Power Electronics and Control Techniques for Maximum Energy Harvesting in Photovoltaic Systems

Femia, N.; Petrone, G.; Spagnuolo, Giovanni; Vitelli, M.

doi:10.1201/b14303

Cited by 224 publications

(298 citation statements)

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“…The drawback of this configuration is that under a mismatching condition there is difficulty in achieving the desired output voltage of some SCPVMs. This is because voltage across each SCPVM depends on the ratio of its output power with respect to the total output power of the whole string [10]. To solve this problem an advanced and more complex control structure is necessary, or a parallel configuration adopted instead.…”

Section: System Configurationmentioning

confidence: 99%

“…The main disadvantage of this topology is the requirements set on a DC/DC converter to fulfil two contrasting requirements: a high-step-up voltage conversion ratio (about 10-15) and a high conversion efficiency [10]. That being the case, a significant number of research papers have been focused on achieving these requirements for a single-stage-power conversion system, with different solutions proposed in [11].…”

Section: System Configurationmentioning

confidence: 99%

“…The single-stage conversion topology is superior in its efficiency but the dynamic performance of the MPPT with the new proposed single-stage topologies has not been proven so far. However, in the case of double-stage based on using conventional boost converter, a high MPPT efficiency has been proven [10] and achieving high tracking speed is easy due to the simple structure of the boost converter.…”

Section: System Configurationmentioning

confidence: 99%

“…Also, the centralized MPPT may induce increased power losses resulting in poor overall system efficiency. To overcome the drawbacks of mismatching and MPPT low efficiency, nowadays an alternative PVG system structure called Distributed MPPT (DMPPT) is widely adopted [10]. It is based on dedicating an MPPT DC/DC converter for each PVG module.…”

Section: System Configurationmentioning

confidence: 99%

“…For PVG systems interfacing a DC micro-grid, the literature focuses on improving MPP tracking algorithms [10], proposing new topologies to increase system efficiency or to reduce the cost [11], suggesting different controllers arrangements to ensure high performance at both grid-connected and islanded modes [12] and highlighting stability issues that occur in DC micro-grids due to constant power loads. However, the interactions between the non-linear PVG sources and the rest of the system, which may affect the system performance and stability, are not well documented.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Photovoltaic generators interfacing a DC micro-grid: Design considerations for a double-stage boost power converter system

Odavić

2016

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)

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Abstract:A photovoltaic generator (PVG) is usually connected to a DC micro-grid via a multistage-step-up power converter to improve system modularity, minimise shading effects and boost PVG voltage. Under varying operating conditions, the nonlinear characteristics of a PVG may affect performance of the entire PVG system. Further, if these issues are not properly taken into account at the design stage, significant changes in system dynamics may risk stability of the system. Therefore, it is important to understand interactions between a PVG and the rest of the system. A clear understanding of these interactions can help to set system design recommendations and guidelines. In particular, this paper explores the effects of a nonlinear PVG source interfacing a double-stage conventional boost converter connected to a DC bus. It addresses the impact of these effects on the design of both the power circuit and the control loops. Finally, this paper provides system design recommendations to ensure stability under varying operating conditions.

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Section: System Configurationmentioning

confidence: 99%

Section: System Configurationmentioning

confidence: 99%

Section: System Configurationmentioning

confidence: 99%

Section: System Configurationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Photovoltaic generators interfacing a DC micro-grid: Design considerations for a double-stage boost power converter system

Odavić

2016

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)

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Maximum Power Point Tracking Techniques

Balato

Costanzo

Vitelli

2016

Wiley Encyclopedia of Electrical and Electronics Engineering

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An essential objective for many photovoltaic (PV) applications is represented by the so‐called maximum power point tracking (MPPT). Under uniform irradiance and ambient temperature conditions, the power versus voltage characteristic of a PV array is characterized by the presence of a unique point, termed maximum power point (MPP), where the power provided by the array itself attains its maximum value. Any other operating point leads to the extraction of a smaller PV energy. Therefore, in order to avoid the waste of PV energy, the working of the array in its MPP is mandatory. Since the position of the MPP continuously changes in time as a function of irradiance and temperature, it is necessary to continuously track it. Such an objective can be obtained by using proper MPPT control techniques. A large number of papers have appeared in the scientific literature during the last 15 years on the issue of MPPT, and as a result it may be difficult to decide the best technique for a given application. Therefore, this survey may hopefully be beneficial to students, researchers, and practitioners in PV systems. The article overviews the representative PV MPPT algorithms, organized into four main groups. The first group contains the so‐called “hill climbing” techniques, the second group contains the “curve fitting” techniques, the third group contains the “dynamical” techniques, and the fourth group includes all the techniques that do not belong to the first three groups.

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A novel auto‐tuned adaptive frequency and adaptive step‐size incremental conductance MPPT algorithm for photovoltaic system

Mishra

Das

Kumar

et al. 2021

Int Trans Electr Energ Syst

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This paper presents an auto-tuned Incremental Conductance (Inc) maximum power point tracking (MPPT) algorithm for a photovoltaic (PV) system. Proposed MPPT algorithm is adaptive in nature in terms of both MPPT perturbation frequency and step-size based on the change in PV voltage. To verify the functionality of the proposed adaptive frequency adaptive step-size Inc MPPT method, a boost converter based PV setup is developed and the algorithm is implemented in Arduino Mega-2560 micro-controller. An extensive comparative result analysis of the proposed technique is done with the conventional fixed frequency variable step-size Inc MPPT algorithms which are based on power-voltage slope and change in power. The proposed change in PV voltage based adaptive frequency adaptive step-size algorithm improves both steadystate and dynamic performance compared to the conventional fixed frequency variable step-size Inc algorithm. The steady-state oscillation is low with a faster tracking response.

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Power Electronics and Control Techniques for Maximum Energy Harvesting in Photovoltaic Systems

Cited by 224 publications

References 0 publications

Photovoltaic generators interfacing a DC micro-grid: Design considerations for a double-stage boost power converter system

Photovoltaic generators interfacing a DC micro-grid: Design considerations for a double-stage boost power converter system

Maximum Power Point Tracking Techniques

A novel auto‐tuned adaptive frequency and adaptive step‐size incremental conductance MPPT algorithm for photovoltaic system

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