Modeling and optimal energy management of a micro-hybridgrid, equipped with a renewable energy source, a conventional source, and a cogeneration unit.

Abstract

Our objective through this work is to have a cogeneration system integrated into a hybrid production system, coupled to the public grid and equipped with an ecological production system (photovoltaic) with a storage system (accumulator), and to establish rules and tools for optimizing energy management as well as the dimensioning of an energy system. The optimizations an will be carried out on the basis of consumption and production data. The optimization criterion will be economic with a view to minimizing the total cost of the system to meet the energy demand of a typical profile during a basic test period. However, “optimal” sizing requires coordination with effective energy management to identify the optimum power references, the minimum and maximum powers provided by each source and to estimate the depth of discharge of the storage element. The parts presented concern the dimensioning and management of energy transfers on the basis of consumption data and tariffs are: - Establishing reliable and adapted electrical models of the subsystems. In order to be able to determine, at each moment, for a given consumption and a given deposit, the power that the production systems can provide. These models must be sufficiently accurate to account for energy transfers and fast enough to allow calculations over long periods of time. - Establish economic models of the different modules of the system. Climate deposits, consumption profiles, fuel consumption, energy efficiency of the systems. - Finally, carry out economic and energy optimization studies of the energy system using micro-grid management algorithms based on different configurations of the system © JES 2020. on-line: journal.esrgroups.org/jes.