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NYPA FACTS CSC System Subhashish Bhattacharya
Dr Bruce Fardanesh NYPADr. Bruce Fardanesh, NYPAStudents: Babak Parkhideh, Zhengping Xi
Saman Babaei
North Carolina State University
FACTS and HVDC User Meeting
Outline
VSC based FACTS Control System Structure and Convertible Static Compensator (CSC) Control System p ( ) yOverview
CSC Configurations and Control Modesg
Control boards
FACTS Simulator (TNA) testing and Control HIL (Hardware-in-the-loop) control testing
Control system upgrade plan
Other potential FACTS sites – AEP TVA KEPCO
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Other potential FACTS sites AEP, TVA, KEPCO, PG&E, SMI/CMC steel
Convertible Static Compensator (CSC) - Marcy SubstationFACTS
Increase power transfer by total of 240MW by CSC
3
Convertible Static Compensator (CSC) - Marcy SubstationFACTS
Marcy 345kV SC is 18,000 MVA
M a r c y 3 4 5 k VN o r t h B u s
V o ln e y A T 1 A T 2
MVA
There are 11 H S BM a r c y 3 4 5 k V
S o u t h B u sN e w
S c o t la n d( U N S )
possible configurations
T R S H
H S B
E d ic
T R - S E 1
T R - S E 21 0 0 M V A
( U N S )
C o o p e r sC o r n e r s
( U C C )
H V C B
• STATCOM
• SSSC
T R - S H2 0 0 M V A
T B S 1
L V C B
T B S 2
L V C B1 0 0 M V A
• UPFC
• IPFC S W D C
4
IN V E R T E R 11 0 0 M V A
D C B u s 1 D C B u s 2 IN V E R T E R 21 0 0 M V A
Convertible Static Compensator (CSC) - Marcy SubstationFACTS
The inverters can operate independently p yor together with the DC bus switch closed
CSC has 11 configurations
• STATCOM
• SSSC
• UPFC
• IPFC
5
On the fly transitions
Objectives
FACTS Control System – upgrade8 VSC FACTS sites – 1 NYPA, 1 TVA, 3 AEP, 1 , , ,
PG&E, 1 KEPCO, 1 SMI/CMC steelControl system upgrade to a commercial controls
platform Life extension of these FACTS projectsplatform - Life extension of these FACTS projectsMigration and validation of existing controls on a standard
simulator (RTDS) platform( ) p
Development of RTDS Simulator (TNA) for any FACTS p ( ) ycontrols and Control HIL (Hardware-in-the-loop) testing
Provide platform for evaluation of FACTS controllers for system study and planning tool
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controllers for system study and planning tool Development, upgrade and testing of HMI tool
7TH FACTS User‘s Group Meeting, Austin, TX, Nov. 3-5, 2004 9NYPA CSC Controls Provide Different Modes For
Each Power Circuit ConfigurationFACTS
line2 line1
line1
V
I
I
Vbus
line2V
INVERTER
2 reference
2
I inv2
1 reference
NO.1E1
E
inv1I
dc1 dc2V V NO. 2E
E
INVERTER
2 reference1 reference
CONTROLIPFC
PRIMARYCONTROL
MODE
UPFC SERIESINV. CONTROL
VOLTAGE INJECTIONMODE
CONFIGURATION/MODE SELECTOR
CONTROLREACTIVE VOLTAGE
INJECTION MODE
STATCOM
VOLTAGE CONTROL
CONTROL
MODE
CONTROL INV. CONTROLREACTIVE VOLTAGE
INJECTION MODE VOLTAGE INJECTIONMODE
CONFIGURATION/MODE SELECTORSSSC UPFC SERIES
CONTROLCONTROL
VOLTAGE CONTROLMODEMODE
PRIMARYCONTROL
STATCOMIPFC SSSC
inject reference,Q
VP
dc2
V
REACTIVE VOLTAGEINJECTION MODE
MODE
inject reference
AUTOMATIC POWERFLOW CONTROL
MODE
MODE
,Q
dc2 Iline2 reference
line2line2 reference
line2I
inject reference Vline2 reference P
VVline2
AUTOMATIC POWERFLOW CONTROL
VAR CONTROL
MODE
MODE
VAR reserve level
Var referenceV
Slope factor
bus reference
REACTIVE VOLTAGEAUTOMATIC POWER
inject reference
FLOW CONTROL
line1 referenceline1
VP
line1V dc1 I V
MODE
inject referenceVline1 reference
line1
,QPIVdc1
AUTOMATIC POWERFLOW CONTROL
MODE
MODE
bus referenceVar reference
VAR reserve levelSlope factor
VAR CONTROLMODE
MODE
Vinject referenceVline1 reference,QP
dc1V I line1
INJECTION MODE
MODE
V
line2
P
dc2V I
MODE
dc2busV
dc2 line2line2
line2busVV line2V
line2VAR reserve levelVbus Iinv1
line1dc1V
line1dc1Vline1
line1Vdc1
busVAR reserve level
busline1dc1
Vline1
busV V inv2I dc2Vline2dc2
Central Controls Comm. with VSC Poles
O ti l Fib
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Optical Fibers
FACTS Controls Upgrade Plan
Phase I: Develop a RTDS based digital TNA simulator for a variety of VSC-based FACTS controller platforms The NYPA CSC system will becontroller platforms. The NYPA CSC system will be used to test the simulator.
Develop PSCAD based detailed simulation of the pac system, VSC converter topology, controls (exacting as implemented in the field)
Include VSC and system level protection, switchyard devices with open/close timingy p g
Verify developed model with commissioning test
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y p gresults and TNA test results
FACTS Controls Upgrade Plan
Phase II: RTDS hardware and CSC system and controller setup on the RTDS simulator system
Verification of the FACTS controller models on the RTDS system results with TNA results and CSC commissioning test resultsgEvaluation of the possible interface of the HMI “Genesis” with the CSC system on RTDS
Phase III: Control system upgrade to a commercial controls platformcontrols platform
To provide a testbed for hardware-in-the-loop (HIL) testing and verification of a commercial
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( ) gvendor control system for CSC/FACTS system
Control TNA Studies
Thoroughly test and validate control system
Steady stateSteady state characteristicsResponse to control set point changesBehavior during system transientsProtective functions
11 possible equipment11 possible equipment configurationsVarious inverter control modes in each configurationDifferent fault types/locations‘P k’ d ‘li ht’ t
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‘Peak’ and ‘light’ system load conditions
TNA NYPA CSC TNA Model
Inverter models Actual control boards
Transformer models Operator
Interface
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(AC network simulator not shown)
TNA NYPA CSC STATCOM response to line-GND faultresponse to line GND fault
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NYPA CSC Converter Waveform Analysis with MATLABy
Line to Phase A Conv 1
Construction of 48 pulse voltage based on NYPA
line voltage
based on NYPA converters concept in MATLAB.(the voltage
Phase A Conv 2
(the voltage amplitude is not the same as NYPA and only wave
Phase A Conv 3
wave construction has been considered.) Phase
voltagePhase A Conv 4
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Confidential DocumentS.Bhattacharya
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CSC Converter System performance in PSCAD
48 pulse Line to
line VoltageVoltage
48 pulse48 pulse Phase to neutral Voltage
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CSC Converter System in RSCAD / RTDS
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24-pulse STATCOM in RSCAD / RTDSS
Converter
System
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Angle control (Iq control) STATCOM in RSCAD / RTDS
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STATCOM with Angle Control Results in RTDS
Iq: 0 pu → 0.8 pu Iq: 0 pu → -0.8 pu
0
50
100
kV
S1) N1 S1) N2 S1) N3
0
50
100
kV
S1) N1 S1) N2 S1) N3
10
20Vin1 Vin2 Vin3
-100
-50
102030
Vin1 Vin2 Vin3-100
-50
1IAP IBP ICP
-20
-10
0
1IAP IBP ICP
-30
-20-10
0
-1
-0.5
0
0.5
kA
0 01734 0 02653 0 03572 0 0449 0 05409 0 06328 0 07247-1
-0.5
0
0.5
kA
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0.01734 0.02653 0.03572 0.0449 0.05409 0.06328 0.07247 0.01734 0.02653 0.03572 0.0449 0.05409 0.06328 0.07247
STATCOM with Angle Control Results in RTDS
Iq: -0.8 pu → 0.8 pu Iq: 0.8 pu → -0.8 pu
0
50
100
kV
S1) N1 S1) N2 S1) N3
50
0
50
100
kV
S1) N1 S1) N2 S1) N3
0
10
20Vin1 Vin2 Vin3
-100
-50
10
20
30
Vin1 Vin2 Vin3-100
-50
0 666671
IAP IBP ICP-30
-20
-10
0
0 5
1IAP IBP ICP
-20
-10
0
0 018 0 02747 0 03693 0 0464 0 05586 0 06532 0 07479-1
-0.66667
-0.333330
0.33333
0.66667
kA
0.01734 0.02653 0.03572 0.0449 0.05409 0.06328 0.07247-1
-0.5
0
0.5
kA
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0.018 0.02747 0.03693 0.0464 0.05586 0.06532 0.07479
Instantaneous PLL (IPLL) in RTDS
IPLL based on instantaneous voltage
IPLL i RTDSIPLL in RTDS
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STATCOM w/ SLG fault in RTDS
50
100
VS1) N1 S1) N2 S1) N3
Vin1 Vin2 Vin3-100
-50
0kV
100
102030
Vin1 Vin2 Vin3
2IAP IBP ICP
-30
-20-10
-1 33333-0.66667
0
0.666671.33333
kA
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250 0.03333 0.06667 0.1 0.13333 0.16667 0.2-2
-1.33333
CSC Converter System RSCAD and PSCAD results
STATCOM performance when 40 MVArreactive power is injected to the bus
Injected reactive power to the bus and reference reactive power simulated by
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PSCAD
Controller performance in PSCAD and RSCAD
Injected reactive power to the bus
Injected reactive t th bpower to the bus
after flipping the switch from 0.4pu to
-0.4pu.
power to the bus after flipping the
switch from -0.4 puto 0.4pu.
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p p
Comparison between Field and RSCAD results
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UPFC on UNSComparison of field test & simulationp
150
UPFC with shunt inverter at 100% capacitive output of 100 MVAR
• Controllable real power
100 Field test
Simulationreal power range 255 MW
0
50M
VA
r)
• Controllable reactive power range 275
-100
-50Q (M
gMVAR
Line real
-150
• Line real power increased by 25%
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-200350 400 450 500 550 600 650
P (MW)
CSC 345 kV, 100 MVA Series Transformer
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CSC 345 kV, 200 MVA Shunt TransformerShunt Transformer
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