Asmae CHAKIR - Academia.edu (original) (raw)

Papers by Asmae CHAKIR

2022 International Conference on Microelectronics (ICM)

TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES21Gr

In this paper, we propose a new hybrid architecture of a renewable PV-Wind-Battery hybrid system.... more In this paper, we propose a new hybrid architecture of a renewable PV-Wind-Battery hybrid system. This architecture will be connected to the grid to alternatively supply a Moroccan house in a smart city environment. The energy management source-side is modeled according to a linear programming optimization with an objective function that aims to minimize the energy purchased from the utility grid and to ensure the energy balance of the HRES-HOME system. Otherwise, the demand side was optimized with a mixed integer GA programming based on smart home loads categorization. This will ensure an autonomous internal management system and a grid interconnection just to inject the surplus or during critical shortages after demand side management. The resolution of this program has been realized with MATLAB platform minimization toolbox. The simulation of the results proved the accuracy of the proposed methodology. Effectively, 82.42% was well reduced with the use of the hybrid system and linear optimization system. A study on the categorization of smart home loads revealed that for a house with 25% of the energy consumed is devoted to controllable loads, 75% of the rest should be assigned to reducible controllable loads.

2019 7th International Renewable and Sustainable Energy Conference (IRSEC)

Countries all around the world, especially those with significant renewable potential, are beginn... more Countries all around the world, especially those with significant renewable potential, are beginning to adopt strict policies to increase the share of renewable energy use in order to strengthen their own energy mix. This leads researchers to think of appropriate solutions for an ease integration of renewable energies into electricity sector and to overcome its major obstacle, which is none other than intermittency. In this context, we defend our proposed architecture based on a grid-connected PV-battery hybrid system. Our proposal was tested under real meteorological solar conditions for a typical year using TRNSYS. Its performance evaluation was carried out using statistical analysis via Minitab and shows that the system could be in deficit with a frequency less than 10%• That means that the proposed hybrid system able to meet the demand for its 90% energy states. Such a statistical analysis of the hybrid system energy states let us deduce influence of stochastic parameters on the system size, architecture and energy management.

The Proceedings of the International Conference on Electrical Systems & Automation, 2022

2018 30th International Conference on Microelectronics (ICM), 2018

The use of renewable energies has become important for their beneficial effects on the environmen... more The use of renewable energies has become important for their beneficial effects on the environment. In this category we find photovoltaic (PV) energy, taking a considerable share of use due to the large availability of the solar potential, but its main obstacle is the extraction of maximum power. In fact, a photovoltaic panel supplying a load, isn’t necessarily working at the point corresponds to the peak of the characteristic (V, P) of the system. To fix this problem is required to use power electronics, via a DC / DC converter controlled by a maximum power point tracking (MPPT) algorithm. In the literature, several algorithms are proposed that differ by the number of inputs used, the response time and also by their accuracy. In this work, we tested a photovoltaic system feeding a traditional Moroccan house, by four methods of MPPT, with four degree of complexity, namely: open circuit voltage fraction, Perturb & observe, the incremental conductance, and the MPPT algorithm using fuzzy logic, with the use of a boost chopper that keeps the DC bus voltage constant. The results are analyzed, and they show that perturb and observe is the good algorithm for a low cost application and the fuzzy logic is suitable for more accuracy.

Advances on Smart and Soft Computing, 2021

Innovations in Smart Cities Applications Edition 3, 2020

International Journal of Renewable Energy Technology, 2021

Proceedings of the 4th International Conference on Smart City Applications, 2019

Most of countries facing its limited energy sources challenge have decided to take the step towar... more Most of countries facing its limited energy sources challenge have decided to take the step towards smart grid while relying on distributed generation by the use of hybrid renewable energy system. Besides the development of the design of the hybrid system and its configuration, there is the topic of power management which responds especially to the renewable intermittency issue. Indeed, our work is strongly focused on optimal energy management for residential loads; which plays a very important role for smart houses that will be the basis of a smart city in the near future. To do so, a PV-Wind-Battery hybrid system is taken as a primary source enabling the house to satisfy its own energy needs while considering the grid only as a storage facility with infinite capacity. To connect the energy sources cited above, a hybrid architecture is proposed, and the different electrical switches mentioned on it are efficiently conducted by our proposed energy management system. The results showed that the autonomy of the system is ensured by injecting the surplus energy during the day and recovering it at night.

Journal of Renewable and Sustainable Energy, 2020

The intermittency of single renewable energy sources affects significantly their reliability, and... more The intermittency of single renewable energy sources affects significantly their reliability, and hence, hybrid renewable energy systems (HRESs) are introduced. HRESs are notably used to meet the needs of residential loads. Nevertheless, power surplus and shortages still represent issues that must be handled by energy management systems. In this paper, a novel method for optimal energy management of a grid connected micro-grid composed of five smart Moroccan prosumers is presented. The proposed energy management strategy is organized using three levels, namely, HRES level, load-scheduling level, and communication-sharing level between HRESs. The first two levels of energy management are processed at the local level, i.e., inside each smart home. For the third level, our paper demonstrates the feasibility of interactions and communication between the five different houses interconnected using an optimized infrastructure topology as a smart neighborhood grid. Each of these houses is empowered by their own hybrid renewable energy system made of possible system hybridization based on PV (Photovoltaic), wind turbine, and battery storage system. This helps each house to manage its surplus and to deal with energy shortage through the proposed multi-level system's energy management algorithm. The application of information and communication technologies enables the set of smart homes connected in a micro-grid framework to contribute to the emergence of the concept of the internet of sustainable green things. Simulations conducted by the MATLAB platform validate the proposed methodology, which relies on micro-grid surplus injection and neighborhood storage during extreme surplus, else load dynamics thereafter micro-grid-injected energy recovering during hybrid energy deficit. The proposed system manages the energy produced by HRESs and reduces the energy demanded by the utility grid using the proposed topology that connects houses and ensures interactions between the micro-grid and the utility. The results show that the frequency of micro-grid deficiency was significantly reduced due to the established micro-grid with the five houses according to the proposed topology and the developed multi-level management system.

International Review of Automatic Control (IREACO), 2020

Currently, Morocco, as other country with no own oil resources, is facing a double challenging ta... more Currently, Morocco, as other country with no own oil resources, is facing a double challenging task, which is meeting the increasing electricity demand and keeping energy import level under control. The main solution for these countries is to move towards renewable energy sources if its potential allows it. Wind energy is one of the renewable sources considered for large-scale production and recently for small-scale plant due to the emergence notion of distributed energy and Hybrid Renewable Production Systems. However, this type of generator is known for its design complexity as well as its control system and the adequacy of generator topology for a certain application. For this purpose, our paper highlights the generators used most frequently in wind conversion and provides an overview towards wind power conversion topologies. Furthermore, the wind conversion system of a three-blade horizontal axis permanent magnet synchronous generator wind turbine, vector control and maximum power extraction using Particle Swarm Optimization combined to linear control applied to are also investigated and simulated in MATLAB/SIMULINK in this work.

Energy Reports, 2019

The increase demand for electricity and the non-renewable nature of fossil energy makes the move ... more The increase demand for electricity and the non-renewable nature of fossil energy makes the move towards renewable energies required. However, the common problem of renewable sources, which is the intermittence, is overcome by the hybridization of complementary sources. Thus, whenever the load demand is not fully covered by the primary source, the second one will absolutely support it. Furthermore, the production, the interaction with the grid and the storage system must be managed by the grid-connected hybrid renewable energy system, which is the main objective of this paper. Indeed, we propose a new system of a grid-connected PV-battery, which can manage its energy flows via an optimal management algorithm. The DC bus source connection topology in our proposed hybrid architecture tackles the synchronization issues between sources when the load is powered. We consider in this work that choosing a battery discharge and charge limiting power provides an extension of the battery life. On the other hand, we simulated the dynamic behavior of the architecture's various components according to their mathematical modeling. Following this, an energy management algorithm was proposed, and simulated using MATLAB/SIMULINK to serve the load. The results have shown that the load was served in all cases, taking into account the electrical behavior of the inhabitants as well as the weather changes on a typical day. Indeed, the load was served either by instant solar production between sunrise and sunset, or the recovery from sunset to 10pm, which could be a stored or injected energy without exceeding the 1000W per hour. c

Communications in computer and information science, 2022