Abstract
The authors formulate voltage stability as a dynamic problem and show that the excitation systems plays a key role in determining voltage stability through the relevant eigenvalues of the linearized system's A matrix. Whereas in most studies using a linearized dynamic approach the electromechanical modes are of concern for stabilizing the system, it is shown in this study that the electrical variables associated with the excitation system play a dominant role. In the limiting case when there is no representation of the excitation system, the determinant of the load-flow Jacobian becomes the key determining factor. Under these conditions, Venikov's criterion is valid. The authors consider both the limited-Q and the unlimited-Q case, i.e., the Q limits on the reactive power generation.
Original language | English (US) |
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Pages | 1231-1236 |
Number of pages | 6 |
DOIs | |
State | Published - 1989 |
Event | Proceedings of the 1989 American Control Conference - Pittsburgh, PA, USA Duration: Jun 21 1989 → Jun 23 1989 |
Other
Other | Proceedings of the 1989 American Control Conference |
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City | Pittsburgh, PA, USA |
Period | 6/21/89 → 6/23/89 |
ASJC Scopus subject areas
- Engineering(all)