Séminaire : Energies Renouvelables et leurs applications
- Introduction
- Notion de Smart grids
- Intégration de l’énergie solaire photovoltaïque
- Intégration de l’énergie éolienne
- Quelques projets de recherche applicative
- Références et Publications
Étiquette : pv
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Eco-design optimisation of an autonomous hybrid wind–photovoltaic system with battery storage
RÉSUMÉ / ABSTRACT :
In this study, a newapproach to design an autonomous hybrid wind–photovoltaic (PV)-batteries system is presented in order to assist the designers to take into consideration both the economic and ecological aspects. Primary embodied energy (EE) has been introduced as a new criterion for hybrid systems, designing with the objective to minimise loss of power supply probability (LPSP). For a location, meteorological and load data have been collected and assessed. Then, modelling and primary energy analysis have been achieved for all components of the hybrid system. Finally, an optimal configuration has been carried out using a dynamic model and applying two different algorithms with single and multi-objective optimisation. The methodology has been performed successfully for the sizing of a wind–PV-batteries system to supply at least 95% of the yearly total electric demand of a residential house. The simulation results show that the optimal configuration meets the desired system reliability requirements (LPSP ,5%) with the lowest EE. A life cycle cost analysis has been established at the end of the study to demonstrate the importance of economic considerations.
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Emulation of a hybrid PV-Wind-Battery system
RÉSUMÉ / ABSTRACT :
This paper is focused on the design and the implementation of a hybrid PV-wind power system with batteries. It aims to emulate the behavior of a hybrid power system in order to face load consumption variations. Final system includes relevant contributions such as quality of emulator (a large number of parameters are considered); capacity to study various impacts simultaneously, a fast dynamic and a set of experimental tests that have been achieved and validated with a test bench.
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Optimisation et supervision des systèmes énergétiques complexes intégrant des sources renouvelables
RÉSUMÉ / ABSTRACT :
Afin de diminuer le pourcentage d’utilisation des énergies traditionnelles dans la consommation globale, il convient de lever les difficultés liées à l’emploi des énergies propres.
L’une de ces difficultés en est l’optimisation de la combinaison de plusieurs énergies (comme par exemple le soleil, le vent, …) et l’utilisation des dispositifs de stockage pour pallier au caractère intermittent de ces énergies.
On peut réinjecter l’énergie provenant des sources renouvelables directement sur le réseau électrique, en prévoyant, soit un dispositif de stockage (des batteries par exemple), soit un système de gestion intelligente afin de mettre en adéquation la production avec l’usage de l’énergie.
C’est dans ce contexte que se situe cette présentation: concevoir et optimiser des système multi-sources pour satisfaire aux besoins en électricité. -
Modeling and simulation of a photovoltaic system: An advanced synthetic study
RÉSUMÉ / ABSTRACT :
This paper focuses on modeling and simulation of a buck converter based on a PV standalone system. This advanced synthetic study includes PV generator modeling with parameters identification, an improved P&O (Perturb and Observe) algorithm with adaptive increment step and a detailed approach of DC-DC converter modeling. A thorough method is used to determine parameters for PI current controller. The set was used to simulate a whole photovoltaic conversion chain under Matlab/Simulink environment. A special focus has been dedicated to the influence of solar irradiation variations on converter dynamic and behavior as a range of PV current 0-8 A was considered. Simulation results confirm stability, accuracy and speed response of synthesized regulator and MPPT algorithm employed. Dynamic analyses show that the more restricting control concerns low values of current (low irradiation). This work will be useful for PhD students and researchers who need an effective and straightforward way to model and simulate photovoltaic systems.