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Unified Power Flow Controller (UPFC) is recognized as the most powerful flexible AC transmission systems (FACTS) device for power system. This paper presents a review of the most powerful FACTS device UPFC (Unified The potential benefits of FACTS equipment are now widely recognized by the. BENEFITS OF FACTSRegulation of power flows in prescribedtransmission routes .Reduces the need for construction of newtransmission lines.

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This article about electric power is a stub.

The main advantage of the UPFC is to control the active and reactive power flows in the transmission line. Views Read Edit View history.

Unified power flow controller – Wikipedia

Languages Deutsch Edit links. The UPFC operates only under balanced sine wave source.

Electric power stubs Electricity. A new approach to power transmission control” PDF. This page was last edited on 29 Novemberat This article relies largely or entirely on a single source.

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It uses a pair of three-phase controllable bridges to produce current that is injected into a transmission line using a series transformer. The controller can control active and reactive power ot in a transmission line. The controllable parameters of the UPFC are reactance in the line, phase angle and voltage.

Relevant discussion may be found on the talk page. The UPFC uses solid state devices, which provide functional flexibility, generally not attainable by conventional thyristor controlled systems.

If there are any disturbances or faults in the source side, the UPFC will not work. Archived from the original PDF on By using this site, you agree to the Terms of Use and Privacy Policy.

A unified power flow controller electrical device for providing fast-acting reactive power compensation on high-voltage electricity transmission networks. Articles needing additional references from September All articles needing additional references All stub articles.

From Wikipedia, the free encyclopedia. Please help improve this article by introducing citations to additional sources.

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Retrieved from ” https: You can help Wikipedia by expanding it. Unified Power Flow Controller UPFCas a representative of the third generation of FACTS devices, is by far the most comprehensive FACTS device, in power system steady-state it can implement power flow regulation, reasonably controlling line active power and reactive power, improving the transmission capacity of power system, and in power system transient state it can realize fast-acting reactive power compensation, dynamically supporting the voltage at the access point and improving system voltage stability, moreover, it can improve the damping of the system and power angle stability.