Current control of BLDC drives for EV application

This paper presents a current blocking strategy of brushless DC (BLDC) motor drive to prolong the capacity voltage of batteries per charge in electric vehicle applications. The BLDC motor employs a simple torque hysteresis control (THC) that can offer a robust control and quick torque dynamic perfor...

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Bibliographic Details
Main Authors: Azam, Ahmad Faiz Noor, Jidin, Auzani, Ngatiman, Nor Azazi, Jopri, M. H., Manap, Mustafa, Herlino, Adeline Lukar, Alias, Nor Faezah
Format: Conference Proceeding
Language:English
Subjects:
Brushless DC motor
Brushless DC motors
current controller
electric vehicle (EV)
hall effect
hybrid electric vehicle (HEV)
Hysteresis motors
Permanent magnet motors
Rotors
Torque
torque hysteresis controller (THC)
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Summary:This paper presents a current blocking strategy of brushless DC (BLDC) motor drive to prolong the capacity voltage of batteries per charge in electric vehicle applications. The BLDC motor employs a simple torque hysteresis control (THC) that can offer a robust control and quick torque dynamic performance. At first, a mathematical modeling of BLDC motor and principle of torque hysteresis control will be described, so that the benefit offered by the proposed current blocking strategy can be highlighted. It can be shown that the current control method naturally provides current limitation, in which the current error (or ripple) is restricted within the pre-defined band-gap furthermore provide current protection. The benefit of proposed current blocking strategy will be highlighted such that it can prevent the current drained from the batteries when the torque demand is released to set to 0 Nm. The control scheme is validated and verified by the simulation and experimental results.
DOI:10.1109/PEOCO.2013.6564583