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Adaptive pressure control for melt spinning processes
Author(s) -
Jang YuJen,
Wu WenTend,
Bai ChiChung,
Liu ShangRen,
Chuang YunYih
Publication year - 1991
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760311506
Subject(s) - pid controller , spinning , plastics extrusion , control theory (sociology) , materials science , controller (irrigation) , system identification , adaptive control , control engineering , computer science , temperature control , control (management) , composite material , engineering , measure (data warehouse) , artificial intelligence , agronomy , database , biology
Indirect adaptive control of the pressure of an extruder for melt spinning processes was investigated. The controller was a proportional‐integral‐derivative. (PID) one. An identified model for the pressure system was determined by using weighted least‐squares estimation with an adjustable Identification interval. On‐line tuning of the PID controller based on the identified model was then carried out. Difficulties in determining the proper model and controller tuning were avoided. The experiment, carried out with a pilot‐type melt spinning machine, resulted in higher quality fiber production.