Interesting
From the SelectedWorks of Dr. ASADOLLAH KAZEMI
Winter November 9, 2013
Section 4: Reactive Power Control Course
asadollah kazemi
Available at: http://works.bepress.com/asadollah_kazemi/24/
11/8/2013
‫ م او و ن‬
(
27 . 72 $/ M WH
0 . 00 $/ M VR H
2 78 M W
- 24 M VR
A re a O ne
786 MW
5 1 M VR
B us 3
1. 0 4 P U
4 08 M W
44 M VR
10 0 M W
30 MVR
-2 5 7 M W
11 0 M V R
-7 3 M W
Bu s 1
12 2 M V R
3 3. 5 2 $ / MW H
0. 0 0 $ / MV R H
1.04 PU
1 70 MW
3 32 MV R
A rea T wo
- 3 77 MW
4 9 M VR
77 MW
-1 0 7 M VR
50 0 M W
10 0 M V R
3 2 .8 2 $ / MW H
1 .0 5 $ / MV R H
0 . 96 3 1 P U
Bus 2
3 00 MW
1 00 MV R
42 MVR
Presenter : Asadollah Kazemi
Available at : http://works.bepress.com/asadollah_kazemi/
1
11/8/2013
‫موسسه آموزش عالي كاوش‬
Porter SVC
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Porter Static Var Compensator (SVC)
Maintains
system voltage
by continuously
varying VAR
output to meet
system
demands.
Controls
capacitor banks
on the
transmission
system to match
reactive power
output to the
load
requirements.
Series Capacitor –
Dayton Bulk 230kV Station
The Capacitor
offsets
reactance in the
line, making it
appear to the
system to be
half of its actual
length. Power
flows are
redirected over
this larger line,
unloading
parallel lines
and increasing
transfer
capability.
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Static compensator (STATCOM)
• Voltage source converter device
• Alternating voltage source behind
a coupling reactance
• Can be operated at its full output
current even at very low voltages
• Depending upon manufacturer's
design, STATCOMs may have
increased transient rating both in
inductive as well as capacitive
mode of operation
System bus
V
Transformer
I
X
E
DC-AC switching converter
Cs
Vdc
Schematic diagram of STATCOM
Natchez DVAR
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Metro
138 kV
34.5 kV
T
M
34.5 kV
FDR
25.2
MVAR
34.5 kV
480 V
D-VAR
4