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Power system reliability enhancement by using PowerformerTM

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Author(s): Rahmat-Allah Hooshmand | Moazzami Majid | Nasiri Akbar Ali

Journal: Serbian Journal of Electrical Engineering
ISSN 1451-4869

Volume: 6;
Issue: 2;
Start page: 315;
Date: 2009;
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Keywords: power systems reliability | PowerformerTM | expected duration of load curtailment (EDLC) | expected energy not served (EENS)

ABSTRACT
A high-voltage generator PowerformerTM is a new generation of the AC generators. The most significant advantages of these PowerformerTM are their direct connection to high-voltage grid, higher availability, and more reactive power margin, short term overloading capacity and removing the power transformer from the structure of the power plant. In this paper, the installation effect of these generators on the power system reliability is investigated. The amount of the effects depends on the type and location of the power plant, location of the PowerformerTM, the size of load and network topology. For this purpose, in the 6-bus IEEE RBTS system, the conventional generators are replaced by these new PowerformerTM and then, the reliability indices are evaluated. The simulation results show that the reliability indices such as the expected duration of load curtailment (EDLC) and the expected energy not served (EENS) are improved. .
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