Photovoltaic (PV) generation systems have been increasingly used to generate electricity from renewable sources, attracting a growing interest. Recently, grid connected PV micro-generation facilities in individual homes have increased due to governmental policies as well as greater attention by industry. As low voltage (LV) distribution systems were built to make energy flow in one direction, t...

Cascaded multilevel converters are promising candidates for grid-connected PV systems, but low-frequency ripples may exist in a DC link. Such not just inherent; they can occur due to environmental factors, such as variations certain range of irradiance the PV. To address this issue, article proposes clock phase-shifted (CPS) energy balance control method cascaded inverters photovoltaic (PV) sys...

The paper presents a detailed modeling and simulation of different control schemes of the real and reactive power flows in a three-phase voltage source inverter (VSI) interfacing a photovoltaic (PV) generation system to the power grid. Synchronisation of the inverter and grid AC waveforms is achieved using a phase-locked-loop (PLL) circuit. An effective decoupling strategy based on proportional...

A grid-connected photovoltaic (GCPV) system plays an important role in the development of green technology. However, generated (PV) power that is injected into grid causes instability system. Previous studies have shown quality for a three-phase thoroughly being discussed, but not single-phase Single-phase also contribute to low-voltage networks during high penetration as majority GCPV nowadays...

In this work infrared thermography is used for the performance assessment of a photovoltaic array integrated on the southern façade of NTUA's Chemical Engineering Building. This grid-connected 50 kWp solar photovoltaic array, installed under an EC Thermie Project (SE-142-97-GR-ES), operates in a standard and hybrid PV-Thermal configuration, meant to save conventional energy. The thermographic s...

Off-Grid is a part of the power distribution system which uses renewable energy based of power generation connected to the grid system. Power generation of multi energy is composed of renewable energy systems including photovoltaic, wind turbine, energy storage and local loads. Test bed of an OffGrid system is the technique to ensure stable operation during faults and various network disturbanc...

The quantity of installed photovoltaic (PV) systems in the German distribution grid is still increasing. In some areas the installed PV capacity exceeds 5.0 kWp [1] per house connection (HC). Therefore the load flow changes its characteristics and leads to new requirements for grid dimensioning. Additionally, the feed-in is carried out via inverter systems and a lot of power electronics have to...

This paper presents the modelling and design steps of a digital proportional multi-resonant controller used in a grid-connected photovoltaic (PV) system. It is shown that the use of only one ProportionalResonant (PR) compensator, tuned to the system fundamental frequency, may have its effectiveness compromised due to nonlinearities in the system components. To overcome this drawback and improve...