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    Wyświetlanie 1-4 z 4
    Tytuł:
    The Use of PMU Data for Detecting and Monitoring Selected Electromagnetic Disturbances
    Autorzy:
    Barczentewicz, Szymon H.
    Bień, Andrzej
    Duda, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/1844459.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    electrical disturbances
    phasor measurement unit
    power quality
    distribution system
    Opis:
    Power quality (PQ) monitoring is important for both the utilities and also the users of electric power. The most widespread measurement instrument used for PQ monitoring is the PQM (Power Quality Monitor) or PQA (Power Quality Analyzer). In this paper we propose the usage of PMU data for PQ parameters monitoring. We present a new methodology of PQ parameters monitoring and classification based on PMU data. The proposed methodology is tested with real measurements performed in distribution system using dedicated PMU system.
    Źródło:
    International Journal of Electronics and Telecommunications; 2020, 66, 4; 775-780
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Monitoring of PV Inverters while Unintentional Islanding Using PMU
    Autorzy:
    Barczentewicz, Szymon Henryk
    Lerch, Tomasz
    Bień, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/1844496.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    electrical disturbances
    phasor measurement unit
    power quality
    PV inverters
    Opis:
    Unintentional islanding detection is one the mandatory criterion that must be met by PV inverters before connecting them into the grid. Acceptable time for inverter for islanding detection is less than 2 seconds. In this paper voltage parameters after islanding occurrence and before turning off the inverter are analyzed. In order to simulate islanding state and perform measurements the testing system was build. Three different commercial PV inverters were tested. Measured signals were used to calculate voltage envelope, phasor, frequency and ROCOF. Collected data proved to be helpful to compere different inverters.
    Źródło:
    International Journal of Electronics and Telecommunications; 2021, 67, 3; 465-470
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A review of the importance of synchrophasor technology, smart grid, and applications
    Autorzy:
    Baba, Maveeya
    Nor, Nursyarizal B.M.
    Sheikh, Aman
    Nowakowski, Grzegorz
    Masood, Faisal
    Rehman, Masood
    Irfan, Muhammad
    Arefin, Ahmed Amirul
    Kumar, Rahul
    Baba, A. Momin
    Powiązania:
    https://bibliotekanauki.pl/articles/2173713.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    phasor measurement unit
    PMU
    micro-PMU
    Global Positioning System
    GPS
    optimal PMU placement
    smart grid
    SG
    jednostka pomiaru fazorów
    mikro-PMU
    globalny system pozycjonowania
    optymalne rozmieszczenie PMU
    sieć inteligentna
    Opis:
    The electrical network is a man-made complex network that makes it difficult to monitor and control the power system with traditional monitoring devices. Traditional devices have some limitations in real-time synchronization monitoring which leads to unwanted behavior and causes new challenges in the operation and control of the power systems. A Phasor measurement unit (PMU) is an advanced metering device that provides an accurate real-time and synchronized measurement of the voltage and current waveforms of the buses in which the PMU devices are directly connected in the grid station. The device is connected to the busbars of the power grid in the electrical distribution and transmission systems and provides time-synchronized measurement with the help of the Global Positioning System (GPS). However, the implementation and maintenance cost of the device is not bearable for the electrical utilities. Therefore, in recent work, many optimization approaches have been developed to overcome optimal placement of PMU problems to reduce the overall cost by providing complete electrical network observability with a minimal number of PMUs. This research paper reviews the importance of PMU for the modern electrical power system, the architecture of PMU, the differences between PMU, micro-PMU, SCADA, and smart grid (SG) relation with PMU, the sinusoidal waveform, and its phasor representation, and finally a list of PMU applications. The applications of PMU are widely involved in the operation of power systems ranging from power system control and monitor, distribution grid control, load shedding control and analyses, and state estimation which shows the importance of PMU for the modern world.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 6; art. no. e143826
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synchrophasors-based transmission line protection in the presence of STATCOM
    Autorzy:
    Ghorbani, Amir
    Powiązania:
    https://bibliotekanauki.pl/articles/41184010.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Warszawska, Instytut Techniki Cieplnej
    Tematy:
    flexible AC transmission system (FACTS)
    controllers
    ground distance relay
    phasor measurement unit
    static synchronous compensator
    smart grid
    elastyczny system transmisji prądu przemiennego
    kontrolery
    przekaźnik odległości naziemnej
    jednostka miary fazora
    statyczny kompensator synchroniczny
    inteligentna sieć
    Opis:
    The distance relay using the transmission line impedance measurement identifies the type and location of the fault. However, any other factors that cause the failure of the measured impedance, makes the relay detect the fault in incorrect location or do not detect the fault at all. One of these factors is the fault resistance which directly increases the measured impedance by the relay. Another factor that indirectly alters the impedance of the transmission line is static synchronous compensator (STATCOM). When a fault happens, current injection by the STATCOM changes the measured signals by the relay and thus makes the calculated impedance incorrect. In this paper, a method is provided based on the combination of distance and differential protection. Firstly, from the current data of buses, faulted transmission line is detected. Then using the presented algorithm, the fault location is calculated on the transmission line. The basis of the algorithm is on the active power calculation of the buses. Fault resistance is calculated from the active powers and its effect will be deducted from calculated impedance by the algorithm. Furthermore, with choosing data of appropriate bus, STATCOM effect is eliminated, and fault location will be obtained.
    Źródło:
    Journal of Power Technologies; 2023, 103, 1; 58-71
    1425-1353
    Pojawia się w:
    Journal of Power Technologies
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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