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    Wyświetlanie 1-3 z 3
    Tytuł:
    Short-Circuit Current Contribution from Large Scale PV Power Plant in the Context of Distribution Power System Protection
    Autorzy:
    Bejmert, D.
    Sidhu, T. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/410525.pdf
    Data publikacji:
    2012
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    grid-connected PV power plant
    transient analysis
    fault contribution
    overcurrent protection
    Opis:
    The interconnection of distributed generators (DG) to existing network may give rise to many technical problems. To ensure appropriate power quality and stability of the grid these problems should be recognized and solved. For this purpose, behaviour of such energy sources, under various disturbances, must be studied and known to the distribution grid operators. In this paper fault current contribution from large scale photovoltaic (PV) power plant as well as protection issues concerning such DGs are discussed. The mentioned problems were investigated in PSCAD model of 50 MW grid--connected PV power plant where various operating condition of the network and penetration levels of PV were considered.
    Źródło:
    Present Problems of Power System Control; 2012, 2; 85-96
    2084-2201
    Pojawia się w:
    Present Problems of Power System Control
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experimental performance characterization and economic efficiency of 16.28 kWp grid-tied PV systems in semi-arid climate
    Autorzy:
    Khennane, Messaouda Benbitour
    Boughali, Slimane
    Bechki, Djamel
    Zaghba, Layachi
    Fezzani, Amor
    Mahammed, Idriss Hadj
    Powiązania:
    https://bibliotekanauki.pl/articles/1840902.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    grid connected PV system
    performance evaluation
    sandstorm
    Saharan environment
    economic benefits
    system fotowoltaiczny
    ocena wydajności
    korzyści ekonomiczne
    Sahara
    Opis:
    The study of the paper aims to present a solar power plant performances and economic benefits of 16.28 kWp grid-tied solar PV systems under the real outdoor conditions of Ghardaïa, located in semi-arid area of the Algeria desert. The main goal of this study is to investigate the effectiveness, suitability, feasibility and reliably of these plants on the level of desert areas and under the influence of harsh conditions (desert environment) in the first part. In the second part, the contribution of solar PV plant to conventional networks in the arid and semi-arid environment to assess the rate of integration. Based on experimental measurement data, the paper also shows economic benefits of three photovoltaic plants. It was found that from the first January to last August 2019, the total produced energy by all PV arrays was 171.422 MWh which supplied to the internal grid and while, the consumed energy by the URAER unit was 159,094 kWh. Approximately 10, 95 % of the 159,094 MWh energy consumed in the whole year is provided from the generated PV solar energy that is 17,422 MWh. The total energy fed to the internal grid has grown from 27 MWh in 05/04/2018 to a maximum of 67.28 MWh recorded in 31/10/2019. The rate of integration of solar energy by all PV arrays in the internal network of the URAER varied between 6, 60% in January and 22, 96% in April. The integration of this renewable energy generation into the local grid in the URAER unit considered satisfactory over this period of operation. From the first January to last August 2019, the cost of electrical energy produced by solar plants is 2090,64 euro(277706,68 Algerian dinars) while the cost of energy consumed by the Applied Research Unit in renewable energies is 4772,82 euro(664853,826 Algerian dinars).
    Źródło:
    Diagnostyka; 2021, 22, 2; 53-65
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Energy and environmental performance analysis of grid-connected photovoltaic systems under similar outdoor conditions in the Saharan environment
    Autorzy:
    Deriche, Mohammed Amine
    Hafaifa, Ahmed
    Tahri, Ali
    Mohammedi, Kamal
    Tahri, Fatima
    Powiązania:
    https://bibliotekanauki.pl/articles/328057.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    performance assessment
    Saharan outdoor conditions
    grid-connected PV
    thin film photovoltaic modules
    energy payback
    greenhouse gases emissions
    system fotowoltaiczny
    energia
    emisja gazów cieplarnianych
    ocena wydajności
    Sahara
    Opis:
    The aim of this paper is to present a one-year performance analysis of four grid-connected PV systems installed at Ghardaia city in Algeria’s Sahara. The grid-connected PV systems are based on four different PV module technologies which are: monocrystalline silicon (m-Si), multi-crystalline silicon (mc-Si), cadmium telluride (Cd-Te) and amorphous (a-Si) PV module technologies. The PV systems based on the thin film technologies have their performance ratio better throughout the year when the performance ratio of the mc-Si technology is better in the winter season. The a-Si PV system has its performance ratio about 6.13 % more better than mc-Si and 8.90 % better than m-Si. The AC energy produced with the a-Si PV system is 13.32 % more than what the mc-Si system produces. It was found that the a-Si PV system performs better than the other technologies under the Saharan climate conditions of Ghardaia city. The energy payback time (EPBT) and greenhouse gases (GHG) emissions of the different PV systems were analyzed. The EPBT and GHG emissions per year, vary from a minimum value of 2.8 years to a maximum value of 5.73 years and from 13.24 tons to 32.03 tons of CO2/kWh for CdTe and m-Si respectively. The CdTe PV system performs better in terms of EPBT and GHG emissions compared to the other technologies (m-Si, mc-Si and a-Si) due to its low life cycle energy requirement.
    Źródło:
    Diagnostyka; 2020, 21, 2; 13-23
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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