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 24 for “"Hydro Power"”.
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An Investigation of Micro-Hydro Power Generator Characteristics
Research on the electrical characteristics of hydroelectric power systems has to the author’s knowledge, not received much attention. However, renewed interest in hydropower microgeneration has created a need to understand the underlying properties. This thesis presents a pioneering empirical …
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Governor control optimization of hydro power plants using hybrid fuzzy logic and PID control.
Control of hydro power plants has been an issue of concern for researchers; moreover, more emphasis has always been put on governor control which naturally has slower response, but vital in ensuring system stability and elimination of load tracking errors. This thesis studies on ways to use fuzzy …
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An investigation into the use of linear generators in the Schneider Hydro-Power Generation system
The Schneider HydroBeaver is a revolutionary idea in Hydro-Power Generation. Conventional dams employ the use of turbines which require a large head to generate the power. The large head is developed through dams, which alter the natural course of rivers, destroying fertile river valleys and …
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Low head hydropower : a performance improvement study for Archimedes Screw turbines using mathematical modelling
… present MSc by research is to study the low head hydro power technologies, focusing on the use of Archimedes Screw, as hydro turbine, for electricity production and suggest potential design improvements with proper use and installation guidelines, intending to increase the produced energy per …
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The influence of water composition on the pitting behaviour of newly developed corrosion resistant steels
… introduction of a fundamentally new technology, hydro-power, in which machines are powered hydraulically using mine water fed from above ground. Mine water is aggressive and has a variable acidity and pH, and contains high concentrations of sulphate, chloride and nitrate ions. In order to …
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Induction generators in mini and micro hydro applications as a low cost alternative
… develops low cost techniques for mini and micro hydro power generation with the chief concern of investigating induction generators as a viable alternative. A method of reconfiguring the static excitation of a self-excited induction generator is studied to supply a single-phase or an unbalanced …
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Energy Transitions, Economic Growth and Structural Change: Portugal in a Long-run Comparative Perspective
… Industrial Revolution, the incentives to turn to hydro-power did not arise with the same intensity as in other coal-poor countries. Neither capital nor demand was present to guarantee the viability of large-scale hydro-power. Thermo-power stations were more adaptable to the small size of demand, …
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Balancing of intermittent renewable generation in smart grid
… residential hot water heaters to balance wind power deviation from plan. The electricity supply-demand balancing problem becomes increasingly more difficult. A large portion of complexity to this problem comes from the fact that most renewable energy sources are inherently hard to control and …
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Gradient-Based Distributed Model Predictive Control
… optimization algorithm is evaluated on a hydro power valley benchmark problem. The hydro power valley consists of several dams connected in series where each dam is equipped with a turbine to extract power from the water. The objective is to control the water flow between the dams such …
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A methodology for decision making applied to new and renewable energy technologies in India
… to research in several prospective areas. While hydro power and bio energy has been with us long now, success and commercial viability is being achieved in solar energy applications. Similar trends are visible in wind energy. Long term potential for geothermal energy, sea power and fuel cells …
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Regulating electricity and natural gas in Peru : solutions for a sustainable energy sector
… to industry fueled by generous endowments of hydro power capacity and natural gas reserves. However, investment in electricity generation capacity has not kept pace with the rapid increase in demand and threatens to stymie future economic growth. A flawed regulatory environment is to blame, …
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Planning energy systems for small, rural communities (including economic, technical and thermodynamic criteria)
… the current energy system, development of a hydrological prediction model for determining hydro power potential, use of computer models to determine house space heating demands, and development of methods for predicting meteorological parameters from long term data. The application of the …
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Reinforcement learning approach for optimizing load shedding and controller parameter tuning in active islanded power systems
… the resilient design an important feature for power systems. Incorporating the capability of parts of the power system to operate as active decentralized systems is one way of increasing the resiliency and enhancing the system reliability. This thesis addresses two significant issues related to …
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Moisture Conditions and Frost Resistance of Concrete in Hydraulic Structures
… the waterline of hydraulic structures, such as hydro power structures. Progressive damage to the concrete surface results in exposure of coarse aggregate and also exposed reinforcing steel in the long-term perspective. A possible deterioration process of concrete at the waterline is leaching of …
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Nonlinear transient and steady state analysis for self-excited single-phase synchronous reluctance generator
… attracted more attention for wind, tidal and hydro power generation applications. Compared to synchronous and DC generators, they have the advantages: they are brushless, they are robust, they do not need DC excitation and they are relatively low cost.;Compared with SEIG, the self-excited …
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A methodology to assess the interactions of renewable energy systems dynamics with fluctuating loads
… that technical problems in PV_ operation. will _power was subtracted from the utility load with the expectation that conventional generation would meet the load. This approach is valid for small penetration levels and for PV facilities connected near the load centers. Second, PV system was …
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Multicriteria Decision Method for Renewable Energy Production: Siting Solar, Wind and SHP Plants in Zimbabwe
… on existing resources. Most of the energy is powered by coal-fired stations that now require major upgrades. The low-capacity problem has resulted in frequent production stops and power cuts that affect economic performance of industries and services. These power shortages have led to the …
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Large-scale grid-connected renewable energy in Australia: Potential barriers, strategies and policy support mechanisms that may affect RE development from the perspective of energy specialists at a leading consultancy operating in the built environment in Australia
… on price and emergent technology. Pumped hydro power is expected to be an important compliment to renewable energy in future, to assist in addressing the technical barriers associated with high levels of non-synchronous generation in the network. A reform of the NEM may also be required to …
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Improving construction processes in Nigeria using the Last Planner System
… hand involved the construction of a multipurpose hydro-power dam project; where comparisons were made between typical LPS projects and the project management techniques applied within the project. Data was collected through observation site activities, interviews, documentary analysis and …
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Transient stability assessment of hybrid distributed generation using computational intelligence approaches
… electric vehicles, distributed generations, power electronic interface circuits, advanced controllers etc., the present power system network is now more complex than in the past. Consequently, the recent rate of blackouts recorded in some parts of the world indicates that the power system is …
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