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Binary Diagnosis of Hall Effect Sensors in Brushless DC Motor Drives by Ali Mousmi; Ahmed Abbou; Yassine El Houm is a Engineering article available to read on EtoBox.

What is Binary Diagnosis of Hall Effect Sensors in Brushless DC Motor Drives about?

Commonly, three Hall effect sensors are used to detect the rotor position in brushless motors. Since one of these sensors may fail and lead to unstable operation, fault-tolerant control (FTC) of Hall sensor drives has attracted renewed research attention recently to ensure very high reliability. This article presents simple combinatory functions to detect fails in Hall effect sensors based only on Hall sensors signals, which require just a memory of 3 b. The proposed method guarantees more reliability and overcomes erroneous alarms that can be triggered by previous fault diagnosis methods using the information on the observed acceleration, which may be the subject of unexpected variations and lead consequently to false diagnosis. In addition, the article opens the discussion about the BLDC startup with a faulty sensor, in order to perform FTC algorithms ensuring a long use of the motor given the difficulty to repair Hall effect sensors inserted between the coils inside the stator. To confirm the theoretical analysis, experimental results are reported and limitations on the performances of the faulty system in terms of fault detection and signal reconstruction algorithm are discusse

Who reads Binary Diagnosis of Hall Effect Sensors in Brushless DC Motor Drives?

Author

Ali Mousmi; Ahmed Abbou; Yassine El Houm

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Published

2020

Language

EN

Field

Engineering (Physical Sciences)