Until today, the majority of isolated communities in Canada use diesel generators, which is a fairly expensive and polluting solution, to meet their electricity needs. Despite its undeniable disadvantages, this solution has been the most used for several years given its reliability and availability. New solution have been studied and proposed that consist of integrating renewable energy sources (wind, solar, ...) with diesel generators which would have a positive impact on the cost of electricity production and the rate of emission of greenhouse gases. However, this solution presents several challenges in terms of design as well as the control and efficient management of energy. In this context, the system studied in this work consists of a diesel generator, a wind turbine, a battery and a hydrogen energy storage system consisting of a fuel cell, an electrolyser and a hydrogen tank. Centralized control has been used in this work to achieve optimal energy management while controlling the voltage and frequency of the system. A new centralized energy control strategy based on dynamic programming has been proposed for the system. The main purpose of this strategy is to extend the battery life of the system while reducing the use of diesel in the system. The power references are then sent to the local controllers of the diesel generator, the fuel cell Boost converter and the electrolyser Buck converter for the extraction of the power. Extraction of the maximum power of the variable speed wind turbine is ensured through a MPPT method allowing maximum penetration of the wind turbine into the system. The Buck-Boost converter associated with the battery ensures regulation of the DC bus. A new control has been proposed for the inverter of the system based on the control by sliding mode with time delay estimation, control is distinguished by its capacity to control the system even with the presence of the uncertainties in the parameters of the system thus allowing the operation of the system under several operating points. The performance of the proposed system has been tested and validated using MATLAB / SIMULINK.
| Date | 24 Sept 2019 |
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| Original language | French |
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| Awarding Institution | - École de technologie supérieure
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| Supervisor | Ambrish Chandra (Supervisor) & Kodjo Agbossou (Co-supervisor) |
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Laraki, M.-H. (Author),
Chandra (Supervisor) & Agbossou (Co-supervisor),
24 Sept 2019Student thesis: Master's thesis › Master in Engineering: Engineering