Fault detection and isolation on a PWM inverter by knowledge-based model

Peuget, R.; Courtine, S.; Rognon, Jean-Pierre

doi:10.1109/ias.1997.629048

Cited by 157 publications

(56 citation statements)

References 6 publications

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“…An analysis of the current space vector trajectory is very effective in open-circuit fault diagnosis. In [17]- [19], the slope of the current space vector trajectory is used to identify faulty legs and the missing half-cycle of the current waveform is employed to locate faulty switches. The instantaneous frequency of the AC current space vector [17] is zero on the diameter of semicircle when an open-circuit fault occurs.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Two Diagnostic Methods Based on the Switching Voltage Pattern for IGBT Open-Circuit Faults in Voltage-Source Inverters

Wang¹,

Li²,

Xu³

2016

Journal of Power Electronics

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This paper reports an investigation conducted on two diagnostic methods based on the switching voltage pattern of IGBT open-circuit faults in voltage-source inverters (VSIs). One method was based on the bridge arm pole voltage, and the other was based on bridge arm line voltage. With an additional simple circuit, these two diagnostic methods detected and effectively identified single and multiple open-circuit faults of inverter IGBTs. A comparison of the times for the diagnosis and anti-interference features between these two methods is presented. The diagnostic time of both methods was less than 280ns in the best case. The diagnostic time for the method based on the bridge arm pole voltage was less than that of the method based on the bridge arm line voltage and was 1/2 of the fundamental period in the worst case. An experimental study was carried out to show the effectiveness of and the differences between these two methods.

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Section: Introductionmentioning

confidence: 99%

A Comparative Study of Two Diagnostic Methods Based on the Switching Voltage Pattern for IGBT Open-Circuit Faults in Voltage-Source Inverters

Wang¹,

Li²,

Xu³

2016

Journal of Power Electronics

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“…In papers [4][5][6][7][8][9][10][11][12] open-switch fault diagnostic methods based on the analysis of the current vector hodograph function in the α-β complex plane were presented. In case of the first technique [4], a failure detection and a localization is achieved if an absolute value of the current vector exceeds some threshold at the time, when it takes characteristic position in the α-β coordinate system.…”

Section: Introductionmentioning

confidence: 99%

“…In case of the first technique [4], a failure detection and a localization is achieved if an absolute value of the current vector exceeds some threshold at the time, when it takes characteristic position in the α-β coordinate system. According to a diagnostic technique introduced in [5], localization of a faulty inverter phase is realized by an analysis of the current vector hodograph also, but a faulty switch can be recognized thanks to the knowledge of phase currents polarity. In the papers [6,7], an expansion of the previously described diagnostic methods was presented.…”

Section: Introductionmentioning

confidence: 99%

“…Extraction of the transistors faults symptoms is only based on tracking the angle between the stator current space vector and the α axis of the complex α-β coordinate system and the motor speed measurement. In comparison to previously described stator current-based diagnostic methods [4,5], in the proposed technique a new failure localization procedure was carried on.…”

Section: Introductionmentioning

confidence: 99%

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Simple diagnostic technique of a single IGBT open-circuit faults for a SVM-VSI vector controlled induction motor drive

Orłowska-Kowalska¹,

Sobanski²

2015

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. In this paper a simple diagnostic system for a single IGBT open-circuit faults for a two level voltage inverter-fed field oriented controlled induction motor drive was presented. A fault diagnostic procedure is carried out by utilizing an analysis of a stator current vector trajectory in α-ß coordinates. An extraction of the failure information is based on monitoring of an angle between the stator current space vector and the α axis. Thanks to a diagnostic signal normalization, high robustness to false diagnosis alarms is guaranteed. To confirm the proposed method, simulation results under a wide range working condition of the induction motor drive were presented.

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“…Peuget suggested two methods which are based on an analysis of the current vector trajectory and the instantaneous frequency for detecting faults. However, the technique using an analysis of the instantaneous frequency cannot identify faulty switches [5]. Zidani proposed a fuzzy based technique which detects and indentifies faulty switches in a voltage-fed PWM inverter for an induction motor drive using the Concordia current patterns.…”

Section: Introductionmentioning

confidence: 99%

Fault Diagnosis of a Voltage-Fed PWM Inverter for a Three-parallel Power Conversion System in a Wind Turbine

Lee²

2010

Journal of Power Electronics

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In this paper, a fault diagnosis method based on fuzzy logic for the three-parallel power converter in a wind turbine system is presented. The method can not only detect both open and short faults but can also identify faulty switching devices without additional voltage sensors or an analysis modeling of the system. The location of a faulty switch can be indicated by six-patterns of a stator current vector and the fault switching device detection is achieved by analyzing the current vector. A fault tolerant algorithm is also presented to maintain proper performance under faulty conditions. The reliability of the proposed fault detection technique has been proven by simulations and experiments with a 10kW simulator.

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Fault detection and isolation on a PWM inverter by knowledge-based model

Cited by 157 publications

References 6 publications

A Comparative Study of Two Diagnostic Methods Based on the Switching Voltage Pattern for IGBT Open-Circuit Faults in Voltage-Source Inverters

A Comparative Study of Two Diagnostic Methods Based on the Switching Voltage Pattern for IGBT Open-Circuit Faults in Voltage-Source Inverters

Simple diagnostic technique of a single IGBT open-circuit faults for a SVM-VSI vector controlled induction motor drive

Fault Diagnosis of a Voltage-Fed PWM Inverter for a Three-parallel Power Conversion System in a Wind Turbine

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