A survey on the reliability of power electronics in electro-mobility applications

Gadalla, Brwene; Schaltz, Erik; Blaabjerg, Frede

doi:10.1109/optim.2015.7427015

Cited by 15 publications

(9 citation statements)

References 20 publications

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“…Power electronic components play an important role in reliability of the whole system, so it is necessary to estimate their failure rates [21,22]. An extensive database of various types of parts is provided in the RDF-2000 [23], which is widely accepted and frequently used to determine the reliability of electronic equipment.…”

Section: Component Failure Ratementioning

confidence: 99%

Reliability evaluation of modular multilevel converter based on Markov model

Zhang

Ting

et al. 2019

J. Mod. Power Syst. Clean Energy

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The modular multilevel converter (MMC) is now the most attractive topology for medium and high voltage power conversion applications with several advantages over the traditional voltage source converter (VSC). However, due to a large number of sub-modules (SMs) in the MMC, system reliability is a big challenge in its practical application, where each SM may be considered as a potential point of failure. In this paper, a reliability evaluation based on the Markov model is proposed for the MMC. The failure rates of the power electronic devices and SMs are firstly analyzed. Then, the Markov model and the state transition equation of the system are built in detail. A general reliability evaluation function is established, in which the mean time to failure and reliability evaluation of the MMC with redundant SMs are also discussed. Finally, a practical direct current (DC) distribution example for reliability evaluation is analyzed, and the results verify that the reliability evaluation based on the Markov model could provide a useful reference for project design.

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Section: Component Failure Ratementioning

confidence: 99%

Reliability evaluation of modular multilevel converter based on Markov model

Zhang

Ting

et al. 2019

J. Mod. Power Syst. Clean Energy

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“…The nonuniform and nonparallel stress leads to a crowding of force lines at the crack tip, but the lines of force again will become uniform and parallel at some distance away from the crack tip; meanwhile, a plastic zone is also produced in the crack tip [23]. The higher density of the lines of force at the crack tip produces a stress rise, as shown by (1). Therefore, the stress at the crack tip Fig.…”

Section: Small T J Power Cycling Testsmentioning

confidence: 99%

“…1. Failure distribution and ranking [1] of small T j under different age stages and proves that the traditional lifetime models are not accurate. A lifetime model is proposed in Section 4.…”

Section: Introductionmentioning

confidence: 98%

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Study on lifetime prediction considering fatigue accumulative effect for die‐attach solder layer in an IGBT module

Lai

Chen

et al. 2018

IEEJ Transactions Elec Engng

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An accurate lifetime model is needed in power electronic systems as a cost-effective means of improving reliability and performance assessment, which have long been highly desired to reduce the maintenance cost and to make the product more competitive in the market. Die-attach solder layer fatigue has been identified as one of the root causes of failure of power electronic modules. This paper presents "physics-of-failure lifetime model", which takes fatigue accumulative effect into consideration and can quantify the effect of long-term small-temperature cycling to device fatigue life cycle to estimate the lifetime of the power module. First, small T j power cycling tests were designed to obtain the effects of T j on aged and un-aged modules. They indicated that the traditional lifetime models were not accurate in predicting the lifetime of power modules. Therefore, a new time-domain crack propagation model based on the cumulative damage in the die-attach solder layer is proposed, which includes time-dependent material properties and temperature profiles. Moreover, power cycling experiments and simulations are conducted to demonstrate the method by comparing the number of cycles to failure.

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“…Smart grids must cope with the impact of new loads and, in particular, with Electric Vehicles (EV) [1,2]. Electric vehicles will play a fundamental role in a future V2G (Vehicle-to-Grid) scenario as it may act as a consumer, when being charged, and as a producer, when it delivers energy to the electrical network [3,4].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity analysis of a bidirectional wireless charger for EV

Cabrera

Aguado

Longo

et al. 2016

2016 IEEE International Conference on Renewable Energy Research and Applications (ICRERA)

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Abstract-Bidirectional chargers are required to fully integrate Electric Vehicle (EV) into the smart grids. Additionally, wireless chargers ease the charge/discharge process of the EV batteries so that they are becoming more popular to fulfill a V2G scenario. When considering the load of wireless chargers, it is a requirement to know the real output power that these systems offer. The designed output power may differ from the real one as components suffer from tolerance. This paper defines six sensitivity factors to model the severity of the effects of tolerance into the output power. To do so, an electric circuit analysis is used and a mathematical formulation is derived. The six sensitivity factors are computed for a laboratory prototype.

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A survey on the reliability of power electronics in electro-mobility applications

Cited by 15 publications

References 20 publications

Reliability evaluation of modular multilevel converter based on Markov model

Reliability evaluation of modular multilevel converter based on Markov model

Study on lifetime prediction considering fatigue accumulative effect for die‐attach solder layer in an IGBT module

Sensitivity analysis of a bidirectional wireless charger for EV

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