A New Algorithm for Real-Time Multiple Open-Circuit Fault Diagnosis in Voltage-Fed PWM Motor Drives by the Reference Current Errors

Estima, Jorge O.; Cardoso, António J. Marques

doi:10.1109/tie.2012.2188877

Cited by 323 publications

(137 citation statements)

References 31 publications

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“…However, in practice a different value can be chosen for this threshold. The fault localization block samples and calculates the average value of the converter output current simplified by equation (5) (6) where Ῑ is the average value of the phase current in one fundamental period. The Ῑ value is compared with a positive and a negative threshold value.…”

Section: Proposed Fd Methodsmentioning

confidence: 99%

See 1 more Smart Citation

FPGA Based Robust Open Transistor Fault Diagnosis and Fault Tolerant Sliding Mode Control of Five-Phase PM Motor Drives

Salehifar¹,

Arashloo²,

Eguilaz³

et al. 2015

Journal of Power Electronics

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The voltage-source inverters (VSI) supplying a motor drive are prone to open transistor faults. To address this issue in faulttolerant drives applicable to electric vehicles, a new open transistor fault diagnosis (FD) method is presented in this paper. According to the proposed method, in order to define the FD index, the phase angle of the converter output current is estimated by a simple trigonometric function. The proposed FD method is adaptable, simple, capable of detecting multiple open switch faults and robust to load operational variations. Keeping the FD in mind as a mandatory part of the fault tolerant control algorithm, the FD block is applied to a five-phase converter supplying a multiphase fault-tolerant PM motor drive with nonsinusoidal unbalanced current waveforms. To investigate the performance of the FD technique, the fault-tolerant sliding mode control (SMC) of a five-phase brushless direct current (BLDC) motor is developed in this paper with the embedded FD block. Once the theory is explained, experimental waveforms are obtained from a five-phase BLDC motor to show the effectiveness of the proposed FD method. The FD algorithm is implemented on a field programmable gate array (FPGA).

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Section: Proposed Fd Methodsmentioning

confidence: 99%

“…This technique is known as the reference based FD method. To make the diagnostic variable independent from the load parameters, the residue value has been normalized with respect to the average absolute value of the load current [6]. However, the application of this method is limited to systems with a closed loop control.…”

Section: Introductionmentioning

confidence: 99%

FPGA Based Robust Open Transistor Fault Diagnosis and Fault Tolerant Sliding Mode Control of Five-Phase PM Motor Drives

Salehifar¹,

Arashloo²,

Eguilaz³

et al. 2015

Journal of Power Electronics

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show abstract

“…It is important that, in accordance with these techniques, no additional measurement systems are utilized, in most cases. Many transistor failure monitoring techniques are based on the analysis of standardized errors between the reference estimated, predicted or measured variables [10][11][12][13][14][15]. For this purpose, the average values of these errors, which are additionally normalized by dividing them by the module of the variable vector, are calculated.…”

Section: Introductionmentioning

confidence: 99%

Detection of single and multiple IGBTs open-circuit faults in a field-oriented controlled induction motor drive

Sobanski

Orłowska-Kowalska

2017

Archives of Electrical Engineering

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Abstract:In this paper a transistor open-circuit fault diagnosis method in a rotor field oriented controlled induction motor drive, fed by a two-level voltage inverter has been proposed. The diagnostic procedure ensures detection and localization of single or multiple power switch failures in time shorter than one period of a stator current fundamental harmonic, without regard to a drive operation point. A new simple scheme of the diagnostic system is proposed. In order to validate the proposed transistor fault diagnostic method, a detailed simulation as well as experimental tests of the field-oriented control drive system were carried out and some of them are shown in this paper.

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“…In industrial applications, where safe and reliable operation is always expected, it is important to monitor the condition of power electronic switches in inverters. As the number of level increases, number of power electronic switches also increases which leads to increase in probability of failure of any switch and hence any such fault should be detected at the earliest in order to avoid the operation of drive and motor under abnormal conditions [4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…Some researchers used the inverter current [8][9] and inverter output voltage [11][12][13][14][15] to develop the fault diagnostic system. Surin Khomfoi et al [13], developed an open-switch fault diagnostic system of a multilevel inverter using the output voltage FFT pattern and five parallel neural networks with 40 input neurons per network.…”

Section: Introductionmentioning

confidence: 99%

Identification of Open-Switch and Short-Switch Failure of Multilevel Inverters through DWT and ANN Approach using LabVIEW

Parimalasundar¹,

Vanitha²

2015

Journal of Electrical Engineering and Technology

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-In recent times, multilevel inverters are given high priority in many large industrial drive applications. However, the reliability of multilevel inverters are mainly affected by the failure of power electronic switches. In this paper, open-switch and short-switch failure of multilevel inverters and its identification using a high performance diagnostic system is discussed. Experimental and simulation studies were carried out on five level cascaded H-Bridge multilevel inverter and its output voltage waveforms were analyzed at different switch fault cases and at different modulation index values. Salient frequency domain features of the output voltage signal were extracted using the discrete wavelet transform multi resolution signal decomposition technique. Real time application of the proposed fault diagnostic system was implemented through the LabVIEW software. Artificial neural network was trained offline using the Matlab software and the resultant network parameters were transferred to LabVIEW real time system. In the proposed system, it is possible to precisely identify the individual faulty switch (may be due to open-switch (or) short-switch failure) of multilevel inverters.

show abstract

A New Algorithm for Real-Time Multiple Open-Circuit Fault Diagnosis in Voltage-Fed PWM Motor Drives by the Reference Current Errors

Cited by 323 publications

References 31 publications

FPGA Based Robust Open Transistor Fault Diagnosis and Fault Tolerant Sliding Mode Control of Five-Phase PM Motor Drives

FPGA Based Robust Open Transistor Fault Diagnosis and Fault Tolerant Sliding Mode Control of Five-Phase PM Motor Drives

Detection of single and multiple IGBTs open-circuit faults in a field-oriented controlled induction motor drive

Identification of Open-Switch and Short-Switch Failure of Multilevel Inverters through DWT and ANN Approach using LabVIEW

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