An Industry-Based Survey of Reliability in Power Electronic Converters

Yang, Shuying; Bryant, A.T.; Mawby, P.A.; Xiang, Dan; Li, Ran; Tavner, Peter

doi:10.1109/tia.2011.2124436

Cited by 1,504 publications

(184 citation statements)

References 13 publications

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“…With given voltage gains, resonant parameters and driving frequency, the phase shift angle ϕ13, which can provide certain P1,pu, will be derived by solving Equation (16). Then substitute ϕ13 into (10), the corresponding cutoff current is expressed as iT1,pu(-ϕ13/ωs) = i′T1,pu(-ϕ13/ωs)/n13.…”

Section: Resonant Components Optimizationmentioning

confidence: 99%

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A High-Efficiency Isolated LCLC Multi-Resonant Three-Port Bidirectional DC-DC Converter

Wang

et al. 2017

Energies

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Abstract:In this paper, an isolated multi-resonant three-port bidirectional direct current-direct current (DC-DC) converter is proposed, which is composed of three full bridges, two inductor-capacitorinductor-capacitor (LCLC) multi-resonant tanks and a three-winding transformer. The phase shift control method is employed to manage the power transmission among three ports. Relying on the appropriate parameter selection, both of the fundamental and the third order power can be delivered through the multi-element LCLC resonant tanks, and consequently, it contributes to restrained circulating energy and the desirable promoted efficiency. Besides, by adjusting the driving frequency under different load conditions, zero-voltage-switching (ZVS) characteristics of all the switches of three ports are guaranteed. Therefore, lower switching loss and higher efficiency are achieved in full load range. In order to verify the feasibility of the proposed topology, a 1.5 kW prototype is established, of which the maximum efficiencies under forward and reverse operating conditions are 96.7% and 96.9% respectively. In addition, both of the bidirectional efficiencies maintain higher than 95.5% when the power level is above 0.5 kW.

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Section: Resonant Components Optimizationmentioning

confidence: 99%

“…However, neither non-isolated or partly-isolated TP-BDCs are suitable for applications where the three ports must be completely isolated. Therefore, it is necessary to consider the isolated-type TP-BDC [15,16]. isolated or partly-isolated TP-BDCs are suitable for applications where the three ports must be completely isolated.…”

Section: Introductionmentioning

confidence: 99%

A High-Efficiency Isolated LCLC Multi-Resonant Three-Port Bidirectional DC-DC Converter

Wang

et al. 2017

Energies

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“…Devices under test are examined for determining the number of cycles to failure [35]. Reliability of the PECs mostly depends on the associated switching elements (IGBTs), since they are the most easily damaged components [36].…”

Section: Lifetime Comparison Analysismentioning

confidence: 99%

Effects of Power Tracking Algorithms on Lifetime of Power Electronic Devices Used in Solar Systems

2016

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Abstract:In photovoltaic solar energy systems, power management algorithms (PMAs), usually called maximum power point tracking (MPPT) algorithms, are widely used for extracting maximum available power at every point in time. However, tracking the maximum power has negative effects on the availability of solar energy systems. This is due, mainly, to the created disturbances and thermal stresses on the associated power electronic converters (PECs). This work investigates the effects of PMA on the lifetime consumption, thermal stresses and failures on DC-DC converters used in solar systems. Firstly theoretical analysis and modelling of photovoltaic solar systems including converter's electro thermal characteristics were developed. Subsequently, experiments on photovoltaic solar systems were carried out using two different PMAs, namely, perturb and observe (P&O) and incremental conductance (IC). Real-time data was collected, under different operating conditions, including thermal behavior using thermal imaging camera and dSPACE. Converters' thermal cycling was found to be approximately 3 • C higher with the IC algorithm. The steady state temperature was 52.7 • C, for the IC while it was 42.6 • C for P&O. Although IC algorithm offers more accurate power management tool, it causes more severe thermal stresses which, in this study, has led to approximately 1.4 times greater life consumption compared to P&O.

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“…The reason for the widespread application of IGBTs lies in IGBTs' excellent performance in the aspects of switching frequency, energy efficiency, power density and cost effectiveness [9]. Simultaneously, ever more formidable working conditions and stricter operating conditions require higher quality.…”

Section: Introductionmentioning

confidence: 99%

A High-Precision Adaptive Thermal Network Model for Monitoring of Temperature Variations in Insulated Gate Bipolar Transistor (IGBT) Modules

et al. 2018

Energies

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This paper proposes a novel method for optimizing the Cauer-type thermal network model considering both the temperature influence on the extraction of parameters and the errors caused by the physical structure. In terms of prediction of the transient junction temperature and the steady-state junction temperature, the conventional Cauer-type parameters are modified, and the general method for estimating junction temperature is studied by using the adaptive thermal network model. The results show that junction temperature estimated by our adaptive Cauer-type thermal network model is more accurate than that of the conventional model.

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An Industry-Based Survey of Reliability in Power Electronic Converters

Cited by 1,504 publications

References 13 publications

A High-Efficiency Isolated LCLC Multi-Resonant Three-Port Bidirectional DC-DC Converter

A High-Efficiency Isolated LCLC Multi-Resonant Three-Port Bidirectional DC-DC Converter

Effects of Power Tracking Algorithms on Lifetime of Power Electronic Devices Used in Solar Systems

A High-Precision Adaptive Thermal Network Model for Monitoring of Temperature Variations in Insulated Gate Bipolar Transistor (IGBT) Modules

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