Classical Feedback Control with Nonlinear Multi-Loop Systems

Classical Feedback Control with Nonlinear Multi-Loop Systems describes the design of high-performance feedback control systems, emphasizing the frequency-domain approach widely used in practical engineering. It presents design methods for high-order nonlinear single- and multi-loop controllers with efficient analog and digital implementations. Bode integrals are employed to estimate the available system performance and to determine the ideal frequency responses that maximize the disturbance rejection and feedback bandwidth. Nonlinear dynamic compensators provide global stability and improve transient responses. This book serves as a unique text for an advanced course in control system engineering, and as a valuable reference for practicing engineers competing in today's industrial environment.

Boris J. Lurie worked for many years in the telecommunication and aerospace industries, and taught at Russian, Israeli, and American universities. He was a senior staff member of the Jet Propulsion Laboratory, California Institute of Technology. Paul J. Enright currently works in the field of quantitative finance in Chicago. As a member of the technical staff at the Jet Propulsion Laboratory, California Institute of Technology, he designed attitude control systems for interplanetary spacecraft and conducted research in nonlinear control.

Preface. To Instructors. Feedback and Sensitivity. Feedforward, Multi-loop, and MIMO Systems. Frequency Response Methods. Shaping the Loop Frequency Response. Compensator Design. Analog Controller Implementation. Linear Links and System Simulation. Introduction to Alternative Methods of Controller Design. Adaptive Systems. Provision of Global Stability. Describing Functions. Process Instability. Multiwindow Controllers. Nonlinear Multi-Loop Systems with Uncertainty. Feedback Control, Elementary Treatment. Frequency Responses. Causal Systems, Passive Systems, Positive Real Functions, and Collocated Control. Derivation of Bode Integrals. Program for Phase Calculation. Generic Single-Loop Feedback System. Effect of Feedback on Mobility. Regulation. Balanced Bridge Feedback. Phase-Gain Relation for Describing Functions. Discussions. Design Sequence. Examples. Bode Step Toolbox. Nonlinear Multi-loop Feedback Control (Patent Application). Bibliography. Notation. Index