Novel Spline-MPPT Technique for Photovoltaic Systems Under Uniform Irradiance and Partial Shading Conditions

Ostadrahimi, Amir; Mahmoud, Yousef

doi:10.1109/tste.2020.3009054

Cited by 58 publications

(17 citation statements)

References 35 publications

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“…Each array is exposed to a different irradiance, and the i th peak in the array's P-V curve is the GMPP. In order to calculate the OCV of the i th module, ( 13) can be re-written as: (14) where VOC_STC is the module OCV, Iph_STC is the module's generated current at STC, VOC_i and Iph_i are the module OCV and generated current of the module in the i th peak respectively, and ΔVOC_i is the difference of OCV between the STC and the module in the i th peak. Using (14), the ΔVOC_i and consequently the VOC_i at any irradiance condition can be calculated.…”

Section: Gmppt Detection Proceduresmentioning

confidence: 99%

“…Some efforts have been made to combine the conventional MPPT algorithms to benefit the advantages like simplicity and need for minimum hardware and mitigate the inherent problems of these algorithms, like the tradeoff between tracking speed and accuracy of the searched-based algorithms and the possibility of tracking failure in sharp irradiance changes [12] , [13]. In [14] a new algorithm using the Spline based-MPPT technique and P&O has been proposed, where it applies different duty cycles to the modules and samples the current and voltage. Despite the simplicity, the algorithm is not effective for fast-changing environments.…”

Section: Introductionmentioning

confidence: 99%

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An Improved and Fast MPPT Algorithm for PV Systems Under Partially Shaded Conditions

Etezadinejad

Asaei

Farhangi

et al. 2022

IEEE Trans. Sustain. Energy

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Section: Gmppt Detection Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Improved and Fast MPPT Algorithm for PV Systems Under Partially Shaded Conditions

Etezadinejad

Asaei

Farhangi

et al. 2022

IEEE Trans. Sustain. Energy

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“…24 introduces an enhanced power tracking algorithm for a photovoltaic array under a local shadow, and Ref. 25 was under uniform irradiance and PSCs. It states that the proposed PSO algorithm solves several parameters for any nonlinear problems with global solutions achieved 26 .…”

Section: Introductionmentioning

confidence: 99%

Improved salp swarm algorithm based on particle swarm optimization for maximum power point tracking of optimal photovoltaic systems

Dagal

Akın

Akboy

2022

Intl J of Energy Research

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In this study, an improved salp swarm algorithm based on particle swarm optimization for maximum power point tracking of optimal photovoltaic systems is investigated. The effect of PV partial shading conditions, uniform and fasttracking irradiance, duty cycle, frequency, temperature changes, and load types, and besides some comparative studies of different algorithms are adequately examined for better performance study of the proposed technique. The proposed improved salp swarm algorithm based particle swarm optimization utilizes the PV Solarex-MSX-60 photovoltaic solar panel, which considers voltage and current as inputs based on the proposed algorithm parameters selection. Besides, it uses a buck-boost converter as an interface between input and output. The particle swarm optimization monitors the PV voltage and current, and the salp swarm algorithm does for the duty cycle (particles) in various environmental conditions. The proposed algorithm performs efficiencies 99.99%, 99.63%, and 99.24% comparison with other methods, under uniform irradiance and fast-tracking irradiance respectively. Moreover, the highest power of 316.32 W reached at the duty cycle of 0.6 and 428.6 W at the frequency of 30 kHz under the same partial shading condition with optimal operating temperature values 10 C

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“…Although the technique is successful in approaching the MPP, its tracking period contains huge oscillations, causing a slow convergence speed in reaching the MPP. The Spline-MPPT approach proposed in [21] claims to find maximum power under uniform and partial shading cases by using a small number of sample points. Using a smaller number of sample points compromises the accuracy.…”

Section: Introductionmentioning

confidence: 99%

An Improved Partial Shading Detection Strategy Based on Chimp Optimization Algorithm to Find Global Maximum Power Point of Solar Array System

2022

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A PV system’s operation highly depends on weather conditions. In case of varying irradiances or load changes, there is a power mismatch between various modules of the PV array. This power mismatch causes instability in the output of the PV system and deteriorates the overall system efficiency. To overcome instability and lower efficiency problems, and to extract maximum power from the PV system, various maximum power point tracking (MPPT) techniques are employed. The success of these techniques depends on the identification of the actual operating conditions of the system. This article proposes a hybrid maximum power point tracking (MPPT) technique that is capable of efficiently differentiating between uniform irradiance, non-uniform irradiance, and load variations on the PV system. Based on the identified operating conditions, the proposed method uses modified perturb and observe (Modified P&O) to cope with uniform irradiance variations and chimp optimization algorithms (ChOA) for non-uniform conditions to track the oscillation free maximum power-point. The proposed method is implemented and verified using a 4×3 PV array model in MATLAB Simulink software. Different cases of uniformly changing irradiance and non-uniformly changing irradiance are applied to test the performance of the proposed hybrid technique. The load varying conditions are performed by applying a variable load resistor. The authenticity of the proposed hybrid technique is critically evaluated against the well-known and most widely used optimization techniques of modified perturb and observe (Modified P&O), particle swarm optimization (PSO), flower pollination algorithm (FPA), and grey wolf optimization (GWO). The results demonstrate the superiority of the proposed technique in oscillation-free tracking of global maximum power point (GMPP) in a minimum tracking time of 0.4 s and 0.15 s, and steady-state MPPT efficiency of 96.92% and 99.54% under uniform and non-uniform irradiance conditions, respectively.

show abstract

Novel Spline-MPPT Technique for Photovoltaic Systems Under Uniform Irradiance and Partial Shading Conditions

Cited by 58 publications

References 35 publications

An Improved and Fast MPPT Algorithm for PV Systems Under Partially Shaded Conditions

An Improved and Fast MPPT Algorithm for PV Systems Under Partially Shaded Conditions

Improved salp swarm algorithm based on particle swarm optimization for maximum power point tracking of optimal photovoltaic systems

An Improved Partial Shading Detection Strategy Based on Chimp Optimization Algorithm to Find Global Maximum Power Point of Solar Array System

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