Fault impacts on solar power unit reliability

Bazzi, Ali M.; Kim, Katherine A.; Johnson, Brian; Krein, P.T.; Domínguez-García, Alejandro D.

doi:10.1109/apec.2011.5744749

Cited by 33 publications

(14 citation statements)

References 22 publications

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“…The calculation of PV cell reliability can be based on the same approach as that for electronic component reliability (photodiode, MIL‐HBk 217F) with the formula (Bazzi et al used π s = π c = 1):

λ_{normalp, PV} {= λ}_{normalp, normalb} π_{T} . π_{S} . π_{C} . π_{Q} . π_{E} h^{‐ 1}

where λ p , b = 0.04.10 −6 h −1 is a base failure rate; other parameters are given in Table . The environment factor is chosen for hard conditions (GM) to take into account dust and other natural perturbations.…”

Section: Pv‐wsn Reliability Modelingmentioning

confidence: 99%

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Photovoltaics in the assessment of wireless sensor network reliability with changing environmental conditions

Kassan

Châtelet

2017

Quality & Reliability Eng

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This paper presents a reliability assessment of a wireless sensor network (WSN) equipped with mini photovoltaic cells (PV-WSN) under natural environmental conditions while accounting for different types of system failures. In particular, our assessment considers the hardware specifications of the sensors, photovoltaic (PV) specifications, the use of rechargeable batteries, communication protocols, and various elements required for efficient detection of environmental conditions. We accomplished this by developing a simulator that generated data for 2 broad WSN conditions: (1) WSN without PV and (2) WSN with PV. The dynamic source routing protocol was employed for these simulations, and the following variables were assessed for both conditions: WSN reliability, the impact of energy consumption on the network, and the types of failures that lead to sensor unavailability. The following assumptions were made to run the simulation: the distribution of WSN nodes is random, with 1 sink node per rectangular cluster, the sensor nodes are structurally and functionally identical, environmental interference and suboptimal orientation impair PV cell recharge capacity randomly, and no communication loss occurs. Our reliability assessment assumed extreme environmental conditions and further made assessments of component reliability that included the following parameters: sensor and PV cell hardware specifications, the rechargeable nature of PV cell batteries for different sensor activity states, the availability of sunlight for powering PV cells, and the energy efficiency of PV cells. We found that network lifetime was prolonged for the PV-WSN condition over the WSN without PV condition, introducing a role for PV cells as potential energy sources for WSNs.

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λ_{normalp, PV} {= λ}_{normalp, normalb} π_{T} . π_{S} . π_{C} . π_{Q} . π_{E} h^{‐ 1}

Section: Pv‐wsn Reliability Modelingmentioning

confidence: 99%

“…The calculation of PV cell reliability can be based on the same approach as that for electronic component reliability (photodiode, MIL-HBk 217F 36 ) with the formula (Bazzi et al 38 used π s = π c = 1):…”

Section: Pv Cell Reliabilitymentioning

confidence: 99%

Photovoltaics in the assessment of wireless sensor network reliability with changing environmental conditions

Kassan

Châtelet

2017

Quality & Reliability Eng

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“…PV sources in particular have achieved much favor as an alternative power source due to environmental concerns [1]. With the development of new solar technology that is more efficient and reliable, PV systems are being used in a wide range of applications [2]. One improvement of solar technology involves the use of Gallium Arsenide (GaAs) in photovoltaic devices.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of a boost inverter with a silicon carbide device for commercial applications

Smith

McCann

Makableh

et al. 2014

2014 IEEE Industry Application Society Annual Meeting

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Silicon Carbide (SiC) devices provides for better performance in photovoltaic (PV) and distributed energy resource (DER) inverters. Switches based on SiC can tolerate higher temperatures, accommodates high voltages, and can operate at higher frequencies. The boost inverter presented is a single stage inverter topology that lowers or attenuates the input dc voltage creating an ac output voltage. Grid reliability is improved through the integration of silicon carbide devices in technologies such as the boost inverter which provides for improved efficiency and lower cost for grid connection. A novel Gallium Arsenide (GaAs) photovoltaic device is also discussed and chosen as the dc source to the boost inverter due to its high absorptivity and insensitivity to heat thus allowing for increased energy conversion. A low power prototype is designed to show that the proposed system serves as a feasible renewable energy system for commercial and industrial applications.

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“…Even if the typical design target of lifetime for PVsystems is around 20 years, there is a discrepancy between the lifetime of the PV-inverter (5-10 years) and the PV-panel (20-25 years). The system reliability can be improved by replacing devices before their failure [5,6]. Great variations of the PVinverters lifetime are encountered due to the Mission Profile (MP) and Gate-Driver (GD) parameters variations.…”

Section: Introductionmentioning

confidence: 99%

The impact of gate-driver parameters variation and device degradation in the PV-inverter lifetime

Sintamarean

Wang

Blaabjerg

et al. 2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

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Abstract-This paper introduces a reliability-oriented design tool for a new generation of grid connected PV-inverters. The proposed design tool consists of a real field Mission Profile (MP) model (for one year operation in USA-Arizona), a PV-panel model, a grid connected PV-inverter model, an Electro-Thermal model and the lifetime model of the power semiconductor devices. A simulation model able to consider a one year real field operation conditions (solar irradiance and ambient temperature) is developed. Thus, one year estimation of the converter devices thermal loading distribution is achieved and is further used as an input to a lifetime model. The proposed reliability oriented design tool is used to study the impact of MP-variation, Gate-Driver (GD) parameters variation and device degradation in the PVinverter lifetime. The obtained results indicate that in order to improve the accuracy of the lifetime estimation it is crucial to consider also the device degradation feedback. Moreover the MP of the field where the PV-inverter is operating and the GDparameters selection has an important impact in the converter reliability and it should be considered from the design stage to better optimize the converter design margin.

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Fault impacts on solar power unit reliability

Cited by 33 publications

References 22 publications

Photovoltaics in the assessment of wireless sensor network reliability with changing environmental conditions

Photovoltaics in the assessment of wireless sensor network reliability with changing environmental conditions

Performance analysis of a boost inverter with a silicon carbide device for commercial applications

The impact of gate-driver parameters variation and device degradation in the PV-inverter lifetime

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