Principles of fault tolerance

White, Robert V.; Miles, F.M.

doi:10.1109/apec.1996.500416

Cited by 50 publications

(20 citation statements)

References 5 publications

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“…We define the robustness of a circuit as the fraction of its neighbours that are neutral neighbours. This quantity is an analogue of mutational robustness in biological systems [1,15], as well as of fault-tolerance in engineering [46,47]. Figure 3a shows that the robustness of circuits computing different functions is generally high.…”

Section: Larger Circuits Are More Robust To Configuration Changes Andmentioning

confidence: 99%

The evolvability of programmable hardware

Raman

Wagner

2010

J. R. Soc. Interface.

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In biological systems, individual phenotypes are typically adopted by multiple genotypes. Examples include protein structure phenotypes, where each structure can be adopted by a myriad individual amino acid sequence genotypes. These genotypes form vast connected 'neutral networks' in genotype space. The size of such neutral networks endows biological systems not only with robustness to genetic change, but also with the ability to evolve a vast number of novel phenotypes that occur near any one neutral network. Whether technological systems can be designed to have similar properties is poorly understood. Here we ask this question for a class of programmable electronic circuits that compute digital logic functions. The functional flexibility of such circuits is important in many applications, including applications of evolutionary principles to circuit design. The functions they compute are at the heart of all digital computation. We explore a vast space of 10 45 logic circuits ('genotypes') and 10 19 logic functions ('phenotypes'). We demonstrate that circuits that compute the same logic function are connected in large neutral networks that span circuit space. Their robustness or fault-tolerance varies very widely. The vicinity of each neutral network contains circuits with a broad range of novel functions. Two circuits computing different functions can usually be converted into one another via few changes in their architecture. These observations show that properties important for the evolvability of biological systems exist in a commercially important class of electronic circuitry. They also point to generic ways to generate fault-tolerant, adaptable and evolvable electronic circuitry.

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Section: Larger Circuits Are More Robust To Configuration Changes Andmentioning

confidence: 99%

The evolvability of programmable hardware

Raman

Wagner

2010

J. R. Soc. Interface.

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“…It should be noted that beyond incorporating redundancy in the design, appropriate fault detection, isolation and reconfiguration mechanisms are equally important to achieve fault-tolerant operation. The interested reader is referred to [13] for a discussion of the principles related to fault tolerance.…”

Section: Fault Tolerancementioning

confidence: 99%

Design considerations for a PEBB-based Marx-topology ILC klystron modulator

Macken

Beukers

Burkhart

et al. 2009

2009 IEEE Pulsed Power Conference

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The concept of Power Electronic Building Blocks (PEBBs) has its origin in the U.S. Navy during the last decade of the past century. As compared to a more conventional or classical design approach, a PEBB-oriented design approach combines various potential advantages such as increased modularity, high availability and simplified serviceability. This relatively new design paradigm for power conversion has progressively matured since then and its underlying philosophy has been clearly and successfully demonstrated in a number of real-world applications. Therefore, this approach has been adopted here to design a Marx-topology modulator for an International Linear Collider (ILC) environment where easy serviceability and high availability are crucial. This paper describes various aspects relating to the design of a 32-cell Marx-topology ILC klystron modulator. The concept of nested droop correction is introduced and illustrated. Several design considerations including cosmic ray withstand, power cycling capability, fault tolerance, etc., are discussed. Details of the design of a Marx cell PEBB are included.

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“…However, conventional PM machines are claimed to have inferior fault tolerance compared with SR machines (Argile, 2008;Mecrow et al, 1996;White, 1996). Conventional PM generators are intolerant to elevated temperatures.…”

Section: Permanent Generatormentioning

confidence: 99%

“…These machines are designed with a high number of phases, such that the machine can continue to deliver a satisfactory level of torque/power after a fault in one or more phases. Furthermore, each phase has minimal electrical, magnetic, and thermal impact upon the others (Argile, 2008;Jack et al, 1996;Jones & Drager, 1997;Mecrow et al, 1996;Mitcham & Cullenm, 2002, 2005White, 1996). This is realised by:…”

Section: Permanent Generatormentioning

confidence: 99%

Power Generation and Distribution System for a More Electric Aircraft - A Review

Abdel‐Hafez¹

2012

Recent Advances in Aircraft Technology

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Principles of fault tolerance

Cited by 50 publications

References 5 publications

The evolvability of programmable hardware

The evolvability of programmable hardware

Design considerations for a PEBB-based Marx-topology ILC klystron modulator

Power Generation and Distribution System for a More Electric Aircraft - A Review

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