western electricity coordinating council frequency responsive reserve workshop kenneth j. wilson...
TRANSCRIPT
Western Electricity Coordinating Council
Frequency Responsive Reserve Workshop
Kenneth J. WilsonStaff Engineer
Frequency Responsive Reserve Standard Drafting Team
February 12, 2009
Western Electricity Coordinating Council
Limiting Condition
2
System Frequency
59.3
59.4
59.5
59.6
59.7
59.8
59.9
60
60.1
0 10 20 30 40 50 60 70
Time (sec)
Fre
qu
ency
(M
W)
Western Electricity Coordinating Council
Load Response
3
Total System Response = Generator Outage for which there is no UFLS action
2,000
2,200
2,400
2,600
2,800
3,000
3,200
3,400
3,600
3,800
4,000
80,000 90,000 100,000 110,000 120,000 130,000 140,000 150,000 160,000
System Size (MW)
To
tal
Re
sp
on
se
= G
en
era
tio
n O
uta
ge
(M
W)
Option B1: 3,200 MWGeneration Response
Option B2: 2,600 MWGeneration Response
Option B3: 2,500 MWGeneration Response
Option B4: 2,400 MWGeneration Response
Option B5: 2,000 MWGeneration Response
2 Palo Verde
Western Electricity Coordinating Council
Typical Frequency Excursion
4
Frequency Response
A = 60.000
C = 59.812
B = 59.874
59.750
59.775
59.800
59.825
59.850
59.875
59.900
59.925
59.950
59.975
60.000
60.025
60.050
-30 -20 -10 0 10 20 30 40 50 60
Time (Seconds)
Frequency (Hz)
Western Electricity Coordinating Council5
Sensitivities to FRR Amount● Case A (baseline) – June 14 2004 event validation case● Case B –
current UFLS settings are maintained base-loaded generating capacity is increased until frequency for 2 PV outage
drops to 59.5 Hz
● Case C – current UFLS settings are maintained base-loaded generating capacity is increased until frequency for 2 DCNG outage
drops to 59.65 Hz Comment: Diablo Canyon NG outage is the next worst G-2 after 2 PV
● Case D – UFLS is blocked base-loaded generating capacity is increased until frequency for 2 PV outage
drops to approximately 59.5 Hz
Western Electricity Coordinating Council6
System Frequency, 2 Palo Verde Outage
59.5
59.6
59.7
59.8
59.9
60
60.1
0 10 20 30 40 50 60 70 80
Time (sec)
Fre
qu
ency
(H
z)
Case A - 2 PV
Case B - 2PV
Case C - 2PV
Case D - 2PV
Western Electricity Coordinating Council7
June 14 2004 Case (as was), System Frequency
59.5
59.6
59.7
59.8
59.9
60
60.1
0 10 20 30 40 50 60 70 80
Time (sec)
Fre
qu
en
cy
(H
z)
1PV - Frequency
2PV - Frequency
2DCNG -Frequency
2SONG -Frequency
Colstrip - Frequency
Bridger - Frequency
3 PV - Frequency
4,200
2,800
1,400
2,200
Western Electricity Coordinating Council8
Frequency Responsive Reserve
Questions
Kenneth J. WilsonStaff Engineer Western Electricity Coordinating Council615 Arapeen Drive, Suite 210Salt Lake City, Utah 84108-1262801.582.0353