Energy management system employing harmony search algorithm for hybrid cogeneration

Cogeneration is one of the microgrid implementation that is able to provide both electricity and heat energy simultaneously. Thus, it have been variously utilized in many energy generation plant including the commercial buildings like airport, hospital and hotel. However, a sophisticated control system is needed to ensure the objective of power flow in meeting the load requirement can be achieved. Energy management system which laid on the top of control hierarchy seems to have the ability to control and manage the energy flow in many type of microgrid especially cogeneration system. This presented article discuss a method of energy management system for the hybrid cogeneration system using the optimization approach. The objective of this proposed energy management system based optimization is to reduce the operational cost of hybrid cogeneration system that consist of PEMFC, photovoltaic and battery. Considering the parameters and variables such as weather conditions, load profile and fuel price, the optimization formulation is solved using the Harmony Search Algorithm which subjected to recognice constraints. Results of this study is leading to give the look up table which represent the generated power of each energy resources in 24 hours interval time. The simulation and analysis is performed in MATLAB/SIMULINK environment.