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 ....etc

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Ulaş Eminoğlu, M. Hakan Hocaoğlu

ABSTRACT
In this paper, the convergence ability of Distribution Systems Power Flow Algorithms, which are widely used for distribution systems analysis, is compared with different voltage-dependent load models. The convergence ability of methods are also evaluated for different tolerance values, voltage levels, loading conditions and R/X ratios, under the wide range exponents of loads. Results show that Ratio-Flow method is preferable from other ....etc

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Incorporation of FACTS Controllers in Newton Raphson Load Flow for Power Flow Operation, Control and Planning: A Comprehensive Survey
Abstract-
This paper presents a comprehensive survey ofincorporation of FACTS controller such as SVC, TCSC,SSSC, STATCOM, UPFC, and IPFC devices in Newton-Raphson load flow (NRFL) for power flow control. Thepurpose of this paper is to present a comprehensive surveyof various FACTS controllers are incorporated in loadflow analysis for different point of view such as optimalpower flow control, planning an ....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 flo ....etc

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This article is presented by:1K.CHANDRASEKARAN 2K.ARUL JEYARAJ 3L.SAHAYASENTHAMIL
4DR. M.SARAVANANA NEW METHOD TO INCORPORATE FACTS DEVICES
IN OPTIMAL POWER FLOW USING PARTICLE SWARM
OPTIMIZATION

ABSTRACT
In this work, Particle Swarm Optimization (PSO) for the solution of the optimal power flow (OPF) with use of controllable FACTS devices is studied. Two types of FACTS devices, thyristor controlled series compensator (TCSC) and thyristor-controlled phas ....etc

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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 potentia ....etc

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ABSTRACT
In recent years, digital computer is becoming most appropriate tool to solve any engineering problem. In last two decades number of programs have been developed for computers in solving power system problems. Many of these programs deal with system load flow, short circuit currents, stability, and for control of power systems. The higher percentage of proper utility of computers in distribution systems saves engineering time and investment.
All the time the distribution engineer encounters th ....etc

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Solutions to Practical Unit Commitment Problems with Operational, Power Flow and Environmental Constraints
Presented By:
I. Jacob Raglend and Narayana Prasad Padhy1


Abstract”
In this paper, an algorithm to solve environmental constrained unit commitment problem (UCP) with operational and power flow constraints has been developed to plan an economic and secure generation schedule. Both Economic load dispatch (ELD) and Economic emission dispatch (EED) have been applied to obtai ....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).


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