G - Physics – 05 – B
Patent
G - Physics
05
B
341/110
G05B 11/42 (2006.01) G05B 5/01 (2006.01) G05B 11/38 (2006.01) G05B 11/40 (2006.01) G05B 13/02 (2006.01)
Patent
CA 1174751
ABSTRACT OF THE DISCLOSURE The method serves to control sluggishly reacting systems in which rapid changes in set value occur. The controller (4) used has an integrating (I)-section (11) and a proportional (P)-section (20) separate from the I-section (11). The I-section (11) receives a control variation formed from the actual value and the set value, whereas the P-section (20) is supplied with the set value. The output signals of the I-section (11) and of the P-section (20) act on the plant (1). The I-section (11) is blocked or interrupted for the duration of an abrupt change in the set value. As a result of this relatively short interruption in operation of the I-section, the control provided by the plant is improved as compared with a method in which the change in set value acts on the I-section but with a delay determined by a delay element.
373333
Gowling Lafleur Henderson Llp
Sulzer Brothers Limited
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