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.
Distributed energy storage systems in combination with advanced power electronics have a great technical role to play and will have a huge impact on future electrical supply systems and lead to many financial benefits. So far, when Energy storage systems (ESSs) are integrated into conventional electric grids, special designed topologies and/or control for almost each particular case is required. This...
-As the penetration of distributed energy resources (DER) in existing conventional grid increases leading to the distributed generation (DG) concept. The use of full scale dynamic simulation to analyze load variation, the frequency and voltage of the power system in DG provides complex tasks to researchers and planners such as huge computational time. This paper introduces modeling approach for power...
This paper describes how different power sources of a hybrid power system may be connected together through a DC bus and then to a grid through a main inverter in such a way that a decoupling between the state variables of the power sources and the state variables of the grid is achieved. A layout showing such a structure will be presented, and an online control strategy for this layout will be developed...
One of the desirable characteristics of inverters in three-phase systems is the ability to feed unbalanced loads with voltage and frequency nominal values. This paper introduces an innovative control method in combination with a three dimensional space vector modulation (3D-SVM) control strategy. It is able to feed grids with unbalanced loads while reducing the switching frequency losses. The results...
A hybrid power system formed by photovoltaic generators, wind energy turbines, batteries and other renewable energy systems is one of the solutions to the increasing energy demand and the lack of energy in rural, remote and difficult to reach zones. A key issue is the selection of the suitable power system architecture and the proper way to implement it. This paper describes the feasibility of an...
This paper demonstrates that the introduction of a Flywheel Energy Storage System (FESS) into a isolated hybrid grid increases the renewable energy penetration. The isolated power system studied includes diesel and hydro generators and wind turbines. The simulated and measured results clearly show the positive influence of the energy storage on the system performance. The system has been operating...
This paper presents an innovative simulation approach for power distribution in hybrid power systems (HPSs) using a root mean square (RMS) model for the electrical part of the system in combination with a set of differential equations to describe the dynamic behavior of the mechanical part of the system in the time scale. This new approach allows the simulation of complex hybrid power systems with...
Three-leg four-wire inverters are expected to play an essential role in power distribution because of its ability to handle the neutral current caused by unbalanced or non-linear loads. This paper presents a comprehensive analysis for a novel three-dimensional space vector modulation (3-D-SVMI) algorithm for three-leg four-wire inverters. A zero vector is generated by turning off all power switches...
This paper describes how different power sources of a hybrid power system may be connected together through a DC bus and then to a grid through a main inverter in such a way that a decoupling between the state variables of the power sources and the state variables of the grid is achieved. A layout showing such a structure will be presented, and an online control strategy for such a layout will be...
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.