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Sensorless Control of Brushless DC Motor using Zero Cross Back EMF Detection Technique

Author(s):

Ghanchi Maqbul Usmanbhai , L.D. COLLEGE OF ENGINEERING,AHMEDABAD; Dr. Saurabh N. Pandya, L.D. COLLEGE OF ENGINEERING,AHMEDABAD; Prajapati Akashkumar K., L.D. COLLEGE OF ENGINEERING,AHMEDABAD; Shah Priyank K., L.D. COLLEGE OF ENGINEERING,AHMEDABAD; Safiullah Faqirzay, L.D. COLLEGE OF ENGINEERING,AHMEDABAD

Keywords:

Sensor less, BLDC Motor State Space Model, Zero Crossing Detection

Abstract

Normally, Brushless DC (BLDC) motor use sensors to detect the rotor position. But motor with sensors have some limitations. To overcome these problems, another control technique for sensor less Brushless DC motor suggest in this paper. Modeling and simulation of sensor less control of Permanent Magnet Brushless DC (PMBLDC) motor is carried out using zero-cross detection of back e.m.f. technique. Simulink is utilized with the help of MATLAB to give a very flexible and reliable simulation. Modeling of BLDC motor in state space model to overcome the limitations of transfer function based model. With state space model representation, the motor performance can be analyzed for variation of motor parameters. Results for motor three phase back e.m.f., three phase current, three phase torque and rotor speed get from simulation.

Other Details

Paper ID: IJSRDV3I31100
Published in: Volume : 3, Issue : 3
Publication Date: 01/06/2015
Page(s): 1669-1673

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