Multiple parametric faults diagnosis for power electronic circuits based on hybrid bond graph and genetic algorithm

Wu, Yi; Wang, Youren; Jiang, Yuanyuan; Sun, Quan

doi:10.1016/j.measurement.2016.06.018

Cited by 33 publications

(12 citation statements)

References 24 publications

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“…If one of the capacitors of voltage multiplier cells fails, then still the converter can work with a reduced gain of 75%. If both the capacitors 29,30 fail, then the converter will continue to work with a gain of 45%. If only the output diode or capacitor fails, then only the converter will not work.…”

Section: Comparison With Existing Topologiesmentioning

confidence: 99%

A high gain noninverting DC–DC converter with low voltage stress for industrial applications

Ahmad

Siddique

Sarwar

et al. 2021

Circuit Theory & Apps

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A noninverting DC–DC converter with high voltage gain and low voltage stress on the switches for industrial applications is proposed in this research article. The proposed converter has used a voltage multiplier cell twice in the circuit that gives the proposed converter a symmetrical configuration and provides low voltage stress across both the switches. The symmetrical configuration of the proposed converter makes it easier to select the components. The proposed converter provides a voltage gain that is more than three times of the conventional boost converter. A 200‐W hardware prototype of the proposed converter has been developed and tested under continuous conduction for static and dynamic conditions. The power loss analysis is done using PLECS software by incorporating the real parameters of switches and diodes from the datasheet. The converter performance is found to be good in open‐loop conditions and is in agreement with the theoretical analysis.

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Section: Comparison With Existing Topologiesmentioning

confidence: 99%

A high gain noninverting DC–DC converter with low voltage stress for industrial applications

Ahmad

Siddique

Sarwar

et al. 2021

Circuit Theory & Apps

View full text Add to dashboard Cite

show abstract

“…On the other hand, it should be noted that the proposed converters have a small number of components, which can result in lower costs and a less complex operation. Briefly, as presented in previous studies, 36–39 the small number of components reduces technical faults, which implies greater reliability for these converters. Furthermore, based on the proposed cells (Figure 2), new topologies can be derived.…”

Section: Performance Evaluationmentioning

confidence: 96%

Voltage multiplier applied to boost DC–DC converter: Analysis, design, and performance evaluations

Hoch

Faistel

Toebe

et al. 2021

Circuit Theory & Apps

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Summary This paper presents a new voltage multiplier with a small number of components, composed of a coupled inductor and a switched capacitor cell, which allow four different configurations. To evaluate these configurations, these cells were integrated into the boost converter, thus generating four new high voltage gain topologies. These topologies have different characteristics: thus, the principle of operation, voltage gain, voltage and current stress, and design guidelines of each converter were evaluated. Finally, four prototypes of 30 V/400 V and 200 W were built and evaluated experimentally.

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“…The value of

R_{on}

will increase as the increasing operation temperature. The end‐of‐life criteria are the increased 20% of the initial value [34].…”

Section: Simulation Experimentsmentioning

confidence: 99%

Incipient fault diagnosis method for DC–DC converters based on sensitive fault features

Jiang

Liu³

et al. 2020

IET power electron.

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DC-DC converters play an important role in electrical systems. The fault state of a DC-DC converter has a major impact on the operation of the back-end components and the entire electrical system. Therefore, the fault diagnosis is very necessary when the fault state of DC-DC is in the early stage. It can decrease the likelihood of happening the serious faults that may result in the enormous economic loss. To effectively diagnose the incipient fault in DC-DC converters, an incipient fault diagnosis method based on sensitive fault features is proposed. Firstly, for each type of the incipient fault, this study obtains the statistical features in time domain and the wavelet analysis local energy values in the frequency domain of the output. Then to further improve the incipient fault diagnosis accuracy, this study removes the redundant fault features based on overlap calculation, the unique fault features for each type of incipient fault will be selected. Finally, these sensitive fault features are used to build support vector data description models, which can diagnose the incipient faults. Simulation and hardware experimental results validate the practicability and effectiveness of the proposed method.

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Multiple parametric faults diagnosis for power electronic circuits based on hybrid bond graph and genetic algorithm

Cited by 33 publications

References 24 publications

A high gain noninverting DC–DC converter with low voltage stress for industrial applications

A high gain noninverting DC–DC converter with low voltage stress for industrial applications

Voltage multiplier applied to boost DC–DC converter: Analysis, design, and performance evaluations

Incipient fault diagnosis method for DC–DC converters based on sensitive fault features

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