• Title/Summary/Keyword: nonaffine nonlinear system

Search Result 13, Processing Time 0.028 seconds

Adaptive Neural Control for Pure-feedback Nonlinear Systems (순궤환 비선형 시스템의 적응 신경망 제어기)

  • Park Jang-Hyun;Kim Do-Hee;Kim Seong-Hwan;Moon Chae-Joo;Choi Jun-Ho
    • Proceedings of the KIPE Conference
    • /
    • 2006.06a
    • /
    • pp.523-525
    • /
    • 2006
  • Adaptive neural state-feedback controllers for the fully nonaffine pure-feedback nonlinear system are presented in this paper. By reformulating the original pure-feedback system to a standard normal form with respect to newly defined state variables, the proposed controllers require no backstepping design procedures. Avoiding backstepping makes the controller structure and stability analysis considerably to be simplified. The proposed controllers employ only one neural network to approximate unknown ideal controllers, which highlights the simplicity of the proposed neural controller.

  • PDF

Adaptive Neural Control of Nonlinear Pure-feedback Systems (완전궤환 비선형 계통에 대한 적응 신경망 제어기)

  • Park, Jang-Hyun;Kim, Seong-Hwan;Chang, Young-Hak
    • Journal of IKEEE
    • /
    • v.14 no.3
    • /
    • pp.182-189
    • /
    • 2010
  • A new Adaptive neural state-feedback controller for the fully nonaffine pure-feedback nonlinear system are presented in this paper. By reformulating the original pure-feedback system to a standard normal form with respect to newly defined state variables, the proposed controller requires no backstepping design procedure. Avoiding backstepping makes the controller structure and stability analysis considerably simple. The proposed controller employs only one neural network to approximate unknown ideal controllers, which highlights the simplicity of the proposed neural controller. Simulation examples demonstrate the efficiency and performance of the proposed approach.

Adaptive Output-feedback Neural Control of uncertain pure-feedback nonlinear systems (불확실한 pure-feedback 비선형 계통에 대한 출력 궤환 적응 신경망 제어기)

  • Park, Jang-Hyun;Kim, Seong-Hwan;Jang, Young-Hak;Ryoo, Young-Jae
    • Journal of the Korean Institute of Intelligent Systems
    • /
    • v.23 no.6
    • /
    • pp.494-499
    • /
    • 2013
  • Based on the state-feedback adaptive neuro-control algorithm for a SISO nonaffine pure-feedback nonlinear system proposed in [15], an output-feedback controller is proposed in this paper. The output-feedback adaptive neural-net controller for the considered nonlinear system has not been previously proposed in any other literatures yet. The proposed output-feedback controller inherits all the advantages of [15] such that it does not adopt backstepping and this results in relatively simple control and adapting laws. Only one neural network is required for the proposed adaptive controller. The proposed neural-net control scheme expands the applicable class of nonlinear systems.