A Survey to Micro Grids and its Applications
Mojtaba Mohseni1, Abdolhamid Sohrabi2, Ali Ghareaghaji3

1Mojtaba Mohseni, Department of Electrical Egineering, Najafabad Branch Islamic Azad University, Isfahan Iran.
2Abdolhamid Sohrabi, Department of Electronic Engineering, Bushehr Branch Islamic Azad University, Bushehr Iran.
3Ali Ghareaghaji, Department of Electrical and Computer Engineering, Shahid Beheshti University, Tehran Iran.
Manuscript received on 13 February 2014 | Revised Manuscript received on 20 February 2014 | Manuscript Published on 28 February 2014 | PP: 27-31 | Volume-3 Issue-9, February 2014 | Retrieval Number: I1468023914/14©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Application of individual distributed generators can cause as many problems as it may solve. A better way to realize the emerging potential of distributed generation is to take a system approach which views generation and associated loads as a subsystem or a “microgrid”. During disturbances, the generation and corresponding loads can separate from the distribution system to isolate the microgrid’s load from the disturbance (providing UPS services) without harming the transmission grid’s integrity. This ability to island generation and loads together has a potential to provide a higher local reliability than that provided by the power system as a whole. In this model it is also critical to be able to use the waste heat by placing the sources near the heat load. This implies that a unit can be placed at any point on the electrical system as required by the location of the heat load.
Keywords: Microgrid, Distributed Generation, CHP, Intentional Islanding, Voltage Droop, Power Vs. Frequency Droop, Inverters.

Scope of the Article: Grid Networking/ Computing