Abstract

Abstract-Due to the rapid development in power electronic devices and their control schemes flexible ac transmission devices makes tremendous changes in power systems network related issues in conventional power system configuration. This paper proposes multilevel Unified Power Flow Controller for the solution of Transmission Congestion control. In this circuit configuration a novel clamped multilevel architecture is used for voltage source converters modeling which is located in series and shunt connections of UPFC. In spite of conventional methods VSC based multi level UPFC configuration is used to improve Voltage Profile characteristics in contemporary power configuration.

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