Enhanced sensorless control of brushless drives using back emf mapping

Markos Tawadros; Jamal Rizk; Mahmood Nagrial

doi:10.1109/ICMET.2010.5598472

Enhanced sensorless control of brushless drives using back emf mapping

Markos Tawadros, Jamal Rizk, Mahmood Nagrial

School of Engineering, Design & Built Environment

Research output: Chapter in Book / Conference Paper › Conference Paper

2 Citations (Scopus)

Abstract

An enhanced inexpensive algorithm is presented in this paper for sensorless control of brushless DC motors (BLDCMs) based on the back emf (BEMF) sensing techniques. The algorithm determines the switching point of power between phases, which is calculated with reasonable accuracy in simple mathematical equations utilizing the slope of the BEMF which is mapped back to reference values. Simulation of the method is presented for verification. Predictably, this eliminates using speed dependant filters, comparators, and the delays called through look up tables after the detection of the zero crossing point (ZCP).

Original language	English
Title of host publication	Proceedings of the International Conference on Mechanical and Electrical Technology, held in Singapore, 10-12 Sep., 2010
Publisher	IEEE
Pages	782-784
Number of pages	3
ISBN (Print)	9781424481026
DOIs	https://doi.org/10.1109/ICMET.2010.5598472
Publication status	Published - 2010
Event	International Conference on Mechanical and Electrical Technology - Duration: 1 Jan 2010 → …

Conference

Conference	International Conference on Mechanical and Electrical Technology
Period	1/01/10 → …

Keywords

brushless drives
sensorless control

Access to Document

10.1109/ICMET.2010.5598472

Cite this

@inproceedings{f1e3754c70354d6191a1ebc4ff0a91a2,

title = "Enhanced sensorless control of brushless drives using back emf mapping",

abstract = "An enhanced inexpensive algorithm is presented in this paper for sensorless control of brushless DC motors (BLDCMs) based on the back emf (BEMF) sensing techniques. The algorithm determines the switching point of power between phases, which is calculated with reasonable accuracy in simple mathematical equations utilizing the slope of the BEMF which is mapped back to reference values. Simulation of the method is presented for verification. Predictably, this eliminates using speed dependant filters, comparators, and the delays called through look up tables after the detection of the zero crossing point (ZCP).",

keywords = "brushless drives, sensorless control",

author = "Markos Tawadros and Jamal Rizk and Mahmood Nagrial",

year = "2010",

doi = "10.1109/ICMET.2010.5598472",

language = "English",

isbn = "9781424481026",

pages = "782--784",

booktitle = "Proceedings of the International Conference on Mechanical and Electrical Technology, held in Singapore, 10-12 Sep., 2010",

publisher = "IEEE",

note = "International Conference on Mechanical and Electrical Technology ; Conference date: 01-01-2010",

}

Tawadros, M, Rizk, J & Nagrial, M 2010, Enhanced sensorless control of brushless drives using back emf mapping. in Proceedings of the International Conference on Mechanical and Electrical Technology, held in Singapore, 10-12 Sep., 2010. IEEE, pp. 782-784, International Conference on Mechanical and Electrical Technology, 1/01/10. https://doi.org/10.1109/ICMET.2010.5598472

TY - GEN

T1 - Enhanced sensorless control of brushless drives using back emf mapping

AU - Tawadros, Markos

AU - Rizk, Jamal

AU - Nagrial, Mahmood

PY - 2010

Y1 - 2010

N2 - An enhanced inexpensive algorithm is presented in this paper for sensorless control of brushless DC motors (BLDCMs) based on the back emf (BEMF) sensing techniques. The algorithm determines the switching point of power between phases, which is calculated with reasonable accuracy in simple mathematical equations utilizing the slope of the BEMF which is mapped back to reference values. Simulation of the method is presented for verification. Predictably, this eliminates using speed dependant filters, comparators, and the delays called through look up tables after the detection of the zero crossing point (ZCP).

AB - An enhanced inexpensive algorithm is presented in this paper for sensorless control of brushless DC motors (BLDCMs) based on the back emf (BEMF) sensing techniques. The algorithm determines the switching point of power between phases, which is calculated with reasonable accuracy in simple mathematical equations utilizing the slope of the BEMF which is mapped back to reference values. Simulation of the method is presented for verification. Predictably, this eliminates using speed dependant filters, comparators, and the delays called through look up tables after the detection of the zero crossing point (ZCP).

KW - brushless drives

KW - sensorless control

UR - http://handle.uws.edu.au:8081/1959.7/504629

U2 - 10.1109/ICMET.2010.5598472

DO - 10.1109/ICMET.2010.5598472

M3 - Conference Paper

SN - 9781424481026

SP - 782

EP - 784

BT - Proceedings of the International Conference on Mechanical and Electrical Technology, held in Singapore, 10-12 Sep., 2010

PB - IEEE

T2 - International Conference on Mechanical and Electrical Technology

Y2 - 1 January 2010

ER -

Enhanced sensorless control of brushless drives using back emf mapping

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Keywords

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