Fuzzy-Logic-Control Approach of a Modified Hill-Climbing Method for Maximum Power Point in Microgrid Standalone Photovoltaic System

Alajmi, Bader N.; Ahmed, Khaled; Finney, S.J.; Williams, B.W.

doi:10.1109/tpel.2010.2090903

Cited by 576 publications

(235 citation statements)

References 46 publications

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“…However, perturbations in the zero slope state can still occur. Although some other tracking algorithms, such as fuzzylogic [5], neural-network [6] and swarm chasing [7], exhibit precise tracking capability, these algorithms are very complicated. In addition to the above methods, the fractional open circuit voltage and short current methods have also been proposed.…”

Section: Highly Preferred Methods For Mppt In Pv Systemmentioning

confidence: 99%

Survey on MPPT Techniques in Photovoltaic Solar Energy Systems

Singh¹

2015

IJAREEIE

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ABSTRACT-_Tracking of the maximum power point of a photovoltaic array is usually an essential part of PV systems. In general, PV generation systems have two major problems; the conversion efficiency of electric power generation is low, and the amount of electric power generated by solar arrays changes continuously with weather conditions. Moreover, the solar cell I-V characteristic is nonlinear and varies with irradiation and temperature. There is a unique point on the I-V or P-V curve of the solar array called MPP, at which the entire PV system operates with maximum efficiency and produces its maximum output power. The location of the MPP is not known, but can be located, either through calculation models, or by search algorithms. Therefore MPPT techniques are needed to maintain the PV array"s operating point at its MPP. In this paper, some of the most popular techniques are surveyed which are used in their work by most of the authors.

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Section: Highly Preferred Methods For Mppt In Pv Systemmentioning

confidence: 99%

Survey on MPPT Techniques in Photovoltaic Solar Energy Systems

Singh¹

2015

IJAREEIE

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“…The aim of this converter is to extract the maximum power from the PV array. So, it acts as an interface between the PV array and the load, allowing the follow-up of the MPP [18][19][20][21]. The DC/DC conversion process is similar to the transformer one when it is used as an impedance adaptor, except that, in converter the adaptation parameter is not the turns ratio between the secondary and primary ones, but the duty cycle (D), which can be governed electronically.…”

Section: Modeling and Characterization Of The Pv Generatormentioning

confidence: 99%

Relevance of the P & O MPPT Technique in an Original PV-Powered Water Pumping Application

Aissou¹,

Jacques²,

Mokrani³

et al. 2015

JEPE

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Many papers exploiting the various MPPT (maximum power point tracking) techniques in PV (photovoltaic) applications, from the simple to the most complicated, can be found in literature. However, these techniques may not always be easy to implement in industrial applications. The main challenge of this paper is to model and implement the P & O (perturb and observe) algorithm in a low-cost PV-powered pumping system. To that end, a comparative investigation of the performance characteristics of the most popular MPPT methods, such as FOCV (fractional open circuit voltage), FSCC (fractional short circuit current), FLC (fuzzy logic control), ANN (artificial neural network) and INC (incremental conductance) is presented. This analysis is helpful to highlight the relevance of the P & O technique taking better account of complexity, difficulty of implementation and cost considerations in water pumping applications. The targeted PV-powered pumping system is based on a single-phase induction motor supplied by a three-phase inverter controlled by the DTC (direct torque control) technique. This stand-alone PV system is dedicated to water pumping, especially in rural areas that have no access to national grids but have sufficient amount of solar radiation. Simulation modeling (Matlab/Simulink) and experimental results are presented to demonstrate the relevance of the system.

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“…This feature makes it difficult for traditional methods, such as the Perturb & Observe (P&O) method (Femia et al 2005), incremental conductance (IC) method (Zhang et al 2011) and Hill Climbing (Alajmi et al 2011) to distinguish between local and global peaks.…”

Section: Introductionmentioning

confidence: 99%

“…Recent research in this area has seen the application of various artificial intelligence schemes, such as fuzzy logic controller (FLC) (Alajmi et al 2011;Bendib et al 2014) and neural network (NN) (Bendib et al 2014;Zhang and Bai 2008;Boumaaraf et al 2015;Arthishri et al 2014;Ngan and Tan 2016). Though these methods have been shown to be effective in dealing with the nonlinear characteristics of the I-V curves, they incur considerable computational cost (Ishaque et al 2012).…”

Section: Introductionmentioning

confidence: 99%

A Two-Stage Particle Swarm Optimization Algorithm for MPPT of Partially Shaded PV Arrays

Mao

Zhang

Duan

et al. 2017

International Journal of Green Energy

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Abstract:The power-voltage (P-V) characteristic curves of a PV array are nonlinear and have multiple peaks under partially shaded conditions (PSCs). This paper proposes a novel maximum power point tracking (MPPT) method for a PV system with reduced steady-state oscillation based on a two-stage particle swarm optimization (PSO) algorithm. The grouping method of the shuffled frog leaping algorithm (SFLA) is incorporated in the basic PSO algorithm (PSO-SFLA), ensuring fast and accurate searching of the global extremum. An adaptive speed factor is also introduced into the improved PSO to further enhance its convergence speed. Tests results show that the proposed method converges in less than half the time taken by the conventional PSO method, and the power is improved by 33% under the worst PSCs, which confirms the superiority of the proposed method over the standard PSO algorithm in terms of tracking speed and steady-state oscillations under different PSCs.

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Fuzzy-Logic-Control Approach of a Modified Hill-Climbing Method for Maximum Power Point in Microgrid Standalone Photovoltaic System

Cited by 576 publications

References 46 publications

Survey on MPPT Techniques in Photovoltaic Solar Energy Systems

Survey on MPPT Techniques in Photovoltaic Solar Energy Systems

Relevance of the P & O MPPT Technique in an Original PV-Powered Water Pumping Application

A Two-Stage Particle Swarm Optimization Algorithm for MPPT of Partially Shaded PV Arrays

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