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Coupling water desalination processes with Renewable Energy Sources (RESs) can be a sustainable and ecological approach to the global water/energy supply crisis. In this regard, small-scale standalone battery-less Brackish Water Reverse Osmosis (BWRO) desalination system powered by a hybrid PV/Wind RES is expected to meet freshwater demand of a small isolated community. One particularity of the proposed...
In this paper, the authors investigate a robust Integrated Optimal Design (IOD) devoted to a passive wind turbine system with electrochemical storage bank: this stand alone system is dedicated to rural electrification. The aim of the IOD is to find the optimal combination and sizing among a set of system components that fulfils system requirements with the lowest system Total Cost of Ownership (TCO)...
In this paper, a study of a compact microstrip antenna based on composite right/left-handed (CRLH) metamaterial transmission line is presented. The physical size and operational frequencies of the antenna are determined by the CRLH unit cell. The antenna exhibits monopolar radiation at its fundamental mode of resonant frequency. It is well known that the composite right/left-handed (CRLH) transmission...
In this paper, the authors report the development of a Systemic Optimization Process (SOP) devoted to a passive wind turbine system with electrochemical storage bank. Aim of the SOP is to find the optimal combination and sizing among sets of system components, that meets the desired system requirements; with the lowest system owning cost. The passive wind system associated to the storage bank interacts...
This paper aims at the theoretical and experimental analysis of control and energy management of a standalone hybrid renewable energy system comprising wind and photovoltaic sources with battery storage. This system is characterized by a Very Low Voltage (VLV) node connection coupled to DC loads. An average model of a hybrid wind-photovoltaic generating system is proposed in this paper. It is shown...
The aim of this work is to study sliding mode observer applied to mono-inverter bi-motors system for railway traction application. Studied system composed of two induction motors (IM) fed by one voltage source inverter (VSI) which controlled by Mean Rotor Field Oriented Control (MRFOC). Both IM are coupled through common loads which complicate this study and introduce perturbations of all system;...
This paper gives an estimation of the wind power that potentially could be generated by wind farms in the El-Kef governorate, a north-western region of Tunisia. The results of this investigation are based on wind speed measurements carried out by the local cement factory Oum ELKelil Cement (CIOK), one of the first plants in Tunisia which intends to set up its own wind farm. According to the collected...
In this paper, an original optimization method to jointly determine a reduced study term and an optimum battery sizing is investigated. This storage device is used to connect a passive wind turbine system with a stand alone network. A Weibull probability density function is used to generate different wind speed data. The passive wind system is composed of a wind turbine, a permanent magnet synchronous...
A flywheel energy storage system (FESS) is associated to wind turbine (WT) to increase its penetration rate into the grid and to improve its contribution to the ancillary services. In this paper, the authors investigated a FESS associated to PMSM-wind turbine connected to the grid via a three-phase PWM inverter. The FESS is controlled by a FOC (flux oriented control) strategy cascaded with an external...
A brackish water Reverse Osmosis (BWRO) desalination unit is studied in this paper. This unit is designed to be fed by a renewable energy based on hybrid source (wind and photovoltaic: hybrid system) with/without storage battery. The energy will be directly transmitted to the motos-pump of the BWRO process. An appropriate energy management starts from the understanding of the BWRO desalination process...
This paper presents a hybrid renewable energy system integrating a small wind turbine, photovoltaic panel coupled to a permanent exchange membrane fuel cell (PEMFC). The interconnection of the fuel cell with finite power source is going to improve the energizing performances of the system by solving the problems of fluctuation of renewable wind and photovoltaic powers sources.
This paper presents a railway traction system characterized by strong electrical and mechanical interactions. The authors formulate the mechanical model to analyse system behaviour during loss wheel-rail adherence. Mean and Master-Slave controls with two observation strategies are developed. Different simulation results are given and illustrate the railway traction system operations.
In this paper, we have designed a micro-generation energy system obtained by interconnecting a wind turbine with a photovoltaic generator and characterized by very low voltage (VLV) node coupled to a battery storage and DC loads. The control strategies of the sources are based on power, voltage and current control with maximum power point tracking (MPPT). Experiments based on a physical emulator of...
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