Global ETD Search
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 20 of 372 for “"Distribution Systems"”.
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Bursts identification in water distribution systems
… the identification of burst locations in water distribution systems (WDS) by analysis of field and simulation experimental data. This required the development of a new hybrid method of burst detection and sizing, and also a burst location identification algorithm. Generally, existing practice …
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Equitable Loss Allocation in Distribution Systems
… equitably allocate losses to these inverters in distribution networks based on their kVA ratings. To achieve this, we first obtain closed form approximation of nonlinear power-flow solution. A circuit-theoretic method called power tracing then uses this power-flow solution to determine a set of …
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State estimation in electrical distribution systems
The changes occurring in electrical systems, due to technical and economic reasons, and the requirements of a reliable and efficient delivery of the power supply to the customers demand a smarter management of the current grids at all the levels. In particular, the distribution level, until now …
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Global optimization of water distribution systems
… GLOBAL for the global optimization of water distribution systems is presented. The procedure identifies an optimal tree layout for the network and augments it with loop forming links to assure reliability. Thus, the chosen optimal layout in judiciously subjected to various flow configurations …
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Modelling water quality for water distribution systems
Maintaining water quality in distribution systems has become a prominent issue in the study of water networks. This thesis concentrates on disinfectant and particle counts as two important indicators of water quality. The models discussed in this work are based on data collected by the author. The …
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Effectiveness of Disinfectant Residuals in Distribution Systems
In many drinking water systems in the United States, disinfectant is added to water as it leaves the plant to maintain a residual concentration in the distribution system. The disinfectant residual is maintained to inactivate contamination that enters the distribution system, to control biofilms, …
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Grid Interfaces for Flexible and Resilient Distribution Systems
… means to improve the resilience of the distribution system. This work proposes a distribution system architecture consisting of IIDs, smart electrical distribution panels, and DERs to enable flexible and resilient distribution systems. It enables the operation of the distribution system …
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Distributed Generation Capacity Assessment of Active Distribution Systems
… climate change. Driven by this, our electricity systems are undergoing a massive transition from centralised fossil fuel-based generation to renewable energy sources. However, increasing uptake of renewable-based distributed generation (DG) has caused technical issues such as over-voltage and …
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Distributed Generation Capacity Assessment of Active Distribution Systems
… climate change. Driven by this, our electricity systems are undergoing a massive transition from centralised fossil fuel-based generation to renewable energy sources. However, increasing uptake of renewable-based distributed generation (DG) has caused technical issues such as over-voltage and …
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Decentralized economic dispatch for radial electric distribution systems
Electricity power systems, typically a very slow-moving and traditional industry, is in a state of flux as technological innovations, such as rooftop solar, home energy management systems, and electric vehicles, are being rapidly integrated into electric distribution systems. As the need to …
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Cavitation and Bubble Formation in Water Distribution Systems
… gas are not directly relevant to natural water systems and require a redefined cavitation inception number which considers dissolved gases. In a pressurized water distribution system, classical cavitation is only expected to occur at extreme negative pressure caused by water hammer or at certain …
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Reliability and restoration algorithms for electrical distribution systems
… are important considerations in electric distribution systems. Reliability analysis is generally considered as a design tool to be used to improve the performance of the system. Restoration analysis is generally considered as a tool to be used for outaged situations. Reliability and …
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Resilience of power distribution systems under extreme weather conditions
In this dissertation, the reliability of power distribution systems under the impact of adverse weather, with an emphasis on hurricanes, is studied. This research investigates the effects of failures of utility wood poles on the reliability and resilience of electric distribution systems. The …
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Pressure, leakage and energy management in water distribution systems
A fast and efficient method to calculate time schedules for internal and boundary PRVs and flow modulation curves has been developed and implemented. Both time and flow modulation can be applied to a single inlet DMA. The time modulation methodology is based on solving a nonlinear programming …
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A Multi-Agent Design for Power Distribution Systems Automation
… location, isolation and restoration in power distribution systems is presented. In proposed approach, when there is a fault in the Power Distribution System (PDS), MAS quickly isolates the fault and restores the service to fault-free zones. Hierarchical coordination strategy is introduced to …
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Optimization in electrical distribution systems: Discrete Ascent Optimal Programming
… a new algorithm for optimal power flow in distribution systems. The new algorithm, Discrete Ascent Optimal Programming (DAOP), will converge to the same solution as the Lagrange multiplier approach as demonstrated by example. An intuitive discussion illustrating the path of convergence is …
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