TY - JOUR
T1 - Fault-Tolerant Control with Faulty Phase Winding Currents Compensation for Current Source Inverter-Fed Five-Phase PMSM under Adjacent Double-Phase Open-Circuit Fault
AU - Chen, Chao
AU - Sun, Xiaoyong
AU - Chen, Zhen
AU - Liu, Xiangdong
AU - Zhu, Z. Q.
AU - Liao, Xiaozhong
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2025
Y1 - 2025
N2 - Multi-phase permanent magnet synchronous motors driven by the current source inverters are widely used in safety-critical applications, due to their fault-tolerant capability and high torque/power density. Nevertheless, the fault-tolerant field-oriented control method based on reduced order transformation matrices for addressing the adjacent double-phase open-circuit fault in the current source inverter has not yet been established. Moreover, the influence of faulty phase winding currents has not been analyzed and suppressed. Hence, this paper develops a fault-tolerant control approach that includes compensation for faulty phase winding currents in the case of adjacent double-phase open-circuit fault in the current source inverter. Firstly, the optimized fault-tolerant winding currents are derived. Subsequently, the decoupled mathematical model and fault-tolerant space-vector-pulse-width-modulation strategy are established, and finally the fault-tolerant control is achieved. The effectiveness of the proposed fault-tolerant control scheme has been validated in the experimental results. Additionally, the utilization of compensating for faulty-phase winding currents can lead to a further reduction in electromagnetic torque ripple by 19.32%.
AB - Multi-phase permanent magnet synchronous motors driven by the current source inverters are widely used in safety-critical applications, due to their fault-tolerant capability and high torque/power density. Nevertheless, the fault-tolerant field-oriented control method based on reduced order transformation matrices for addressing the adjacent double-phase open-circuit fault in the current source inverter has not yet been established. Moreover, the influence of faulty phase winding currents has not been analyzed and suppressed. Hence, this paper develops a fault-tolerant control approach that includes compensation for faulty phase winding currents in the case of adjacent double-phase open-circuit fault in the current source inverter. Firstly, the optimized fault-tolerant winding currents are derived. Subsequently, the decoupled mathematical model and fault-tolerant space-vector-pulse-width-modulation strategy are established, and finally the fault-tolerant control is achieved. The effectiveness of the proposed fault-tolerant control scheme has been validated in the experimental results. Additionally, the utilization of compensating for faulty-phase winding currents can lead to a further reduction in electromagnetic torque ripple by 19.32%.
KW - Adjacent double-phase open-circuit fault
KW - current source inverter
KW - faulty phase winding currents compensation
KW - multi-phase permanent magnet motor
UR - http://www.scopus.com/inward/record.url?scp=85215598715&partnerID=8YFLogxK
U2 - 10.1109/TTE.2025.3530522
DO - 10.1109/TTE.2025.3530522
M3 - Article
AN - SCOPUS:85215598715
SN - 2332-7782
JO - IEEE Transactions on Transportation Electrification
JF - IEEE Transactions on Transportation Electrification
ER -