Bridgeless Landsman Converter Based BLDC Motor Drive Using IFOC


  • khalid Ali khan


BLDC, Back EMF, IFOC, PWM, DC link voltage.


This project proposed to improve performance of BLDC motor control using landsman converter sensor less vector control technique where the photovoltaic source is preferred for powering the motor. The sensor less control technique does not use position and speed sensors instead make use of voltage and current measurements. A simplified indirect field oriented control (IFOC) with back-EMF observer for speed estimation replaces the MB-PWM control technique which results in reduction of torque ripple and obtains a trapezoidal stator current waveform. It also results in reduction of total harmonic distortion in stator current of BLDC motor when compared with simple boost PWM. The improved performances of sensor less BLDC motor with various control techniques are verified. The dc link voltage, Speed and torque characteristics is achieved using indirect field oriented control method are verified using MATLAB/Simulink.


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Author Biography

khalid Ali khan

Lecturer, department of Ece , mettu university



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