PSERC Seminar, June 7, 2005 (©2005 Paolo Piagi)
PP - 22
PSERC
Unit Power Control: Reaching Maximum Power
Utility
System
P1
F1
P2
F2
L1
L3
L4
L5
4 wire
75yd
4 wire
25yd
Event:
Transfer to Island
Event shows Unit 2 reaching maximum output power after islanding.
A – Grid
B – Island
P1 [pu]
0.08 = 10%
0.4 = 50%
P2 [pu]
0.72 = 90%
0.8 = 100%
Frequency
[Hz]
60.00
59.8
Load Level
[pu]
1.2 = 150%
1.2 = 150%
Grid Flow
[pu]
0.4 = 50%
0.0
Series Configuration, Control of P1  and P2