|
Abstract: An
approach of rough-fuzzy control, which uses rough set data analysis to
upgrade fuzzy PID control, is presented for the electro-hydraulic servo
position system in pipe bundle shaping process. The input to the model
is mapped into the output subspace by using rules acquired from RSDA,
then the output of the system is approximated in the subspace. On the
basis of RSDA, modeling and analysis of actual pipe bundle shaping
control process is provided. Compared with conventional fuzzy PID
control, this method takes on better dynamic running performance with
simple control arithmetic.
Key words: Electro-hydraulic bundle shaping
Rough set data analysis
Self-learning rough-fuzzy PID control
CLC No: TK271
Received 20051101, received in revised form 20060516
|