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Efficient Choice of a Multilevel Inverter for Integration on a Hybrid Wind-Solar Power Station

Journal of Power and Energy Engineering 2015年第9期3卷 44-58页

作者： Tajeddine Khalili Abdelhadi Raihani Hassan Ouajji Omar Bouattane Fouad Amri lab. ssdia ENSET Mohammédia Hassan II University of Casablanca Morocco

DC/AC converters are very important components that have to be chosen efficiently for each type of power station. In this article, we present in details, a comparison between three different architectures of multilevel inverters, the flying capacitor multilevel inverter (FCMLI), the diode clamped multilevel inverter (DCMLI), and the cascaded H-bridge multilevel inverter (CHMLI). Thus the comparison is focused on the output voltage quality, the complexity of the power circuits, the cost of implementation, and the influence on a power bank inside the renewable power station. We also investigate trough simulation the efficient number of levels and suitable characteristics for the CHMLI that showed the most promising performance. The study uses Matlab.Simulink platform as a tool of simulation, and aim to choose the most qualified inverter, for a potential insertion on a hybrid renewable energy platform (wind-solar). In all the simulations we use the same PWM control type (SPWM).

关键词： Multilevel Inverters FCMLI DCMLI CHMLI Hybrid Power Station SPWM Power Bank

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Toward an Evolutionary Multi-Criteria Model for the Analysis and Estimation of Wind Potential

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Journal of Power and Energy Engineering 2015年第11期3卷 14-28页

作者： Fouad Amri Omar Bouattane Tajeddine Khalili Abdelhadi Raihani Abdelkader Bifadene lab.ssdia ENSET Mohammedia Hassan II University of Casablanca Casablanca Morocco

The main objective of this paper is to model, analyze and estimate wind energy at East region of Mohammedia and other Moroccan sites. The basic data were taken from meteorological records of each region. In this context, this work is focused on a methodological approach of a decision support system for optimal choice of wind turbine using multi-criteria model that takes into consideration both the accurate Weibull distribution in the area (wind speed-ground roughness) and the technical parameters of the wind turbine. In this approach we realized an adapted modeling of each element of the turbine (rotor-multiplier-generator). This article also offers a way to forecast wind speed in a region where wind data are not accessible using an artificial neural network.

关键词： Wind Potential Meteorological Records Energy Production Weibull Statistical Distribution

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An Efficient Electric Charge Transfer Device for Intelligent Storage Units

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Open Journal of Energy Efficiency 2014年第3期3卷 50-63页

作者： Ahmed Rebbani Omar Bouattane Lhoucine Bahatti Mimoun Zazoui lab.ssdia ENSET Hassan II University Mohammedia Morocco lab.PMCER FST Hassan II University Mohammedia Morocco

This paper deals with a dynamic analysis of an optimal technique used for direct electrical energy storage, where a concept of charge transfer between different electric storage units is used. This analysis is developed to seek for efficient and real time conditions to maintain optimal behavior for charge recovery from intermittent power sources in the field of renewable energies like solar and wind. The proposed analysis leads to elab.rating a set of interesting states and conditions that allows the user to choose effective configuration parameters that lead to an optimal or near optimal charge transfer device. The proposed device is designed to ensure an optimal transfer of electric charges. It must be self-configured to retrieve and transfer the maximum energy from the sources to the storage units (Super-capacitors, batteries…). Some interesting results, by simulating the proposed device, are presented to show how this optimization problem can be viewed as a combinatorial one, where the optimization algorithm is asked to find the suitable switching combination to configure the device to be closest to the optimal charge recovery.

关键词： Energy Storage Charge Transfer Renewable Energy Photovoltaic Supercapacitor Switching

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