Title:
EFFICIENCY OPTIMIZATION CONTROLLING METHOD OF THERMAL POWER PLANT
Document Type and Number:
Japanese Patent JPS5840611
Kind Code:
A
Abstract:
PURPOSE:To optimize the efficiency of a plant speedily with high precision without any restriction of the response speed of the plant, by using a plant model for efficiency calculation which is incorporated in a control system, and then carrying out model standard type efficiency estimating calculation. CONSTITUTION:When a maximum efficiency searching means 230 has an O2 excess rate m1 and the opening extent m2 of a parallel damper as operation parameters, a trial manipulated variable which corresponds to a trial point 1 is supplied to a plant 240 for efficiency calculation to find efficiency eta. At trial points 2, 3-, the efficiency eta is found similarly. Then, (k) trial points after trial are divided into a group A of (p) points with lower efficiency and a group B of the remaining (q) points, and a new trial point is set on the straight line which connects the centers of gravity of two multidimensional polygons formed of the remaining points of each group except the point counted from the lowest efficiency point by (l)(l=1-p). Thus, the highest efficiency point 7 is obtained to obtain the best manipulated variables m1<7> and m2<7>.
Inventors:
MATSUMOTO HIROSHI
SATOU YOSHIO
SATOU YOSHIO
Application Number:
JP13849681A
Publication Date:
March 09, 1983
Filing Date:
September 04, 1981
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G05B13/00; F22B35/18; G05B13/02; (IPC1-7): F01K13/00; G05B13/02
Attorney, Agent or Firm:
Akio Takahashi