The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper discusses about the hybrid cascaded nine level inverters for photovoltaic applications. Cascaded multi-level inverter is made up of series connected half bridge inverters and the output voltage of cascaded MLI is the sum of all inverter output voltages. Cascaded MLI produce staircase output voltage waveform having less harmonics, high output voltage, lower acoustic noise, as compared to...
Most of the large scale photovoltaic power plants (LS-PVPP) count on power converters with a central configuration. Advantages such as robustness, low maintenance and installation cost makes this configuration the preferred specially suitable in large scale systems. However, important drawbacks like the low efficiency level make necessary to develop new solutions for future power plants. In this paper...
This work presents a back to back converter topology with the ability to connect two power systems of different voltages and frequencies for the exchange of power. By utilizing indirect AC to AC conversion decoupling is achieved between the power systems with one of three phase, two level voltage source converters performing the AC to DC conversion that maintains the required DC bus voltage level...
Hybrid LV ac/dc microgrids are being considered for commercial buildings which bring new design requirements for the multiport converter aimed to interface both ac and dc grids. In this paper, we explore the potential to use two well-developed topologies for this targeted application. An optimization-based genetic algorithm which allows to find the best possible choices among different off-the-shelf...
Driven by economic and environmental concerns, countries around the world are demanding renewable energy resources (RES). Among the available renewable resource; wind and solar energy are promising resources. Recent energy regulations in Jordan have allowed the customers to install their own Photovoltaics generation (PVs) to cover their full energy consumption. This paper investigates the impact of...
The role of inertia emulation and voltage control is fundamental to support the integration of distributed generation in weak power grids and Virtual Synchronous Machines (VSMs) represent an attractive solution to assume both of these roles. However, VSMs act as voltage sources and this makes it difficult to address power quality issues. Virtual impedances are commonly applied in the literature to...
Renewable energy resources are connected to power grid through voltage source inverters. In these systems, the electric current entering into the grid is supposed to fulfill the IEEE criteria, so that high quality of power with less distortion is transported. Due to this, low pass filters like L, LC or LCL are applied by means of the inverter to minimize the harmonics getting into the grid. LCL filters...
The Compact Fluorescent Lamps (CFLs) are widely adopted in residential and commercial sector. This adoption is proposed following the energy conservation and environmental protection efforts. Despite, the CFLs consume low power, many users using these loads can cause a harmonic impact depending of the Attenuation-Amplification Effect. For instance, if this Effect is neglected (e.g., using Harmonic...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.