Model-based methodology using modified sneak circuit analysis for power electronic converter fault diagnosis

Soman, Ruturaj; Davidson, E.M.; McArthur, S.D.J.; Fletcher, John; Ericsen, T.

doi:10.1049/iet-pel.2011.0018

Cited by 14 publications

(5 citation statements)

References 59 publications

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“…Some methods have been invented to identify operating modes of power electronic converters including generalized connection matrix method, adjacency matrix method, and mesh combination method [10,14,16,17]. However, the above methods are not suitable for converters with large number of switching devices because the calculations and analysis complexity increase dramatically with the growing number of switching devices.…”

Section: Mode Identification Principlementioning

confidence: 99%

Recognition and Analysis of Unexpected Modes of Modular Multilevel Converter

et al. 2021

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Section: Mode Identification Principlementioning

confidence: 99%

Recognition and Analysis of Unexpected Modes of Modular Multilevel Converter

et al. 2021

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“…With the maturity of technology in DC circuit breakers [24], DC cables [25], MVDC system is deemed as advantageous for power distribution. Following the introduction of MVDC in [9], we simulated and studied a shipboard IPS with MVDC distribution architecture as shown in Figure 1. In this topology, the main power source are two Main Gas Turbine Generators (MTGs).…”

Section: Mvdc Systemmentioning

confidence: 99%

“…To address the challenge of reliably powering the all-electric ship, several efforts have been made. Different distribution architectures such as Medium Voltage Alternative Current (MVAC), High Frequency Alternative Current (HFAC), and Medium Voltage Direct Current (MVDC), have been analyzed [5,9]. Such research efforts reached a conclusion that MVDC system is projected as the optimal distribution architecture for IPS.…”

Section: Introductionmentioning

confidence: 99%

Real Time Impact Control on Charging Energy Storage For Shipboard Power Systems

Luo,

Srivastava,

Mohanpurkar

et al. 2018

Preprint

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Medium voltage direct-current based integrated power system is projected as one of the solutions for powering the all-electric ship. It faces significant challenges for accurately energizing advanced loads, especially the pulsed power load, which can be rail gun, high power radar, and other state of art equipment. Energy storage based on supercapacitors is proposed as a technique for buffering the direct impact of pulsed power load on the power systems. However, the high magnitude of charging current of the energy storage can pose as a disturbance to both distribution and generation systems. This paper presents a fast switching device based real time control system that can achieve a desired balance between maintaining the required power quality and fast charging the energy storage in required time. Test results are shown to verify the performance of the proposed control algorithm.

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“…The conventional fault diagnosis methods for power electronic devices can be categorised into current detection, voltage detection, and pattern recognition [11][12][13][14][15]. The first two methods compare the output signal with the threshold values to find the fault.…”

Section: Introductionmentioning

confidence: 99%

Fault diagnosis scheme for open‐circuit faults in switched reluctance motor drives using fast Fourier transform algorithm with bus current detection

Gan

Yang

et al. 2016

IET Power Electronics

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Reliability of power converters is of crucial importance in switched reluctance motor drives used for safetycritical applications. Open-circuit faults in power converters will cause the motor to run in unbalanced states, and if left untreated, they will lead to damage to the motor and power modules, and even cause a catastrophic failure of the whole drive system. This study is focused on using a single current sensor to detect open-circuit faults accurately. An asymmetrical half-bridge converter is considered in this study and the faults of single-phase open and two-phase open are analysed. Three different bus positions are defined. On the basis of a fast Fourier transform algorithm with Blackman window interpolation, the bus current spectrums before and after open-circuit faults are analysed in details. Their fault characteristics are extracted accurately by the normalisations of the phase fundamental frequency component and double phase fundamental frequency component, and the fault characteristics of the three bus detection schemes are also compared. The open-circuit faults can be located by finding the relationship between the bus current and rotor position. The effectiveness of the proposed diagnosis method is validated by the simulation results and experimental tests.

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Model-based methodology using modified sneak circuit analysis for power electronic converter fault diagnosis

Cited by 14 publications

References 59 publications

Recognition and Analysis of Unexpected Modes of Modular Multilevel Converter

Recognition and Analysis of Unexpected Modes of Modular Multilevel Converter

Real Time Impact Control on Charging Energy Storage For Shipboard Power Systems

Fault diagnosis scheme for open‐circuit faults in switched reluctance motor drives using fast Fourier transform algorithm with bus current detection

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