Open-Circuit Fault Analysis and Modeling for Power Converter Based on Single Arm Model

This paper aims to enhance the reliability of power electronic converters fed permanent magnet synchronous machine for electrical powertrain applications. Many faults like open circuit may affect the power converter and quickly lead to a decline in supplied power quality and all the power train components behavior. In this framework, this paper proposes an open circuit fault detection scheme for inverters. First, the dynamic models of the powertrain subsystems were developed. In fact, all the mathematics models of the motor, inverter, power converter, battery and charger are presented. Then, a detection scheme of open-circuit fault in inverter/motor. The control schemes were elaborated based on current analysis method. The diagnosis strategy under discontinuous switch-ing dynamics of the DC/AC inverter is proposed.

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“…A simple way to adapt the inverter model for open-circuit fault is found in [18]. The reasoning presented here is similar.…”

Section: Open Circuit Faults 31 Faulty Inverter Modelmentioning

confidence: 89%

Open-circuit fault detection of inverter fed PMSM for electrical powertrain applications

Haidar

Douiri

Bartoli

2023

IJPEDS

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“…In such a traction converter, every part plays a key role, and the motor-side inverter is in charge of the control induction machines. The whole traction system relies on the reliability of the rectifier [5,6]. Because of the destructiveness and high rate of rectifier failure, it has been paid much attention recently.…”

Section: Introductionmentioning

confidence: 99%

Voltage and Current Sensor Fault Diagnosis Method for Traction Rectifier in High-Speed Trains

Yu,

Song,

Tao

et al. 2024

Electronics

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The traction rectifier plays a key role in high-speed trains. Unexpected failure often occurs in the sensors of the rectifier, which may affect the control performance of the electric traction rectifier and even cause serious deterioration to high-speed trains. A sensor fault diagnosis method is presented in this paper, considering three kinds of common fault types. It can not only locate the sensor fault, but also identify fault types. Based on the influences of the sensor faults, the fault diagnosis thresholds can be calculated quantitatively. No additional hardware is required. First, the model of the rectifier is established, and the estimator is built. The current residuals with different faults can be obtained. Next, residuals are analyzed and features are acquired. Then, diagnosis functions are constructed, which are used for fault location and fault type identification. Finally, the feasibility and effectiveness of the method have been confirmed by the experimental results.

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“…With the rapid development of high-speed trains, their safety has received increasing attention [ 1 , 2 , 3 ]. The traction converter is one of the most important components and also a main fault source of high-speed trains [ 4 , 5 , 6 ]. Because of the high requirements on train safety and reliability, the fault diagnosis methods of traction converter have been a research hotspot in recent years [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Voltage and Current Sensor Fault Diagnosis Method for Traction Converter with Two Stator Current Sensors

Tao

Peng

Yang

et al. 2022

Sensors

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The traction converter is one of the key components of high-speed trains. Current and voltage sensor faults in the converter may lead to feedback values deviation and system degradation, which will bring security risks to the train. This paper proposes a real-time fault diagnosis method for grid current, DC-link voltage and stator current sensor faults in the traction converter with two stator current sensors, which can not only detect and locate faults but also identify the types of faults. Moreover, the faults considered in this paper are incipient. First, the DC-link model is established, and the fault is detected by the residual of the DC-link voltage. Next, the differential of DC-link voltage residual is calculated, which is applied to fault location. Then, according to the change of the differential values, different fault types are determined. Finally, the hardware-in-the-loop (HIL) platform is built and the effectiveness and accuracy of the proposed method are verified by the HIL tests.

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Open-Circuit Fault Analysis and Modeling for Power Converter Based on Single Arm Model

Cited by 11 publications

References 29 publications

Open-circuit fault detection of inverter fed PMSM for electrical powertrain applications

Open-circuit fault detection of inverter fed PMSM for electrical powertrain applications

Voltage and Current Sensor Fault Diagnosis Method for Traction Rectifier in High-Speed Trains

Voltage and Current Sensor Fault Diagnosis Method for Traction Converter with Two Stator Current Sensors

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