Performance, quality and reliability issues are becoming more and more important for the emerging photovoltaic markets worldwide. The purpose of this work is comparing and presenting operational performance results of grid-connected PV systems, as collected and elaborated for Task 2 of the Photovoltaic Power Systems Programme (PVPS) of the International Energy Agency (IEA). The data analysed he...

Nowadays, photovoltaic (PV) plants are receiving a very great attention due to their intrinsic ability to directly transform solar energy in electrical energy. Nevertheless, electricity generated from photovoltaic plants can rarely provide immediate response to load demand, as these sources do not deliver a regular supply immediately compatible with consumption needs. In stand-alone PV plants, ...

This paper presents an improved current control strategy for a three-phase grid-connected inverter under distorted grid conditions. In terms of performance, it is important for a grid-connected inverter to maintain the harmonic contents of inverter output currents below the specified limit even when the grid is subject to harmonic distortion. To address this problem, this paper proposes a modul...

This paper presents a balanced active and reactive power control, using a Phase Locked Loop for synchronization, and applied to a grid connected Five Level Inverter. The energy source of the system can be a photovoltaic generator or a wind turbine. We size the passive elements of the system and explain the value of the system architecture using a Five Level Inverter when compared to a classical...

This study proposes a soft switched Output Current Sourcing (OCS) grid connected inverter that applies a high frequency isolation transformer. Current sourcing at the output implies that, ideally, the injected current will be independent on the load voltage. The current injected to the line is controlled by varying the switching frequency and dithering at low currents. The system does not requi...

In grid connected applications the synchronization of output signals of the converters to be connected with grid parameters frequency and phase is of great importance. Different methods based on Fourier transforms, zero-crossing detection, Kalman filters, phase-locked loops (PLL) and others are used for this synchronization. This paper presents a new PLL for synchronization of the output curren...

The amount of the conventional energy sources is decreasing day by day. Here in Bangladesh, the main source of energy generation is natural gas. To avoid the upcoming energy crisis, we need to incorporate the renewable energy sources with which Bangladesh is blessed due to its geographical location. Bangladesh has a very good prospect for the solar Photovoltaic integration. The technical potent...

Abstract— A case study of grid connected PV system analysis is done for 500 kW grid connected solar photovoltaic (PV) system at a northern location of Bangladesh. HOMER and MATLAB Programming tools and monthly average solar radiation data from NASA is used for this study. In this paper a grid connected PV power plant is designed and simulated using HOMER software, the power plant is sized to su...