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 Ultra-capacitor 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.
Highlights
Diesel generators are the major power supply to the remote societies
Simulink is used to develop the model of DC micro-grid with hybrid energy storing system and the examination of energy management system is discussed in this paper
Throughout non-autonomous mode, the PV panel operates under Maximum Power Point Tracking (MPPT) mode and the PEC is kept in ON state and dc link is supported by the ultra-capacitor
Summary
Diesel generators are the major power supply to the remote societies. Cost of the diesel is comparatively very expansive and unfavorable to the atmosphere it is results in great burden to the local economy. 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]. 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 [5]. Distributed Generation System used storage device is battery [6]-[7] It plays a vital role in islanded mode to maintain the grid stability and power balance [8]. Simulink is used to develop the model of DC micro-grid with hybrid energy storing system and the examination of energy management system is discussed in this paper
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