Modelowanie pracy superkondensatora zasilającego układ poprawiający bezpieczeństwo drogowe

Głuchy, Damian; Kasprzyk, Leszek

doi:10.15199/48.2017.12.25

Cited by 7 publications

(8 citation statements)

References 5 publications

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“…2 presents the measuring station which serves the purpose of performing measurements in environmental conditions and electric parameters of the solar roof tiles installed in three different roofs D1 -D3 (described above). The PV cells are directed towards the south and inclined at an angle of 37 in relation to the ground surface (optimal conditions for Poznan) [11][12][13]. Three photovoltaic roof tiles were serially connected with each other on each of the roofs, and as a result of this the total installed power on a single roof amounted to 156 W. Table 5.…”

Section: E3s Web Of Conferencesmentioning

confidence: 99%

Analysis of the impact of thermal resistance of the roof on the performance of photovoltaic roof tiles

Kurz

Nawrowski

2017

E3S Web Conf.

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Abstract. The paper explores the issues related to the impact of thermal resistance of the roof on the electrical parameters of photovoltaic roof tiles. The methodology of determination of the thermal resistance and thermal transmittance factor was presented in accordance with the applicable legal regulations and standards. A test station was presented for the purpose of measurement of the parameters of photovoltaic roof tiles depending on the structure of the roof substrate. Detailed analysis of selected building components as well as their impact on the design thermal resistance factor and thermal transmittance factor was carried out. Results of our own studies, which indicated a relation between the type of the roof structure and the values of the electricity generated by photovoltaic tiles, were presented. Based on the calculations, it was concluded that the generated outputs in the respective constructions differ by maximum 6%. For cells with the highest temperature, the performance of the PV roof tiles on the respective roof constructions fell within the range between 0.4% and 1.2% (depending on the conducted measurement) and amounted to 8.76% (in reference to 9.97% for roof tiles with the lowest temperature).

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Section: E3s Web Of Conferencesmentioning

confidence: 99%

Analysis of the impact of thermal resistance of the roof on the performance of photovoltaic roof tiles

Kurz

Nawrowski

2017

E3S Web Conf.

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“…The uneven lighting of PV cells complicates the implementation of the mathematical model and simulation calculations aimed at determining the real energy yield, which makes it necessary to use advanced methods and computational tools [10][11][12]. The quantitative determination of the value of generated power is an important parameter necessary in calculating the energy storage capacity in autonomous systems or emergency supply of various facilities or vehicles [13][14][15][16]. However, the BIPV market, priced by the "n-tech Research" organization in 2015 at about 3000 million dollars, should reach the value of 7000 million dollars in 2018, while by 2022 it will exceed the value of 26000 million dollars.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the impact of a flexible photovoltaic tile shape on its performance

et al. 2018

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Abstract. This paper addresses the subject of the building integrated photovoltaics (BIPV). The flexible thin-film CIGS module has been subjected to testing in order to investigate its electrical parameters and the possibilities of adaptation to the building structure. During analysis of performance of the tested building in real conditions, particular attention has been paid to changes in its parameters depending on the inclination angle and the shape of its surface in relation to the incident solar radiation. Current-voltage characteristics and power curves in the selected configuration of module deflections have been analysed. Changing the module's inclination angle from the optimal 40 to 0 (horizontal arrangement of the module on the ground) reduced the value of generated current (by approx. 26%), voltage increase (by approx. 4%) and output power reduction by approx. 25%. The module generated a lower power compared to the basic test due to the irradiation limit reaching its surface (decrease in the irradiance value of less than 60% from 800 to 330 W/m 2 ). Bending the module at an angle 90 to the ground affected the large unevenness of solar radiation values reaching its surface and even greater losses of generated energy. The values of idle voltage, short-circuit current and voltage in MPP did not change much in relation to the base measurement, however, a large drop in the value of current in MPP was noted, which led to a significant reduction of output power. Thus, the need to strive for the most advantageous exposure of BIPV elements in relation to the sun was demonstrated and the losses on energy yields resulting from the integration of photovoltaic tiles into the body of the building have been estimated.

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“…For energy companies, this is a task which is difficult to perform, taking into account the periods during which fluctuations of balance between the energy demand and supply may occur. These periods could refer to situations when the demand exceeds the productive capacity of units or when the excessive generation coming from renewable energy sources takes place [8,9,10,11,12]. The precise control of the technical condition of the power grid and the appropriate monitoring systems for electricity parameters (voltage, current and frequency) are necessary for the proper functioning of the system, avoiding the emergency conditions, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…In reference to the smart grids, it must be taken into account that this is an element whose task is to process the collected data. The change in the generation is related to the use of additional sources and energy storages such as: pumped-storage power plants [20], compressed air energy storages [21], fuel cells [22], battery packs [23,24], flywheel energy storages [25] or supercapacitors [26]. The division of the said storages is described in papers [15,27,28].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the impact of electric vehicles on the power grid

2018

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Abstract. The paper presents problems related to the impact of electric vehicles connected to the power grid on energy parameters. Basic methods of control in power grids were discussed and results of the simulation were presented with regards to the power distribution, voltage drops and losses in the transmission lines. The simulation was conducted based on the example of CIGRE 11, to which electric vehicle charging stations were connected in several selected points, with the possibility of energy release into the grid. The obtained results were compared for the simulation conducted in two variants -without the connected electric vehicles and with them. The obtained results were analyzed and commented upon.

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Modelowanie pracy superkondensatora zasilającego układ poprawiający bezpieczeństwo drogowe

Cited by 7 publications

References 5 publications

Analysis of the impact of thermal resistance of the roof on the performance of photovoltaic roof tiles

Analysis of the impact of thermal resistance of the roof on the performance of photovoltaic roof tiles

Analysis of the impact of a flexible photovoltaic tile shape on its performance

Analysis of the impact of electric vehicles on the power grid

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