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- Title
INTERVAL-VALUED FUZZY LOGIC CONTROL FOR A CLASS OF DISTRIBUTED PARAMETER SYSTEMS.
- Authors
ZHANG, XIAN-XIA; LI, SHAO-YUAN; LI, HAN-XIONG
- Abstract
An interval-valued fuzzy logic controller (I-V FLC) is presented to control a class of nonlinear distributed parameter systems. The proposed FLC is inspired by human operators' knowledge or expert experience to control a distributed parameter process from the point of view of overall space domain. Based on spatial fuzzy set, the I-V FLC employs a centralized rule base over the space domain. Using spatial membership degree fusion operation, the I-V FLC can compress spatial input information into interval-valued fuzzy sets and then execute an interval-valued rule inference mechanism; thereby the I-V FLC has the capability to process spatial information over the space domain. Compared with traditional FLCs, the I-V FLC can improve its control performance due to its increased ability to express and process spatial information. The I-V FLC is successfully applied to a catalytic packed-bed reactor and compared with the traditional FLCs. The results demonstrate its effectiveness to control the unknown nonlinear distributed parameter process.
- Subjects
FUZZY logic; FUZZY sets; DISTRIBUTED parameter systems; SET theory; COMMAND &; control systems; FUZZY systems
- Publication
International Journal of Uncertainty, Fuzziness & Knowledge-Based Systems, 2007, Vol 15, Issue 4, p457
- ISSN
0218-4885
- Publication type
Article
- DOI
10.1142/S0218488507004790