• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 69
  • 61
  • 37
  • 6
  • 3
  • 2
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 192
  • 192
  • 69
  • 67
  • 63
  • 60
  • 60
  • 59
  • 57
  • 47
  • 40
  • 40
  • 39
  • 35
  • 28
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
191

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.
192

Koncept nabíjecí stanice s možností off-grid provozu pro elektrokola / Concept of Charging Stations with off-grid Operation for Electric Bicycles

Leitman, Valentín January 2017 (has links)
This thesis deals with charging stations for electric bicycles powered by renewable energy. The aim of this work is to make a proposal for the hybrid charging stations for electric bicycles, which will work independently and, if necessary, will be backed up by a network. In this thesis is entered theoretical information on the issue of electric bicycles, the batteries, charging stations, the connectors of chargers, and photovoltaic systems. The practical part of this thesis is the basic design of the charging station and its design of the mathematical model of the individual parts in Simulink program, which are linked to the actual design of the charging station. In conclusion, this thesis deals with energy and economic analysis of the proposed system, therein included various methods of assessing investment recommendations of appropriate processing methods and overall assessment of the subject.

Page generated in 0.0493 seconds