Plant control system

摘要

A plant control system for controlling a plant (E) includes an actuator (1) for generating an input (LAF) to the plant (E) and a first detector (6) for detecting an output from the plant (E). A manipulated variable determining unit (13) determines a manipulated variable (KCMD) which determines the input to the plant (E) according to a sliding mode control process such that an output from the first detector (6) will be equalized to a predetermined target value (VO2/TARGET). The manipulated variable determining unit (13) determines the manipulated variable to converge a plurality of present and previous time-series data of the output of the first detector (6) and the target value, onto a balanced point on a hyperplane for the sliding mode control process, which is defined by a linear function having variables represented respectively by the state quantities. <IMAGE>