Possible Way of Control of Multi-variable Control Loop by Using RGA Method

The paper describes one of possible approaches to control of multi-variable control loops. In the approach to control is used the so called RGA (Relative Gain Array) method, simple approach to ensure of invariance of control loop and simple approach to a design of the so called primary controllers. The RGA serve to determine the optimal input-output variable pairings especially for a multi-variable controlled plant. The so called correction members are then generally considered for ensuring invariance of a control loop. Further, it is considered that primary controllers are determined by arbitrary single-variable synthesis method for optimal input-output variable pairings. Simulation verifications of the mentioned way of control are carried out for twovariable control loop. Key-Words: MIMO control loop, RGA, simulation, synthesis