Abstract: A DC microgrid (DC-MG) is a novel power system that uses DC distribution in order to provide high quality power. The study system is made by a photovoltaic array (PV), a wind generator (WG), a fuel cell (FC), and an energy storage system (ESS) to establish a small type DC microgrid, with the bus being established by DC/DC converters with fuzzy controllers. An overall power dispatch wa...

In this project presents a new non conventional energy source based bidirectional dc/dc converter for transfer the power in both directions. The nonconventional source of solar energy with Maximum Power Point Tracking is used to avoid the demand of electric power, which is inexhaustible and non pollution .The maximum power point traction is the combination of switch mode converter and Controlle...

A hybrid alternate current/direct current (AC/DC) microgrid consists of an AC subgrid and a DC subgrid, and the subgrids are connected through the interlink bidirectional AC/DC converter. In the stand-alone operation mode, it is desirable that the interlink bidirectional AC/DC converter manages proportional power sharing between the subgrids by transferring power from the under-loaded subgrid t...

Abstract: DC auxiliary systems are usually relied upon as the last source of reliable electric power at an installation of power plants and substations. Because DC auxiliary systems and battery power sources differ from AC systems, it is important that DC system protection designer is aware of their special considerations. In Standard IEC 61660-1 is given mathematical model for dynamics analysi...

This paper proposes an autonomous and economic droop control scheme for DC microgrid application. In this method, a cost-effective power sharing technique among various types of DG units is properly adopted. The droop settings are determined based on an algorithm to individually manage the power management without any complicated optimization methods commonly applied in the centralized control ...

This paper presents the analysis of Renewable Hybrid Power System (Wind Turbine and Solid Oxide Fuel Cell) connected to the Grid and the performances of front-end three phase power Inverter. In order to Inject more power to the Grid Safely, without creating disturbances at the Grid, the Power Conditioning System (PCS) is used. This type of Combination (Wind Turbine and Solid Oxide Fuel Cell) is...

The scope of the presented paper is concentrated on two terminal HVDC transmission system. The intention of the paper is to present a precise insight into the limitations of the transmitted power of a HVDC system incorporated in real AC power system. The paper demonstrates the impacts of the combined AC/DC system model parameters on the transmitted power through the DC link. Also, in this paper...

In this paper, analyzing the operation of a Permanent Magnet Synchronous Generator (PMSG) based stand alone wind power system with Sensorless Maximum Power Point Tracking (MPPT) and a system for storing energy during wind speed and load variations. In standalone system, power, balance and power quality require the energy storage system. In conventional systems, MPPT depends on wind turbine para...

––The objective of this paper is to propose anovel multi-input power converter for the gridconnected hybrid renewable energy system in order to simplify the power system and reduce the cost. The proposed multiinput power converter consists of a Cuk fused multi-input dc–dc converter and a fullbridge dc– ac inverter. The incremental conductance method is mainly used to accomplish the maximum powe...