12 research outputs found
dSPACE Implementation for a Fuzzy Logic Voltage Control using a Self-Excited Induction Generator and a Voltage Source Inverter
The present work describes the analysis of a control scheme for keeping the RMS voltage output constant, the system is supplying by a self-excited induction generator with variable speed and load. A comparison is examined between simulation and experimental results using dSPACE board. the results are provided to verify the effectiveness of this approach and gives very high performance
Direct power control of three-phase PWM AC/DC converter based on intelligent approach with dc-bus voltage regulation using sliding mode controller
Direct power control of three-phase PWM AC/DC converter based on intelligent approach with dc-bus voltage regulation using sliding mode controller
Control Strategy Scheme for Consistent Power Flow Control in Meshed DC Micro-grids
International audienceRecently, DC Micro-grids have been a focus of numerous researches and some industrial deployments are starting [1]. The interest is due to several advantages in comparison to AC Micro-grids in terms of efficiency, minimum number of devices, no need for frequency/phase control, modularity and reliability. Moreover, it enables an easy integration of renewable energy resources, particularly photovoltaic ones. This paper targets meshed DC Micro-grid while most of literature papers concern radial DC Micro-grids. It will bring several remarkable benefits: redundancy, better utilization of installed converters, flexible configuration, enhanced system reliability and availability especially in case of line faults [2]. In meshed DC grids, the control strategy of current or power becomes a critical issue particularly if a modular and generic solution is researched. The paper focuses on the use of smart-nodes controlling the power flow in the grid. The proposed control strategy is presented and some simulation results are presented. Some reduce scale tests are presented based on a DSPACE system. (12) Control Strategy Scheme for Consistent Power Flow Control in Meshed DC Micro-grids. Available from: https://www.researchgate.net/publication/316437705_Control_Strategy_Scheme_for_Consistent_Power_Flow_Control_in_Meshed_DC_Micro-grids [accessed May 16 2018]
Advanced Direct Power Control for Grid-connected Distribution Generation System Based on Fuzzy Logic and Artificial Neural Networks Techniques
This paper proposes an improvement of the direct power control (DPC) scheme of a grid connected three phase voltage source inverter based on artificial neural networks (ANN) and fuzzy logic (FL) techniques for the renewable energy applications. This advanced control strategy is based on two intelligent operations, the first one is the replacement of the conventional switching table of a three phase voltage source inverter (VSI) by a selector based on artificial neural networks approach, and the second one is the replacement of the hysteresis comparators by fuzzy logic controllers for the instantaneous active and reactive power errors. These operations enable to reduce the power ripples, the harmonic disturbances and increase the response time period of the system. Finally, the simulation results were obtained by Matlab/Simulink environment, under a unity power factor (UPF). These results verify the transient performances, the validity and the efficiency of the proposed DPC scheme
Advanced Control of Wind Electric Pumping System for Isolated Areas Application
<p>The supply water in remote areas of windy region is one of most attractive application of wind energy conversion .This paper proposes an advanced controller suitable for wind-electric pump in isolated applications in order to have a desired debit from variation of reference speed of the pump also the control scheme of DC voltage of SIEG for feed the pump are presented under step change in wind speed. The simulation results showed a good performance of the global proposed control system.</p
Control Strategy and Impact of Meshed DC Micro-grid in the Middle East
International audienc
Microréseaux DC : avantages des réseaux maillés
International audienceL'alimentation des équipements dans le tertiairepar un microréseau DC permet une meilleure disponibilité del'énergie avec moins de pertes. Dans cette optique, lesmicroréseaux DC présentent de nombreux avantages lorsqu’ilssont maillés. Le papier présente une architecture basée sur dessmart-nodes et la stratégie de contrôle des convertisseursassociés. Les premiers résultats seront présentés