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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Reliability modeling"”.
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Generation reliability modeling and analysis of wind power plants
The reliability impact of wind generation is evaluated using a set of reliability modeling and analysis tools implemented with MATLAB. As expected, the addition of wind generation increases the reliability of a power system. However, the extent to which the reliability is increase varies with the …
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TRANSMISSION LINE RELIABILITY MODELING INCORPORATING EXTREME ADVERSE WEATHER CONSIDERATIONS
This thesis illustrates the development of a reliability model for two redundant transmission lines, which incorporates normal and bad weather conditions. The two indices of system average failure rate and system average outage duration are evaluated for this model using a Markov approach, an …
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Novel models and algorithms for systems reliability modeling and optimization
… product development processes and treatment of reliability, availability, and maintainability of the system as a true "design parameter". To this effect, accurate estimation and management of the system reliability of a design during the "earliest stages" of new product development is not only …
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Reliability analysis of smart electrical transmission system and reliability modeling through dynamic flowgraph methodology
Reliability assessment methods allow the evaluation of the reliability of systems and provide important information on how to improve a system‟s life to reduce risk and hazards. With the advancement in technology, the existing methods were extended and new methods were adopted. The advancement from …
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Reliability improvement and assessment of safety critical software
… method for ensuring high software quality and reliability is testing. An integrated methodology is developed in this thesis for reliability assessment and improvement of safety critical software through testing. The methodology is based upon input domain-based reliability modeling and …
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Likelihood-based testing and model selection for hazard functions with unknown change-points
… are common units of analysis for survival and reliability modeling. We develop a methodology to test for the alternative of a two-piece hazard against a simpler one-piece hazard. The location of the change is unknown and the tests are irregular due to the presence of the change-point only under …
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Towards a unified framework for sub-lexical and supra-lexical linguistic modeling
… support for previously unseen words, and dynamic reliability modeling may help improve recognition robustness for poorly articulated speech. In this thesis, we mainly focused on the integration of knowledge sources within the speech understanding system of a conversational interface. More …
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Electric Distribution Reliability Analysis Considering Time-varying Load, Weather Conditions and Reconfiguration with Distributed Generation
… study of electric power distribution system reliability evaluation and improvement. Reliability evaluation of electric power systems has traditionally been an integral part of planning and operation. Changes in the electric utility coupled with aging electric apparatus create a need for more …
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Reliability analysis of the electrical system in Boeing 757-200 aircraft and RB211-535 engines
… is today one of safest mode of transport. High reliability requirements have been established in the aviation industry because of the potentially severe consequences of system failure. In 1953, twin-engine aircraft were restricted to fly on routes that were within 60 minutes from an alternate …
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Modeling, design, fabrication and reliability characterization of ultra-thin glass BGA package-to-board interconnections
… lengths, higher component densities and system reliability enabled by the tailorable coefficient of thermal expansion (CTE), high dimensional stability and surface smoothness, outstanding electrical properties and low-cost panel-level processability of glass. The research objectives are to …
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Modeling, Control and Design Considerations for Modular Multilevel Converters
… following advantages: modularity, scalability, reliability, distributed location of capacitors, etc. In this study, the modeling, control and design considerations of modular based multilevel converters, with an emphasis on the reliability of the converter, is carried out. Both modular …
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A SYSTEMS RELIABILITY APPROACH TO MODELING OPERATIONAL RISKS IN COMPLEX ENGINEERED SYSTEMS
… approach, which combines simulation, engineering reliability modeling, and systems engineering. The new approach seeks to explore the possibilities inherent in taking a systems perspective to modeling the reliability of flow-control functions in hydrosystems engineering. Thus, taking into account …
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ADVANCED STATISTICAL ANALYSIS FOR TAIL-END PROBABILITY PREDICTION AND PERFORMANCE RESPONSE CALCULATION OF SEMICONDUCTOR PACKAGING PRODUCTS WITH A LARGE NUMBER OF INPUT VARIABLES
Stochastic reliability modeling capabilities are developed and implemented for semiconductor packaging problems with a very large number of input variables (> 10 input variables). The capabilities are aimed at three critical areas in the semiconductor packaging product development: (1) prediction …
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Reliability Impacts of Plug-in Hybrid Electric Vehicles on Power Systems
… in maintaining acceptable level of system reliability as new types of loads and generation introduce increased uncertainty in power system planning and operation. New types of electric devices or loads are often introduced in the market to provide customers more convenience and energy …
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Achieving Collaboration In Distributed Systems Deployed Over Selfish Peers - An Illustrative Case Study With Publish/Subscribe
… considering, any selfish goal and any reliability technique. For sake of concreteness, we will discuss the IG approach by means of the illustrative case of a Publish/Subscribe (pub/sub) architecture. In this way messages over the communication infrastructure will have a specific …