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Title page for ETD etd-03222006-092526

Type of Document Dissertation
Author Rutherford, Mark Leland
Author's Email Address mark.rutherford@Cagents.com
URN etd-03222006-092526
Title The theory, development, and implementation of partitioned error control
Degree PhD
Department Chemical Engineering
Advisory Committee
Advisor Name Title
Kenneth A. Debelak Committee Chair
G. Kane Jennings Committee Member
M. Douglas LeVan Committee Member
Nilanjan Sarkar Committee Member
R. Robert Balcarcel Committee Member
  • Control theory
  • H-infinity
  • two-degree-of-freedom
  • Inverse Model Prefilter
  • Partitioned Error Control
  • Internal Model Control
  • Chemical process control
Date of Defense 2006-03-20
Availability unrestricted

Mark Leland Rutherford

Dissertation under the direction of Professor Kenneth A. Debelak

Partitioned Error Control (PEC) is a two-degree-of-freedom control structure which utilizes two tunable controllers and an internal model. This structure allows for independent design of controllers for servo and regulatory responses. The theory of PEC is developed and compared to other two-degree-of-freedom controllers, most notably internal model prefilters and two-degree-of-freedom H‡ control. An analysis is presented which shows PEC performance in the presence of modeling error is equivalent to other techniques when they are designed on the same basis. A procedure is developed that uses information from the regulatory controller to aid in the design of the servo controller. Finally, case studies for the application of PEC on an inverted pendulum on a cart and a binary distillation column are presented. PEC is a viable alternative to existing techniques with greater breadth of application and greater flexibility in design choices, including tuning options.

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