초록 ▼

Process control is disclosed, applicable in particular to fluid flow distribution, by which decoupling of the individual process variable changes, by set point setting changes, is effected through anticipation of the interaction through the process, using Gauss-Jordan elimination to find the solutio

Process control is disclosed, applicable in particular to fluid flow distribution, by which decoupling of the individual process variable changes, by set point setting changes, is effected through anticipation of the interaction through the process, using Gauss-Jordan elimination to find the solutions to simultaneous equations, whereby all set point settings are simultaneously adjusted by adding such anticipations.

대표청구항 ▼

In a system for the distribution of fluid through a plurality of input fluid lines to satisfy a demand of fluid through a plurality of output lines, with at least one common header collecting fluid from at least two parallel such output lines, the combination of: control means for selectively changi

In a system for the distribution of fluid through a plurality of input fluid lines to satisfy a demand of fluid through a plurality of output lines, with at least one common header collecting fluid from at least two parallel such output lines, the combination of: control means for selectively changing the flow between said input lines and for concurrently and selectively changing the flow between said output lines in accordance with a predetermined optimization criterion; decoupling means responsive to an intended change to be done by said control means according to said optimization criterion as effected upon one of said parallel output lines for anticipating changes through the system as effected by said control means upon the others of said parallel output lines; and said control means combining each of such intended changes and of correlative said anticipating changes for simultaneously changing the flow between said input and output lines in accordance with said intended and anticipating changes, thereby to compensate for a discrepancy in said optimization criterion due to said correlative anticipating changes.