PSERC
Seminar, June 7, 2005 (©2005 Paolo Piagi)
PP - 24
PSERC
A – L3 on
B – L3 off
P1 [pu]
0.4 = 50%
0.13 = 16%
P2 [pu]
0.8 = 100%
0.77 = 96%
Frequency
[Hz]
59.80
59.968
Load Level
[pu]
1.2 = 150%
0.9 = 112%
Grid Flow
[pu]
0.0
0.0
Zone
Power Control: Classic Parallel
Solution: F1 = - F2
P1
F1
P2
F2
L1
L3
L4
4 wire
75yd
4 wire
25yd
L2
Utility
System
Event:
Load
Removal
Event shows Unit 2 backing off from
maximum output power after a load is removed.
Parallel Configuration, Control of F1 and F2