CONTROL SYSTEM USING PLURAL CONTROL PRINCIPLES

摘要

PROBLEM TO BE SOLVED: To improve the precision of control to a controlled system while securing the stability and reliability of a control system. ;SOLUTION: A steam generator 10 is the controlled system. This control system is provided with a control module group 20 and a selector 30. The control module group 20 has plural controllers to be respectively operated under different control principles. These controllers are mutually regardlessly parallelly operated. An action predictor 304 of the selector 30 predicts the action of the controlled system in future based on control parameters outputted by the respective controllers. Based on the predicted result, a comparative signal selector 306 selects the optimum controller.;COPYRIGHT: (C)1998,JPO