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

fYear

2014

fDate

22-25 Oct. 2014

Firstpage

3117

Lastpage

3122

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2014 17th International Conference on

Conference_Location

Hangzhou

Type

conf

DOI

10.1109/ICEMS.2014.7014030

Filename

7014030