Steady State and Dynamic Interaction Analysis in Multivarible Control System

Renanto Handogo (Department of Chemical Engineering Sepuluh Nopember Institute of Technology (ITS) Surabaya, Jakarta, INDONESIA Phone: [phone], Fax:[phone])
Gede Wibawa (Department of Chemical Engineering, Sepuluh Nopember ITS)
Totong Rusmana (Department of Chemical Engineeering Institute of Technology Adhi Tama Surabaya (ITATS))
Moch. Arief Hidayat (PT IKPT -Jakarta, INDONESIA)

ASEAN Journal of Chemical Engineering
Vol 4, No 1 (2004)

Relative gain array (RGA) and average dynamic gain array (ADGA) have been investigated as a measure for interaction of multi-input multi-output (MIMO) 2x2 system. Several examples have been chosen to represent MIMO with various time constants and dead time of first order plus dead time. The ratio of off-diagonal and on-diagonal element time constants of the transfer function processes (6) has shown more dominance to interaction than ratio of off-diagonal and on-diagonal element dead times of the transfer function processes (0,) . RGA, INA,and ADGAgive the same result for t'j 3 1 and INA and ADGA should be used for t'j 1 regardless the value of do