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Synchronization is an important issue in the control of grid connected inverters and most of the algorithms use the phase measurement of the component of the voltage of the grid with the classical corrector PI. In this article, we use a new synchronization of the phase-locked loop (PLL) with a PI controller commissioned by the fuzzy logic. The gains of the PI controller are changed using the algorithm...
this paper develops an adaptive control to extract the maximum power from the photovoltaic generator. A new algorithm is developed based on the Modified Model Reference Adaptive Control (MMRAC) combined with Incremental Conductance algorithm (IC), and Lyapunov method to obtain the control law to achieve fastly the Maximum Power Point (MPP) under the variation of temperature and the irradiance. This...
The self-consumption is a hot topic, it relates to both the energy management and the control of energy expenses and also produce renewable energy. However, the self-consumption present constraints related to variations in the solar production and the load curve of the consumer. In order to promote the use of renewable energies, contribute to the reduction of gas CO2 emissions, protect the environment...
In this work, we have developed a solar tracking system with two axes. This system is operated in a small-scale solar tower containing a field of heliostats with an area of 120 m2 containing 101 mirrors. Each mirror has a dimension of 40×40 cm2 and a height of 36 cm. This system allows concentrating solar energy at a fixed target with a height of 2 m. The system realized consists of two main parts:...
In this paper, we investigate the simulation of natural convection heat transfer of a power electronic component mounted on a heat sink. The heat dissipation is ensured by conduction from the base plate to a heat sink through the fins, and subsequently to the ambient air by convection. This work represents a comparative study of four heat sinks configurations having fins of various profiles adapted...
The aim of this article is to build a comprehensive thermal model of the power IGBT modules in 6 kVA solar inverter. The thermal model is defined in order to predict the junction temperature, using different values of power dissipated. The thermal model is developed by using a new RC model which is implemented in SIMULINK/M. The results of the RC network are comparing with the 3D Finite Element Simulation...
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