Derivation of Dual-Switch Step-Down DC/DC Converters With Fault-Tolerant Capability

Lu, Dylan Dah-Chuan; Soon, John Long; Verstraete, Dries

doi:10.1109/tpel.2016.2530853

Cited by 25 publications

(7 citation statements)

References 18 publications

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“…With this fault‐tolerant architecture, operation at either buck/boost or buck mode is possible. In simple, this fault‐tolerant buck converter has one extra power switch compared to normal buck converter [109].…”

Section: Fault‐tolerant Strategiesmentioning

confidence: 99%

Review on fault‐diagnosis and fault‐tolerance for DC–DC converters

Kumar

Elangovan

2020

IET Power Electronics

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The DC-DC converters operate extensively in a variety of industrial applications such as electric vehicles, renewable energy systems, aerospace applications, consumer electronics (smartphones, laptops, etc.) and energy storage solutions. The reliability of the DC-DC converters is of a greater significance. The research endeavours made in enhancing the reliability of the DC-DC converters are still very limited and dispersed. Due to the rapid growth in semiconductor technology, the DC-DC converters have an endless number of topologies, with various operating principles and functionalities. Enhancement of the reliability of all types of DC-DC converters is still a challenging task. Power switches are the most fragile components in converter circuits, which inherently fall prey to the faults occurring in the system. Hence, there is always a requirement to take appropriate remedial measures to deal with all kinds of faults. Further, in order to detect the occurrence of fault a fast faultdiagnosis and fault-tolerant strategies in the DC-DC converters is mandatory and the same has to be embedded in the converter for safety purpose. In view of the importance of the same, the fault-diagnostic algorithms and fault-tolerant strategies developed in the literature, by various researchers are furnished in a single document after conducting an exhaustive review.

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Section: Fault‐tolerant Strategiesmentioning

confidence: 99%

Review on fault‐diagnosis and fault‐tolerance for DC–DC converters

Kumar

Elangovan

2020

IET Power Electronics

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“…Due to the lack of redundancy of the single-switch buck converter, a single OC fault completely shuts down the converter operation. To solve the problem, a fault-tolerant architecture of a buck converter is derived from the equivalent circuit of two distinctive DC-DC converter topologies [52] . Operation at either buck or buck/boost mode is feasible while adopting the faulttolerant architecture.…”

Section: Inclusion Of Additional Discrete Componentsmentioning

confidence: 99%

“…Operation at either buck or buck/boost mode is feasible while adopting the faulttolerant architecture. In comparison to the traditional buck converter, the fault-tolerant buck converter includes one additional power switch [52] .…”

Section: Inclusion Of Additional Discrete Componentsmentioning

confidence: 99%

A comprehensive survey on fault diagnosis and fault tolerance of DC-DC converters

2018

Chin. J. Electr. Eng.

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DC-DC converters are becoming more commonly used in power conversion solutions for energy management purposes, being employed in an ever-increasing range of DC-based applications, such as LED lighting, electric vehicles, energy storage solutions, and consumer electronics (laptops, smartphones, etc.). In this context, efficiency and reliability are critical. The research efforts made in improving reliability of DC-DC converters are still quite narrow and scattered. Moreover, DC-DC converters take the shape of an endless number of topologies, with different functionalities and operation principles, thus complicating the task of improving reliability of all forms of DC-DC converters. Consequently, compiling the information about the main failure modes, corresponding fault diagnostic algorithms and fault tolerance strategies developed so far, in a single document, becomes increasingly necessary. Accordingly, this paper presents an up-to-date review of the recent achievements attained regarding the improvement of availability and reliability of DC-DC converters.

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“…In addition to the above‐mentioned papers that reliability evaluation of power electronic converters was considered in them, many fault‐tolerant converters were proposed to increase the reliability of power electronic systems . Some of the fault‐tolerant DC‐DC converter structures were also proposed in Haji‐Esmaeili et al, Luh et al, Jamshidpour et al, Catelani et al, and Baldanzi et al…”

Section: Introductionmentioning

confidence: 99%

“…In addition to the above-mentioned papers that reliability evaluation of power electronic converters was considered in them, many fault-tolerant converters were proposed to increase the reliability of power electronic systems. 10 [18][19][20][21][22] Among the different structures of DC-DC converters, impedance network-based circuits are a leading technology in energy conversion, which by means of using different impedance networks have overcome the limitations of the conventional structures. These converters with various topologies have been able to reduce the energy conversion stages, which leads to higher reliability and efficiency of systems.…”

Section: Introductionmentioning

confidence: 99%

Reliability challenge for impedance network‐based DC‐DC boost converters

Haji-Esmaeili

Babaei

2017

Circuit Theory & Apps

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Summary In this paper, reliability evaluation is proposed for some of the most famous impedance network‐based DC‐DC boost converters. Markov reliability approach is used to evaluate the reliability of the converters. Also, some other factors such as components' failure rates, reliability functions, and mean time to failures are introduced and evaluated. Detailed explanations for the evaluation methods of the mentioned factors are also provided in the context of the paper. In addition to the mathematical analysis, numerical calculations are also done through the simulation results of the converters. Simulations are done in PSCAD/EMTDC. Finally, a numerical and graphical reliability comparison is provided for the mentioned converters. The purpose of this paper is to give a comprehensive reliability evaluation and comparison for some of the most popular impedance network‐based DC‐DC converters. In addition, this paper gives a detailed reliability analysis that can be used in reliability assessment of all types of power electronic converters, so it can help the researchers to consider reliability calculations into their designing.

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Derivation of Dual-Switch Step-Down DC/DC Converters With Fault-Tolerant Capability

Cited by 25 publications

References 18 publications

Review on fault‐diagnosis and fault‐tolerance for DC–DC converters

Review on fault‐diagnosis and fault‐tolerance for DC–DC converters

A comprehensive survey on fault diagnosis and fault tolerance of DC-DC converters

Reliability challenge for impedance network‐based DC‐DC boost converters

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