Results 31 to 40 of about 2,255 (184)
Lifetime Evaluation of Traction Converter IGBT Based on Operating Conditions and Component Aging
Kongzhi Yu Xinxi Jishu, 2022 IGBT's lifetime is greatly influenced by the operation conditions of train and the current aging degree of IGBT. However, the influences of train operation conditions and current life of an IGBT on the life assessment are normally not considered.
LI Dong +5 more
doaj +1 more source
Hybrid Inverters With Dual Switching Frequencies for Switched Reluctance Motors
Energy Science &Engineering, EarlyView.A hybrid dual‐switching‐frequency inverter for SRMs is proposed, combining SiC and IGBT devices based on rotor inductance. The method enables accurate current tracking with simple hysteresis control, significantly reducing torque ripple, vibration, and acoustic noise while cutting inverter cost compared to full‐SiC solutions.
Fares S. El‐Faouri +4 more
wiley +1 more source
Parametric Modeling and Analysis of High Power IGBT Device
Kongzhi Yu Xinxi Jishu, 2023 In the high-power IGBT module commutation circuit, under the combined impact of stray inductance and di/dt, the IGBT is under significant voltage and current stresses during the processes of switching on and off, which increases system losses and ...
LIU Fei, MAO Kaixiang
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High Voltage, EarlyView.ABSTRACT The alternate arm converter (AAC) is one of the most efficient multilevel topologies based on voltage source converters (VSCs), which has recently gained attention in various applications, particularly in high voltage direct current (HVDC) systems.
Ehsan Akbari, Milad Samady Shadlu
wiley +1 more source
Vibration control of resonant vibratory feeders with electromagnetic excitation [PDF]
FME Transactions, 2014 The vibratory feeders with electromagnetic excitation called electromagnetic vibratory feeders (EMVF) are commonly used for performing gravimetric flow of granular and particulate materials in processing industry.
Despotović Željko V. +3 more
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Probabilistic approaches and reliability design of power modules [PDF]
International Journal for Simulation and Multidisciplinary Design Optimization, 2008 The weak point for the standard power IGBT modules in terms of reliability is thermal fatigue in solder joints due to the thermal stress induced by constitutive materials with different coefficients of thermal expansion (CTE). So far, many researches are
Micol A. +4 more
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Study on the IGBT Overcurrent Failure of VSC-HVDC Converter Valve
Zhongguo dianli, 2021 IGBT overcurrent failure, which is one of the important factors harming VSC-HVDC safe operation, can easily lead to module explosion, water cooling system leakage and even the converter valve shutdown.
Jingbo FENG +4 more
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High Voltage, EarlyView.ABSTRACT To effectively suppress transient overvoltages in HVDC systems, the design and experimental validation of a multi‐module series controllable arrester are presented. The voltage‐limiting performance, series voltage equalisation capability, and robustness under fault conditions in high‐voltage scenarios require further research.
Tai Yang +4 more
wiley +1 more source
Screening study on high power IGBT [PDF]
International Journal for Simulation and Multidisciplinary Design Optimization, 2010 This paper presents the modelling of some high power IGBT (Insulated Gate Bipolar Transistor) performances. These IGBT are essential components of the power converter in railway applications.
Karama M., Rabier F.
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Application Status and Development Trends of DC Ice‐Melting Devices in China's Power Grid
IET Smart Energy Systems, EarlyView.This paper summarises the development history and engineering application status of DC ice‐melting devices (DCIMD) in China, analyses the principles, advantages, disadvantages and adaptability of mainstream topologies and discusses the key problems and corresponding improvement directions.
Ming Lei +6 more
wiley +1 more source