Modeling of glow discharge in dielectric barrier

Numerical calculations of spatio-temporal characteristics of the homogeneous dielectric barrier discharge (DBD) in pure helium have been performed by means of a one-dimensional fluid model. The influence of the elementary processes on the discharge behavior has been studied by variation of the corresponding rate constants. The simulation and the analytical interpretation have been carried out for two basic modes of the homogeneous barrier discharge. The specificity of the glow discharge is the development of a cathode region and a positive column during the breakdown, as well as the presence of quasi-neutral plasma in subsequent phases. The positive column occurs because the shielding of the external field by the plasma is not instantaneous. The dependence of the discharge behavior on the external parameters, such as, the amplitude and frequency of the applied voltage, discharge gap width and thickness of dielectric barriers has been analyzed

Microgrid Application in Algeria Saharian Remote Areas

This paper presents a model and simulation for the development of microgrids in remote areas of the Algerian Sahara, including micro power plants, photovoltaic panels, wind farms, diesel energy and storage facilities. The climate of the Algerian Sahara, located on both sides of a tropical region, is hot, sunny and arid. Daytime temperatures are very high and can exceed 50°C, while the thermal amplitude between day and night is often above 350 or 400°C. In addition, there are many microclimates that are characterised by very high wind speeds. This means that wind energy and photovoltaic energy are both widely appropriate in this field, especially if we assume that the distribution of the population is very dispersed. The creation of microgrids for consumption will be an interesting solution to provide energy to the local population. The microgrid is part of the electrical system and is very dynamic. Production and supply forecasts will lead to reshipment, demand and price effects on regional markets. These feedback effects must be modelled and understood to achieve a stable energy system based on renewable energy

Modeling of glow discharge in dielectric barrier

701-712Numerical calculations of spatio-temporal characteristics of the homogeneous dielectric barrier discharge (DBD) in pure helium have been performed by means of a one-dimensional fluid model. The influence of the elementary processes on the discharge behavior has been studied by variation of the corresponding rate constants. The simulation and the analytical interpretation have been carried out for two basic modes of the homogeneous barrier discharge. The specificity of the glow discharge is the development of a cathode region and a positive column during the breakdown, as well as the presence of quasi-neutral plasma in subsequent phases. The positive column occurs because the shielding of the external field by the plasma is not instantaneous. The dependence of the discharge behavior on the external parameters, such as, the amplitude and frequency of the applied voltage, discharge gap width and thickness of dielectric barriers has been analyzed

Control of Multi-Sources Energy PV/Fuel Cell and Battery Based Multi-Level Inverter for AC Load

The considered system was implemented in the Matlab/Simulink, the results show the effectiveness of the proposed method and can be realized with experimented setup. This work deals with the study of an electrical energy production system made up of three sources of energy: photovoltaic energy, a fuel cell and a battery. The optimization of this hybrid production system is ensured by the control of each part. The hybrid system chain also contains a multilevel inverter that improves the quality of energy injected into the alternating load and consequently reduces the harmonic rate. In order to optimize the power flow in the different parts of the production line, an energy management algorithm is developed in order to mitigate the fluctuations of the load. To analyze our approach, a prototype is modeled, simulated with Matlab / simulink and can be realized in an experimental test benc