Survey on Fault-Tolerant Techniques for Power Electronic Converters

Zhang, Wenping; Xu, Dehong; Enjeti, P.N.; Li, Haijin; Hawke, Joshua; Krishnamoorthy, Harish S.

doi:10.1109/tpel.2014.2304561

Cited by 495 publications

(255 citation statements)

References 80 publications

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“…The faulty sensor is replaced with the healthy ones. In the case of transistor failures the redundant converter topologies are required [6,7]. First, the faulty transistor is isolated and then, thanks to the converter circuit reconfigurations, the postfault control is implemented.…”

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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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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“…In [8], B4 inverters are used for integrating renewable energy sources into microgrid system. Recently, B4 topology is being studied as a provision for the emergency operation against inverter failure as well [9]. To drive PMSM with cost-effective way, this paper applies B4 topology as well as sensorless scheme to PMSM controller.…”

Section: Introductionmentioning

confidence: 99%

Sensorless Control of PMSM by a Four-Switch Inverter with Compensation of Voltage Distortion and Adjustment of Position Estimation Gain

Kim¹,

Lee²

2017

Journal of Electrical Engineering and Technology

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-This paper proposes performance improvement schemes for sensorless PMSM control drive using a four-switch three-phase inverter (so-called B4 inverter). In the proposed scheme, the back-EMF estimation-based sensorless control algorithm is used to control the brushless PMSM without position sensors. In order to have stable operation, this paper presents a gain adjustment scheme that compensates the reduction of stable sensorless operation range as long as the rotor speed increases. In B4 topology, the center point of dc-link capacitors is connected to 3-phase load, and it is prone to have the load current distortion. Hence, to mitigate this problem, a distortion compensation scheme by modifying voltage commands using measured dc-link potentials is proposed in this paper. The validity of the proposed method is evaluated by simulations and experiments.

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“…The fault tolerant feature contributes to increase the availability of system and several fault tolerance methods have been proposed in literature [17]- [20]. Most of these methods includes a significant amount of extra hardware (such as semiconductors/leg redundancy [17], [19] or series connection of fuses/switches to isolate the fault [17], [18], [20]), increasing the cost and compromising the efficiency of the system. In this context, this paper proposes a fault tolerance solution with minimum of additional hardware and no impact on efficiency for the SRC converter, using the advantage of inherent fault tolerant capability of this topology.…”

Section: Introductionmentioning

confidence: 99%

Bidirectional series-resonant DC-DC converter with fault-tolerance capability for smart transformer

Costa

Buticchi

Liserre

2016

2016 IEEE Energy Conversion Congress and Exposition (ECCE)

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Abstract-The Series-Resonant dc-dc converter (SRC) is widely used in several application and it became very popular in Smart Transformer application. In this application, fault tolerance is a highly desired feature and it is obtained through redundancy. This paper proposes a reconfiguration scheme for the SRC for the case of failure in one semiconductor, which could drastically reduce the need of redundancy. Using the proposed scheme, the full-bridge based SRC can be reconfigured in a half-bridge topology, in order to keep the converter operational even with the failure (open circuit or short circuit) of one switch. The theoretical analysis is carried out for the unidirectional SRC and then extended to the bidirectional topology, since bidirectionality is required in smart transformer application. To verify the feasibility of the proposed scheme, the converter is tested experimentally in a 700 V to 600 V prototype with 10 kW of output power. A IGBT short-circuit fault is tested and the results confirms the effectiveness of the proposed approach.

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Survey on Fault-Tolerant Techniques for Power Electronic Converters

Cited by 495 publications

References 80 publications

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

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

Sensorless Control of PMSM by a Four-Switch Inverter with Compensation of Voltage Distortion and Adjustment of Position Estimation Gain

Bidirectional series-resonant DC-DC converter with fault-tolerance capability for smart transformer

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