An Open-Circuit Fault Diagnosis Algorithm Based on Signal Normalization Preprocessing for Motor Drive Inverter

Sun, Xianrui; Song, Chonghui; Zhang, Yingwei; Sha, Xin; Diao, Naizhe

doi:10.1109/tim.2023.3268461

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…Taking a twolevel three-phase inverter with an induction motor as an example, this is the most basic topology structure, but there are four categories and 21 types of single-transistor and double-transistor faults. In addition, the motor has a huge difference in current during the processes of starting, braking, load adjustment, acceleration, and deceleration, which can easily be confused with fault situations [18]. The power converters usually work in a complex electric-magnetic-mechanical-thermal coupling field, with numerous influencing factors.…”

Section: Introductionmentioning

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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Section: Introductionmentioning

confidence: 99%

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

Zhou,

Zhao,

2024

Symmetry

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“…For instance, Xu et al [9] developed a method focused on analyzing the filtered output line voltage of a three-phase inverter. Similarly, Zhu et al [10] and Sun et al [11] both proposed strategies focused on extracting specific characteristic parameters from different aspects of the inverter system. Additionally, several studies have combined various techniques for more comprehensive fault diagnosis.…”

Section: Introductionmentioning

confidence: 99%

Three-Phase Inverter Fault Diagnosis Based on an Improved Deep Residual Network

Meng

et al. 2023

Electronics

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This study addresses the challenges of limited fault samples, noise interference, and low accuracy in existing fault diagnosis methods for three-phase inverters under real acquisition conditions. To increase the number of samples, Wavelet Packet Decomposition (WPD) denoising and a Conditional Variational Auto-Encoder (CVAE) are used for sample enhancement based on the existing faulty samples. The resulting dataset is then normalized, pre-processed, and used to train an improved deep residual network (SE-ResNet18) fault diagnosis model with a channel attention mechanism. Results show that the augmented fault samples improve the diagnosis accuracy compared with the original samples. Furthermore, the SE-ResNet18 model achieves higher fault diagnosis accuracy with fewer iterations and faster convergence, indicating its effectiveness in accurately diagnosing inverter open-circuit faults across various sample situations.

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Current Components Extraction Based Open Switch Fault Detection for Induction Motor Drive System

Gardouh,

Ghanem,

Abulanwar

et al. 2023

2023 24th International Middle East Power System Conference (MEPCON)

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An Open-Circuit Fault Diagnosis Algorithm Based on Signal Normalization Preprocessing for Motor Drive Inverter

Cited by 5 publications

References 28 publications

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

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

Three-Phase Inverter Fault Diagnosis Based on an Improved Deep Residual Network

Current Components Extraction Based Open Switch Fault Detection for Induction Motor Drive System

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