decoupled model; fault tolerant control; harmonic-injected nine-phase flux switching permanent magnet motor drive system; nonsinusoidal fault-tolerant current; post open-circuit fault condition; pre-open-circuit fault condition; pulsating torque component; single-phase open-circuit fault condition; third-harmonic back EMF; third-harmonic back electromotive force; torque ripple reduction; universal online generation technique; Fault tolerance; Fault tolerant systems; Harmonic analysis; Stator windings; Torque; Vectors;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/ICEMS.2014.7014030
