Power supply system reliability taking battery failure into account

Koizumi, Y.; Yotsumoto, K.

doi:10.1109/intlec.1995.498929

Cited by 5 publications

(2 citation statements)

References 1 publication

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“…They Weibull distribution fits such distributions as strength against electro-mechanical destruction, strength of break-down point, and reliability of electronic equipment. They show a random dysfunction like common electronic components [4]. This simplifies statistical analysis.…”

Section: High Voltage Storage Systemmentioning

confidence: 96%

“…However, the series connection of batteries up to several kV leads to nontrivial charging and discharging characteristics of such a storage system. This requires investigations on high voltage system topologies and their operating behavior to get knowledge about the battery reliability itself [4]. Additionally security issues become important.…”

Section: Introductionmentioning

confidence: 99%

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Design and construction of a test bench to characterize efficiency and reliability of high voltage battery energy storage systems

Blank

Stephan²,

Roggendorf

et al. 2010

Intelec 2010

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Stationary battery energy storage systems are widely used for uninterruptible power supply systems. Furthermore, they are able to provide grid services. This yields in rising installed power and capacity. One possibility uses high voltage batteries. This results in an improvement of the overall system efficiency. High voltage batteries may be advantageous for future medium voltage DC-grids as well. In all cases, high availability and reliability is indispensable. Investigations on the operating behavior of such systems are needed. For this purpose, a test bench for high voltage storage systems was built to analyze these processes for different battery technologies. A special safety infrastructure for the test bench was developed due to the high voltage and the storable energy of approximately 120 kWh. This paper presents the layout of the test bench for analyzing high voltage batteries with about 4,300 volts including all components, the safety requirements with the resultant safety circuit and the aim of the investigations to be performed with the test bench.

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Section: High Voltage Storage Systemmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Design and construction of a test bench to characterize efficiency and reliability of high voltage battery energy storage systems

Blank

Stephan²,

Roggendorf

et al. 2010

Intelec 2010

View full text Add to dashboard Cite

show abstract

Batteries, Fuel Cells, and Solar Cells

Barnes¹

2004

Robust Electronic Design Reference Book

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Charge equalizing and lifetime increasing with a new charging method for VRLA batteries

Lohner

Karden²,

Doncker³

Proceedings of Power and Energy Systems in Converging Markets

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A new charging method for valve-regulated lead-acid (VRLA) batteries is presented which limits the maximum of all block voltages in a battery string. A commercially available VRLA battery was equipped with cell-pressure and cell-voltage sensors. The new charging method was applied to the battery in comparison to conventional IU-and IUIa-charging methods. Voltage and pressure measurements during these experiments show clearly that the conventional charging methods lead to excessive overcharge of single cells correlated with irreversible water losses. These problems are efficiently avoided by the new charging method. Capacity data from cycling operation prove as well that the new charging method guarantees charge-equalizing between the inhomogeneous cells while avoiding additional hardware.

show abstract

Power supply system reliability taking battery failure into account

Cited by 5 publications

References 1 publication

Design and construction of a test bench to characterize efficiency and reliability of high voltage battery energy storage systems

Design and construction of a test bench to characterize efficiency and reliability of high voltage battery energy storage systems

Batteries, Fuel Cells, and Solar Cells

Charge equalizing and lifetime increasing with a new charging method for VRLA batteries

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