Y.Lavanya¹, N.P.G.Bhavani¹, Neena Ramesh¹, K.Sujatha², ¹Meenakshi College of Engineering, India and ²Dr .M.G.R. Educational and Research Institute, India

This Paper mainly deals with the implementation of vector control technique using the brushless DC motor (BLDC). Generally tachogenerators, resolvers or incremental encoders are used to detect the speed. These sensors require careful mounting and alignment, and special attention is required with electrical noises. A speed sensor need additional space for mounting and maintenance and hence increases the cost and size of the drive system. These problems are eliminated by speed sensor less vector control by using Extended Kalman Filter and Back EMF method for position sensing. By using the EKF method and Back EMF method, the sensor less vector control of BLDC is implemented and its simulation using MATLAB/SIMULINK and hardware kit is implemented.

Brushless DC Motor (BLDCM), Current controller, Extended kalman filter (EKF), Vector control.