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Robust Behavior of Subvariable Control of Pseudo Derivative Feedback

American Society of Mechanical Engineers. Winter Annual MeetingL. Chen (Writer on automatic control)B. Cheng (Writer on automatic control)X. Tang

出版	American Society of Mechanical Engineers, 1989
URL	http://books.google.com.hk/books?id=5gMj0AEACAAJ&hl=&source=gbs_api

註釋A new strategy for control of the real plants or processes is briefly introduced. The strategy is termed Subvariable Control of Pseudo-Derivative-Feedback Algorithm (PDFSV) and based on the nominal plant parameters and the practical constraints imposed by finite capability of real components. This paper emphasizes the robust performance behavior of PDFSV control systems with standard structures and fixed control coefficients. Theoretical analysis and simulation results through a simple show that for presence of plant uncertainty, the PDFSV control system designed the following the Root Configuration Theory can become absolutely robust and instantaneously adaptive provided sufficient energy is supplied. Comparisons indicate that the PDFSV control is much superior in robust performance characteristics to the PI control being extensively used in industry when the plant parameters are not well known or vary during operation and the external loads disturb the system, especially when the disturbances are sinusoidal in form, and, by implication, stochastic in form.