Nonlinear Differential Flatness-Based Speed/Torque Control with State-Observers of Permanent Magnet Synchronous Motor Drives
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Author list: Thounthong P., Sikkabut S., Poonnoy N., Mungporn P., Yodwong B., Kumam P., Bizon N., Nahid-Mobarakeh B., Pierfederici S.
Publisher: Institute of Electrical and Electronics Engineers
Publication year: 2018
Volume number: 54
Issue number: 3
Start page: 2874
End page: 2884
Number of pages: 11
ISSN: 0093-9994
eISSN: 1939-9367
Languages: English-Great Britain (EN-GB)
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Abstract
This paper presents a nonlinear control algorithm based on differential flatness approach for controlling a servo permanent magnet synchronous motor (PMSM) drive. The differential flatness approach is a model-based estimation. Subsequently, two state-observers are introduced to calculate a load torque disturbance and a stator resistance (representing losses in an inverter and motor) using its voltage drop. This can enable the improvement of the PMSM drive system and its efficiency. Using the flatness approach, we propose simple solutions to the dynamics and stabilization problems of the PMSM drive structure. In order to evaluate the proposed control algorithm, a hardware system is realized in a laboratory and digital estimation is obtained using a dSPACE controller DS1104 platform. Simulation and experimental results with a small-scale motor of 1000 W and 3000 r/min in a laboratory corroborate the excellent control scheme during motor-drive cycles. ฉ 1972-2012 IEEE.
Keywords
Differential algebraic, motor control, motor drives, permanent-magnet synchronous machine (PMSM), propulsion, torque control, variable speed drives
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