Haku
Viitteet 1-10 / 27
Power quality issues in distribution grids caused by solar PV power generation
(2018)
Diplomityö
Diplomityö
Distributed power generation is not future anymore. Solar PV power generation is widely spread and this has an impact on the distribution grid. The biggest impact is the possibility that overvoltages can occur during moments ...
Investigation on grid synchronization methods in PV inverters during unbalanced conditions
(2018)
Diplomityö
Diplomityö
Photovoltaic power is vital to meet the future global energy demand. DC power from the photovoltaics is converted to AC power using PV inverters and integrated into the AC power electrical grid. The synchronous operation ...
Reliability analysis of the Finnish power system
(2018)
Diplomityö
Diplomityö
Maintaining power system security and adequacy has become more and more challenging due to the desire to decarbonize the electricity sector promoting renewable electricity. Power inadequacy occurs when the available ...
Computing the Relative Permittivity and Loss Tangent of Sub-strates by the Numerical Model of a Microstrip Transmission Line
(2018)
Diplomityö
Diplomityö
The microstrip transmission line numerical model is used to search out the relative permittivity and loss tangent of the materials of the substrate at the high-frequency range (400 MHz – 3GHz). This thesis shows outcomes ...
Wireless Monitoring of a Charge Storage in an RF Energy Harvesting Device
(2018)
Diplomityö
Diplomityö
Today’s advancements in modern technologies have grown the demand of low power wireless application devices usage. Using the batteries in any portable electronic devices results in a limitation in occupying the space and ...
Verkkoon liitettävän aurinkosähköjärjestelmän pilottihanke
(2018)
Diplomityö
Diplomityö
Aurinkosähkövoimaloiden määrän kasvu on ollut viime vuosina kiihtyvää. Aurinkosähkö on yksi uusiutuvan energian tuotantomenetelmä. Yhdessä tuuli- ja vesivoiman kanssa se tarjoaa päästöttömän ratkaisun energiantuottoon ilman ...
Design and Construction of A PLL System for A 96-MHz FM Transmitter
(2018)
Diplomityö
Diplomityö
The phase-locked loop (PLL) is used as frequency synthesizer in numerous electronic devices. This thesis presents design and construction of a basic PLL system on solderless breadboard, using discrete components and ...
Modelling and Simulation of Compound PV-BESS Systems
(2018)
Diplomityö
Diplomityö
The thesis reports on the modeling and simulation of PV systems with grid-connection. The research carried out assesses the impact of key parameters of Photovoltaic systems on power generation and power quality. It also ...
Reactive Power Control in Grid-Connected Converter
(2018)
Diplomityö
Diplomityö
During the last two decades, power system engineers are much concerned about the quality of power that is being supplied to the customers. Power losses at the lower level, compensating devices to balance the active and ...
GHz Range CMOS LNA
(2018)
Diplomityö
Diplomityö
This thesis work presents 7GHz CMOS Common Gate LNA, Layout design and a scaled down version of the same topology with BJT, operating frequency of 5MHz. Schematic was designed in OrCAD Capture CIS, gain and linearity ...