Abstract
In the several last years, numerous Maximum Power Point Tracking (MPPT) methods for photovoltaic (PV) systems have been proposed. An MPPT strategy is necessary to ensure the maximum power efficiency provided to the load from a PV module that is subject to external environmental perturbations such as radiance, temperature and partial shading. In this paper, a new MPPT technique is presented. Our approach has the novelty that it is a MPPT algorithm with a dynamic hysteresis model incorporated. One of the most cited Maximum Power Point Tracking methods is the Perturb and Observer algorithm since it is easily implemented. A comparison between the approach presented in this paper and the known Perturb and Observer method is evaluated. Moreover, a new PV-system platform was properly designed by employing low cost electronics, which may serve as an academical platform for further research and developments. This platform is used to show that the proposed algorithm is more efficient than the standard Perturb and Observer method.
Highlights
Nowadays, the electrical energy extracted from green sources is considered an effective and necessary solution for today’s new development efforts since conventional energies have had an enormous negative environmental impact on life on earth
Many researchers are open to this topic, such as the development of new Maximum Power Point Tracking (MPPT) algorithms to PV system arrays operating under partial shading and exhibiting multiple local maximum power points [13,14], appropriate updating of the current grid coded [15,16], modeling and analysis of utility-scale photovoltaic units in hybrid energy storage devices [12], and so on [17,18,19]
MPPT algorithm provides a better performance than the standard Perturb and Observer (P&O) method in PV power regulation under a repetitive blinking phenomenon
Summary
The electrical energy extracted from green sources is considered an effective and necessary solution for today’s new development efforts since conventional energies (petroleum and natural gas) have had an enormous negative environmental impact on life on earth. Many researchers are open to this topic, such as the development of new MPPT algorithms to PV system arrays operating under partial shading and exhibiting multiple local maximum power points [13,14], appropriate updating of the current grid coded [15,16], modeling and analysis of utility-scale photovoltaic units in hybrid energy storage devices [12], and so on [17,18,19]. Some of them are based on the PV model; for instance, those methods that fit in this branch are the Fractional Open-Circuit Voltage and Short-Circuit Current [24] These techniques have the primary disadvantage of periodically requiring disconnection or realizing short-circuits in the PV module and inducing a significant power loss [22].
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