Maximum power extraction from photo-voltaic power generator with adaptive MPP tracker

Desai, Hardik P.; Maheshwari, Raaz; Sharma, Shambhu N.; Shah, Varsha A.

doi:10.3103/s0003701x10040031

Cited by 8 publications

(2 citation statements)

References 15 publications

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“…Moreover, they presented similar issues regarding losses in steady-state [7], and tracking performances under variable climatic conditions. As solution, adaptive CMs with variable step sizes have been developed [8]- [11]. In these strategies, when the operating point is far from the MPP, the step size is increased which enables to a fast-tracking ability.…”

Section: Introductionmentioning

confidence: 99%

Unity Efficiency and Zero-Oscillations Based MPPT for Photovoltaic Systems

et al. 2020

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Maximum power point tracking (MPPT) is essential for photovoltaic systems to ensure a maximum power extraction from PV panels. Many MPPT techniques have been suggested in the literature. However, some issues such as oscillations, power loss and other technical aspects still unsolved. This paper presents and discusses a new MPPT algorithm with zero-oscillations and unity efficiency in transient and steady-states. This algorithm leads to track the maximum power point under extreme operating conditions. The proposed MPPT method is based on the simple adaptive linear neuron. In addition, its implementation is achieved without any additional control loop, which resulted in a simple control. In order to validate the proposal effectiveness, both simulation and experiment tests are carried out under variable irradiance and load. Comparison between the developed MPPT and the conventional perturb and observe algorithm is also performed. Obtained results show that with the proposed method, unity efficiency is reached and oscillations are fully removed in the transient and steady-states. The originality of this work is the design of a simple and efficient MPPT algorithm based on the ADALINE with unity efficiency and zero-oscillations. Moreover, the proposal is verified using a real PV system under irradiance and load changes.

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Section: Introductionmentioning

confidence: 99%

Unity Efficiency and Zero-Oscillations Based MPPT for Photovoltaic Systems

et al. 2020

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“…Various types of MPPT algorithms are proposed mainly are open circuit voltage (Enslin et al 1997), short circuit current (Noguchi et al 2002), incremental conductance (IC) (Safari and Mekhilef 2011;Soon et al 2013), perturb & observe (P&O) (Faranda et al 2008;Yu et al 2010;Xiao and Dunford 2004;De Brito et al 2013;Bianconi et al 2013;Salas et al 2005), hybrid method (Moradi and Reisi 2011) etc. The other techniques are used to extract maximum power is by changing in power electronics converter topology (Sayed et al 2012;Tseng et al 2013) and by using adaptive control strategy (Deasi et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of modified perturb & observe maximum power point tracker for solar PV system

Din

Mishra

Haque

2015

Int J Syst Assur Eng Manag

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Solar photovoltaic (PV) is used to convert the solar energy (a major source of renewable energy) into unregulated electrical energy. Maximum power point tracker (MPPT) is used to extract the maximum power from solar PV. Among various types of MPPT schemes, perturb & observe (P&O) scheme is one of the most popular method. The study aims at to develop a modified P&O MPPT scheme and to evaluate the performance parameters such as convergence time, steady state oscillations, and reliability under change in ambient conditions as well as load variations. In the modified MPPT design, the response time of the power electronics DC-DC converter is considered for deciding the interval between two perturbations. The simulation study is performed using PSIM software and the prototype hardware is developed in the laboratory. The modified MPPT scheme is implemented using buck DC-DC converter. The results show the convergence time of 0.16 s and steady state oscillation of 1 W with step load change response time of 1.8 s. The comparison of findings obtained in the modified P&O MPPT scheme and existing methods showed significant improvements. The modified P&O MPPT scheme may be useful for home applications, in DC microgrids.

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