Sri Lanka has a number of small waterfalls and channels. Related to this there is a significant potential to develop small hydropower plants, thus to generate much needed electricity for country’s development efforts. Small hydro power plants cause less environmental effects compared to large scale hydro power generation and power generation using fossil fuel. Therefore, it is a timely requirement to explore the possibilities of utilizing small water streams to generate electricity as much as possible as well as to optimize the energy generation with the available    water in those water streams.   The importance of small hydro power is highlighted in the   Sri Lanka’s energy generation plan, and  the Ceylon Electricity Board (CEB) annual report states that in year 2011 total installed capacity of small hydro plant was around 200MW and it is expected to expand energy generation to around 800GWh. This study focuses on finding out optimum operating parameters to maximize the energy generation of existing small hydro power plant in the country. By selecting a few small hydro power plants, preliminary studies were performed to identify optimum values of water flow rate to maximize the efficiency of the power generation. The study revealed that the selected plants had not operated at the maximum efficiency; hence they did not optimally utilize the available water.

This thesis focused on creating a model of a small hydropower plant model (SHPP) and a part of the electricity network in the simulation software "PSCAD" (basing on real sources). The model will be specified on the basis of the data obtained from the measurements to correspond with the real equipment.

Thesis deals with the use of renewable sources of energy focused on water energy, especially small hydropower plants in Czech Republic. It should clarify the legal and technical framework for energy production in small hydro power plants, types of aid and the amount for the operator. Case studies describe the construction and reconstruction of small hydroelectric power plants which are dependant on the amount of feed-in tariffs and try to find out the economic efficiency according to the selected methods of investment appraisal.

One of the main concerns of the power utilities is secure, continuously supplying electric power to customers, thus meeting so satisfy these as to regulatory requirements. Thus, the proposed paper presents a method of restoring the electric power supply applying the concepts of automatic reconfiguration of the aggregate distribution networks the possibility of islanded operation of small hydro (SHP), since the use of PCH so islanded in certain circumstances, or becomes only, or the best solution to be adopted in a contingency situation in order to reduce the impact of unwanted interruptions. Since the intrinsic decision making process of reconfiguration of distribution networks involves multiple objectives and constraints, the proposed methodology uses the Analytic Hierarchy Process (AHP) method, which is a very useful tool for issues involving multicriteria decision taken. Additionally, case studies for analysis and validation of the proposed methodology are presented. / Uma das principais preocupações das empresas distribuidoras de energia elétrica é garantir, de forma contínua, o fornecimento de energia elétrica aos seus clientes, atendendo assim tanto a satisfação desses quanto às exigências regulatórias. Sendo assim, o trabalho proposto visa apresentar uma metodologia de restabelecimento do fornecimento de energia elétrica aplicando os conceitos de reconfiguração automática das redes de distribuição agregados a possibilidade de operação ilhada de pequenas centrais hidroelétricas (PCHs), uma vez que a utilização de PCH de forma ilhada, em determinadas circunstâncias, torna-se ou a única, ou a melhor solução a ser adotada em uma situação de contingência com o objetivo de reduzir o impacto causado por interrupções indesejadas. Visto que a tomada de decisão intrínseca ao processo de reconfiguração das redes de distribuição envolve vários objetivos e restrições, a metodologia proposta utiliza o método Analytic Hierarchy Process (AHP) que representa uma ferramenta muito útil para questões envolvendo tomadas de decisão multicriteriais. Adicionalmente, são apresentados estudos de caso para análises e validações da metodologia proposta.

This thesis focused on creating a model of a small hydropower plant model (SHPP) and a part of the electricity network in the simulation software "PSCAD" (basing on real sources). The model will be specified on the basis of the data obtained from the measurements to correspond with the real equipment.

This diploma thesis deals with the design of hydraulic cleaning machine of fine screens located in the supply channel of small hydropower plant. The part of this thesis is also the design of hydraulic circuit and strength analysis using finite element method. The thesis also deals with the optimal debris removal. The thesis is attached by drawing documentation of selected parts of the mechanism.

This thesis focused on creating a model of a small hydropower plant model (SHPP) and a part of the electricity network in the simulation software "PSCAD" (basing on real sources). The model will be specified on the basis of the data obtained from the measurements to correspond with the real equipment.