Nypa - Bhattacharya - Nypa Facts Csc System

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

Future Renewable Electric Energy Delivery and Management Systems Center

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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


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


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

Convertible Static Compensator (CSC) - Marcy Substation

FACTS

6

6

Convertible Static Compensator (CSC) Inverter Hall

FACTS

7

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


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


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


(AC network simulator not shown)

TNA NYPA CSC TNA Model


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TNA NYPA CSC STATCOM response to line-GND faultresponse to line GND fault


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


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


CSC Converter System in RSCAD / RTDS


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24-pulse STATCOM in RSCAD / RTDSS

Converter

System


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


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.


p p

Comparison between Field and RSCAD results


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%


-200350 400 450 500 550 600 650

P (MW)

Thanks!Thanks!


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CSC 345 kV, 100 MVA Series Transformer


CSC 345 kV, 200 MVA Shunt TransformerShunt Transformer



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Nypa - Bhattacharya - Nypa Facts Csc System