METHOD FOR CONTROLLING, CONTROLLER, PROGRAM AND STORAGE MEDIUM OF PAPER MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a controller of a paper machine avoiding causing problems such as hunting by mutual interference between both controls by simple and inexpensive constitution even when the retention control and ash content control in paper at a short control period in the paper machine and accurately controlling the retention and ash content. SOLUTION: The retention and ash content in the paper in at least a wet part 2a are controlled with an automatic control system 3 in the paper machine 1. The automatic control system 3 is equipped with a feedback loop performing automatic control of the retention, a feedback loop performing automatic control of the ash content in the paper and a noninterfering control part 30 assembled between both the feedback loops so as to counteract effects by the mutual interference of both the feedback loops. COPYRIGHT: (C)2004,JPO&NCIPI