搜索条件

搜索结果

  • Control of Linear Second-Order Systems by Fuzzy Logic-Based Algorithm

    Article thumbnail: Control of Linear Second-Order Systems by Fuzzy Logic-Based Algorithm
    Type:
    Article
    摘抄:
    The control of  exible structures employing the passivity approach has been extended to systems having noncollocated input/output pairs by introducing an observer that incorporates the nominal dynamical model of the plant. The passive observer-based control is applied to the American Control Conference benchmark problem, whereby, the control force emulates a dynamic vibration absorber attached to a virtual wall with passive control elements (spring, mass, and dashpot). The springs and mass elements of the controller are constant, whereas the damping coefŽ cients are selected as time dependent in an attempt to choose continuously the most appropriate amount of damping in compliance with the design goals. A novel approach is introduced, whereby the passive observer-based control law is modiŽ ed by varying the damping coefŽ cient of the virtual dashpot by means of an adaptive fuzzy logic algorithm. This modiŽ ed system exhibits quick settling times and desirable performance characteristics. Results from the statistical robustness analysis for the developed controller are compared to 10 other (linear) solutionsof the benchmarkproblem. The comparisonis based onrobust stability, robust performance (settling time), and control effort. The results obtained by the adaptive fuzzy logic algorithm are superior to those obtained by all other methods, and, consequently, further application of the fuzzy algorithm is advocated.
    作者:
    Weller, Tanchum; Cohen, Kelly, and Ben-Asher, Joseph Z.
    提交者:
    Kelly Cohen
    上传日期:
    02/08/2017
    更改日期:
    04/05/2017
    创建:
    2001-06
    证书:
    All rights reserved