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An alternative energy supply to assist the main power stations in future power systems is expected to be distributed generation (DG), which is based on renewable energy sources (RESs). However, the rapid growth of power supply systems must also improve its reliability and supply quality. Interconnecting the DG systems to each other and to conventional power systems to operate in parallel in order...
Distributed generation technologies such as photovoltaic, fuel cells and micro turbines are emerging. However, these sources require interfacing units to provide the necessary crossing point to the grid. The cores of these interfacing units are power electronics technologies such as inverters since they are fundamentally multifunctional and can provide not only their principle interfacing function...
Modularity offers large potentials to the rising demands of modern power supply systems. It ensures an advanced level of flexibility and adaptability required by expanding grids. In this paper an introduction to modular design strategies in combination with standardized interfaces is given. Differences in application of modular design strategies to hybrid power system (HPS) hardware and software are...
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...
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