Izvorni znanstveni članak
https://doi.org/10.1080/00051144.2020.1797349
Sensorless fault-tolerant control of five-phase IPMSMs via model reference adaptive systems
Y. Zafari
orcid.org/0000-0002-2549-6140
; Department of Electrical Engineering, Miandoab Branch, Islamic Azad University, Miandoab, Iran
S. Shoja-Majidabad
orcid.org/0000-0003-4526-4344
; Department of Electrical Engineering, University of Bonab, Bonab, Iran
Sažetak
The present study deals with sensorless fault-tolerant control (SFTC) of five-phase Interior Permanent Magnet Synchronous Motors (IPMSMs). First, a Proportional-Integral Model Reference Adaptive System (PI-MRAS) speed estimator is proposed. The MRAS compares outputs of reference and adaptive models. Then, PI controller is utilized to generate the estimated speed by minimizing current errors between the two models. Second, a novel Sign Integral Terminal Sliding Mode Controller (SITSMC) is suggested in the presence of open phase faults. The proposed controller tolerates these faults through a transformation matrix tuning technique in view of equal current and minimum copper loss schemes. Meanwhile, SITSM controller utilizes the estimated speed of PI-MRAS block. Third, stability of the closed-loop system is provided by Lyapunov theorem. Finally, simulation results validate the feasibility and effectiveness of the suggested SFTC strategy both in normal and open one phase faulty conditions for a five-phase IPMSM.
Ključne riječi
Five-phase IPMSM; open phase fault; SFTC; PI-MRAS; SITSMC
Hrčak ID:
258309
URI
Datum izdavanja:
23.9.2020.
Posjeta: 374 *