Open-circuit fault diagnosis in interleaved DC-DC boost converters and reconfiguration strategy

Bento, Fernando; Cardoso, António J. Marques

doi:10.1109/demped.2017.8062385

Cited by 22 publications

(11 citation statements)

References 20 publications

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“…With the help of gating signals information, several approaches are developed based on sampling the magnitude of inductor current at falling and rising edges. Minute changes in the fault diagnostic algorithms were made and it was successfully implemented in nonisolated bidirectional DC-DC converters [46], multi-input DC-DC converters [47], interleaved DC-DC converters [48], and in nonisolated unidirectional DC-DC converters [49] Current magnitude provides sufficient information for fault diagnostic in the parallel-connected single active bridge (SAB) DC-DC converters. In this method the output current of converter is sampled at pre-established stages, permitting for detecting the OCF and even recognition of module accommodating the faulty switch in less than two switching periods [50].…”

Section: Signal Processing Algorithms Based On Time Domainmentioning

confidence: 99%

“…With the help of gating signals information, several approaches are developed based on sampling the magnitude of inductor current at falling and rising edges. Minute changes in the fault diagnostic algorithms were made and it was successfully implemented in non‐isolated bidirectional DC–DC converters [46], multi‐input DC–DC converters [47], interleaved DC–DC converters [48], and in non‐isolated unidirectional DC–DC converters [49]. The logical relationship between the current magnitude measured at falling and rising edges of gating signals are concerned by OCFs in converter switches as depicted in Fig.…”

Section: Fault Diagnostic Algorithmsmentioning

confidence: 99%

“…Phase shift adjustment, a reconstructed scheme which is normally employed in converter topologies that apply a phase shift modulation method. Accordingly, phase shift adjustment contributes very good results on parallel‐connected SAB converters [50], input parallel output‐series (IPOS) converters [94], and interleaved DC–DC converters [48, 51, 95–98]. The major merits of the phase shift adjustment fault‐tolerant strategy are Low implementation cost. Effectiveness and simplicity. …”

Section: Fault‐tolerant Strategiesmentioning

confidence: 99%

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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: Signal Processing Algorithms Based On Time Domainmentioning

confidence: 99%

“…With the help of gating signals information, several approaches are developed based on sampling the magnitude of inductor current at falling and rising edges. Minute changes in the fault diagnostic algorithms were made and it was successfully implemented in non‐isolated bidirectional DC–DC converters [46], multi‐input DC–DC converters [47], interleaved DC–DC converters [48], and in non‐isolated unidirectional DC–DC converters [49]. The logical relationship between the current magnitude measured at falling and rising edges of gating signals are concerned by OCFs in converter switches as depicted in Fig.…”

Section: Fault Diagnostic Algorithmsmentioning

confidence: 99%

Section: Fault‐tolerant Strategiesmentioning

confidence: 99%

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

Kumar

Elangovan

2020

IET Power Electronics

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“…Alternative approaches, based on the same diagnostic variable, take advantage of the gating signals information to sample the amplitude of the inductor current at the rising and falling edges. Variations of the fault diagnostic algorithm were successfully employed in a multi-input DC-DC converter [14] , non-isolated bidirectional DC-DC converter [15] , non-isolated unidirectional DC-DC converter [16] , and in an interleaved DC-DC boost converter [17] . As confirmed in Fig.…”

Section: Time Domain Signal Processing Based Algorithmsmentioning

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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“…There are many fault detection methods. For example, in [5], the duty cycle inter-partition analysis of drive signal under CCM is conducted to obtain the characteristics of input current, and then, the sampling analysis of input current is conducted. However, in engineering, this method has a high requirement for the precision of current sampling.…”

Section: Introductionmentioning

confidence: 99%