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1	Fotovoltaické dobíjecí regulátory v ostrovních systémech / Solar charge controllers for off-grid systems KRČKA, Pavel January 2013 (has links) This diploma thesis deals with photovoltaic rechargable regulators used in isolated, or off-grid photovoltaic systems. First, basic types of off-grid installations, including their functions and applications in practice are described. Then, possibilities of electric energy accumulation in photovoltaic systems are mentioned, considering actual, accesible technologies. Matters of electric energy accumulation in leaden accumulators are examined in detail. Main part of the diploma thesis is about electronic designs of photovoltaic, also called solar, rechargable regulators. These are the main connecting part between photovoltaic panels, accumulator, but also often connected charge, which is appliance. Individual electronic regulators concepts are described narrowly, then compared and evaluated in thesis´ conclusion.
2	Development of a Cost-Effective, Reliable and Versatile Monitoring System for Solar Power Installations in Developing Countries : A Minor Field Study as a Master Thesis of the Master Programme in Engineering Physics, Electrical Engineering Trella, Fredrik, Paakkonen, Nils January 2016 (has links) This report is the result of a conducted Minor Field Study (MFS), to the greatestextent funded by the Swedish International Development Cooperation Agency(SIDA), in an attempt to design a system for evaluating smaller solar power systems indeveloping countries. The study was to the greater part conducted in Nairobi, Kenyain close collaboration with the University of Nairobi. The aim was to develop asystem that would use easily available components and keep the costs to a minimum,yet deliver adequate performance. The system would measure certain parameters of asolar power system and also relevant environmental data in order to evaluate theperformance of the system. Due to the specific competence of the collaboratinggroup at the University of Nairobi, a Kinetis Freescale K64-microcontroller with anARM-Cortex processor was selected as the core of the design. Components wereselected, schematics were drawn, a circuit board was designed and manufactured andsoftware was written. After 12 weeks a somewhat satisfying proof-of-concept wasreached at the end of the field study in Kenya. The project however proved howdifficult it is to go from first idea to a functional proof-of-concept during a limitedtimeframe, and also in an East-African country. The final proof-of-concept was testedat Mpala Research Centre in Kenya and despite containing some flaws proved that itwould indeed be possible to design a working system on the principles discussed inthis report. The system is open-source, so anyone may use and modify it. Solar Power PV Systems Embedded Systems Freescale Freedom Board Freescale Kinetis Kinetis K64 Measurement of Solar Power IV curves Electronics project management Open Source Designspark PCB ECAD CAD EMC PCB manufacturing Prototyping Minor Field Study MFS SIDA SystemC Kenya Nairobi University of Nairobi Justus Simiyu David Karibe Arnold Bett Mjomba Kale Boniface J M Muthoka International Science Programme ISP MIC79110YML LM2576 Island System Hybrid System Solar Charge Controller Solar Power Inverter State Space Model Model Based Development Platform Based Development Makers Just-Us Powers Just-Us ESP8266 Fona mini DHT22 ACS758 Model of Computation MOC Toner-Transfer Toner Transfer 3D-CAD Mpala Research Centre

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Fotovoltaické dobíjecí regulátory v ostrovních systémech / Solar charge controllers for off-grid systems

Development of a Cost-Effective, Reliable and Versatile Monitoring System for Solar Power Installations in Developing Countries : A Minor Field Study as a Master Thesis of the Master Programme in Engineering Physics, Electrical Engineering