alexa Modeling, Analysis and Simulation of Sensorless Contro
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
Open Access

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Research Article

Modeling, Analysis and Simulation of Sensorless Control of Brushless Dc Motor Based On BEMF Difference Estimation Method

Merin John1 , Vinu Thomas2
  1. M. Tech. Scholar(IDAC), Department of EEE, Rajagiri School of Engineering and Technology, Kakkanad, Kerala, India
  2. Assistant Professor, Department of EEE, Rajagiri School of Engineering and Technology, Kakkanad, Kerala, India
Related article at Pubmed, Scholar Google


The Permanent Magnet Brushless DC (BLDC) motor offers higher efficiency, low maintenance, reduced weight and compact construction. For many industrial applications, the BLDC motor is increasingly being used. This paper presents a new sensorless drive scheme for BLDC motor based on the back EMF difference. The commutation point of the drive is determined by detecting the Zero Crossing Point (ZCP) of difference in back EMF of two phases. Simulations of the proposed method have been carried out using MATLAB/Simulink.


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