STRUCTURAL APPROACH TO THE SYNTHESIS OF CONTROL-SYSTEMS

Structural approaches to the synthesis of control systems are importan t integral parts of process design especially during the early stage, so that one can be aware of the controllability of the process under d esign; assess the interactions between the potential control loops and derive the possibly feasible regulatory control configurations. To ov ercome the deficiency of previous structural methods, a modified struc tural approach for synthesizing control systems is introduced based on the concept of structural controllability and recent developments in structural techniques. The simplicity and effectiveness of this approa ch are demonstrated using the expanded Williams-Otto plant as a case s tudy.