Photovoltaic Maximum Power Point Trackers: An Overview

Eltamaly, Ali M.

doi:10.1007/978-3-030-64565-6_6

Cited by 10 publications

(4 citation statements)

References 154 publications

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“…Therefore, a DC/DC boost converter with MPPT technology was used in this work to provide the optimum voltage for the proposed MLI and produce the maximum power from the PV array via the modified incremental conductance MPPT technique. Incremental conductance (In Cond) is among the most widely used traditional MPPT methods and involves the use of a variable step size [37].…”

Section: Pv System and Dc/dc Converter With Mppt Techologymentioning

confidence: 99%

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New Nine-Level Cascade Multilevel Inverter with a Minimum Number of Switches for PV Systems

Al-Samawi

Trabelsi

2022

Energies

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To support the grid system with high power quality from photovoltaics (PVs) and reduce the partial shading condition (PSC) effect of the PV system, as well as the mismatch power issue, in this study, we present a simple single-phase, nine-level cascade inverter architecture for photovoltaic (PV) systems with a minimum number of power components and passive parts. This reduction in the number of switches decreases the switching losses and the number of driving circuits, which causes a reduction in the complexity of the control circuit and hence reduces the cost and size. The suggested inverter shows a lower output voltage total harmonic distortion (THD) and unity power factor. In addition, this inverter’s control and switching techniques are far simpler than those of recently published designs. To evaluate the performance of the proposed inverter, we performed a comparison of the cascaded multilevel inverter (CMLI) topology, which required recent cascade topologies with the same nine voltage levels. The comparison depends on parameters such as the number of components (diode and capacitors) and the number of active switches in the inverter, in addition to total harmonic distortion. MATLAB/Simulink models for a grid-tied solar system PV application driven by the proposed nine-level inverter were built for design and validation.

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Section: Pv System and Dc/dc Converter With Mppt Techologymentioning

confidence: 99%

“…A cascaded MLI arrangement is used for most studies [23][24][25][26][27][28][29][30][31][32][33][34][35]. Maximum power point tracker (MPPT) techniques with a DC/DC converter [36,37] are used to obtain high power and improve the efficiency of the PV system.…”

Section: Introductionmentioning

confidence: 99%

New Nine-Level Cascade Multilevel Inverter with a Minimum Number of Switches for PV Systems

Al-Samawi

Trabelsi

2022

Energies

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“…There are other HMTs that use two MOAs, such as [34,35]. A detailed discussion of the HMT techniques is introduced in [36].…”

Section: Introductionmentioning

confidence: 99%

Modern Optimization Algorithm for Improved Performance of Maximum Power Point Tracker of Partially Shaded PV Systems

2023

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Due to the rapid advancement in the use of photovoltaic (PV) energy systems, it has become critical to look for ways to improve the energy generated by them. The extracted power from the PV modules is proportional to the output voltage. The relationship between output power and array voltage has only one peak under uniform irradiance, whereas it has multiple peaks under partial shade conditions (PSCs). There is only one global peak (GP) and many local peaks (LPs), where the typical maximum power point trackers (MPPTs) may become locked in one of the LPs, significantly reducing the PV system’s generated power and efficiency. The metaheuristic optimization algorithms (MOAs) solved this problem, albeit at the expense of the convergence time, which is one of these algorithms’ key shortcomings. Most MOAs attempt to lower the convergence time at the cost of the failure rate and the accuracy of the findings because these two factors are interdependent. To address these issues, this work introduces the dandelion optimization algorithm (DOA), a novel optimization algorithm. The DOA’s convergence time and failure rate are compared to other modern MOAs in critical scenarios of partial shade PV systems to demonstrate the DOA’s superiority. The results obtained from this study showed substantial performance improvement compared to other MOAs, where the convergence time was reduced to 0.4 s with zero failure rate compared to 0.9 s, 1.25 s, and 0.43 s for other MOAs under study. The optimal number of search agents in the swarm, the best initialization of search agents, and the optimal design of the dc–dc converter are introduced for optimal MPPT performance.

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“…There are other HMTs used two MOAs such as [34,35]. A detailed discussion of the HMT techniques is introduced in [36].…”

Section: Introductionmentioning

confidence: 99%

Modern Optimization Algorithm for Improved Performance of Maximum Power Point Tracker of Partially Shaded PV Systems

Eltamaly¹

2023

Preprint

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Because of the rapid advancement in the use of photovoltaic (PV) energy systems, it has become critical to look for ways to improve the energy generated by them. The extracted power from the PV modules is proportional to the output voltage. The relationship between output power and array voltage has only one peak under uniform irradiance, whereas it has multiple peaks under partial shade circumstances (PSC). There is only one global peak (GP) and many local peaks (LPs), where the typical maximum power point trackers (MPPT) may become locked in one of the LPs, significantly reducing the PV system's generated power and efficiency. The metaheuristic optimization algorithms (MOAs) solved this problem, albeit at the expense of the convergence time, which is one of these algorithms' key shortcomings. Most MOAs attempt to lower the convergence time at the cost of the failure rate and the accuracy of the findings because these two factors are interdependent. To address these issues, this work introduces the dandelion optimization algorithm (DOA), a novel optimization algorithm. The DOA's convergence time and failure rate are compared to other modern MOAs in critical scenarios of partial shade PV systems to demonstrate the DOA's superiority. The results obtained from this study showed substantial performance improvement compared to other MOAs, where the convergence time is reduced to 0.4 s with zero failure rate compared to 0.9 s, 1.25 s, and 0.43 s for other MOAs under study. The optimal number of search agents in the swarm, optimal initialization of search agents, and optimal design of the dc-dc converter is introduced for optimal MPPT performance.

show abstract

Photovoltaic Maximum Power Point Trackers: An Overview

Cited by 10 publications

References 154 publications

New Nine-Level Cascade Multilevel Inverter with a Minimum Number of Switches for PV Systems

New Nine-Level Cascade Multilevel Inverter with a Minimum Number of Switches for PV Systems

Modern Optimization Algorithm for Improved Performance of Maximum Power Point Tracker of Partially Shaded PV Systems

Modern Optimization Algorithm for Improved Performance of Maximum Power Point Tracker of Partially Shaded PV Systems

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