Converter Fault Diagnosis Method Based on Principal Component Analysis Combined with Improved Similarity Classifier

Huang, Juan; Gao, Yating

doi:10.1109/cac48633.2019.8997307

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…At the same time, before selecting the DPFC sub-unit to operate, if the sub-unit with high reliability are selected as the power flow controller to track the reference, the reliability of the whole system will be greatly improved (Huang et al, 2019b;Chen et al, 2019;Huang and Gao, 2019;Zhu et al, 2020). In order to express the reliability index of DPFC sub-unit, a control strategy is proposed in this study as follows:…”

Section: Output Distribution Methods Of Dpfcmentioning

confidence: 99%

Research on the output coordinated strategy of a DPFC considering device fault probability

Chen

Tang²,

Xiong³

et al. 2022

Front. Energy Res.

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A distributed power flow controller (DPFC) can control the line power flow in a flexible and fast way to meet the requirements of a new power system. However, the output of DPFC sub-units is generally distributed by the even distribution method or proportional distribution method at present. The internal health status and output capacity of the device are not taken into account, which affects the efficiency and service life of the device. In this article, a reliability description method of DPFC based on fault probability is proposed. The coordination strategy of output voltage capability and the number of input sub-units is proposed, and the process of the proposed coordinated strategy for device output is presented. The simulation results show that the proposed coordinated output strategy can address the issue of rapid reliability decline caused by the long-term work of some sub-units and improve the overall reliability of the DPFC.

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Section: Output Distribution Methods Of Dpfcmentioning

confidence: 99%

Research on the output coordinated strategy of a DPFC considering device fault probability

Chen

Tang²,

Xiong³

et al. 2022

Front. Energy Res.

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show abstract

“…[32]. In [33], "fuzzy similarity", which is a variant of Minkowski Distance, was used for fault diagnosis in dual buck inverter. But in summary, the researches on using these distances to measure the symmetry for fault diagnosis are few, which may be a feasible research point.…”

mentioning

confidence: 99%

A Review of Symmetry-Based Open-Circuit Fault Diagnostic Methods for Power Converters

Zhou,

Zhao,

2024

Symmetry

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Power converters can convert the electrical energy output by power source into specific forms required by target device. They are widely used in various fields such as electrification, transportation, and power systems, and are the core components of the systems. Power converters are composed of power semiconductor devices (such as IGBTs), which are prone to failure due to abnormal conditions and aging degradation, leading to power converter faults. Therefore, over the past twenty years, extensive fault diagnosis methods for power converters have been studied and proposed. Among them, symmetry-based methods have the characteristics of rapid diagnosis speed and strong robustness, but so far there’s no systemic summary of such methods. Therefore, this paper reviews the relevant research on fault diagnosis of power converters based on symmetry in recent years, analyzes the mathematical principles of these methods, and compares their diagnostic performance. In addition, two factors that may have an influence on the symmetry are pointed out. This paper provides references and suggestions for the future development and research of power converter fault diagnosis.

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SMOTE-Based Fault Diagnosis Method for Unbalanced Samples

Cheng

et al. 2022

2022 IEEE 11th Data Driven Control and Learning Systems Conference (DDCLS)

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Converter Fault Diagnosis Method Based on Principal Component Analysis Combined with Improved Similarity Classifier

Cited by 3 publications

References 6 publications

Research on the output coordinated strategy of a DPFC considering device fault probability

Research on the output coordinated strategy of a DPFC considering device fault probability

A Review of Symmetry-Based Open-Circuit Fault Diagnostic Methods for Power Converters

SMOTE-Based Fault Diagnosis Method for Unbalanced Samples

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