turbine generator baseline testing30 0 synchronize 0 reduce excitation to obtain 30mvar leading...

Turbine Generator Baseline Testing

John Undrill November 2015

The Overall Context

Understand the equipment you are going to test

Understand the modeling of the equipment at the grid-simulation level

Test the equipment, deduce parameter values, verify that simulations made with the models are correct

Maintain a stable data base to support the use of the models

Monitor the modeling continuously to check validity of models and condition of plants

The Overall Requirement

Expertise with test equipment, signal processing software, and equipment operation is NOT SUFFICIENT

Expertise with the operation of a dynamic simulation program and the mathematics of dynamic models are NOT SUFFICIENT

You have to understand the equipment at the level of its dynamic behavior

You have to understand the dynamic simulation process

Getting Ready

SURVEY THE PLANT Go to the plant Search for all available documentation Scan and read everything Photograph nameplates Review and record base values Generator MVA Turbine rated/nominal power Turbine head

SELECT THE MODELS Build up a pro-forma model Run pre-test simulations

MAKE THE TEST PLANS Step by step for control room MW chronogram for power schedulers

Power Scheduling Chronogram

-100

-50

0

50

100

150

200

250

300

6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00

Time

Gen

erat

or M

W

GTMWSTMWSTMVARGTVAR

0 50 100 150 200 250Field current, Amps

0

0.2

0.4

0.6

0.8

1

1.2

Stat

or v

olta

ge, p

u

Magnetization Curve Oildale Energy LM6000

Red - Ifd test Black - Ifd model Blue - Air Gap LineAFAG = 134.00s1 = 0.12 s12 = 0.40

-20 -15 -10 -5 0 5 10 15 20Reactive Power, per unit

0

0.5

1

1.5

2

2.5

3

Fiel

d C

urre

nt, p

er u

nit

V curve Oildale Energy LM6000

Red - Ifd test Black - Ifd modelBlue - voltage Magenta - power

Mbase = 50.50 MVALd = 2.100 Lq = 2.000s1 = 0.120 S12= 0.400Ll = 0.200 Kis= 0.080Ra = 0.0050 Afag= 134.0If0 = 0.000

0.3 0.2 0.1 0 0.1 0.2 0.3 0.4 0.50

0.5

1

1.5

2

2.5

3

Reactive Power, per unit

Fiel

d C

urre

nt, p

er u

nit

V curve Bonanza

Red Ifd test Black Ifd modelBlue voltage Magenta power

Mbase = 523.00 MVALd = 1.900 Lq = 1.750s1 = 0.130 S12= 0.400Ll = 0.300 Kis= 0.140Ra = 0.0000 Afag= 52.0

-0.2 -0.1 0 0.1 0.2 0.3Reactive Power, per unit

0

0.5

1

1.5

2

2.5

Fie

ld C

urre

nt, p

er u

nit

V curve Lancaster GT 2

Black - Ifd test R,G,B - Ifd model

Blue - voltage Magenta - power

Mbase = 234.00 MVA

Ld = 2.200 Lq = 1.900

s1 = 0.100 S12= 0.250

Ll = 0.165 Kis= 0.140

Ra = 0.0000 Afag= 540.0

LancasterGTvee000.csv

Time MW Action Excitation

20:00 Normal Commence reducing load so as to be ready for no load testing at 2200 Normal22:00 Minimum Transfer unit auxiliaries to startup transformer Normal

Disable transfer trips from 52a/52b contacts as neededDisable reverse power relay

22:15 0 Reduce generator output to zero Mw and zero MVAR Auto or Man

22:30 0 Reduce excitation to run generator into leading power factor - 50 MVAR as required0 Increase excitation to return to 0 MVAR0 Increase excitation to run generator into lagging power factor - 50 to 60 MVAR0 Decrease excitation to return to 0 MVAR

0:00:00 0 Open generator circuit breaker (52) Auto or Man0 Reduce excitation as far as possible as required0 Raise excitation in gentle steps to raise voltage to 110 percent0 Return voltage to normal synchronizing value

0:30 0 Synchronize0 Reduce excitation to obtain 30MVAR leading Manual0 Open generator circuit breaker (52)

1:00 0 Synchronize0 Reduce Excitation to obtain 60 MVAR leading Manual0 Open generator circuit breaker (52)

1:30 0 Synchronize0 Reduce excitation to obtain 30 MVAR leading Auto 0 Open generator circuit breaker (52)

2:00 0 Synchronize0 Reduce Excitation to obtain 60 MVAR leading Auto0 Open generator circuit breaker (52)

2:30 0 Synchronize40 Increase generator power to 40MW and 30 MVAR leading Manual40 Open generator circuit breaker (52)

3:00 0 Restore reverse power relay to normal0 Remove transfer trip bypasses0 Testing Complete

Theoretical Basis

Test Simulation

Beware Theory assumes constant field voltage

Most static excitation systems work in constant-field-current mode when switched into manual operation

0 10 20 30 40 50 60Time, sec

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Stat

or v

olta

ge, p

u

../tests/T-15-10-27-1743-001.xls

3.8 3.9 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7Time, sec

0.8

0.82

0.84

0.86

0.88

0.9

0.92

0.94

0.96

0.98

1

Stat

or v

olta

ge, p

u

../tests/T-15-10-27-1743-001.xls

3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 80.99

1

1.01

1.02

1.03

1.04

Stat

or v

olta

ge, p

u

3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8Time, sec

0

1

2

3

4

5

Fiel

d vo

ltage

, pu

../tests/T-15-10-27-1442-001.xls

0 2 4 6 8 10 12 14 16 18 201.02

1.03

1.04

1.05

1.06

1.07

Stat

or v

olta

ge, p

u

0 2 4 6 8 10 12 14 16 18 200

1

2

3

4

5

Fiel

d vo

ltage

, pu

0 2 4 6 8 10 12 14 16 18 20-5

0

5

10

15

Rea

ctiv

e po

wer

, MVA

R

0 2 4 6 8 10 12 14 16 18 20Time, sec

30

32

34

36

38

40R

eact

ive

pow

er, M

VAR

../tests/T-15-10-27-1709-001.xls

Divx 10 Divy 10 0.0 Time 500.0

Name Min Max Col CpPu F Fa Fb Fc Fd

Data file: t3ag1.csv

Scale file: t3ag1.scl

GilaBend GT3A

..

...

....

.....

0 TNR 95.0 105.0 2 1.0 1 0.0 0.0 0.0 0.0

1 TNH 99.9 100.9 9 1.0 2 0.2 0.0 0.0 0.0____

2 DWATT 115.0 165.0 3 1.0 1 0.0 0.0 0.0 0.0

3 FSRN 60.0 100.0 1 1.0 1 0.0 0.0 0.0 0.0

4 FSRT 60.0 100.0 5 1.0 1 0.0 0.0 0.0 0.0

6 CPR 0.0 15.0 9 1.0 1 0.0 0.0 0.0 0.0

7 CSGV 0.0 100.0 6 1.0 1 0.0 0.0 0.0 0.0

Divx 10 Divy 10 0.0 Time 500.0


Data file: gtgov.chf

Scale file: gtgov.scl

GENS Output

.

.

.

.

8 pmech 115.0 165.0 3 1.0 1 0.0 0.0 0.0 0.0

12 Sp-c 0.6 1.0 5 1.0 1 0.0 0.0 0.0 0.0

13 Sp-d 0.6 1.0 1 1.0 1 0.0 0.0 0.0 0.0

Divx 10 Divy 10 20.0 Time 120.0

Name Min Max Col CpPu



GilaBend GT3A

..

...

....

.....

0 TNR 95.0 105.0 2 1.0

1 TNH 99.5 104.5 9 1.0

2 DWATT 115.0 165.0 3 1.0

3 FSRN 60.0 100.0 1 1.0

4 FSRT 60.0 100.0 5 1.0

6 CPR 0.0 15.0 9 1.0

7 CSGV 0.0 100.0 6 1.0

Divx 10 Divy 10 25.0 Time 125.0




GENS Output

.

.

.

.

8 pmech 115.0 165.0 3 1.0 1 0.0 0.0 0.0 0.0

12 Sp-c 0.6 1.0 5 1.0 1 0.0 0.0 0.0 0.0

13 Sp-d 0.6 1.0 1 1.0 1 0.0 0.0 0.0 0.0

Divx 10 Divy 10 160.0 Time 260.0




GilaBend GT3A

..

...

....

.....

0 TNR 95.0 105.0 2 1.0 1 0.0 0.0 0.0 0.0

1 TNH 99.5 104.5 9 1.0 1 0.0 0.0 0.0 0.0

2 DWATT 115.0 165.0 3 1.0 1 0.0 0.0 0.0 0.0

3 FSRN 60.0 100.0 1 1.0 1 0.0 0.0 0.0 0.0

4 FSRT 60.0 100.0 5 1.0 1 0.0 0.0 0.0 0.0

6 CPR 0.0 15.0 9 1.0 1 0.0 0.0 0.0 0.0

7 CSGV 0.0 100.0 6 1.0 1 0.0 0.0 0.0 0.0

Divx 10 Divy 10 160.0 Time 260.0




GENS Output

.

.

.

.

8 pmech 115.0 165.0 3 1.0 1 0.0 0.0 0.0 0.0

12 Sp-c 0.6 1.0 5 1.0 1 0.0 0.0 0.0 0.0

13 Sp-d 0.6 1.0 1 1.0 1 0.0 0.0 0.0 0.0

turbine generator baseline testing30 0 synchronize 0 reduce excitation to obtain 30mvar leading...

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