Download presentation
Presentation is loading. Please wait.
1
ECE 576 POWER SYSTEM DYNAMICS AND STABILITY
Lecture 15b Single-Machine Infinite-Bus System Professor Pete Sauer Department of Electrical and Computer Engineering © 2000 University of Illinois Board of Trustees, All Rights Reserved
2
Classical model Or, go back to the two-axis model and assume:
4
This is a pendulum model
Neglect resistance and assume TCH = ∞ This is a pendulum model
5
This is a pendulum model
Or This is a pendulum model
6
Response with K1=5, K2=10, K3=1.7 (appropriate units)
Euler forward method with time step of sec Initial angle -1 radian Initial speed 7.0 rad/sec
8
Phase portrait – Omega vs Delta
9
Response with K3=1.3 (appropriate units) – Delta converges to 30 degrees plus 720 degrees
10
Interesting result – increase the time step to be 0
Interesting result – increase the time step to be sec – results in loss of damping!
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.