Method and apparatus for multiple-input, multiple output feedback control of variable load systems
AssigneeWilliam L. Wise
InventorWilliam L. Wise
Life of this patent
Estimating the term…
Abstract
In a feedback control system with multivariable inputs and outputs, a network of plant actuators, each controlled by self-adaptive feedback control loops with pole-tracking zeroes, is provided as a plant or output load for a network of generally-conventional controllers. Each of the controllers sees a constant load, so the controller network can be viewed as having a constant gain-bandwidth characteristic transmission. The network of plant actuators cancels the effects the load inertias and its variations.
Claims5
In a feedback control system, a method for controlling multiple outputs signals in response to multiple input signals, the method comprising the steps of:
- summing outputs of selected constant-load controllers to develop inputs for selected actuator plants, each one of said actuator plants being controlled by self-adaptive feedback control loops with pole-tracking zeroes, said actuator plants serving as output load for said controllers;
- summing outputs of selected ones of said actuator plants to produce a plurality of actuator signals;
- driving loads with said actuator signals;
- providing feedback of said actuator signals to said actuator plants to allow pole tracking of zeroes;
- and
- providing feedback of said actuator signals to said controllers for conventional steady-state feedback, such that each of said controllers sees a constant load and has a constant gain-bandwidth characteristic.
A feedback control system comprising:
- a network of constant-load controllers;
- and
- a network of actuator plants, each one of said actuator plants being coupled to receive as input a summation of outputs of selected ones of said constant load controllers, each one of said actuator plants being controlled by self-adaptive feedback control loops with pole-tracking zeroes, said network of actuator plants serving as output load for said network of controllers such that each of said controllers sees a constant load and has a constant gain-bandwidth characteristic.
Dependencies are inferred from the claim text.