Active solar panel tracking system actuated by shape memory alloy springs

Degeratu, Sonia; Alboteanu, Laurentiu; Rizescu, Sabin; Coman, Daniela; Bizdoaca, Nicu George; Caramida, Costel

doi:10.1109/icate.2014.6972678

Cited by 7 publications

(5 citation statements)

References 4 publications

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“…The algorithm is characterized by high dynamics of operation, while maintains all principles involved in design of converters for solar systems, e.g. MPPT [3]. Solar radiation falling on photovoltaic panels is disturbed by many factors, e.g.…”

Section: Fig 2 Diagram Of Cnv Block In Its Extended Versionmentioning

confidence: 99%

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Solar Power Plant with Distributed System of PV Panels

Świderski¹

2019

ELECTROTECHNICAL REVIEW

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In the work the other approach to a photovoltaic system is presented. With regard to an improvement of reliability of a solar system, maintaining and improving system's efficiency, authors proposed conception of the distributed PV system. This system consists of a set of individual small PV panels, while a single panel is connected to a low power converter, equipped with a pulse transformer. The converters work at a common energy container (battery). Thus, in case of failure of a single converter (or panel) the system is able to work properly with small only decrease of an output power, apart, maintenance of system operation is facilitated. In addition, due to all converters operate independently, individual environmental conditions (e.g. panel's temperature) can be respected so system's efficiency can be improved. In the work basics of system operation and selected system's simulation model findings are presented.Streszczenie. W pracy przedstawiono inne podejście do struktury systemu fotowoltaicznego. W odniesieniu do poprawy niezawodności działania systemu, obniżenia jego kosztów utrzymania i poprawy wydajności pracy, autorzy zaproponowali koncepcję tzw. rozproszonego systemu ogniw PV. System ten składa się z zestawu niewielkich paneli PV gdzie, pojedynczy panel jest dołączone do przekształtnika energoelektronicznego małej mocy, wyposażonego w transformator impulsowy. Transformator zapewnia mu indywidualną izolację galwaniczną. Konwertery pracują na wspólny zasobnik energii w postaci baterii LiION. Tak więc, w przypadku awarii pojedynczego konwertera (lub panelu), system może działać dalej, przy zmniejszonej mocy wyjściowej. Ułatwiona jest również obsługa (naprawa) systemu. Ponadto, ponieważ konwertery działają niezależnie od siebie, mogą brane być pod uwagę indywidualne warunki środowiskowe dla każdego panelu -na przykład jego temperatura, czy stopień zaciemnienia. W niniejszej pracy przedstawiono podstawy działania systemu i wybrane wyniki badań modelu symulacyjnego pojedynczego panelu. Elektrownia solarna z rozproszonym systemem ogniw fotowoltaicznych

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Section: Fig 2 Diagram Of Cnv Block In Its Extended Versionmentioning

confidence: 99%

“…In comparison to the classic system, the maximum energy consumption is clearly higher than the average and falls at noon. Laying the panels in the shape of a hypersurface additionally eliminates the need for an expensive mechanical system to keep up with the sun ("sun-follower") [3,7] or expensive optical elements.…”

Section: Fig 5 Database Cleaning Algorithmmentioning

confidence: 99%

Solar Power Plant with Distributed System of PV Panels

Świderski¹

2019

ELECTROTECHNICAL REVIEW

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“…Practically, passive and active solar systems are distinguished [3], [4]. Passive tracking systems follow the Sun in the absence of a drive motor and are frequently used in equatorial areas because they have a single-axis tracking structure that allows maximum efficiency to be achieved only in those [5], [6], [7] .…”

Section: Introductionmentioning

confidence: 99%

Small Scale Models of Solar Tracking Systems

Alboteanu,

Bratu,

Ravigan

2023

AUCEE

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Increasing the efficiency of photovoltaic panels using solar tracking systems is a current topic. The use of solar tracking systems is a solution, especially in low power applications. The paper presents two types of solar tracking systems, one based on astronomical data, and the other based on tracking the point of maximum illumination. Both systems are made on small scale for educational purposes. These systems can be used for the analysis of methods, principles and particularities in order to use them in practical applications. For the two experimental models of solar tracking made, the hardware and software structure are presented. To orient the photovoltaic panels in the two directions (East-West, respectively South-North) DC motors or stepper motors are used. One motor is used for each axis of rotation. Both structures have the control part composed of a microcontroller development system. This control method has the advantage that can significantly reduce the number of electronic components as well as the cost of designing and building of equipment. For the solar tracking system based on astronomical data, a remote monitoring and control system has been achieved. It uses a friendly graphic interface made on PC with the help of Visual Basic software. Both models were tested and the experimental results showed correct operation according to the imposed protocol. Finally, an energy efficiency analysis was done and it was found that the PV panel that uses the tracking systems produces 35% more energy compared to a fixed PV panel.

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“…On a larger scale, photovoltaic-based energy production systems with photovoltaic panels installed on building surfaces, are dedicated to household or industrial consumers, to powering transportation system and traffic safety systems [5], [6], and many other industrial applications [7]. For these kinds of installations, to reach the point of maximum power, various constructive variations for sun tracking systems are put to use: spring systems, form memory [7], tracking systems [8].…”

Section: Introductionmentioning

confidence: 99%

Efficiency of a small power photovoltaic installation connected to the low voltage network

Spunei

Piroi

2022

J. Phys.: Conf. Ser.

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Deploying photovoltaic installations to cover the electrical energy requirements of home and industrial consumer is both a national and an international trend. The aim of the research is to analyse the efficiency of the photovoltaic installation based on recordings and measurements. In this work, we present a case study for a 40 kW photovoltaic installation deployed for an industrial consumer. For a period of eleven days, we measured the energy levels that the consumer absorbed both from the national energy network and from the photovoltaic installation. We conclude that the photovoltaic installation covers approximately half of the energy required by the industrial consumer.

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Active solar panel tracking system actuated by shape memory alloy springs

Cited by 7 publications

References 4 publications

Solar Power Plant with Distributed System of PV Panels

Solar Power Plant with Distributed System of PV Panels

Small Scale Models of Solar Tracking Systems

Efficiency of a small power photovoltaic installation connected to the low voltage network

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