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International Journal of Engineering & Technology, 7 (2.23) (2018) 450-454 International Journal of Engineering & Technology Website: www.sciencepubco.com/index.php/IJET Research paper A Comprehensive Review on Energy Management Strategies in Hybrid Renewable Energy System Ch.Laxmi 1 *, Dr.M.Narendra Kumar 2 , Dr.Sushant Kumar Mandal 3 1 Research Scholar, Centurion University Of Technology And Management,Odisha,India 2 Professor,St.Peters Engineering College,Telangana,India 3 Professor, Centurion University Of Technology And Management,Odisha,India *Corresponding Author E-Mail:Laxmichanumalla@Gmail.Com Abstract The diffusion of renewable sources of energy has been increased because they reduce the environmental influence and meet the increase in demand of energy. The key feature of the renewable source of energy is their changeability and irregularity. These draw backs are overcome by combining the non-conventional sources through storage and back up. However the incorporation of renewable sources of energy makes the system more complex in respect of energy sharing, control and analysis. The main objectives of energy management configuration are to ensure the maximum exploitation of renewable sources, continues power supply to the load, lessen the rate of energy production and increase the steadiness of the system. To accomplish these purposes efficient and fast control techniques are required which are proficient of handling information perceptively and captivating acute decisions vigorously inside the operative limitations. This paper presents an explicit review of energy management approaches currently existing and those now in research for the smooth process of hybrid system with renewable sources. Keywords: Fuzzy, HOMER, linear programming, neural network. 1. Introduction The ideal energy consumption to the extreme degree is possible by effective energy monitoring. And it includes operation and sched- uling of energy making and consumption. The minimum social benefits and maximum social benefits are achieved by energy monitoring system. The chief goal of energy controlling is to pro- duce a appropriate set of operation points for renewable sources of energy in such a manner that cost effectively optimized power dispatch is maintained to satisfy a certain level of demand .The objective and application of an energy control system are energy usage analysis, energy cost allocation, electrical distribution bene- fit management and demand response. The conservative method- ologies for controlling hybrid power systems, like PI controller are slow, instable and not applicable for the system by change in weather conditions. This directed to the advancement of more intelligent techniques which are potential of handling all the dy- namic changes. This paper analyses the energy management schemes used in renewable power systems, special attention to- wards the isolated hybrid renewable sources of energy and sys- tems connected with the grid is attempted. Number of energy monitoring approaches are proposed and described in the works proposed such as AI tech- niques, Fuzzy logic, optimal control approaches and model based predictive controllers. S.M.Zaharee, M.Khalaji Assadi and R.Saidur [1], appraised different optimization methods using arti- ficial intelligence in hybrid energy arrangements, like genetic algorithms, simulated annealing also particle swarm optimization. Erdinc O and Uzunoglu M [2], interpreted various approaches for Optimum Scheme of hybrid system with renewable sources of energy. Wang and Nehrir [3], projected a “strategy for the energy observation in hybrid system containing wind, photovoltaic and FC which linked by ac load. Ahmed et al. [4], deliberated power fluctuation in photovoltaic, wind and FC through power strategic management. R. Carapellucci, L. Giordano [5], established gen- eration of energy in island mode considering non-conventional systems along with backup. Sanjit Kumar Kaper and Niraj Kumar Choudhary [6], presented an “extensive assessment of power management, stability concerns for micro grid and addressed the prominent issues of power management”. Upadhyay S, Sharma MP [7], appraised the methodologies used for sizing and monitor- ing in an energy system with renewable arrangement. 2. Hybrid Energy System Hybrid renewable systems help to mend power quality and in- crease system reliability. The need of integrating different renew- able sources of energy deploying appropriate power management stratagem is required because of certain challenges comprises erratically fluctuating renewable sources of energy like wind speed, solar radiation partial period of energy storing devices and high initial installation cost, which causes the fluctuations in source and load power The hybrid system shown in the fig. 1 con- sists PV, wind generator, fuel cell, electrolyzer and battery. The photovoltaic system supplies the load, when load demand decreas- es the superfluous energy is consumed by the electrolyzer. The process of is carried out in electrolyzer where the water gets splits into O 2 and Hydrogen. The fuel cell input is obtained through the stored hydrogen. The battery uses the additional energy.