Development of BLDC Motor Based Elevator System Suitable for DC Microgrid

Subbi Naidu Bora¹

Section:Research Paper, Product Type: Journal-Paper
Vol.5 , Issue.10 , pp.18-22, Oct-2019

Online published on Oct 31, 2019

Copyright © Subbi Naidu Bora . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
This Paper presents a power factor corrected (PFC) bridgeless (BL) buck–boost converter-fed brushless direct current (BLDC) motor drive for Elevator Systems suitable for operating with DC Micro-Grid. An approach of speed control of the BLDC motor by controlling the dc link voltage of the voltage source inverter (VSI) is used with a single voltage sensor. This facilitates the operation of VSI at fundamental frequency switching by using the electronic commutation of the BLDC motor which offers reduced switching losses. A BL configuration of the buck–boost converter is proposed which offers the elimination of the diode bridge rectifier, thus reducing the conduction losses associated with it. BL buck-boost converter is designed to operate in discontinuous inductor current mode (DICM) to provide an inherent PFC at ac mains. It is known that the Brushless Direct Current (BLDC) motors have smooth speed control, high power density and fewer complexities in power converter and controller when operated with dc supply as compared to other electrical motors. For analyzing the proposed BLDC motor-based Elevator System, a MATLAB/Simulink model has been developed by inserting various electrical and mechanical components

Key-Words / Index Term :
Brushless Direct Current (BLDC) motors, voltage source inverter (VSI), power factor corrected (PFC) bridgeless (BL) buck–boost converter

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