abstract: in this paper a control scheme for grid-connected operation mode and the island state of distributed generation is presented. in normal conditions, every inverter dg system in micro-grids to supply a preset power, normally operate in a constant current control mode. when micro-grids removed from the network, dg inverter of each system must recognize the island and change position to v...

The present study presents the Phasor Discrete Particle Swarm Optimization (PDPSO) algorithm, an effective optimization technique, the multi-dimensional vectors of which consist of magnitudes and phase angles. PDPSO is employed in the configuration of micro-grids. Micro-grids are concepts of distribution system that directly unifies customers and distributed generations (DGs). Micro-grids could...

The aim of this paper is to provide a concept for an information modeling method for micro grids, which will be used as building blocks for a smart grid. The data modeling method utilized is based primarily upon the IEC 61850 communication protocol standard. The article points out several useful features of the IEC 61850 communication protocol, the virtual information model and the communicatio...

As the power generation paradigm is going green by involvement of renewable energy sources, the energy management process also has to evolve towards new more powerful, intelligent control methods. The inter-connection of a large number of renewable energy sources to the grid, along with their obvious advantages, makes the grid highly distributed. This may cause problems of efficient control, st...

Integrating large-scale micro-generation in distribution grids is challenging for distribution grid operators, particularly when renewable energy sources (RES) and micro-cogeneration are involved. In this paper we contend that recent developments in multiagent decision making under uncertainty can positively contribute to safe, efficient and costeffective operation of future distribution grids.

Customer satisfaction and participation in utility supply packages is the first and foremost factor in the success of any supplying agency whether wholesale or retail dealer. The paper presents the concept of major prospects of nonautonomous micro-grids installed in a certain locality. The article shows the basic background that is required for the installment of micro grid in a particular area...

As energy demands around the world increase, the need for renewable energy sources, such as Micro-Grid (MG) that will not harm the environment has been increased. Micro-Grid has been extensively investigated as a promising solution to energy challenges in 21st century. The optimal generation is one of the important functions for the Micro-Grid operation. It should be noted that supplying therma...