FEED-FORWARD CONTROLLER FOR THERMAL POWER PLANT MAIN CONTROL SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a feed-forward controller for a thermal power plant main control system, which is favorable to improve the control precision and stability of process quantity by comparatively easily obtaining a feed-forward signal(manipulated variable) from the forward model of NN(neural network). ;SOLUTION: In a thermal power plant provided with a turbine control system 10, a water feeding control system 11 and a fuel control system 12, a means 1 for obtaining statistic manipulated variable which meets power generation requesting quantity, feed-back control means 2 and 3 for providing a control characteristic at the time of output change and feed-forword control means 5 and 6 for improving the control characteristic are provided, NN which simulates the plane based on load raising and lowering data of the plant is constituted, a Jacobean(the sensitivity of an output as against an input) is calculated by NN and the feed-forward signal for permitting an evaluation function to be min., consisting of manipulated variable, through the use of the Jacobean.;COPYRIGHT: (C)1998,JPO