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In Grid-Connected PV system should not be limited injecting the active power into the grid. However, it must be able to absorb or to generate sufficient reactive power for a certain amount of time according to the grid demand and maintain the grid voltage. This paper proposes sliding mode control that controls powers respectively the active and the reactive power for a Three-Phase Grid-Connected PV...
It is well known that the photovoltaic have a non linear response that may change depending the insolation and the temperature, to solve this problem and to extract the maximum power from the photovoltaic system, many maximum power point tracker algorithm were made, in some cases, extracting the maximum power point is not necessary, and the respect of the load voltage is the most important thing,...
This paper concentrates on the control of power flow in single stage photovoltaic energy conversion system. The conversion structure has a twofold requirement that consists in ensuring that the current injected to both load and grid obeys to the grid connection standards and sets the DC bus voltage similar to the reference voltage given by the MPPT algorithm. The advanced functions that can be added...
The objective of this work is to study the performances of hybrid system comprising wind and photovoltaic sources with battery storage. The grid integration of the PV system is carried out via a three phase three level neutral point clamped (NPC) inverter. The interface of connection to the electrical supply network consisted of a continuous bus, filters RL, the regulation of the powers and the management...
The electrical energy consumption continues to grow and more applications will be based on electricity in the next decades. We can expect that more 60 % of all energy consumption will be converted and used as electricity. It is a demand that production, distribution and use of electrical energy are done as efficient as possible. Further, emerging climate changes argues to find future solutions which...
In terms of optimal Microgrid (MG) control, the output power of a non-dispatchable Distributed Generation (DG) as a Photovoltaic (PV) system need to be controlled based on the optimal operating condition of its primary energy source by the mean of a Maximum Power Point Tracking (MPPT) to extract the potential maximum power which is nonlinearly depending on the weather conditions. In this work we presented...
This paper presents the analysis, modelling and control model of the electric part of a grid connected photovoltaic generation system. The model contains a detailed representation of the main components of the system that are the solar array, and the grid side multilevel neutral point clamped (NPC) voltage source inverter (VSI). In order to extract the maximum amount of from the photovoltaic generator,...
The performance of every photovoltaic (PV) module constituting a PV system can be slightly or strongly different from each other. This factual functioning of PV systems results in some new effects to bear in mind, including the appearance of new peak power points on the output P-V characteristic. However, traditional maximum power point tracking (MPPT) control methods do not manage these phenomena...
Aiming at the problem to generate difficultly steady electric energy in wind solar hybrid power system (WSHGS), the management and control method based on the battery power control is discussed. The system designed in this paper realizes the control for battery intelligent charging and discharging process by the system software and PIC16F877 signal chip computer. The hardware design scheme is given...
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