International Journal of Engineering Research and General Science Volume 3, Issue 2, Part 2, March-April, 2015 ISSN 2091-2730 605 www.ijergs.org Modeling and Simulation of a Microgrid with Multiple Energy Resources. Mr. Siddharth Endrakanti, Mr. K.S.Mann, Dr. M.Narendra Kumar Gurunanak Institute of Technology- Electrical and Electronics Engineering Department, Ibrahimpatnam- 501506. e.sid@outlook.com Abstract— this paper presents the modeling and simulation of a Microgrid with three power sources and along with a battery as a storage system. The renewable sources are solar photovoltaic, fuel cell and wind turbine. The objective of this paper is to describe useful model of integration of non renewable sources and how the Microgrid performs accordingly along with a comparison in between output of Microgrid and the output with power quality improved. The modeling of the full system including all the stages is performed using MATLAB and SIMULINK software package. The Microgrid, for general analysis is connected to a load and is analyzed. The Microgrid operated appropriately where the settling time is considered as 2e-6. Keywords: Batteries, Fuel cells, Microgrid, Photovoltaic cells, inverter, wind power, three phase measurement, load and Simulink. I. INTRODUCTION A Microgrid is a model of a power system that integrates the renewable energy sources along with a storage, for optimal generation and distribution of power for a confined area. When a general scenario is considered, the transmission losses are of about 30% of the energy generated, hence representing the drawback of a largely interconnected power system. The general power system in effect, of course can fulfill a large power demand but when it comes to the case of generation or transmission or distribution failures, the solution becomes a much complicated one. But, when a Microgrid power system is taken into account, there are no transmission losses besides renewable energy and ecofriendly power. This paper outlines the simulation model of a Microgrid where the input is solar for photovoltaic cell, H 2 +Air for fuel cell and wind for windmill integrated together for an output of 3 phase AC power. II. MICROGRID As Microgrid is defined as an effective integration of renewable energy sources for optimal and ecofriendly power generation, the models of renewable sources are discussed. The power is integrated dynamically so as to maintain the output power constant. The harmonics are eliminated using the active filter. The circuit is as shown in figure 1. A circuit breaker is used to trip automatically when wind provides the sufficient amount of power. It also helps in protecting the over current sensitive renewable energy sources. The load is considered as a 3 phase grounded one.