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Wyświetlanie 1-2 z 2
Tytuł:
Multi-objective optimal allocation and sizing of hybrid photovoltaic distributed generators and distribution static var compensators in radial distribution systems using various optimization algorithms
Autorzy:
Zellagui, Mohamed
Belbachir, Nasreddine
El-Bayeh, Claude Ziad
Bekkouche, Benaissa
Powiązania:
https://bibliotekanauki.pl/articles/41185993.pdf
Data publikacji:
2023
Wydawca:
Politechnika Warszawska, Instytut Techniki Cieplnej
Tematy:
renewable sources
radial distribution system
photovoltaic distributed enerators
distribution static var compensator
źródła odnawialne
systemy dystrybucji promieniowej
generator fotowoltaiczny
Opis:
In the recent years, a considerable growth was about the integration of renewable sources in the Radial Distribution Systems (RDS), as Photovoltaic Distributed Generators (PVDG) due to their importance in achieving plenty desired technical and economic benefits. Implementation of the Distribution Static Var Compensator (DSVC) in addition to the PVDG would be one of the best choices that may provide the maximum of those benefits. Hence, it is crucial to determine the optimal allocation of the devices (PVDG and DSVC) into RDS to get satisfactory results and solutions. This paper is devoted to solving the allocation problem (location and sizing) of hybrid PVDG and DSVC units into the standards test systems IEEE 33-bus and 69-bus RDSs. Solving the formulated problem of the optimal integration of hybrid PVDG and DSVC units are based on minimizing the proposed Multi-Objective Functions (MOF) which is represented as the sum of the technical-economic parameters of Total Active Power Loss (TAPL), Total Reactive Power Loss (TRPL), Total Voltage Deviation (TVD), Total Operation Time (TOT) of the overcurrent relays (OCRs) installed in the RDS, the Investment Cost of PVDGs (ICPVDG) and the Investment Cost of DSVC (ICDSVC)), by applying various recent metaheuristic optimization algorithms. The simulation results reveal the superiority and the effectiveness of the Slime Mould Algorithm (SMA) in providing the minimum of MOF, including minimization of the powers losses until 16.209 kW and 12.110 kVar for the first RDS, 4.756 kW and 7.003 kVar for the second RDS, enhancing the voltage profiles and the overcurrent protection system. Based on the paper’s results it is recommended to optimally integrate both PVDG and DSVC units into practical distribution networks.
Źródło:
Journal of Power Technologies; 2023, 103, 2; 89-103
1425-1353
Pojawia się w:
Journal of Power Technologies
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 1-2 z 2

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