Plantwide control synthesis qualitative

Be able to perform a conceptual synthesis of plantwide control structures (pairings) based on degrees-of-freedom analysis and qualitative guidelines. 

This chapter has introduced the importance of considering plantwide control early in the design process. A qualitative control synthesis method, combining the approaches suggested by Newell and Lee (1988) and Luyben and co-workers (1999), was presented to show how to generate alternative control configurations. The limitations of this qualitative approach have been highlighted and the need for the quantitative approach presented in Chapter 21, which involves analysis and dynamic simulation, has been established. 

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