✦ LIBER ✦

AN ADAPTIVE FEEDFORWARD CONTROLLER FOR REJECTION OF PERIODIC DISTURBANCES

✍ Scribed by H.-S. Na; Y. Park

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 205 KB
Volume: 201
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.1996.0787

No coin nor oath required. For personal study only.

✦ Synopsis

The issue of rejecting periodic disturbances arises in various applications dealing with rotating machinery. A novel adaptive feedforward controller (AFC) design method for rejecting periodic disturbance is proposed. It can be added to an existing feedback control system without altering the original closed loop characteristics, such as the stability margin and transfer functions. An adaptive algorithm derived for the proposed controller based on the steepest gradient descent method turns out to be identical to the popular delayed-x LMS algorithm. A number of computer simulations were carried out to demonstrate the salient features of the proposed AFC compared to the conventional one. The proposed method can be useful for control engineers in designing an adaptive feedforward controller for the rejection of the periodic disturbances.

📜 SIMILAR VOLUMES

AN ALTERNATIVE FEEDBACK STRUCTURE FOR TH

AN ALTERNATIVE FEEDBACK STRUCTURE FOR THE ADAPTIVE ACTIVE CONTROL OF PERIODIC AND TIME-VARYING PERIODIC DISTURBANCES

✍ M. Buchard; B. Paillard 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 172 KB

An alternative feedback structure, inspired from a speech coding structure, is introduced for the adaptive active control of periodic and time-varying periodic disturbances. The new structure is an Internal Model Control (IMC) structure. It separates the information and the processing pertaining to

Disturbance rejection in a class of adap

Disturbance rejection in a class of adaptive control laws for distributed parameter systems

✍ Jun Y. Kim; Joseph Bentsman 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 480 KB 👁 2 views

Design of parallel cascade control for d

Design of parallel cascade control for disturbance-rejection

✍ Cheng-Ching Yu 📂 Article 📅 1988 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 509 KB

A new approach is presented to overcome load disturbance problems. Based on the parallel cascade control structure, the primary controller is designed for the servo response, and the secondary controller is designed for the disturbance-rejection purpose. A perfect disturbance-rejection controller is

Control structures for disturbance rejec

Control structures for disturbance rejection and decoupling of distillation

✍ Kurt E. Häggblom; Kurt V. Waller 📂 Article 📅 1990 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 538 KB

A learning feedforward control strategy

A learning feedforward control strategy for the concentration control of recycle reactors. Part II: Disturbance control

✍ Dr.-Ing. Klaus Schnitzlein; Prof. Dr. Arno Löwe 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 523 KB

AN ADAPTIVE CONTROL SCHEME FOR RECOVERIN

AN ADAPTIVE CONTROL SCHEME FOR RECOVERING PERIODIC MOTION OF CHAOTIC SYSTEMS

✍ H.Y. Hu 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 285 KB

The paper presents an adaptive control scheme for recovering the original dynamics of a nonlinear system after a sudden disturbance in a system parameter by controlling the system parameter through linear feedback. The key problem is to choose the control stiffness in the feedback by assigning the p