Project Stratagems for a Nonlinear Vector Controller Fed BLDC Motor
T.V. Subhashini1, K. Alice Mary2, K. Ravindra3
1Mrs. T. V. Subhashini, Department of EEE, ANITS, Visakhapatnam (Andhra Pradesh), India.
2Dr. K. Alice May, Department of EEE, Gudlavalleru Engineering College, Gudiwada (Andhra Pradesh), India.
3Dr. K. Ravindra, Department of EEE, JNTU Kakinada, Kakinada (Andhra Pradesh), India.
Manuscript received on 15 September 2019 | Revised Manuscript received on 24 September 2019 | Manuscript Published on 10 October 2019 | PP: 840-844 | Volume-8 Issue-6S2, August 2019 | Retrieval Number: F12090886S219/19©BEIESP | DOI: 10.35940/ijeat.F1209.0886S219
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Abstract: Brushless DC (BLDC) motors are becoming an engaging alternative to DC and Induction motors. Various types of control strategies like direct vector control and indirect vector controls are illustrated for variable speed Alternating current drives. When those control strategies are applied to the proposed drive, there are certain drawbacks like instability, sensitive to parameter variations, etc. In this work, in order to get rid of the above difficulties, a design methodology is proposed in the closed loop control of BLDC drive, in which there is an instinctive flexibility to produce the required torque for various possible set of currents. Using this methodology we can attain better control over the drive. A suitable nonlinear and a robust controller makes the drive robust, which in turn makes the system insensitive to the parameter variations and increases the degree of stability. Robust control is a technique, which can precisely deals with uncertainty. These control techniques are used to accomplish robust performance and stability in the existence of bounded modeling errors. This paper gives more information regarding the design features of BLDC motor using MATLAB software.
Keywords: Brushless DC Motor, Feedback Linearization Technique, Pole Placement Technique, Internal Power Factor Angle Control, Torque or Load Angle Control.
Scope of the Article: Robotics and Control