TC on uncertain coupling

The control of MIMO systems plays an important part in industrial process, and the uncertain coupling in MIMO systems is a key issue of control. This paper introduces an input relative gain array(IRGA) to the design of Tornambe´s Controller(TC) to find a proper match between the inputs and outputs. Then use this method to deal with a ten-in ten-out nonlinear system with uncertain coupling. The result of simulation shows that this method can find an appropriate match between the variables and plays good performance, also gives a new solution to MIMO nonlinear systems with uncertain coupling.