L’intégration de panneaux photovoltaïques dans un système électrique réduit la consommation des sources fossiles et apporte des avantages environnementaux. Toutefois, l'intermittence et les fluctuations de puissance détériorent la qualité d’alimentation électrique. La solution proposée est d’ajouter des éléments de stockage, coordonnés par un contrôleur local qui gère les flux de puissance entre toutes les sources et la disponibilité énergétique. Ce générateur actif PV peut générer des références de puissance et fournir des services « système » au réseau électrique. Puis les concepts liés au micro réseau sont transposés pour concevoir un système central de gestion de l'énergie d'un réseau électrique résidentiel, qui est alimenté par des générateurs actifs PV et une micro turbine à gaz. Un réseau de communication est utilisé pour échanger des données et des références de puissance. Un système de gestion de l'énergie est développé avec différentes fonctions de contrôle sur des échelles de temps différentes afin de maximiser l'utilisation de l'énergie PV. Une planification opérationnelle quotidienne est conçue par un algorithme déterministe, qui utilise la prédiction d'énergie PV et de la charge. Puis ces références de puissance sont actualisées chaque demi-heure en tenant compte de la disponibilité de l’énergie PV et l’état des unités de stockage. Les erreurs de prévision et les incertitudes sont compensées par le réglage primaire de fréquence. Les résultats de simulation et les tests valident la conception de la commande du générateur actif photovoltaïque ainsi que le système central de gestion de l'énergie du réseau résidentiel étudié / The integration of PV power generation in a power system reduces fuel consumption and brings environmental benefits. However, the PV power intermittency and fluctuations deteriorate the power supply quality. A solution is proposed by adding energy storages, which are coordinated by a local controller that controls the power flow among all sources and implements an inner energy management. This PV based active generator can generate power references and can provide ancillary services in an electric network. Then micro grid concepts are derived to design a central energy management system of a residential network, which is powered by PV based active generators and a gas micro turbine. A communication network is used to exchange data and power references. An energy management system is developed with different time-scale functions to maximize the use of PV power. An operational daily planning is designed by a determinist algorithm, which uses 24 hour-ahead PV power prediction and load forecasting. Then power references are refreshed each half of an hour by considering the PV power availability and the states of energy storage units. Prediction errors and uncertainties are compensated by primary frequency controllers. Simulation and testing results validate the design of the PV active generator local controller and the central energy management system of the studied residential network

This diploma work is dealing with problems related to production of electrical energy in compliance with environmental protection and assessment of its production from non-renewable sources in reference to sources being renewable. The work puts emphasis on the importance and utilization of solar electrical energy. The sun is a source that will not get dried or mined out and will not stop shining. The goal of diploma work was to appraise the investment effectiveness with regard to a photovoltaic power station and assess the power plant influence in relation to classic sources for energy production and environmental protection. Within the diploma work, there were appraised three variants of the investment project which assumed life time longer than 20 years comprising conventional financial flows, surface size of 30 000 m2 and roughly required output of 1.5 MW. Single options were assessed upon economical evaluation regarding different ways of financing, in terms of price, output and guarantees provided by suppliers including the assessment of grant influence on the project effectiveness. Based on these data, the most suitable version for the investment project of building up the photovoltaic power plant was chosen. At the conclusion, it is possible to state that the photovoltaic power plant is very considerate towards the living environment in contrast to classical sources for electrical energy production, for example coal-fired power plants which heavily contaminate the environment, and nuclear power plants with risks of radiation escapes.

The master thesis focuses primarily on issues of photovoltaic cells in terms of their defects. The introductory part deals with the history of photovoltaics, their introduction into practice and finally an explanation of the photoelectric effect itself. The thesis also describes photovoltaic cells themselves. It explains their principle, advantages, disadvantages and the creation of photovoltaic systems. A substantial part of the work is focused on the topic of detection of defects using luminescent methods. Subsequently, it describes procedural defects arising from the improper handling of already manufactured products. The final part deals with the main topic of the work, which is a detection using luminescence methods and it also mentions the non-luminescence method LBIC. The practical part of the master thesis contains the analysis of the current solution and of the subsequent proposal of solution using a low cost camera. It describes how to modify the camera, verify its spectral sensitivity using a spectrometer and measure the sensitivity of the CMOS sensor. The conclusion is focused on verifying the functionality of the proposed solution on different sources of infrared radiation and photovoltaic panels themselves.

This diploma thesis entitled Design and realization of a mobile photovoltaic power plant is dividet into two parts. In the first, theoretical part one can learn about the state of representation of renewable energy sources in the field of electrical power engineering and about the structure of photovoltaic power station systems. The secont part of this thesis is focused on the own design and realization of the mobile photovoltaic power plant, on the selection of individual suitable components and ther dimensioning. In addition, a model of a mobile power plant has been created, on the basis of which the power plant was constructed. Finally, one can find a source code analysis of a power plant monitoring using a microcontroler

This diploma thesis deals with the photovoltaic power plant in Zlín. Power plant is used for electricity supply of office building and stock. For better self-sufficiency there is designed battery system as storage for electrical energy which the object can not consume itself. In the theoretical part there are described development of photovoltaics and components used in power plants. Further there was described the building, construction of photovoltaic power plant and eventually also a subsidy program by which the project was financially supported. Main task in the practical part was to develop scripts in Matlab for evaluation of online measured data. Next point was an energetic evaluation of power plant operation. In the end there was calculated power plant return with subsidy support and without support. These calculations were done in PV SOL software. Eventually, there was evaluated how the system works and how the power generated by the photovoltaic power plant is used. In conclusion, there is summary of the measurements and calculations.

My diploma thesis focuses in its theoretical part on the analysis of photovoltaic cells, panels, their properties and defects . Further there are described materials from which the cells and panels are produced today but also there are mentioned materials which could affect the near future. There are also state the methods of measurement of photovoltaic cells . The practical part analyzes selected photovoltaic panels, determines the level of degradation by measurement and calculation with using the intensity of solar radiation. All results are entred into graphs and tables.

The master’s thesis deals with the principle of the photoelectric effect, the composition of the photovoltaic cell and different types of solar panels. Here is described the principle of converting wind energy into electricity. This master’s thesis describes reasons for using of the hybrid system. The next section describes the measurement system which is used to measure real operating statuses. The last section is an analysis of measured values and there are listed factors influencing the design of hybrid power system.

Project's goal is to test the large buildings' design options in regards to permanently sustainable construction. The author's aim is to design energy efficient multipurpose building, with minimal negative effects on environment. The positive impact on environment is visible on the preference of natural materials used in construction. External constructions of thermal conductivity coefficient at the level of passive standard are designed using objects of renewable energy. The location in Brno has been chosen for the proposed building, specifically the location known as brownfields. Lot is accessible from the street of Jan Babak, where public transport is available. The shape of the lot is in the form of incomplete oval with internal open atrium. The administrative part of the building takes half of the area with the rest of the area being used for other businesses, such as fitness centre and restaurant. Garages are proposed to be located underneath the main building, which is built on rigid structure. This rigid structure is a steel skeleton one with linked ceilings. The foundation of building is on stilt. The roof is of a flat type with variable slope, its structure and slope are of metal construction. Claddings are designed in the form of wooden structure filled with straw bales, the exterior is thermally insulated using fibreboard thermal insulation. Inner tract facade is proposed to be panelled with wooden planks. Photovoltaic panels will be placed both from the south and southeast of the outer oval. The rest of the facade will be panelled with grate for creepers. Only environment-friendly sources of energy are considered for the proposed building. Heating and cooling is based on the heat pump air-water system; using the rainwater as an example of renewing natural energy. The surroundings of the building are designed as meadows for of infiltration of rainwater. The proposed building has been assessed in terms of environmental sustainabilit

This master thesis deals with use grid-off photovoltaic system for recharging electric vehicle. First is explained the principle of converting solar energy into electric energy and theoretically describes the components of the system. Furthermore, is presented a real application of the photovoltaic power plants in the world for recharging electric vehicles but also for other uses. The next section theoretically describes the grid-off system how it shout look like in real and there are presented the possibilities of choice of components. The main part is the actual construction of the grid-off system for recharging electric vehicle and measurement. The conclusion of this thesis is made up for the expected economic recovery of the entire system.

The aim of the Thesis is theoretical clarification of the issues of photovoltaic power plants, their diagnostics, inspection and performance measurement, including negative impacts on their operation and subsequent application of theoretical knowledge during practical inspection and diagnostics of PV power plants. In its introductory part, the Thesis deals with design, manufacturing and development of PV cells and panels and describes other necessary elements and components, including their use in individual types of photovoltaic systems. Another part describes electric parameters of PV cells and panels, especially the parameters that can be found out by measurement of V-A characteristics and also the parameters affecting the shape of the V-A characteristics. The third part is focused on failures of photovoltaic systems, which include various defects of photovoltaic cells and panels, it also provides for adverse factors affecting operation of the entire system, associated not only with weather influences but also with the actual design of the photovoltaic system. The fourth part deals with possibilities of increasing the cost-effectiveness of electricity generation by PV power plants on the basis of practical experience of their operators. The subsequent part determines, on the basis of technical standards, procedures for PV power plant inspections, the procedures for measurement and diagnostics of PV power plants and also other prerequisites connected with inspections and measurements. This part includes also a description of requirements for measuring devices, most frequent measurement errors, adverse impacts affecting measurements and methods of assessment of the data measured. The last part of the Thesis is practical. At first it deals with verification of the impact of defects of PV modules on the shape of their V-A characteristics, then with execution of inspections and diagnostics of a particular PV power plant, evaluation of the data identified and measured, as well as with a proposal of optimisation measures to increase cost-efficiency of the operation of that particular PV power plant.