A Comprehensive Study on Microgrid Technology

International journal of engineering research and technology, 2018

Microgrids are small scale version of the power grid in which distributed energy resources, storage devices and loads are localized in a defined geographical area. A microgrid offers an alternate solution to the grid stress problem. Microgrids are building blocks of the Smart Electrical Grid. Microgrids can be operated in grid tied and islanded mode. Power quality is a very important issue in a microgrid because it directly affects the operation of a microgrid. In this paper operational behavior of microgrid under various modes and loading conditions has been studied. Various issues and challenges are presented. Multi loop Control structure has been employed for the controller design to improve the performance of the microgrid. The purpose of this research work is to understand the dynamics of microgrid in grid tied and islanded mode to ensure reliable and secure operation. Simulation results for various conditions are performed to evaluate the performance of microgrid. It is shown ...

2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA), 2010

The objective of this paper is to present the current status and state-of-the-art of microgrid systems as well as the barriers that are being encountered for their integration to the network. The expectation about the microgrid performance is high, thus, issues related to the microgrid standards, autonomous operation, control strategies, regulatory barriers as well as its protection and islanding operation, among other aspects, will be discussed herein. Some examples of practical installations worldwide will also be presented.

The purpose of this research paper is present of overview of microgrid (MG) system. This paper demonstrate the techniques of energy generation through renewable energy sources (RES) such as solar, wind, geo thermal, bio mass and conventional power generation methods for micro grid system. It also review the control system, protection system and energy storage methods used in micro grid system. Moreover, the article deals with the key issues present in generation and storage. Furthermore, new developments in the fields of micro grid are also addressed in this paper.

Microgrids are becoming increasingly attractive to consumers and as such in the future, a great number of them will be installed at consumer's sites. In this situation, conventional distribution networks that accept distributed generation connections may face serious difficulty when its control and protection functions become more complicated. This incurs a burden to the network operation and some technical limitations will appear when a great number of distributed generations are installed. One way of overcoming such problems, a micro grid system is formed to provide reliable electricity and heat delivering services by connecting distributed generations and loads together within a small area. A microgrid is usually connected to an electrical distribution network in an autonomous way and employs various distributed generation technologies such as micro-turbine, fuel cell, photovoltaic system together with energy storage devices such as battery, condenser and flywheel. Micro grids can cause several technical problems in its operation and control when operated as autonomous systems. This paper is a review of three technical challenges on micro grid with respect to voltage and frequency control, islanding and protection of microgrids.

IJRASET, 2021

In the present world where environmental issues are posing a great threat to the survival of mankind a better yet effective way of reducing carbon emissions and improving the environment by less usage of fossil fuels was suggested. This approach was called microgrid (MG). Renewable energy resources could be used effectively to produce electricity and can be easily integrated with the conventional grid. This paper elaborates on the basic concept of microgrid, and then describes the challenges and future prospects of the microgrid. Distribution generators along with energy storage devices and proper interfacing power electronic devices are used. Working on the basis of the type of microgrid is also discussed in this paper.

—The use of renewable energy source (RES) in meet the demand of electrical energy is getting into attention as solution of the problem a deficit of electrical energy. Application of RES in electricity generation system is done in a variety of configurations, among others in microgrid system. Implementation of microgrid systems provide many advantages both from the user and from the electric utility provider. Many microgrid development carried out in several countries, because microgrid offers many advantages, including better power quality and more environmentally friendly. Microgrid development concern in technology generation, microgrid architecture, power electronics, control systems, protection systems. This paper reviewing various technological developments related to microgrid system and case study about microgrid system development using grid tie inverter (GTI). Microgrid system can implemented using GTI, power transfer can occur from GTI to grid when GTI has power excess and grid supplying power to GTI when GTI power shortage. Keyword : microgrid, microgrid architecture, microgrid control and managemen, grid tie inverter

The use of renewable energy source (RES) in meet the demand of electrical energy is getting into attention as solution of the problem a deficit of electrical energy. Application of RES in electricity generation system is done in a variety of configurations, among others in microgrid system. Implementation of microgrid systems provide many advantages both from the user and from the electric utility provider.

– The ever increasing demand for energy and changes in climatic conditions that give rise to increased carbon gas in atmosphere in the past few decades have initiated the advancements in renewable energy technologies. However, integration of these distributed generations to the grid has made adverse impacts on the existing grid and its interconnected operation. A solution to this problem is Microgrid concept that will make the existing grid suitable for increased integration of renewable energy sources to it. Power quality issues and condition will decide whether the Microgrid is to be in grid connected mode or islanded mode. In either of the cases, control of Microgrid plays a vital role. Several researchers have presented various control strategies for Microgrid under different conditions. This paper presents a review all possible control techniques discussed in the literature for the Microgrid in both autonomous and grid interconnected operations.

IEEE Transactions on Industrial Electronics, 2000

Microgrids are becoming increasingly attractive to consumers and as such in the future, a great number of them will be installed at consumer’s sites. Micro grid system is formed to provide reliable electricity and heat delivering services by connecting distributed generations and loads together within a small area. Micro grids can cause several technical problems in its operation and control when operated as autonomous systems. This paper is a review of three technical challenges on micro grid with respect to voltage and frequency control, islanding and protection of microgrids. This paper is also a review of different topologies for operation of microgrids. The focus of the paper is centered around the encountered and foreseen issues, enabling technologies and economics for encouraging the deployment of microgrids in India