DESIGN OF TURBOALTERNATOR EXCITATION CONTROLLERS USING MULTIVARIABLE FREQUENCY-RESPONSE METHODS

It is shown how compensators for turboalternator excitation-control schemes may readily be designed to appropriate stability margins using multivariable frequency-response methods. The proposed design approach is claimed to offer a great improvement over previous methods, and the ease of its application is demonstrated by the design of a speed compensator for a static excitation system. The effect of changes in operating conditions on compensation performance is outlined. This example demonstrates the way in which the natural system dynamics can be utilized to improve controlled performance.