Journal
IEEE TRANSACTIONS ON ENERGY CONVERSION
Volume 37, Issue 1, Pages 729-736Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TEC.2021.3108664
Keywords
Stators; Torque; Standards; Rotors; Observers; Steady-state; Voltage control; Adaptive control; induction motors; nonlinear dynamical systems; proportional control; variable speed drives
Funding
- University of Santiago of Chile [DICYT TEC 082078TT]
- ANID-Chile [FONDECYT 11170154, FONDECYT 1190959]
- CONICYT [AFB180004]
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This article proposes a new scalar control scheme for variable speed drives of induction motors with adaptive starting control. An adaptive passivity-based controller is designed for a class of nonlinear systems, maintaining a constant stator starting current. Experimental results validate the effectiveness of the proposed control strategy, demonstrating rated-starting torque capabilities and fast speed response, as well as lower stator current consumption compared to previous scalar control schemes.
This article proposes a new scalar control scheme for variable speed drives of induction motors with an adaptive starting control. Besides centrifugal pumps, blowers, and fans, it expands the scalar control application field to move, for instance, a class of conveyor belts with nominal torque loading. An adaptive passivity-based controller designed for a class of nonlinear systems encompassing the dynamical machine model keeps a constant stator starting current. The proposed methodology uses information from the motor nameplate. Hence, it keeps a simple control scheme, not needing parameter estimates, neither adjusting controllers nor variable observers depending on them. Experimental results with a 10 HP downscaled laboratory prototype validate the proposed control strategy effectiveness. It shows rated-starting torque capabilities and fast speed response. Moreover, it shows lower stator current consumption than previous scalar control schemes.
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