TY - JOUR
T1 - Sensor fault-resilient control of interior permanent-magnet synchronous motor drives
AU - Beng, Gilbert Foo Hock
AU - Zhang, Xinan
AU - Vilathgamuwa, D. Mahinda
PY - 2015/4/1
Y1 - 2015/4/1
N2 - In a conventional ac motor drive using field-oriented control, a dc-link voltage, speed, and at least two current sensors are required. Hence, in the event of sensor failure, the performance of the drive system can be severely compromised. This paper presents a sensor fault-tolerant control strategy for interior permanent-magnet synchronous motor (IPMSM) drives. Three independent observers are proposed to estimate the speed, dc-link voltage, and currents of the machine. If a sensor fault is detected, the drive system isolates the faulty sensor while retaining the remaining functional ones. The signal is then acquired from the corresponding observer in order to maintain the operation of the drive system. The experimental results provided verify the effectiveness of the proposed approach.
AB - In a conventional ac motor drive using field-oriented control, a dc-link voltage, speed, and at least two current sensors are required. Hence, in the event of sensor failure, the performance of the drive system can be severely compromised. This paper presents a sensor fault-tolerant control strategy for interior permanent-magnet synchronous motor (IPMSM) drives. Three independent observers are proposed to estimate the speed, dc-link voltage, and currents of the machine. If a sensor fault is detected, the drive system isolates the faulty sensor while retaining the remaining functional ones. The signal is then acquired from the corresponding observer in order to maintain the operation of the drive system. The experimental results provided verify the effectiveness of the proposed approach.
KW - AC motor drive
KW - fault-tolerant control
KW - interior permanent-magnet synchronous motor (IPMSM)
KW - state observer
UR - http://www.scopus.com/inward/record.url?scp=84908456475&partnerID=8YFLogxK
U2 - 10.1109/TMECH.2014.2311126
DO - 10.1109/TMECH.2014.2311126
M3 - Article
AN - SCOPUS:84908456475
SN - 1083-4435
VL - 20
SP - 855
EP - 864
JO - IEEE/ASME Transactions on Mechatronics
JF - IEEE/ASME Transactions on Mechatronics
IS - 2
M1 - 6784125
ER -