TY - BOOK ID - 211124 TI - Windup in control : its effects and their prevention PY - 2006 SN - 128061191X 9786610611911 184628323X 1846283221 184996579X PB - London : Springer, DB - UniCat KW - Feedback control systems. KW - Automatic control KW - Automatic control. KW - Reliability. KW - Feedback mechanisms KW - Feedback systems KW - Automation KW - Discrete-time systems KW - Adaptive control systems KW - Feedforward control systems KW - Control engineering KW - Control equipment KW - Control theory KW - Engineering instruments KW - Programmable controllers KW - Chemical engineering. KW - Mechanical engineering. KW - Computer engineering. KW - Control and Systems Theory. KW - Industrial Chemistry/Chemical Engineering. KW - Mechanical Engineering. KW - Electrical Engineering. KW - Computers KW - Engineering, Mechanical KW - Engineering KW - Machinery KW - Steam engineering KW - Chemistry, Industrial KW - Engineering, Chemical KW - Industrial chemistry KW - Chemistry, Technical KW - Metallurgy KW - Design and construction KW - Control engineering. KW - Electrical engineering. KW - Electric engineering UR - https://www.unicat.be/uniCat?func=search&query=sysid:211124 AB - Actuator saturation is probably the most frequent nonlinearity encountered in control applications. Input saturation leads to controller windup, removable by structural modification during compensator realization and plant windup which calls for additional dynamics. Peter Hippe presents solutions to the windup prevention problem for stable and unstable single-input-single-output and multiple-input-multiple-output (MIMO) systems. The solutions use only standard tools for the investigation of linear systems – state equations, transfer functions, etc. The stability tests are based on well-known criteria for loops consisting of a linear part with isolated sector-type nonlinearity. Less rigorous "engineering solutions" which guarantee improved performance but without strict proof of stability are also demonstrated. MIMO systems in which the behaviour of controlled variables is decoupled require specific input vectors and so also suffer problems of directionality when their input signals saturate. This can have extremely deleterious consequences for closed-loop behaviour. Windup in Control offers an exact solution to this directionality problem for stable and unstable systems. The methods laid out in this survey also integrate solutions for applications with rate-constrained actuators and for bumpless transfer from manual to automatic during system start-up or in override control. Developments in control methods are always supplemented by easily repeated numerical examples. Academics doing control-related research in electronics, mechanics, or mechatronics and engineers working in the process industries will find this book an extremely useful overview of systematic windup prevention for all kinds of systems. It also has valuable insights to offer the graduate student of control. Advances in Industrial Control aims to report and encourage the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control. ER -