Combining the principles of sliding mode, direct torque control, and space-vector modulation in a high-performance sensorless AC drive

A sensorless induction motor drive is presented, in which the principles of sliding-mode control, direct torque control (DTC), and space-vector modulation are combined to ensure high-performance operation, both in the steady state and under transient conditions. Merits of the classic DTC transient b...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2004-01, Vol.40 (1), p.170-177
Main Authors: Lascu, C., Trzynadlowski, A.M.
Format: Article
Language:English
Subjects:
Computer errors
Computer simulation
Error correction
Induction motor drives
Pulse inverters
Pulse modulation
Pulse width modulation inverters
Sliding mode control
Steady-state
Torque control
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Summary:A sensorless induction motor drive is presented, in which the principles of sliding-mode control, direct torque control (DTC), and space-vector modulation are combined to ensure high-performance operation, both in the steady state and under transient conditions. Merits of the classic DTC transient behavior are preserved, while the steady-state operation is significantly improved. The torque and flux controllers, and motor state observer are of the sliding-mode type. The inverter is directly controlled on the basis of torque and flux errors, using space-vector pulsewidth modulation. Computer simulations and experimental results presented demonstrate the robustness, accuracy, quickness, and low-chattering, wide-speed-range operation of the drive.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2003.821667