An efficient power delivering scheme for sensorless drive of Brushless DC motor
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TECHNICAL PAPER
An efficient power delivering scheme for sensorless drive of Brushless DC motor Santanu Mondal2 • Arijit Majumder1 • Debjyoti Chowdhury1 • Madhurima Chattopadhyay1 Received: 17 August 2017 / Accepted: 23 December 2017 Ó Springer-Verlag GmbH Germany, part of Springer Nature 2018
Abstract This paper presents a photovoltaic (PV) panel fed sensorless Brushless DC motor (BLDC) drive using Sheppard –Taylor (S–T) converter for load matching in order to make the system energy efficient. In this work, a detailed study on S–T converter is done as it helps to stabilize the fluctuating output voltage of standard PV panel. Hence, in this application model, we have considered S–T converter as a feed to the six switch three phase Brushless DC (BLDC) motor drive in which the rotor position is estimated using back electromotive force (EMF) detection technique. This work is developed and studied on MATLAB/Simulink platform as well as in real time implemented hardware. The simulation model has borrowed the motor parameters (viz. stator back-EMF, rotor RPM and max. output torque, etc.) and circuit components from the implemented hardware. Finally, a detailed study of the implemented S–T converter reveals a significant performance improvement over a conventional Buck–Boost converter for same PV panel. The output results show that the scheme described in this scope of work efficiently handles the DC power generated by solar cell using S–T converter as the rotor RPM offset is negligible in closed loop motor drive.
1 Introduction The global energy crisis is being acknowledged today as the need for more energy efficient systems preferably with clean, non-exhaustible has increased. Solar energy is an ideal form of renewable energy source that comes with features like being environment friendly, zero running cost, easily deplorability (De la Rue du Can et al. 2009 ; Samin et al. 1997). A PV panel inherently generates direct current (DC), but most common household appliances like fans are single phase induction motors and require a DC to AC
& Madhurima Chattopadhyay [email protected] Santanu Mondal [email protected] Arijit Majumder [email protected] Debjyoti Chowdhury [email protected] 1
Applied Electronics and Instrumentation, Heritage Institute of Technology, Kolkata, India
2
Electronics & Instrumentation Engg, Techno India, Salt Lake, Kolkata, India
converter for functioning, thus introducing conversionloss (Gupta et al. 2009). This problem cannot be eradicated by simply replacing the AC induction motor with a DC motor, but as a DC motor is limited in terms of low rpm application, high maintenance cost and high electromagnetic (EM) noise (Chowdhury et al. 2013; Jaiswal et al. 2014). A BLDC motor proves to be a suitable substitute as it has much better power to weight ratio than a conventional induction motor with an added advantage of directly being able to run of DC power. Therefore, in this development we have introduc
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