A realistic reliability and availability prediction methodology for power supply systems

Abstract. With the increase in processing power of computers, proliferation of specialized software and hardware, and the availability of greater communications bandwidth, it is possible to deploy more demanding modern Distributed Interactive Multimedia Applications such as World Opera. The World Opera application realizes the vision of a distributed real-time opera performance in which artists who are distributed around the globe are interacting with each other as though they were co-located. The application is driven by the artistic consortium that encompasses several major opera houses worldwide.In this paper, we build a high-level reliability model to predict the system reliability of the deployed architecture for supporting World Opera. Furthermore, we conduct a sensitivity analysis to understand the reliability requirements that individual components need to meet in order to provide desired system reliability.

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“…A variety of applications have used RBDs for modeling system reliability, e.g. in [10], [13], [4], and [8].…”

Section: Reliability Model For World Operamentioning

confidence: 99%

Reliability Modeling and Analysis of Modern Distributed Interactive Multimedia Applications: A Case Study of a Distributed Opera Performance

Veeraragavan

Vitenberg

Meling

2012

Distributed Applications and Interoperable Systems

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“…As far as reliability is concerned, it has been researched as a useful tool for risk analysis, production availability studies and design of systems [1][2][3].In general case, many industrial systems consisted of massive units or subsystems, such as airplane, fleet, power supply systems and so on, were considered as complicated systems [4][5][6].Availability has been considered as an important measure of performance for these systems which are generally considered as repairable ones [7][8][9][10][11]. These systems undergo during their lifetimes multiple unscheduled failure and repair cycles.…”

Section: Introductionmentioning

confidence: 99%

Reliability Model for Warm Standby System under Consideration of Replace Time

Yang¹

2016

IJHIT

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There are two effective ways to maintain the system to perform a high or required level of reliability and availability: one is spare units for key units; the other is several maintainers for the system. To solve reliability indexes of complex mechanical system under these assumptions, a system model was established, which consists of two dissimilar subsystems in series and each subsystem is warm standby system, which consists two same units. We divided maintain time into replace time and repair time. In this paper, we arrange two maintainers for the system, and take 'the system in normal states' as maintenance strategy. Taking high efficiency of cooperative maintainers into account, the formula of system availability, system reliability, rate of occurrence of failure (ROCOF) and mean time to first failure (MTTFF) can be derived by operating the state transition probability matrix. This research provides evidence for further studies of complex mechanical system reliability.

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Second Life Battery Energy Storage Systems: Converter Topology and Redundancy Selection

Mukherjee¹,

Strickland²

2014

7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)

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Battery energy storage systems have traditionally been manufactured using new batteries with a good reliability. The high cost of such a system has led to investigations of using second life transportation batteries to provide an alternative energy storage capability. However, the reliability and performance of these batteries is unclear and multi-modular power electronics with redundancy have been suggested as a means of helping with this issue. This paper reviews work already undertaken on battery failure rate to suggest suitable figures for use in reliability calculations. The paper then uses reliability analysis to investigate six different multi-modular topologies and suggests how the number of series battery strings and power electronic module redundancy should be determined for the lowest hardware cost using a numerical example. The results reveal that the cascaded dc-side modular with single inverter is the lowest cost solution among the topologies.

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A realistic reliability and availability prediction methodology for power supply systems

Cited by 3 publications

References 0 publications

Reliability Modeling and Analysis of Modern Distributed Interactive Multimedia Applications: A Case Study of a Distributed Opera Performance

Reliability Modeling and Analysis of Modern Distributed Interactive Multimedia Applications: A Case Study of a Distributed Opera Performance

Reliability Model for Warm Standby System under Consideration of Replace Time

Second Life Battery Energy Storage Systems: Converter Topology and Redundancy Selection

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