International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 07 Issue: 12 | Dec 2020 www.irjet.net p-ISSN: 2395-0072 © 2020, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 1040 ANALYSIS OF ENERGY MANAGEMENT IN MICRO-GRID WITH DISTRIBUTED GENERATION AND HYBRID ENERGY STORAGE SYSTEM R. Jegedeesh Kumar 1 , S. Nivedha 2 1 Assistant Professor, Dept. of Electrical and Electronics Engineering, Karpagam College of Engineering, Coimbatore, Tamil Nadu, India. 641032. 2 Assistant Professor, Dept. of Computer Science Engineering, Sri Shakthi Institute of Engineering and Technology, Coimbatore, Tamil Nadu, India. 641062. -----------------------------------------------------------------------***------------------------------------------------------------------------ Abstract - The Energy management in Micro-Grid system is one of the most irrefutable issues in micro grid technology development. The Micro grid energy system consists on non- conventional resources, unit with storage energy and islanded or grid connected mode of operating loads. This tabloid presents a Micro-Grid energy management system for distributed generation connected MG with hybrid energy storage system. Hybrid energy storage system is achieved by combining the Ultracapacitor and battery storage. The proposed energy management system in micro grid with hybrid energy storage system follows the two techniques, such as forecasting and optimization. Prediction of solar irradiance, load demand and temperature are coming under the Forecasting technique. For the economical operation in a grid connected micro grid the optimal day-ahead scheduling of power generation and load demand is performed by the optimization technique. The MG will absorb or deliver the prespecified amount of power. In this method MG connected to the power grid in large numbers are integrated. The main intension of the energy management system is power balancing in the micro grid. The MATLAB/Simulink environment has been used to analyzing the effect of Energy management in micro-gird with hybrid energy storage system. The simulation results will show the effective and stoutness of the proposed energy management method. Keywords: Energy Management, Micro-grid, Distributed Generation, Battery and Ultracapacitor. I. INTRODUCTION Diesel generators are the major power supply to the remote societies. Cost of the diesel is comparatively very expansive and unfavorable to the atmosphere hence it is results in great burden to the local economy. The only one alternative solution for the isolated micro grid is renewable source. In growing renewable energy technology and the minimum operational cost, the photovoltaic energy source is better than the other renewable sources. Due to the intermittency and uncertainty characteristics on non-conventional source energy fails to withstand the reliability of the standalone power supply. To overcome these characteristics issues in renewable sources the battery backup and other energy storage systems are added to the MG [1]. Thus, the distribution generation application has gained impetus. The implementation of distribution generations to the utility grid provides the additional advantages to the micro grid concept [9]. The micro grid is coming under the small- scale power grid, and consists of an association of DG’s and loads [4]. Micro grids follow the two different types of operation methods. Such as non-autonomous method and another one is autonomous method. In autonomous method the utility grid power is not exchanged with the MG and is operated in islanded mode. In non-autonomous method the utility grid power is exchanged with MG [10]. The bus voltage value is declared by utility grid in non- autonomous method meanwhile the bus voltage value in autonomous method is depends upon the subsystem of DG. In both function modes of the system to maintain the seamless operation and algorithm for efficient control to the power balance, taking into account the both modes of power grid operation characteristics are required [11]. The inefficient power exchange determines the operation mode’s advantages. Hence renewable sources in large numbers are prevented hence it requires different energy management techniques. As the renewable sources are results unpredictable in nature then the storage element is necessary to maintain the efficient power exchange. In renewable energy source energy management system, the popularly used storage device is battery [5]-[6]. It plays a vital role in islanded mode to maintain the grid stability and power balance [8]. Energy storage in ultracapacitor is in the form of an electric field, Instead of in chemical reactions such as batteries. The charging and discharging are faster than the batteries due to the high-power density in ultracapacitor. Smooth the flow of power and load shifting can be done by storage devices [7]. The main intention of this tabloid is increasing the micro-grid DC's depth of penetration. For this purpose, an efficient method of energy management is considered for a DC micro-grid, for a preset amount of power to be absorbed or delivered by the micro grid. Hybrid ultracapacitor /battery energy storage system is considered in Energy management