D. Menniti, A. Pinnarelli
Electronic, Computer and System Science Department

U. De Martinis, A. Andreotti
Electric Engineering Department

Abstract
Flexible AC Transmission Systems (FACTS) use power electronic components to enhance controllability and capability of electrical power system. FACTS devices are able of opportunely modify voltage, phase angle and/or impedance and then the power flows at particular points in power systems . One of the more intriguing and potentially most versatile class of FACTS device i ....etc

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CONTROL AND ANALYSIS OF A UNIFIED POWER FLOW CONTROLLER

PRESENTED BY:
A.AMITHA
A.GAYATHRI
P.B.KALYANI
G.BHARATHA LAXMI

AIM:
THE MAIN AIM OF OUR PROJECT IS TO
INCREASE THE POWER CONTROL OR VOLTAGE
CONTROL IN A TRANSMISSION LINE USING
UPFC(UNIFIED POWER FLOW CONTROLLER).

WHAT DO WE MEAN BY UNIFIED POWER FLOW CONTROLLER?
A UNIFIED POWER FLOW CONTROLLER (UPFC) IS A DEVICE WHICH IS USED IN FACTS (FLEXIBLE AC TRANSMISSION SYSTEMS) DEVICES.
THERE ARE MANY KINDS OF FACTS DEVICES. THEY ARE:
DYN ....etc

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I want PPT on Single phase UPFC
as my project is simulation using UPFC ....etc

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Usefulness of DC Power Flow for Active Power Flow Analysis



I. INTRODUCTION
STATIC power system analysis has always been
performed using full power flow. It is one of the
fundamental tools for power system analysis and is used in
the operational as well as planning stages. Vertically
integrated companies have used it to control their systems, as
well as to plan the optimal economic operation of generation
resources, either by means of optimal power flow or unit
commitment. ....etc

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Unified Power Flow Controller

INTRODUCTION

Two main objectives of FACTS

Increase the TX capability of AC line
Control of power flow over the TX routes

UPFCs - most effective FACTS device

UPFC a device which control TX line impedance, voltage and phase angle



BASIC CONSTRUCTION OF A UPFC

Consists of two switching GTO converters
Shunt-connected
Series-connected

Both converters can operate in a rectifier mode or in an inverter mode

A DC branch links these two converters by a sto ....etc

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