A simple fault tolerant control system for Hall Effect sensors failure of BLDC motor

Tashakori, A.; Ektesabi, Mehran

doi:10.1109/iciea.2013.6566515

Cited by 64 publications

(22 citation statements)

References 7 publications

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“…Although the investigation of Hall-effect position sensor faults is a relatively new research topic, various methods for fault diagnosis and remedial strategies have been proposed both for the misalignment defect and the breakdown fault. Focusing on the latter fault type, single sensor fault diagnosis based on line-to-line voltages, Discrete Fourier Transform, and spectral energy density is proposed in [19]. Moreover, DC-link current and wavelet signal theory were used in [20], while motor phase current analysis with the Stockwell Transform is presented in [21].…”

Section: Introductionmentioning

confidence: 99%

Vibration Monitoring for Position Sensor Fault Diagnosis in Brushless DC Motor Drives

et al. 2021

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A non-invasive technique for condition monitoring of brushless DC motor drives is proposed in this study for Hall-effect position sensor fault diagnosis. Position sensor faults affect rotor position feedback, resulting in faulty transitions, which in turn cause current fluctuations and mechanical oscillations, derating system performance and threatening life expectancy. The main concept of the proposed technique is to detect the faults using vibration signals, acquired by low-cost piezoelectric sensors. With this aim, the frequency spectrum of the piezoelectric sensor output signal is analyzed both under the healthy and faulty operating conditions to highlight the fault signature. Therefore, the second harmonic component of the vibration signal spectrum is evaluated as a reliable signature for the detection of misalignment faults, while the fourth harmonic component is investigated for the position sensor breakdown fault, considering both single and double sensor faults. As the fault signature is localized at these harmonic components, the Goertzel algorithm is promoted as an efficient tool for the harmonic analysis in a narrow frequency band. Simulation results of the system operation, under healthy and faulty conditions, are presented along with the experimental results, verifying the proposed technique performance in detecting the position sensor faults in a non-invasive manner.

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Section: Introductionmentioning

confidence: 99%

Vibration Monitoring for Position Sensor Fault Diagnosis in Brushless DC Motor Drives

et al. 2021

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“…In [7], [8], the diagnosis and mitigation of Hall-effect sensors malfunction using fault identification and mitigation techniques in a grid-connected photovoltaic system are presented. The same problem was solved for a brushless DC motor application using the direct redundancy-based approach [9], [10]. These works have not considered different types of sensor faults for the diagnosis and design of fault-tolerant control systems.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Sensor Faults in Power Electronics Inverters and Impact Assessment on Power Quality

Mehmood

Papadopoulos

Hadjidemetriou

et al. 2021

2021 IEEE Madrid PowerTech

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Sensors are crucial for the operation of power electronics converters. Voltage and current sensors, widely used in power electronic converter systems, are prone to malfunction or failure mainly due to varying environmental conditions, broken connectors, and ageing of electronic circuit components. Therefore, it is important to characterize the behavior of these sensors under a number of possible faulty conditions and study their impact on the performance of the system. Further, the distinct behavior of such sensors, under different fault types, encourages us to correlate them with the generic fault models. In this paper, a root cause analysis for each type of sensor fault is presented and experimental validation for five fault models is performed, where the parameters of key components in the power electronics voltage and current sensor are intentionally modified to emulate a specific type of fault. Moreover, the impact of each fault on the power quality of Grid Side Converter (GSC) under various types and magnitudes of sensor faults are assessed and validated experimentally. The results of this work are useful to ensure the design for the reliability approach in power electronics converters and provide an assessment of the impact of a sensor failure in the overall operation of power electronics converters. Further, the impact of sensor faults in the overall operation of a power electronics converters give some directions to design algorithms that can improve the reliability and robustness of the power electronics converters.Index Terms-Circuit faults, DC-AC power converters, fault models, power quality, sensor systems.

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“…In [1], the amount and position of faulted elements are identified based on the output signals, with improved orthogonal phase-locked loop. In [2], the proposed system is capable to detect and identify the Hall Effect sensors breakdown based on sensors signals and discrete Fourier transform analysis of the measured line voltages of the motor. The Hall signals are transformed into a spatially rotating vector, and a vector-tracking observer is used for the fault diagnostics and compensations [3].…”

Section: Introductionmentioning

confidence: 99%

New fault‐tolerant control method for Hall signals in brushless DC motor driver of E‐bicycle

et al. 2020

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A new fault-tolerant control method for Hall sensors in brushless DC motor driver of E-bicycle is presented. Contrary to the classical fault-tolerant control method that focused their attention on fault diagnosis, the proposed method uses pulse-width modulation input capture function to extract sensors' effective information and eliminate fault information, which helps to omit the process of fault diagnosis and improve the efficiency of fault-tolerant control. The effective information of Hall sensors includes edge jump information and velocity information, which are used to correct and estimate the rotor angle under field oriented control. The effectiveness and rapidity of the proposed fault-tolerant approach are illustrated through experimental results.

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A simple fault tolerant control system for Hall Effect sensors failure of BLDC motor

Cited by 64 publications

References 7 publications

Vibration Monitoring for Position Sensor Fault Diagnosis in Brushless DC Motor Drives

Vibration Monitoring for Position Sensor Fault Diagnosis in Brushless DC Motor Drives

Modeling of Sensor Faults in Power Electronics Inverters and Impact Assessment on Power Quality

New fault‐tolerant control method for Hall signals in brushless DC motor driver of E‐bicycle

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