A Modified Self Tuning Fuzzy Logic Controller for Brushless Direct Current Motor
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International Journal of Recent Engineering Science (IJRES) |  |
| © 2014 by IJRES Journal | ||
| Volume-1 |
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| Year of Publication : 2014 | ||
| Authors :Dr.G.Dinesh |
Citation
Dr.G.Dinesh, "A Modified Self Tuning Fuzzy Logic Controller for Brushless Direct Current Motor", International Journal of Recent Engineering Science (IJRES),V1(1):22-27 July 2014. ISSN:XXXX-XXXX. www.ijresonline.com. Published by IJRES.
Abstract—BLDC motors are very popular and are exchanging brush motors in various applications. Because the BLDC motor does not need any commutator and due to its superior electrical and mechanical features and its capability to operate in harmful conditions it is more reliable than the DC motor. Conventionally, PI, PID controllers are generally used to control these motors, requiring rotor position sensors (RPS) for starting and for providing the proper commutation sequence to stator windings. The disadvantages of sensored motor control system are increased cost and size of the motor, and required special mechanical arrangement for mountingthesensors.AnotherproblemassociatedwithBLDCmotorcontrolistheuseof Conventional PI,PID controllers these controllersposses’ complications underthesituations ofnonlinearity, load disturbancesandparametricvariations.Thispaperpresentsthedesignandimplementationofamodified self-tuning fuzzy logic controller for the sensor less speed control of brush less dc motors.
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Keywords-Modified Self-tuning Fuzzy logic controller (STFLC), Brushless DC motor drives (BLDC),and back-EMF, sensor less, Variable speed drives.