Temat: system PV - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: The impact of selected parameters on the efficiency of a photovoltaic installation with bifacial modules in local conditions
Autorzy:: Walichnowska, Patrycja
Idzikowski, Adam
Mahdi, Sahib M.
Tematy:: photovoltaic
efficiency
bifacial module
PV system
fotowoltaika
efektywność
moduł dwustronny
system PV; Pokaż więcej
Wydawca:: Politechnika Częstochowska
Powiązania:: https://bibliotekanauki.pl/articles/31342514.pdf Link otwiera się w nowym oknie
Opis:: The article presents a comparison of the results of simulation by a photovoltaic installation with bifacial modules. The analyzed 20 kWp PV installation was located in the Kuyavian-Pomeranian Voivodeship. The article compares how the energy production of installations with bifacial modules changes depending on the angle of inclination, the distance between the rows of modules and the orientation. The results obtained in the study indicate that albedo is an important, but not the only parameter to be considered when designing a farm with bifacial modules.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Sun tracking in PV systems aspects
Autorzy:: Frydrychowicz-Jastrzębska, G.
Bugała, A.
Tematy:: photovoltaic system
PV system
sun tracking; Pokaż więcej
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Powiązania:: https://bibliotekanauki.pl/articles/97242.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Design of thermoelectric radiant cooling – photovoltaic panels system in the building
Autorzy:: Abdulghafor, Israa Ali
Mnati, Mohannad Jabbar
Tematy:: thermoelectric panel
cooling capacity
numerical calculations
PV system; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2204065.pdf Link otwiera się w nowym oknie
Opis:: In this study, a theoretical model is presented to investigate the performance of a thermoelectric (TE) radiant cooling system combined with photovoltaic (PV) modules as a power supply in a building with an ambient temperature reaching more than 45◦C. The combined system TE/PV performance is studied under different solar radiation by using the hourly analysis program and photovoltaic system software. The thermal and electric characteristics of TE are theoretically investigated under various supplied voltages using the multi-paradigm programming language and numerical computing environment. Also, a theoretical analysis of heat transfer between the TE radiant cooling system and an occupied zone from the side, and the other side between the TE radiant cooling system and duct zone is presented. The maximum power consumption by TE panels and building cooling load of 130 kW is predicted for May and June. The 145 units of PV panels could provide about 50% of the power required by TE panels. The thermal and electric characteristics of TE panels results show the minimum cold surface temperature of 15◦C at a supplied voltage between 6 V and 7 V, and the maximum hot surface temperature of 62◦C at a supplied voltage of 16 V. The surface temperature difference between supplied current and supplied power increases as supplied voltage increases. At a higher supplied voltage of 16 V, the maximum surface temperature difference between supplied current, and supplied power of 150◦C, 3.2 A, and 48 W, respectively. The cooling capacity increases as supplied voltage increases, at a surface temperature difference of –10◦C and supplied voltage of 16 V, the maximum cooling capacity is founded at about 60 W. As supplied voltage decreases the coefficient of performance increases. The maximum coefficient of performance is about 5 at the surface temperature difference of –10◦C and supplied voltage of 8 V.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Statistical Analysis of Electrical and Non-Electrical Parameters of Photovoltaic Modules in Controlled Tracking Systems
Autorzy:: Bugała, Artur
Bugała, Dorota
Jajczyk, Jarosław
Dąbrowski, Tomasz
Tematy:: tracking PV system
photovoltaic conversion
energy gain
spatial optimization
statistical analysis; Pokaż więcej
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Powiązania:: https://bibliotekanauki.pl/articles/2069901.pdf Link otwiera się w nowym oknie
Opis:: The paper presents statistical analysis of measurement results of electrical parameters for photovoltaic modules installed in stationary and dual-axis configurations. The parameters which were taken into account included: coefficient of variation, skewness and standard deviation. Also a correlation was determined between independent variables such as insolation, sunshine duration, cloudiness, ambient temperature and atmospheric pressure, and the dependent variable in the form of the daily electricity from photovoltaic conversion. In order to determine the repeatability of electricity waveforms occurring between summer months as well as between summer and winter months, the non-parametric U Mann-Whitney test was used. In order to analyse the repeatability of daily peak hours in which the highest value of the hourly electricity production is observed, the non-parametric Kruskal-Wallis test was used. The tested systems were connected to the power grid and operated independently. Test stands consisting of polycrystalline photovoltaic modules, single-phase on-grid inverters, irradiance sensors and a temperature recorder, were located on the building rooftop of the Faculty of Control Robotics and Electrical Engineering of the Poznan University of Technology in Poland (Central Poland, 52°24.4152′N, 16°55.7958′E) at the height of 30 metres above the ground level. A significant increase in the production of electricity using the PV module spatial positioning system was demonstrated in relation to modules based on the year-round modified design.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Experimental research of the impact of ship’s rolling on the performance of PV panels
Autorzy:: Zeńczak, Wojciech
Zapałowicz, Zbigniew
Tematy:: ship power system
PV system
ship’s energy efficiency design index
ship rolling; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/32897005.pdf Link otwiera się w nowym oknie
Opis:: The aim of the International Maritime Organization (IMO) to reduce by half the amount of greenhouse gases emitted by marine ships by 2050, and its vision of the fastest total decarbonisation in the maritime shipping industry within the present century, calls for implementation with various means of decarbonisation. The IMO approaches the process of decarbonisation in two phases. Firstly, short-term, compact projects are to be considered, next, more complex, medium- and long-term solutions should be aimed at. The preferred arrangements to be applied are photovoltaic systems. Their performance depends to a high degree on the solar incidence angle. In the case of a ship swinging as a result of its course in relation to the wave and incidence direction, the incidence angle undergoes significant periodic changes with a significant effect on the power generated by the PV panels. As a result, the total amount of energy produced by the PV panels diminishes. The paper presents experimental research results obtained on the stand that allowed the investigation of PV panels in simulated marine conditions. Two characteristic positions of a PV panel’s rotation axis in relation to the solar rays’ incidence direction were investigated. It was proved for both variants that the rolling period and solar incidence angle affected the power generated by the PV panel.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Economical analysis of electric vehicles in Poland
Autorzy:: Bienek, Filip
Szczygieł, Ireneusz
Rutczyk, Bartłomiej
Tematy:: PV system
electric vehicles
transportation economy
system fotowoltaiczny
pojazdy elektryczne
ekonomika transportu; Pokaż więcej
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Powiązania:: https://bibliotekanauki.pl/articles/24202451.pdf Link otwiera się w nowym oknie
Opis:: The paper presents results obtained from calculations conducted to receive information on the capability of photovoltaic systems to power electric vehicles in regular use. The annual distance travelled was divided in nine categories. Every aspect of this analysis was suitable for Polish market and parameters given by the climate that is connected with geographical location of Poland. It is worth mentioning that one of the key elements is the law for renewable energy, that is the key aspect to economical benefits that come from so called green investments. Energy law was also taken into account during this simulation. All those aspects together summarized to a conclusions that Polish market is not as competitive as other European markets when electric propulsion is present in the system.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Hybrydowa instalacja solarno-wiatrowa dla energooszczędnego domu jednorodzinnego
PV/Wind hybrid system for the low energy family house
Autorzy:: Walczak, T.
Kossecka, E.
Tematy:: instalacja hybrydowa
instalacja solarno-wiatrowa
hybrid system
PV/wind system; Pokaż więcej
Wydawca:: Instytut Fizyki Budowli Katarzyna i Piotr Klemm
Powiązania:: https://bibliotekanauki.pl/articles/1395680.pdf Link otwiera się w nowym oknie
Opis:: Przeprowadzono analizę funkcjonowania w ciągu 10-ciu lat hybrydowej instalacji solarno-wiatrowej, zaopatrującej w energię elektryczną mały energooszczędny dom jednorodzinny, w warunkach klimatu Warszawy. Równocześnie obliczono zapotrzebowanie budynku na ciepło, przy wykorzystaniu danych pogodowych Typowego Roku Meteorologicznego, oraz energię na przygotowanie ciepłej wody użytkowej. Instalacja może dostarczyć średnio 75% potrzebnej energii elektrycznej i dodatkowo 26% energii na cwu.
Photovoltaic-wind hybrid system for the low energy small family house with four inhabitants has been analyzed, using 10-year hourly meteorological data for Warsaw. Energy demand for space heating has been calculated using the Typical Meteorological Year data, together with energy demand for domestic water heating. The system can deliver, on average, 75% of the necessary energy for electricity and 26% for water heating.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Supercapacitors in stand-alone PV systems with instantaneous high output energy pulses
Superkondensatory w indywidualnych instalacjach PV o dużych chwilowych impulsach energii
Autorzy:: Grzesiak, W.
Maj, T.
Radziemska, E.
Tematy:: superkondensator
instalacja PV
impuls wysokiej energii
symetryzacja napięcia
supercapacitor
PV system
high energy pulse
voltage equalisation; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Technologii Materiałów Elektronicznych
Powiązania:: https://bibliotekanauki.pl/articles/192106.pdf Link otwiera się w nowym oknie
Opis:: Supercapacitors (SCs) as the energy storing devices find their way into contemporary electrical power engineering. While exhibiting certain properties of the batteries, they are distinguished by the ability of rapid charging and discharging as well as by the much higher durability and maintenance-free operation. The possible application range includes automotive systems, self-contained and mains-free energy sources as well as pulsed operation. This work is especially focused on the stand-alone photovoltaic (PV) systems fitted with batteries, but designed to periodically supply instantaneous energy pulses, which cannot be provided by the battery itself owing to its high internal resistance. Another subject matter of this work are the PV systems fitted with the supercapacitors, only. The paper discusses special methods of assembling the series supercapacitor banks in order to obtain elevated voltages. These methods consist in using sophisticated circuits, whose role is to ensure proper charging and discharging processes. The role of stabilising DC/DC and DC/AC output voltage of inverters used under changing supercapacitor voltage conditions is explained. The results of investigations are presented for the single and 6 - unit 3000 F 2.7 V supercapacitors. Some results were obtained and verified by means of the MATHCAD software. Practical solutions of ancillary electronic circuits are demonstrated.
Superkondensatory (SC) jako akumulatory energii są aktualnie wprowadzane do współczesnej elektroenergetyki. Wykazując pewne cechy konwencjonalnych akumulatorów wyróżniają się one możliwościami szybkiego ładowania i rozładowania, jak i znacznie wyższą trwałością i bezobsługową eksploatacją. Zakres ich zastosowań wiąże się głównie z motoryzacją, ze źródłami autonomicznymi odseparowanymi od sieci, a także z eksploatacją impulsową. Niniejsza praca poświęcona jest szczególnie autonomicznym instalacjom fotowoltaicznym (PV) wyposażonym w akumulatory, lecz przeznaczonym do okresowego, chwilowego dostarczania impulsów energii, niemożliwych do uzyskania z samych akumulatorów z powodu ich za dużej rezystancji wewnętrznej. Obiektem zainteresowań pracy są także instalacje PV wyposażone wyłącznie w superkondensatory. Praca omawia specjalne metody, niezbędne przy formowaniu szeregowych baterii superkondensatorów celem pozyskiwania wyższych napięć. Metody te bazują na specjalizowanych układach, nadzorujących symetryzację napięć w warunkach ładowania i rozładowania. Wyjaśniono rolę stabilizujących napięcie wyjściowe przetwornic DC/DC i DC/AC, stosowanych w warunkach zmienności napięcia superkondensatorów. Przedstawiono rezultaty badań pojedynczego oraz sześciu szeregowych superkondensatorów 3000 F 2,7 V. Niektóre wyniki pozyskano i zweryfikowano za pomocą komputerowego programu MATHCAD. Pokazano praktyczne układy elektroniki, towarzyszącej bateriom superkondensatorów.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Simulation of the impact of the degree and type of shading on generation of electrical energy by the PV system in MATLAB&SIMULINK environment
Autorzy:: Jarmuda, T.
Tematy:: PV system
poor shading effect
strong shading effect
bypass diodes
MATLAB environment; Pokaż więcej
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Powiązania:: https://bibliotekanauki.pl/articles/97511.pdf Link otwiera się w nowym oknie
Opis:: In the study the method of modelling of the photovoltaic system (PV) in MATLAB & SIMULINK environment was presented along with test results of the impact of shading on the value of energy output from the photovoltaic system. The PV system model constructed of five parallel connected photovoltaic panels of TPSM6U type was proposed. Simulation tests were conducted considering the effect of poor and strong shading of panels causing differences in the density of the radiation power (irradiance) for individual panels and the PV system. The values of electrical energy generated by individual PV panels and the whole photovoltaic system were determined for the purposes of the actual forces. Optional switching on and off of the bypass diodes was considered in the photovoltaic panels. The tests were developed and final conclusions were formulated.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Super twisting sliding mode controller for multi-functional grid-connected inverter in photovoltaic system
Autorzy:: Dehghani, Mahla
Mardaneh, Mohammad
Shafiei, Mohammad Hossein
Hasanvand, Saeed
Tematy:: harmonic compensation
PV system
photovoltaic system
single stage inverter
super-twisting sliding
mode control; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:: https://bibliotekanauki.pl/articles/59345879.pdf Link otwiera się w nowym oknie
Opis:: [1] Kabalcı E., Review on novel single-phase grid-connected solar inverters: Circuits and control methods, Solar Energy, vol. 198, pp. 247–274 (2020), DOI: 10.1016/j.solener.2020.01.063. [2] Manoharan P. et al., Improved perturb and observation maximum power point tracking technique for solar photovoltaic power generation systems, IEEE Systems Journal, vol. 15, no. 2, pp. 3024–3035 (2020), DOI: 10.1109/JSYST.2020.3003255. [3] Abdel-Salam M., El-Mohandes M.T., Goda M., An improved perturb-and-observe based MPPT method for PV systems under varying irradiation levels, Solar Energy, vol. 171, pp. 547–561 (2018), DOI: 10.1016/j.solener.2018.06.080. [4] Shang L., Guo H., Zhu W., An improved MPPT control strategy based on incremental conductance algorithm, Protection and Control of Modern Power Systems, vol. 5, no. 2, pp. 1–8 (2020), DOI: 10.1186/s41601-020-00161-z. [5] Singh P., Shukla N., Gaur P., Modified variable step incremental-conductance MPPT technique for photovoltaic system, International Journal of Information Technology, vol. 13, pp. 2483–2490 (2021), DOI: 10.1007/s41870-020-00450-8. [6] Harrison A., Alombah N.H., de Dieu Nguimfack Ndongmo J., A New Hybrid MPPT Based on Incremental Conductance-Integral Backstepping Controller Applied to a PV System under Fast Changing Operating Conditions, International Journal of Photoenergy, vol. 2023, no. 1, 9931481 (2023), DOI: 10.1155/2023/9931481. [7] Ali M.N., Mahmoud K., Lehtonen M., Darwish M.M., An efficient fuzzy-logic based variable step incremental conductance MPPT method for grid-connected PV systems, IEEE Access, vol. 9, pp. 26420–26430 (2021), DOI: 10.1109/ACCESS.2021.3058052. [8] Mahmod Mohammad A.N., Mohd Radzi M.A., Azis N., Shafie S., Atiqi Mohd Zainuri M.A., An enhanced adaptive perturb and observe technique for efficient maximum power point tracking under partial shading conditions, Applied Sciences, vol. 10, no. 11, 3912 (2020), DOI: 10.3390/app10113912. [9] Guo B., Optimization design and control of single-stage single-phase PV inverters for MPPT improvement, IEEE Transactions on Power Electronics, vol. 35, no. 12, pp. 13000–13016 (2020), DOI: 10.1109/TPEL.2020.2990923. [10] Vairavasundaram I., Varadarajan V., Pavankumar P.J., Kanagavel R.K., Ravi L., Vairavasundaram S., A review on small power rating PV inverter topologies and smart PV inverters, Electronics, vol. 10, no. 11, 129 (2021), DOI: 10.3390/electronics10111296. [11] Kolantla D., Mikkili S., Pendem S.R., Desai A.A., Critical review on various inverter topologies for PV system architectures, IET Renewable Power Generation, vol. 14, no. 17, pp. 3418–3438 (2020), DOI: 10.1049/iet-rpg.2020.0317. [12] Sahoo S.K., Sukchai S., Yanine F.F., Review and comparative study of single-stage inverters for a PV system, Renewable and Sustainable Energy Reviews, vol. 91, pp. 962–986 (2018), DOI: 10.1016/j.rser.2018.04.063. [13] Elallali A., Abouloifa A., Lachkar I., Taghzaoui C., Giri F., Mchaouar Y., Nonlinear control of grid-connected PV systems using active power filter with three-phase three-level NPC inverter, IFAC PapersOnLine, vol. 55, no. 12, pp. 61–66 (2022), DOI: 10.1016/j.ifacol.2022.07.289. [14] Daravath R., Sandepudi S.R., Control of multifunctional inverter to improve power quality in grid-tied solar photo voltaic systems, International Journal of Emerging Electric Power Systems, vol. 24, no. 6, pp. 743–754 (2023), DOI: 10.1515/ijeeps-2022-0117. [15] Wang J., Sun K., Wu H., Zhang L., Zhu J., Xing Y., Quasi-two-stage multifunctional photovoltaic inverter with power quality control and enhanced conversion efficiency, IEEE Transactions on Power Electronics, vol. 35, no. 7, pp. 7073–7085 (2019), DOI: 10.1109/TPEL.2019.2956940. [16] Naamane D., Laid Z., Fateh M., Power quality improvement based on third-order sliding mode direct power control of microgrid-connected photovoltaic system with battery storage and nonlinear load, Iranian Journal of Science and Technology, Transactions of Electrical Engineering, vol. 47, no. 4, pp. 1473–1490 (2023), DOI: 10.1007/s40998-023-00627-4. [17] Safa A., Berkouk E.M., Messlem Y., Gouichiche A., A robust control algorithm for a multifunctional grid tied inverter to enhance the power quality of a microgrid under unbalanced conditions, International Journal of Electrical Power & Energy Systems, vol. 100, pp. 253–264 (2018), DOI: 10.1016/j.ijepes.2018.02.042. [18] Dehkordi N.M., Sadati N., Hamzeh M., A robust backstepping high-order sliding mode control strategy for grid-connected DG units with harmonic/interharmonic current compensation capability, IEEE Transactions on Sustainable Energy, vol. 8, no. 2, pp. 561–572 (2016), DOI: 10.1109/TSTE.2016.2611383. [19] Utkin V.I., Sliding mode control design principles and applications to electric drives, IEEE Transactions on Industrial Electronics, vol. 40, no. 1, pp. 23–36 (1993), DOI: 10.1109/41.184818. [20] Komurcugil H., Biricik S., Bayhan S., Zhang Z., Sliding mode control: Overview of its applications in power converters, IEEE Industrial Electronics Magazine, vol. 15, no. 1, pp. 40–49 (2020), DOI: 10.1109/MIE.2020.2986165. [21] Utkin V., Lee H., Chattering problem in sliding mode control systems, in International Workshop on Variable Structure Systems, VSS’06, IEEE, pp. 346–350 (2006), DOI: 10.1016/j.arcontrol.2007.08.001. [22] Levant A., Sliding order and sliding accuracy in sliding mode control, International Journal of Control, vol. 58, no. 6, pp. 1247–1263 (1993), DOI: 10.1080/00207179308923053. [23] Ze K. et al., Design of super twisting sliding mode controller for a three-phase grid-connected photovoltaic system under normal and abnormal conditions, Energies, vol. 13, no. 15, 3773 (2020), DOI: 10.3390/en13153773. [24] Lu J., Savaghebi M., Ghias A.M., Hou X., Guerrero J.M., A reduced-order generalized proportional integral observer-based resonant super-twisting sliding mode control for grid-connected power converters, IEEE Transactions on Industrial Electronics, vol. 68, no. 7, pp. 5897–5908 (2020), DOI: 10.1109/TIE.2020.2998745. [25] Gonzalez T., Moreno J.A., Fridman L., Variable gain super-twisting sliding mode control, IEEE Transactions on Automatic Control, vol. 57, no. 8, pp. 2100–2105 (2011), DOI: 10.1109/TAC.2011.2179878. [26] Shen X. et al., High-performance second-order sliding mode control for NPC converters, IEEE Transactions on Industrial Informatics, vol. 16, no. 8, pp. 5345–5356 (2019), DOI: 10.1109/TII.2019.2960550. [27] Deffaf B., Hamoudi F., Debdouche N., Amor Y.A., Medjmadj S., Super-twisting Sliding Mode Control for a Multifunctional Double Stage Grid-connected Phoovoltaic System, Advances in Electrical and Electronic Engineering, vol. 20, no. 3, 240 (2022), DOI: 10.15598/aeee.v20i3.4454. [28] Dehghani M., Mardaneh M., Shafiei M.H., Sliding mode control for load harmonics compensation and PV voltage regulation in a grid-tied inverter through a single-stage MPPT, in 2020 IEEE 28th Iranian Conference on Electrical Engineering (ICEE), Tabriz, Iran, pp. 1–6 (2020), DOI: 10.1109/ICEE50131.2020.9260854. [29] Cortajarena J.A., Barambones O., Alkorta P., Cortajarena J., Sliding mode control of an active power filter with photovoltaic maximum power tracking, International Journal of Electrical Power & Energy Systems, vol. 110, pp. 747–758 (2019), DOI: 10.1016/j.ijepes.2019.03.070. [30] Del Pizzo A., Di Noia L.P., Meo S., Super twisting sliding mode control of smart-inverters gridconnected for PV applications, in 2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA), pp. 793–796 (2017), DOI: 10.1109/ICRERA.2017.8191168. [31] Levant A., Higher-order sliding modes, differentiation and output-feedback control, International Journal of Control, vol. 76, no. 9–10, pp. 924–941 (2003), DOI: 10.1080/0020717031000099029. [32] Barth A., Reichhartinger M., Reger J., Horn M., Wulff K., Lyapunov-design for a super-twisting sliding-mode controller using the certainty-equivalence principle, IFAC-PapersOnLine, vol. 48, no. 11, pp. 860–865 (2015), DOI: 10.1016/j.ifacol.2015.09.298.
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