Sensorless Control of BLDC Motor Drive for an Automotive Fuel Pump Using a Hysteresis Comparator

This paper develops the brushless dc (BLDC) motor sensorless control system for an automotive fuel pump. The sensorless techniques that are based on a hysteresis comparator and a potential start-up method with a high starting torque are suggested. The hysteresis comparator is used to compensate for...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2014-03, Vol.29 (3), p.1382-1391
Main Authors: CHUN, Tae-Won, TRAN, Quang-Vinh, LEE, Hong-Hee, KIM, Heung-Geun
Format: Article
Language:English
Subjects:
Applied sciences
Brushless dc (BLDC) motor
Capacitors. Resistors. Filters
Circuit properties
Commutation
Control systems
Electric power
Electric, optical and optoelectronic circuits
Electrical engineering. Electrical power engineering
Electrical machines
Electronic circuits
Electronics
Exact sciences and technology
Experiments
Frequency filters
Fuel pumps
Hysteresis
hysteresis comparator
Hysteresis motors
Input output
Miscellaneous
Regulation and control
Rotors
Sensorless control
Sensors
start-up technique
Stator windings
Switching
Various equipment and components
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Summary:This paper develops the brushless dc (BLDC) motor sensorless control system for an automotive fuel pump. The sensorless techniques that are based on a hysteresis comparator and a potential start-up method with a high starting torque are suggested. The hysteresis comparator is used to compensate for the phase delay of the back EMFs due to a low-pass filter (LPF) and also prevent multiple output transitions from noise or ripple in the terminal voltages. The rotor position is aligned at standstill for maximum starting torque without an additional sensor and any information of motor parameters. Also, the stator current can be easily adjusted by modulating the pulse width of the switching devices during alignment. Some experiments are implemented on a single chip DSP controller to demonstrate the feasibility of the suggested sensorless and start-up techniques.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2013.2261554