facts final
DESCRIPTION
FACTS ElectricalTRANSCRIPT
7/17/2019 FACTS Final
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A
SEMINAR
ON “FLEXIBLE AC TRANSMISSION SYSTEM”
Submitted By:-
PIYUSH KUMARRoll No-
07ESBEE204
Guided By:-
Mr. Rahul Sharma
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INTRODUCTION
Today due to increasing demand of electric
power, the existing transmission nw in the
de!eloped country are found to "e wea#
which results in the poor $uality ofunrelia"le supply%so in order to expand or
enhance the power transfer capa"ility of
N& a new programme is de!elopedwhich
is #nown as 'A(TS%
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FLEXIBLE AC TRANSMISSION
SYSTEM
A power electronic
based system and other
static equipment thatprovide control of one or
more AC transmission
system parameters to
enhance controllability
and increase power
transfer capability.
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Role of Power ElectronicsRole of Power Electronics
The power electronics
interface facilitates
the transfer of power
from the source to the
load by converting
voltages and currents
from one form toanother .
~ LConverter ource !utput to Load
- Ad"ustable #C- inusoidal AC
- $i%h-frequency ACController
&ower 'lectronics
(nterface
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)Impro!ed power transmission capa"ility%
)Impro!ed system sta"ility%
)Impro!ed power $uality%
)Minimal en!ironmental impact%
)Minimi)ed transmission losses%
Benefits of facts
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*he two main reasons for incorporatin%+AC* devices in electric power systems are:
,aisin% dynamic stability limits.
&rovide better power flow control.
Reasons for operating the FACTS
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hen we discuss the creationmovement and utili/ation of electrical
power it can be separated into three
areas :-
0.Generation
1.*ransmission
2.#istribution
Power System Control
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Controllability of &ower ystem
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e 3now that
*hree main variables that can be directly
controlled in the power system to impact itsperformance. *hese are :
a. 4olta%e
b. An%lec. (mpedance
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Example of Conventional Equipment or
Enhancing !ower System Control
eries Capacitor
-Controls (mpedance
witched hunt-Capacitor and ,eactor
-Controls 4olta%e
&hase hiftin% *ransformer
-Controls An%le
ynchronous Condenser
-Controls 4olta%e
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Example of "CTS Controllers or Enhancing
!ower System Control
tatic ynchronous Compensator5*A*C!67 -Controls 4olta%e
tatic 4ar Compensator54C7
-Controls volta%e
8nified &ower +low Controller58&+C7tatic ynchronous eries Controller5C7
-Controls 4olta%e(mpedancean%le
*hyristor Controlled tatic Compensator5*CC7
-Controls (mpedance
*hyristor Controlled &hase hiftin% *ransformer5*C&*7
-Controls An%le
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#ifference between Mechanical $rea%er action and
Thyristor Switch action
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&verview &f "CTS Controller Circuits
0.tatic 4ar Compensator54C7
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*he first commercial 4C was installed
in 091.
!n transmission level it is used in
099.
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1.tatic ynchronous Compensator5*A*C!67
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2.*hyristor Controlled eries Compensator5*CC7
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(t increases dampin% when lar%eelectrical system are interconnected.
*he first *CC was commissionedin 099;.
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<.8nified &ower +low Controller58&+C7
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=.tatic ynchronous eries Compensator5sssc7
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teady state 4olta%e re%ulation and
control
teady state control of power flow ona
transmission line
*ransient stability enhancement#ampin% at transmission system
oscillation frequencies 5>.1 ? 1 $/7.
Conclusion
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