Published Resources Details
Journal Article
- Title
- The generalised steady state stability limits of alternators
- In
- Journal of the Institution of Engineers, Australia
- Imprint
- vol. 30, no. 7-8, Jul-Aug 1958, pp. 205-219
- Description
This paper, No.1330, was presented before the Engineering Conference, 1958, held m Newcastle from 3rd to 8th March, 1958. The author, F. J. Evans, BSc BE AMIEAust, is Lecturer in Electrical Engineering, University of Sydney.
[This paper was awarded the Electrical Engineering Prize 1958.]
- Abstract
Theoretical steady state stability limits are derived in generalised graphical form for round rotor and salient pole alternators which have manual control of excitation or non-continuously acting voltage regulators, and which are assumed tied to an equivalent infinite system via an external reactance. Further generalised stability limits are obtained for round rotor alternators where the external system impedance has an appreciable resistive component and where there is local load at the machine or unit transformer terminals. The extension of this to apply approximately to salient pole alternators is indicated.
Practical stability limits which are displaced from the theoretical limits to allow some margin for specified disturbances in operating conditions are considered, and the requisite margins are derived theoretically.
Use of these generalised results will enable the appropriate stability limit contours to be plotted in terms of real and reactive power outputs for most alternators and systems, with a minimum of calculation.