Fault Diagnosis in Three-Phase Thyristor Converters Using Microprocessor

Murty, Y.V.V.S.; Dubey, G. K.; Sinha, R.M.K.

doi:10.1109/tia.1984.4504632

Cited by 18 publications

(2 citation statements)

References 4 publications

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“…Scholars have conducted significant researches on the rectifier fault analysis and diagnosis in generator-rectifier system [5], [6]. But most of the works focused on the conventional 3-phase generator system.…”

Section: Introductionmentioning

confidence: 99%

Analysis and diagnosis on open-circuit fault of diode rectifier in 12-phase synchronous generator system

Huang

Sun

Wang

et al. 2014

2014 16th European Conference on Power Electronics and Applications

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This paper deals with a 12-phase synchronous generator with open-circuit fault of diode rectifier. Considering all space harmonics of air-gap magnetic field and the changing circuit topology, the mathematical model of the system is established based on the multiloop theory of machine. A series of experiments have been conducted on a 4-kW 12-phase synchronous model machine. The acceptable agreement between the simulated and experimental result validates the modeling process. Based on the analysis, the features of the open-circuit fault of rectifier are summarized. Finally, the algorithm of DC voltage odd harmonic detection is raised.

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Section: Introductionmentioning

confidence: 99%

Analysis and diagnosis on open-circuit fault of diode rectifier in 12-phase synchronous generator system

Huang

Sun

Wang

et al. 2014

2014 16th European Conference on Power Electronics and Applications

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“…따라서 3상 다이오드 정류기의 고장상황 에 따라 발생되는 직류단의 전압 패턴을 분석함으로서 고장발생 여부 및 고장의 종류를 판별하여 시스템을 보호할 필요성이 있다. 기존의 정류기 고장 진단 알고리즘으로는 각각의 소 자의 전압과 전류를 검출하는 방식 [3]- [4] , Neural Network를 이용한 방식 [5,6] , 웨이브렛 분석을 이용한 방식 [7]- [9]…”

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Fault Diagnosis for 3-Phase Diode Rectifier using Harmonic Ripples of DC Link Voltage

Park¹,

Baek²,

Kim

et al. 2011

The Transactions of the Korean Institute of Power Electronics

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The fault analysis and detecting algorithm for a 3 phase diode rectifier is proposed. The 3 phase diode rectifier is used for the AC power rectifier of the PWM inverter. The input power or diode faults cause the ripples of the DC voltage, degradation of the control performance and life shortening of the DC link capacitor. In this paper, the ripple of the DC voltage is mathematically analyzed for the earth fault of input power and open circuit fault of the diode, respectively. The fault detection and type of fault can be obtained by comparing the average DC voltage and the instant DC voltage which is sampled with 6 times of grid frequency. The proposed method can be easily applicable and doesn't require additional circuit. The experimental and simulation results are presented to verify the validity of the proposed method.

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Analysis on the fault operations of 3-phase a.c./d.c. full-controlled converters

Moo

Chang

1997

Energy Conversion and Management

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Fault Diagnosis in Three-Phase Thyristor Converters Using Microprocessor

Cited by 18 publications

References 4 publications

Analysis and diagnosis on open-circuit fault of diode rectifier in 12-phase synchronous generator system

Analysis and diagnosis on open-circuit fault of diode rectifier in 12-phase synchronous generator system

Fault Diagnosis for 3-Phase Diode Rectifier using Harmonic Ripples of DC Link Voltage

Analysis on the fault operations of 3-phase a.c./d.c. full-controlled converters

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