Abstract
An approach to the design of feedforward regulators by parameter estimation techniques is presented. Given a linear minimum phase system and a prespecified feedback, optimal feedforward filter design is straightforward. A method to solve for it with any input signal is given, allowing the compensator parameters for a prescribed order to be adjusted in a minimum output energy sense. For stocnastic inputs the solution with the complete order converges to the LOG-optimal design feedforward regulator. The feedforward link is optimized with respect to the measurable disturbances. The method requires knowledge of the system and tne disturbance model and can accomodate non minimum phase plants and larger delays in the plant than in the disturbance model. An example applied to a hydraulic power generating turbine speed control is presented.
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