Abstract
This paper proposes an energy management strategy for hybrid power system HPS which is composed of a photovoltaic generator, wind turbine, fuel cell generator and NaS battery storage device, feeding a type house. This strategy is based on Fuzzy Logic Control technique. The hybrid power system is sized to provide the energy demand of the inhabitants of the house and if there is an extra power generation, it would be sold to the grid. Using Simulink, we develop the different scenarios in order to use the fuel cell or battery during critical periods. The methodology developed was applied under the climatic conditions (wind speed, solar irradiation and temperature) measured at a site located in the northeast of Tunisia.
Highlights
The production and the consumption of electricity develop in a very strong way, in the last years. This growth rate of the world demand is explained by the technological development and the inhabitants' standards of living
The hybrid power system (HPS) is a set of photovoltaic (PV) generator, wind turbines (WT), Fuel Cell generator, storage batteries, and a Grid connection
A hybrid renewable energy system is presented as an alternative source for a typical house in North-west of Tunisia
Summary
The production and the consumption of electricity develop in a very strong way, in the last years This growth rate of the world demand is explained by the technological development and the inhabitants' standards of living. To avoid the problems of discontinuity of the production due to the climate change, it is necessary to add another source of energy such as a fuel cell. We propose an energy management strategy (EMS) based on fuzzy logic control of the hybrid power system (HPS). The fuzzy memberships and rules surface of the developed controller show the efficiency of the proposed management strategy in minimizing power production costs and choosing the perfect system configuration based on available power and battery state which is proved by the obtained results
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