Temat: tracking efficiency

Skocz do pozycji: 1.

Tytuł:: Fuzzy logic controller based maximum power point tracking technique for different configurations of partially shaded photovoltaic system
Autorzy:: Naick, B. K.
Chatterjee, K.
Chatterjee, T. K.
Tematy:: partially shaded configuration
photovoltaic system
maximum power point tracking
fuzzy logic controller
tracking efficiency; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/141010.pdf Link otwiera się w nowym oknie
Opis:: A solar photovoltaic (PV) system has been emerging out as one of the greatest potential renewable energy sources and is contributing significantly in the energy sector. The PV system depends upon the solar irradiation and any changes in the incoming solar irradiation will affect badly on the output of the PV system. The solar irradiation is location specific and also the atmospheric conditions in the surroundings of the PV system contribute significantly to its performance. This paper presents the cumulative assessment of the four MPPT techniques during the partial shading conditions (PSCs) for different configurations of the PV array. The partial shading configurations like series-parallel, bridge link, total cross tied and honeycomb structure for an 84 PV array has been simulated to compare the maximum power point tracking (MPPT) techniques. The MPPT techniques like perturb and observe, incremental conductance, extremum seeking control and a fuzzy logic controller were implemented for different shading patterns. The results related to the maximum power tracked, tracking efficiency of each of the MPPT techniques were presented in order to assess the best MPPT technique and the best configuration of the PV array for yielding the maximum power during the PSCs.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 2.

Tytuł:: Static and dynamic MPP-tracking efﬁciency of PV-inverter using recorded irradiance
Autorzy:: Marańda, W.
Piotrowicz, M.
Tematy:: photovoltaics
MPP-tracking
PV inverter
tracking efﬁciency
fotowoltaika
śledzenie punktu mocy maksymalnej
przekształtnik PV
efektywność śledzenia; Pokaż więcej
Wydawca:: Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Powiązania:: https://bibliotekanauki.pl/articles/397987.pdf Link otwiera się w nowym oknie
Opis:: This paper investigates the energy losses introduced by Maximum Power Point Tracking operation of photovoltaic (PV) inverter. In contrast to other studies, this evaluation has been done with the recorded real-life solar irradiance data applied to the simulation of the PV-generator and tracking algorithm. The true MPP output of photovoltaic generator has been calculated with electro-thermal model and the simulation has been carried out with 1 s time resolution. The efﬁciency results have been presented for both static and dynamic MPP-tracking investigated With basic and simpliﬁed Perturb&Observe algorithm with several tracking speed rates. In addition to the simulation, the inverter efﬁciency measurements for ﬁeld- installed inverter have been presented.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 3.

Tytuł:: Lyapunov stability based sliding mode observer for sensorless control of permanent magnet synchronous motor
Autorzy:: Navaneethan, Soundirarajan
Kanthalakshmi, Srinivasan
Aandrew Baggio, S.
Tematy:: electric vehicles
permanent magnet synchronous motor
sensorless control
sliding mode observer
Lyapunov stability
tracking efficiency
pojazdy elektryczne
silnik synchroniczny z magnesami trwałymi
sterowanie bezczujnikowe
obserwator o ślizgowym trybie pracy
stabilność Lapunova
wydajność śledzenia; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2173640.pdf Link otwiera się w nowym oknie
Opis:: In recent years there has been an increasing demand for electric vehicles due to their attractive features including low pollution and increase in efficiency. Electric vehicles use electric motors as primary motion elements and permanent magnet machines found a proven record of use in electric vehicles. Permanent magnet synchronous motor (PMSM) as electric propulsion in electric vehicles supersedes the performance compared to other motor types. However, in order to eliminate the cumbersome mechanical sensors used for feedback, sensorless control of motors has been proposed. This paper proposes the design of sliding mode observer (SMO) based on Lyapunov stability for sensorless control of PMSM. The designed observer is modeled with a simulated PMSM model to evaluate the tracking efficiency of the observer. Further, the SMO is coded using MATLAB/Xilinx block models to investigate the performance at real-time.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 4.

Tytuł:: Performance of the prototype Silicon Tracking System of the CBM experiment tested with heavy-ion beams at SIS18
Autorzy:: Löchner, S.
Gil, Damian
Al-Turany, M.
Lubynets, O.
Kłeczek, R.
Kyva, V.
Kedych, V.
Schiaua, C.
Kisel, I.
Elizarov, I.
Luo, X.
Pietraszko, J.
Vasylyev, O.
Panasenko, I.
Jipa, A.
Feng, S.
Lorenz, M.
Reiter, S.P.
Gutiérrez Menéndez, D.
Berendes, R.
Nickels, F.
Ristea, O.
Teklishyn, M.
Senger, P.
Herrmann, N.
Marin Garcia, A.M.
Traxler, M.
Sun, K.
Zhou, W.
Visinka, R.
Schünemann, K.
Nabroth, M.
Maragoto Rodríguez, O.
Bercuci, A.
Kliemt, R.
Goldenbaum, F.
Semeniuk, P.
de Cuveland, J.
Selyuzhenkov, I.
Deshmukh, A.A.
Csanád, M.
Keshelashvili, I.
Keller, O.
Petriş, M.
Momot, I.
Becker, M.
Dubla, A.
Zabołotny, W.
Kiš, M.
Sambyal, S.S.
Höhne, C.
Bâsceanu, V.A.
Płaneta, Roman
Sahu, S.K.
Pugatch, V.
Arnoldi-Meadows, B.
Okropiridze, D.
Zhu, X.
Müller, W.F.J.
Galatyuk, T.
Mehta, S.
Taylor, J.
Plujko, V.
Rodríguez Garces, D.
Becker, J.
Zbroszczyk, H.P.
Gupta, A.
Feier-Riesen, C.
Puntke, A.
Mallick, B.
Pugach, M.
Heine, N.
Ghosh, S.K.
Frühauf, J.
Rustamov, A.
Povar, T.
Cherif, H.
Azmi, M.D.
Sefzick, T.
Kozlov, G.
Ritman, J.
Schmidt, C.J.
Gope, S.
Weidenkaff, P.
Nandy, E.
Munkes, P.
Ramírez Zaldivar, D.A.
Han, D.
Deppner, I.
Bhaduri, P.P.
Roether, F.
Schmidt, H.R.
Rost, A.
Greve, N.
Sen, A.
Lasko, Paweł
Mao, Y.
Zischka, G.
Hofman, O.
Yin, Z.
Kohn, M.
Mithran, A.
Dürr, M.
Sahoo, R.
Michel, J.
Söhngen, Y.
Flemming, H.
Linz, F.J.
Cãlin, M.
Staszel, Paweł
Lalik, Rafał
Suddia, O.
Thaufelder, J.
Wang, K.
Wintz, P.
Chaloupka, P.
Samal, S.
Sturm, C.
Yao, M.
Clerkin, E.
Matejcek, F.A.
Xu, H.
Sharma, A.
Blank, T.
Markert, J.
Zhang, X.
Toia, A.
Poźniak, K.
Ahrens, L.J.
Bertini, D.
Bonaventura, D.
Messchendorp, J.
Pauly, C.
Bhat, S.A.
Chattopadhyay, S.
Shiroya, M.
Schledt, D.
Simons, C.
Lymanets, A.
Klein-Bösing, Ch.
Petrovici, M.
Zhou, Y.
Peter, S.
Kasiński, K.
Lazanu, I.
Scharmann, K.
Frankenfeld, U.
Lakos, R.
Vassiliev, I.
Golinka-Bezshyyko, L.
Miskowiec, D.
Prasad, S.K.
Hoffmann, F.
Sidorenko, V.
Taka, E.D.
Thau, S.N.
Dvořák, R.
Unger, K.L.
Wu, K.
Andronic, A.
Zheng, S.
Wielanek, D.
Gorbunov, S.
Shi, S.
Chakrabarti, A.
Stockmanns, T.
Dahm, P.
Yang, J.
Majka, Zbigniew
Peña Rodríguez, J.
Lavrik, E.
Santos Marrero, K.
Jin, Y.
Das, S.
Loizeau, P.-A.
Pfeifer, D.
Deveaux, M.
Bertini, O.
Zumbruch, P.
Bhattacharyya, A.
Wyżykowski, A.
Friese, V.
Sahu, P.K.
Biswas, S.
Janson, T.
Singh, R.
Petráček, V.
Chernyshenko, S.
Ismail, K.
Romaniuk, R.
Koczoń, P.
Kshyvanskyi, O.
Radulescu, L.
Kumar, L.
Matulewicz, T.
Li, Y.
Neuhaus, S.
Mahajan, S.
Heuser, J.M.
Singh, B.K.
Kruszewski, M.
Bhasin, A.
Moreira de Godoy Willems, D.
Yang, R.
Smith, D.
Daribayeva, A.
Bhowmik, N.K.
Redelbach, A.
Koch, K.
Diehl, J.
Bajdel, M.
Appelshäuser, H.
Bhattacharjee, B.
Sharma, P.K.
Ghosh, C.
Spicker, D.
Förtsch, J.
Alam, N.
Beyer, M.
Li, S.
Koziel, M.
Otfinowski, P.
Zharko, S.
Simon, F.
Wolf, Gy.
Han, J.
Singh, O.
Leung, Y.H.
Zhou, D.
Bezshyyko, O.
Blume, C.
Stroth, J.
Gutsche, B.
Huang, Y.
Darwish, H.
Podgornov, N.
Wahmes, L.
Wilms, A.
Faber, L.J.
Fröhlich, I.
Soból, Bartosz
Wieloch, Andrzej
Deppe, H.
Trębacz, L.
Kovalchuk, O.
Kugler, A.
Kollarczyk, J.
Fidorra, F.
Roy, A.
Schintke, F.
Mandal, S.
Kampert, K.-H.
Szczygieł, R.
Gangopadhyay, G.
Brzychczyk, Janusz
Holzmann, R.
Bhat, W.A.
Li, W.
Penek, Ö.
Agarwal, K.
Rodríguez Rodríguez, A.
Sun, Y.
Subramanya, G.S.
Deară, D.-A.
Singhal, V.
Hesounová, H.
Ahammed, Z.
Trifonova, E.
Foka, P.
Pan, L.
Liu, F.
Artur, B.
Bluhme, N.
Kapell, R.M.
Weiglhofer, F.
Nerling, F.
Nayak, S.R.
Fischer, P.
Andary, J.
Sun, Z.
Ahmad, N.
Agarwal, A.
Wojtkowski, M.
Emschermann, D.
Kumar, A.
Volkova, E.
Roy, S.
Kadenko, I.
Saini, J.
Senger, A.
Tyagi, O.
Wu, Q.
Singh, A.K.
Raha, S.
Yoo, I.
Wessels, J.P.
Meyer-Ahrens, A.
Piasecki, K.
Boccarella, G.
Dubey, A.K.
Kresan, D.
Mir, M.F.
Collazo Sánchez, L.M.
Bandyopadhyay, A.
Gläßel, S.
Opíchal, A.
Caselle, M.
Sharma, A.K.
Kähler, P.
Zubrzycka, W.
Balzer, M.
Das, R.
Eschke, J.
Kubiak, B.
Uhlig, F.
Bhat, T.A.
Ray, R.
Twarowska, A.
Wang, Y.
Lindenstruth, V.
Pluta, J.
Subramani, P.
Dobishuk, V.
Grzonka, D.
Hutter, D.
Kim, S.
Karabowicz, R.
Krüger, W.
Müntz, C.
Mohanty, B.
Belousov, A.
Seck, F.-J.
Khan, M.M.
Kashyap, V.K.S.
Salabura, Piotr
Gasik, P.
Rubio, E.
Reinefeld, A.
Lehnert, J.
Opis:: The Compressed Baryonic Matter (CBM) experiment at the future Facility for Antiproton and Ion Research (FAIR) is a heavy-ion experiment designed to study nuclear matter at the highest baryonic density. For high-statistics measurements of rare probes, collision rates of up to 10 MHz are targeted. The experiment, therefore, requires fast and radiation-hard detectors, self-triggered detector front-ends, free-streaming readout architecture, and online event reconstruction. The Silicon Tracking System (STS) is the main tracking detector of CBM, designed to reconstruct the trajectories of charged particles with efficiency larger than 95%, a relative momentum uncertainty better than 2% for particle momenta larger than 1 GeV/c inside a 1 Tm magnetic field, and to identify complex decay topologies. It comprises 876 double-sided silicon strip modules arranged in 8 tracking stations. A prototype of this detector, consisting of 12 modules arranged in three tracking stations, is installed in the mini-CBM demonstrator. This experimental setup is a small-scale precursor to the full CBM detector, composed of sub-units of all major CBM systems installed on the SIS18 beamline. In various beam campaigns taken between 2021 and 2024, heavy ion collisions at 1–2 AGeV with an average collision rate of 500 kHz have been recorded. This allows for the evaluation of the operational performance of the STS detector, including signal-to-noise ratio, charge distribution, time and position resolution, hit reconstruction efficiency, and its potential for track and vertex reconstruction.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

na półce

Skocz do pozycji: 5.

Tytuł:: Efficiency of maximum power point tracking in photovoltaic system under variable solar irradiance
Autorzy:: Marańda, W.
Piotrowicz, M.
Tematy:: photovoltaics
MPP-tracking
inverter efficiency
fotowoltaika
śledzenie
MPP
sprawność falownika; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/200627.pdf Link otwiera się w nowym oknie
Opis:: Field conditions decrease the energy output of photovoltaic (PV) systems, mainly due to excessive temperatures. However, in regions with moderate ambient temperatures, as in Poland, solar energy is commonly delivered with highly fluctuating irradiance. This introduces yet another source of energy losses due to the non-ideal tracking of actual position of Maximum Power Point (MPP). Majority of PV-systems are equipped with DC/AC and grid-connected inverter. Since the solar energy flux is variable, an adequate MPP-tracking algorithm is required to handle a wide range of load levels and face rapid changes of input power. Along with the essential DC/AC conversion, the quality of MPP-tracking must also be taken into account in evaluation of inverter efficiency. The tracking in dynamic conditions has been addressed only recently. Several algorithms has been studied theoretically, experimentally or in laboratory conditions by applying artificial input test-patterns. This work takes the opposite approach by applying the recorded real-life solar irradiance and simulating the tracking behavior to study the problem for true field conditions in Poland. The simulation uses the unique high-quality irradiance data collected with 200 ms time resolution. The calculation of both static and dynamic MPP-tracking efficiency has been performed for representative variable-cloudy day, applying commonly used Perturb&Observe tracking algorithm.
Dostawca treści:: Biblioteka Nauki

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na półce

Skocz do pozycji: 6.

Tytuł:: Energy efficiency analysis of 1 MW PV farm mounted on fixed and tracking systems
Autorzy:: Walichnowska, Patrycja
Mroziński, Adam
Idzikowski, Adam
Fröhlich, Siegmund Richard
Tematy:: farma fotowoltaiczna
efektywność
system śledzący słońce
photovoltaic farm
efficiency
solar-tracking system; Pokaż więcej
Wydawca:: Politechnika Częstochowska
Powiązania:: https://bibliotekanauki.pl/articles/31342637.pdf Link otwiera się w nowym oknie
Opis:: The article presents a comparison of results from a simulation of the energy production by a photovoltaic installation with a tracking system and a stationary PV farm in the PVSyst program. The analyzed 1 MW PV installations were located in the Kuyavian-Pomeranian Voivodeship in Poland. Energy production results obtained from the installation with a tracking system were compared with a stationary farm with panels placed at an angle of 20° and an azimuth 0°. The paper also presents the types of tracking systems and discusses the advantages of this solution and its risks compared to traditional panel mounting. The results obtained in the study indicated that the use of a tracking system increased the annual energy production compared to a stationary farm.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Analiza zaopatrzenia w energię elektryczną budynku użyteczności publicznej z wykorzystaniem instalacji fotowoltaicznej i mikroturbiny
An analysis of the electricity supply at a public building utilizing photovoltaic systems and a microturbine
Autorzy:: Sawicka-Chudy, P.
Rybak-Wilusz, E.
Sibiński, M.
Cholewa, M.
Pawełek, R.
Tematy:: instalacja fotowoltaiczna
system stacjonarny
system nadążny
mikroturbina gazowa
efektywność energetyczna
photovoltaic installation
tracking system
fixed-tilt panels
gas microturbine
energy efficiency; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Powiązania:: https://bibliotekanauki.pl/articles/394965.pdf Link otwiera się w nowym oknie
Opis:: W ostatnich latach poszukiwania nowych, efektywnych rozwiązań wytwarzania energii są skierowane na produkcję energii elektrycznej z wykorzystaniem nośników odnawialnych oraz przyjaznych środowisku. Spowodowało to wzrost zainteresowania ogniwami PV oraz systemami kogeneracyjnymi. W artykule, na tle historii rozwoju kolejnych generacji ogniw PV, zaprezentowano główne czynniki wpływające na ich parametry eksploatacyjne. Scharakteryzowano średnie dzienne promieniowanie słoneczne i prędkości wiatru w Łodzi. Przedmiotem badań była stacjonarna i nadążna instalacja fotowoltaiczna o łącznej mocy szczytowej 15 kWp oraz mikroturbina gazowa o mocy elektrycznej 30 kW, znajdujące się na Politechnice Łódzkiej na Wydziału Elektrotechniki, Elektroniki, Informatyki i Automatyki, zasilające sieć elektroenergetyczną budynków laboratoriów. Pomiary energetyczne prowadzono w 2016 roku i na ich podstawie wykonano analizę efektywności energetycznej i analizę finansową zaopatrzenia budynków w energię. Oceniono uzysk energii w modułach stacjonarnych i nadążnych oraz procentowe pokrycie energii elektrycznej z ogniw PV i mikroturbiny. Wyznaczono rozkład miesięcznych oszczędności, roczną oszczędność kosztów energii oraz czas zwrotu kosztów inwestycyjnych badanych systemów. Przeprowadzone badania pozwalają na stwierdzenie, że energia wytworzona przez moduły nadążne jest około 3 razy większa niż wytworzona w modułach stacjonarnych. Natomiast roczne oszczędności kosztów energii przy zastosowaniu mikroturbiny gazowej są około dziesięciokrotnie większe niż dla paneli nadążnych. Po przeprowadzeniu tej analizy można stwierdzić opłacalność stosowania agregatów kogeneracyjnych i paneli fotowoltaicznych, mimo dużych nakładów finansowych. Czas zwrotu nakładów inwestycyjnych wynosi około 12 lat podczas użytkowania instalacji przez cały rok.
Recently, the search for new effective energy production solutions has been focused on the production of electricity using renewable and environmentally friendly carriers. This resulted in an increased interest in PV cells and cogeneration systems. The article looks at the main factors affecting their operational parameters against the background of the development history of subsequent generations of PV cells. Average daily solar radiation and wind velocity in Lodz were characterized. The research was done on a static and tracking system with a total peak power of 15 kWp and a 30 kW microturbine. PV panels are installed on the building of the Institute of Electrical Power Engineering of the Lodz University of Technology and they work as part of DERLab. A microturbine is inside the building. Energy measurements were carried out in 2016 giving grounds for the analysis of energy efficiency and financial analysis of the energy supply in buildings. Energy yields in the static and tracking system as well as percentage coverage of electricity from PV cells and microturbines were assessed. The distribution of monthly savings, annual savings of energy costs and the payback time of the investment costs of the systems subject to the test were determined. The research we have done allows us to say that the energy produced by follow-up modules is about 3 times greater than that generated in stationary modules. On the other hand, the annual savings of energy costs using gas micro-turbines are about 10 times higher than those of lagging panels. The analysis shows that it is possible to determine the profitability of the microturbine and photovoltaic panels use despite large financial outlays. The payback period of investment outlays is about 12 years when using the installation throughout the year.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Comparative research of efficiency of photovoltaic power systems
Autorzy:: Syrotyuk, S.
Syrotyuk, V.
Halchak, V.
Tokmyna, A.
Chochowski, A.
Sosnowski, S.
Tematy:: photovoltaic power system
efficiency of photovoltaic power systems
system of monitoring
control unit
laboratory stand
solar-tracking installations
flat mirror concentrators; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Oddział w Lublinie PAN
Powiązania:: https://bibliotekanauki.pl/articles/411472.pdf Link otwiera się w nowym oknie
Opis:: The article gives results of the development of the system of monitoring for photovoltaic power installations with different configuration to study the factors, increasing their productivity. Differentiation of impact, made by the components of different structure of photovoltaic power installations is made by application of three independent controlled channels of energy extraction from photovoltaic panels: fixed focused, with application of solar tracker and with application of solar tracker, having flat mirror concentrators. To secure originality of the record of the electric energy, produced by photovoltaic panels, we have developed unit of control for discharging current of battery banks in each channel. It supports equal level of their charge. Amount of the produced electric energy in each channel is estimated by the value of discharge. Control and measuring system is made on the base of virtual devices with hardware unit of input/output of NI USB-6009 type, produced by National Instruments Company, with software LabVIEW. In the research, software code of the system of monitoring and front panel of operator have been developed. The work provides photos of the developed experimental stand.
Dostawca treści:: Biblioteka Nauki

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