pdcwg update
DESCRIPTION
PDCWG Update. PDCWG has not met since the last ROS meeting. Reviewed ERCOT Frequency Performance and summarized for ERCOT Bias setting. Reviewing TNT White Paper on Frequency Response Service. Next meeting scheduled for Jan 20 & 21, 2005 room 168 Met Center. ERCOT CPS1 July 143.64. - PowerPoint PPT PresentationTRANSCRIPT
PDCWG Update
• PDCWG has not met since the last ROS meeting.
• Reviewed ERCOT Frequency Performance and summarized for ERCOT Bias setting.
• Reviewing TNT White Paper on Frequency Response Service.
• Next meeting scheduled for Jan 20 & 21, 2005 room 168 Met Center.
ERCOT CPS1 15 Minute Average - Monthly Score
0
20
40
60
80
100
120
140
160
180
200
0:15
1:15
2:15
3:15
4:15
5:15
6:15
7:15
8:15
9:15
10:1
5
11:1
512
:15
13:1
5
14:1
5
15:1
5
16:1
5
17:1
5
18:1
5
19:1
5
20:1
5
21:1
5
22:1
5
23:1
5
Interval Ending
July-04
ERCOT CPS1 July 143.64
127.52 12mo rolling avg
ERCOT CPS1 15 Minute Average - Monthly Score
0
20
40
60
80
100
120
140
160
180
200
0:15
1:15
2:15
3:15
4:15
5:15
6:15
7:15
8:15
9:15
10:1
5
11:1
512
:15
13:1
5
14:1
5
15:1
5
16:1
5
17:1
5
18:1
5
19:1
5
20:1
5
21:1
5
22:1
5
23:1
5
Interval Ending
August-04
ERCOT CPS1 August 139.19
128,90 12mo rolling avg
ERCOT CPS1 15 Minute Average - Monthly Score
-100
-50
0
50
100
150
200
Interval Ending
September-04
ERCOT CPS1 September 124.16
129.56 12mo rolling avg
ERCOT CPS1 15 Minute Average - Monthly Score
-50
0
50
100
150
200
Interval Ending
October-04
ERCOT CPS1 October 126.17
ERCOT CPS1 15 Minute Average - Monthly Score
0
20
40
60
80
100
120
140
160
180
0:15
1:15
2:15
3:15
4:15
5:15
6:15
7:15
8:15
9:15
10:1
5
11:1
512
:15
13:1
5
14:1
5
15:1
5
16:1
5
17:1
5
18:1
5
19:1
5
20:1
5
21:1
5
22:1
5
23:1
5
Interval Ending
November-04
ERCOT CPS1 November 116.59
ERCOT CPS1 By Day - November 2004
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Day
0
3500
7000
10500
14000
17500
21000
24500
28000
31500
35000
38500
42000
45500
49000
52500
56000
59500
63000
66500
70000
SCPS1 Avg SCPS1 ERCOT Pk Load
11 of the 21 Frequency Control issues reported in the Operations Report occurred during the first seven days of Nov.
23 of the 57 Responsive Deployments occurred during the first seven days of Nov.
ERCOT CPS1 November by day
QSE SCPS1 Performance 5:45 to 6:15
-1600
-1400
-1200
-1000
-800
-600
-400
-200
0
200
400
600
800
CI
DR
AO
AB
CC
CF
BG
DP
AM AY
CD
CV
BC BX
DK
CW BY CJ
EW CQ DF
AR
BE
EC
BP
AP
DA CX
AD
DE CT
BU
1% Minimum Particpation Factor
November 2004 October 2004 September 2004 August 2004
Sorted by November Scores
QSE SCPS1 4 months 06:00
QSE SCPS1 Performance 21:45 to 22:15
-800
-600
-400
-200
0
200
400
600
800
1000
1200A
M AB
BG
BC
CD
DA
CC
AY
AR
CW BY
DK
CQ
CV
BE BX
CF CJ
EC
DP
DF
AO
BP
DR
EW AP CI
AD CT
CX
DE
BU
1% Minimum Participation Factor
November 2004 October 2004 September 2004 August 2004
Sorted by November Scores
QSE SCPS1 4 months 22:00
ERCOT Frequency Response
Average Frequency Bias for Frequency Control and ACE
1995 Average1996 Average1997 Average1998 Average1999 Average2000 Average2001 Average2002 Average2003 Average2004 Average
C Point B PointFrequency Freq Resp Freq Resp Freq Resp
Response (A to C) (A to C) (A to C)
(A to C) No High Set 1st step HS 2nd step HS
MW/.1Hz c > 59.8 59.8>c > 59.7 C < 59.7
373.7 345.1 388.9 389.3370.6 353.2 365.5 401.4359.5 353.3 328.9 404.9383.4 393.7 359.5 377.1382.3 333.2 410.0 383.3391.2 396.5 371.5436.7 421.9 455.3 554.3395.6 390.4 436.2 394.9434.3 435.3 460.5 472.3381.5 374.1 394.4 405.6
B Point B+30 PointFrequency Freq Resp Freq Resp Freq Resp
Response (A to B) (A to B) (A to B)
(A to B) No High Set 1st step HS 2nd step HS
MW/.1Hz c > 59.8 59.8>c > 59.7 C < 59.7
707.6 543.0 702.9 1049.9705.8 548.7 670.1 948.4723.3 540.8 689.4 1019.4663.3 632.3 622.9 1108.9648.9 557.3 741.4 824.2575.2 570.7 588.2643.4 637.8 645.5 728.0597.5 565.9 660.5 969.0618.7 582.6 853.2 861.1528.9 470.8 636.8 796.6
ERCOT Load
MW
24039.326115.526251.132568.128736.132164.930775.033886.334545.136549.2
1995 Average1996 Average1997 Average1998 Average1999 Average2000 Average2001 Average2002 Average2003 Average2004 Average
System System
Near Droop Near Droop
(Using load (Using load
not capacity) not capacity)
at B pt (%) at C pt (%)
6.48% 11.20%6.40% 11.85%6.67% 12.21%
8.4% 14.2%8.0% 13.1%9.5% 13.6%8.4% 12.3%9.8% 14.0%9.7% 13.5%
12.1% 16.1%
Average Response by Year
Spike "Point C" Frequency Response Trend All Points
y = 0.0175x - 246.84
R2 = 0.0408
y = 0.013x - 84.356
R2 = 0.028
150.0
200.0
250.0
300.0
350.0
400.0
450.0
500.0
550.0
600.0
650.0
700.0
750.0
800.0
850.0
900.0
06/15/94 10/28/95 03/11/97 07/24/98 12/06/99 04/19/01 09/01/02 01/14/04 05/28/05 10/10/06
MW
Res
pons
e
2004
2003
Point C Response all Events
Spike "Point C" Frequency Response Trend No High Set Points
y = 0.0228x - 449.91R2 = 0.0496
y = 0.0179x - 270.45
R2 = 0.0328
150.0
200.0
250.0
300.0
350.0
400.0
450.0
500.0
550.0
600.0
650.0
700.0
750.0
800.0
850.0
900.0
06/15/94 10/28/95 03/11/97 07/24/98 12/06/99 04/19/01 09/01/02 01/14/04 05/28/05 10/10/06
MW
Res
pons
e
2004
2003
Point C Response (No LaaRs Tripping)
Recovery "Point B" Frequency Response Trend All Points
y = -0.0462x + 2328R2 = 0.0443
y = -0.0474x + 2371.9
R2 = 0.0711
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
1000.0
1100.0
1200.0
1300.0
1400.0
1500.0
1600.0
1700.0
06/15/94 10/28/95 03/11/97 07/24/98 12/06/99 04/19/01 09/01/02 01/14/04 05/28/05 10/10/06
MW
Res
po
nse
2004
2003
Point B Response all Events
Recovery "Point B" Frequency Response Trend No High Set Points
y = 0.0123x + 126.82R2 = 0.0059
y = -0.0144x + 1097.2
R2 = 0.0099
200
300
400
500
600
700
800
900
1000
06/15/94 10/28/95 03/11/97 07/24/98 12/06/99 04/19/01 09/01/02 01/14/04 05/28/05 10/10/06
MW
Res
po
nse
2004
2003
Point B Response (No LaaRs Tripping)
Recovery "Point B+30" Frequency Response Trend All Points
y = -0.2835x + 11341
R2 = 0.0649
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
1000.0
1100.0
1200.0
1300.0
1400.0
1500.0
1600.0
1700.0
08/17/03 10/06/03 11/25/03 01/14/04 03/04/04 04/23/04 06/12/04 08/01/04 09/20/04 11/09/04 12/29/04
MW
Res
po
nse
Point B+30 Response all Events
Recovery "Point B+30" Frequency Response Trend No High Set Points
y = -0.3032x + 12038
R2 = 0.1105
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
1000.0
1100.0
1200.0
1300.0
1400.0
1500.0
1600.0
1700.0
08/17/03 10/06/03 11/25/03 01/14/04 03/04/04 04/23/04 06/12/04 08/01/04 09/20/04 11/09/04 12/29/04
MW
Res
po
nse
Point B+30 Response (No LaaRs Tripping)
Recovery "Point B" Frequency Response Trend No High Set or HS Response Removed
y = -0.0075x + 800.98
R2 = 0.0055
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
1000.0
06/15/94 10/28/95 03/11/97 07/24/98 12/06/99 04/19/01 09/01/02 01/14/04 05/28/05 10/10/06
Oct thru Apr data only
MW
Res
po
nse
Point B Oct-Apr Response
Recovery "Point B+30" Frequency Response Trend No High Set or HS Response Removed
y = -0.3143x + 12449
R2 = 0.223
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
1000.0
08/17/03 10/06/03 11/25/03 01/14/04 03/04/04 04/23/04 06/12/04 08/01/04 09/20/04 11/09/04 12/29/04
Oct thru Apr data only
MW
Res
po
nse
Point B+30 Oct-Apr Response
Recovery "Point B" Frequency Response Trend No High Set or HS Response Removed
y = -0.0755x + 3435.6
R2 = 0.1461
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
1000.0
06/15/94 10/28/95 03/11/97 07/24/98 12/06/99 04/19/01 09/01/02 01/14/04 05/28/05
May thru Sep data only
MW
Res
po
nse
Point B May-Sep Response
Recovery "Point B+30" Frequency Response Trend No High Set or HS Response Removed
y = 0.9648x - 36351
R2 = 0.1034
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
1000.0
04/23/04 06/12/04 08/01/04 09/20/04 11/09/04 12/29/04
May thru Sep data only
MW
Res
po
nse
Point B+30 May-Sep Response
ERCOT Bias Settings
Summer Load Shoulder and WinterMay through September October through April
2004 604 533Opt A 552 497 Using Point B dataOpt B 489 481 Using Point B+30 dataOpt C 520.5 489 Average of B & B+30other
ERCOT Bias Setting
1 17:37:06 Jan-04-2004 Sunday 28914 5022 9:01:32 Jan-05-2004 Monday 35408 5603 21:05:28 Jan-18-2004 Sunday 33372 7584 16:16:48 Jan-23-2004 Friday 28750 13305 22:32:08 Jan-31-2004 Saturday 34872 7316 15:07:28 Mar-03-2004 Wednesday 35268 7707 9:27:20 Mar-26-2004 Friday 35597 5948 19:10:30 Apr-24-2004 Saturday 35129 5459 20:38:30 May-18-2004 Tuesday 47570 64010 17:30:30 May-19-2004 Wednesday 51394 65511 10:43:26 Jun-06-2004 Sunday 44510 59512 10:02:56 Jun-07-2004 Monday 46330 71313 13:36:00 Jun-11-2004 Friday 52927 53614 15:43:56 Jun-14-2004 Monday 58346 64015 2:56:28 Jun-20-2004 Sunday 38159 64516 13:04:08 Jun-20-2004 Sunday 52813 54217 18:07:30 Jun-24-2004 Thursday 52158 98918 11:06:18 Jul-24-2004 Saturday 43238 594.5719 11:05:38 Jul-30-2004 Friday 42297 615.820 11:29:44 Jul-30-2004 Friday 43156 664.4921 13:05:12 Aug-07-2004 Saturday 41990 798.1822 8:47:52 Aug-11-2004 Wednesday 38409 451.0823 9:59:20 Aug-18-2004 Wednesday 39502 1103.5924 11:08:00 Aug-19-2004 Thursday 42531 125325 14:33:08 Aug-25-2004 Wednesday 55170 641.6726 5:54:38 Aug-28-2004 Saturday 31769 -42727 16:43:48 Sep-21-2004 Tuesday 49094 525.2828 2:31:46 Oct-03-2004 Sunday 24958 767.0929 20:28:40 Oct-10-2004 Sunday 36521 649.9930 18:36:08 Nov-03-2004 Wednesday 38738 358.6431 3:00:02 Nov-04-2004 Thursday 27519 531.0532 21:17:44 Nov-05-2004 Friday 34860 699.7233 13:51:22 Nov-10-2004 Wednesday 36188 751.8234 21:36:28 Nov-20-2004 Saturday 33490 569.4335 21:53:18 Nov-21-2004 Sunday 33130 482.7136 8:27:30 Dec-07-2004 Tuesday 35460 791.26
Event #Total
Generation Online
MW lostTime of Event Date Day of WeekActual ERCOT Governor Response
(MW/0.10Hz)Frequency Deviation
at Point B at Point B + 30697.35 N/A494.73 467.79434.87 346.29798.44 356.59515.35 429.73383.71 287.96522.81 388.25487.23 429.06579.56 362.281162.46 866.72523.43 373.38538.99 448.92420.76 349.72495.98 481.77731.31 490.67592.68 458.80628.99 429.79502.54 414.41511.70 719.01472.09 457.80518.60 508.16435.00 375.56431.84 406.66405.67 382.62474.96 580.51326.06 334.65547.19 514.77443.04 423.96405.21 364.97180.82 168.50486.17 472.47497.78 467.70455.75 356.03374.57 360.16424.26 395.67343.93 304.93
Six Event Rolling Average
at Point B at Point B + 30
554.07 377.67524.98 379.44523.73 372.98547.85 375.65608.52 460.67609.87 451.27635.75 478.10618.74 471.68620.20 480.46645.49 501.86550.53 433.88568.12 443.28562.04 437.53577.20 499.07573.22 495.08537.77 497.99511.49 484.12478.63 480.27462.48 474.97456.36 451.89432.02 431.36436.79 432.46438.13 440.53433.69 433.58396.21 397.89398.08 379.89426.70 402.06411.46 375.61400.05 364.97403.23 370.09430.41 392.83
ERCOT Frequency Response Std