A Comparative Study between Load and No-Load condition of Brushless DC Motor Drives by Using MATLAB

  • Upama Das Assistant Professor, NIT Mizoram
  • Pabitra Kumar Biswas Assistant Professor, NIT Mizoram
  • Sukanta Debnath Assistant Professor, NIT Mizoram

Abstract

In this paper an extensive comparative performance study is carried out between No-load and load condition of an openloop model of a Brushless Direct Current (BLDC) Motor drive fed from a two-level voltage source inverter (VSI) under 120-degree conduction mode, using simulations in a MATLAB based software environment. BLDC motors are currently growingin popularity and replacing the brush motor in many applications, as they can be used in both low and high-speed vehiclesystems and also in servo drives. The high reliability, torque to inertia ratio, high efficiency, high power density, ease ofcontrol and mainly the brushless operation make BLDC motors superior to others. It has a permanent magnet as a rotor witha balanced 3-phase armature in its stator. The armature winding is driven by a power electronics inverter which is switchedin synchronism with the rotor position, sensed by an optical encoder or a Hall Effect sensor. It is found that torque ripple canbe minimized by tuning the value of rotor position, no load condition and trapezoidal armature phase current. The differentperformance parameters for no-load and load condition of the BLDC motor such as phase voltages, phase currents, speed,electromagnetic torque, d and q axis current and rotor position etc. are determined in MATLAB environment.

Author Biographies

Upama Das, Assistant Professor, NIT Mizoram
Electrical and Electronics Engineering
Pabitra Kumar Biswas, Assistant Professor, NIT Mizoram
Electrical and Electronics Engineering
Sukanta Debnath, Assistant Professor, NIT Mizoram
Electrical and Electronics Engineering

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Published
2017-06-19
How to Cite
DAS, Upama; BISWAS, Pabitra Kumar; DEBNATH, Sukanta. A Comparative Study between Load and No-Load condition of Brushless DC Motor Drives by Using MATLAB. Journal of Power Technologies, [S.l.], v. 98, n. 3, p. 281–286, june 2017. ISSN 2083-4195. Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/1013>. Date accessed: 28 sep. 2021.
Section
Electrical Engineering

Keywords

Brushless DC motor, Open loop model, voltage source inverter (120-degree mode), a position sensor (encoder), load and no load, MATLAB.

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