Extension of stable operating regions of synchronous machines using low-sensitivity excitation control
- 1 January 1974
- journal article
- Published by Institution of Engineering and Technology (IET) in Proceedings of the Institution of Electrical Engineers
- Vol. 121 (10) , 1141-1145
- https://doi.org/10.1049/piee.1974.0262
Abstract
In the usual design of optimal linear regulators for synchronous machines, the controller is designed for a particular set of system operating conditions. However, in actual system operation, these conditions are subject to load demands. Consequently, the optimal controller designed for a certain operating condition will no longer yield a satisfactory performance at others. The paper endeavours to overcome this problem by proposing a method for designing optimal controllers with low sensitivity to systemloading conditions, while avoiding the complexity of the resulting controller structure. A numerical example involving a synchronous machine swinging against an infinite busbar is used to demonstrat the usefulness of low-sensitivity controllers in extending the stable operating region.Keywords
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