Abstract
For electrical drives good dynamic performance is mandatory so as to respond to the changes in command speed and torque. This requirement of AC drives can be fulfilled by the vector control method which enables the control of field and torque of induction motor independently (decoupling) by manipulating corresponding field oriented quantities. The traditional indirect vector control system uses conventional PI controller in the outer speed loop because of the ease and constancy, unexpected change in load conditions or environmental factors produce overshoot, fluctuation of motor speed, oscillation of the torque and long settling time causes deterioration of drive performance. An intelligent controller based on Fuzzy Logic can be used in the place of PI regulator to overcome. In this paper application of fuzzy logic to the intelligent SVPWM based speed control of induction motor drive is investigated. To solve the objective of this paper MATLAB/ SIMULINK software is used. The superior control performance of the proposed controller is demonstrated at SIMULINK platform using the fuzzy logic tool box.
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