This paper concentrates on the control of hybrid fuelcell (FC)/energystorage distributed generation (DG) systems under voltage sag in distribution systems. The proposed control strategy makes hybrid DG system work properly when a voltage disturbance occurs in distribution system, and it stays connected to the main grid. This controller determines the supercapacitor power that should be generate...

The application of power semiconductor devices in the area of power electronics and power system are the key factors which kindle the power quality problems particularly the harmonics, burden of reactive power and neutral current due to unbalance. The above citied power quality problems are predominant due to wide usage of 1-φ / 3-φ , linear and nonlinear loads which are fed from three phase fo...

Today, with attention to increase in sensitive electrical equipments application in distribution networks and their susceptibility to the power quality deficiencies, the protection necessity of sensitive loads against undesirable effects of these disturbances are in focus. So, in this paper voltage sag deficiency and Dynamic Voltage Restorer (DVR) would be introduced as the most prevalent power...

In recent years, the world has been actively promoting development of wind power, photovoltaic, and other new energy. The inherent randomness intermittency power output have led to reduction supply-side controllability stability, system is facing severe challenges. Aiming at irregular fluctuation restriction between charge discharge depth service life hybrid energy storage equipment, a hierarch...

The high development of renewable energies research field has noticeably led to growing interest to connect such as devices of the electric distribution network. In this work an effectiveness power control strategy adapted on photovoltaic generation system is employed, whereas the performances of the global system are analyzed using MatLab/ Simulink environment software. The employed strategy i...

Low voltage microgrids including sensitive loads often face unbalanced load conditions. Therefore, a compensation procedure should be carried out in order to balance and restore sensitive load’s voltage. In this paper, an effective voltage control strategy has been proposed for the autonomous operation of microgrids, under unbalanced load conditions.  The proposed strategy balances single-phase...

The energy router (ER) is a current power electronic device which can integrate distributed energy, provide for different types of loads, and simultaneously realize the free flow energy. In traditional active distribution networks, quality affected due to access photovoltaics (PV) various loads. Hence, this problem be improved by accessing ER. This paper shows improvement grid when ER used PV, ...