Quantized feedback control for nonlinear feedforward systems with unknown output functions | IEEE Conference Publication | IEEE Xplore

Quantized feedback control for nonlinear feedforward systems with unknown output functions


Abstract:

The quantized feedback control is investigated for nonlinear feedforward systems with unknown control coefficients, unknown output functions and input quantization. The u...Show More

Abstract:

The quantized feedback control is investigated for nonlinear feedforward systems with unknown control coefficients, unknown output functions and input quantization. The unknown output function is Lipschitz continuous but may not be derivable, the unknown control coefficients are assumed to be bounded, and the input quantization is logarithmic. By combining the backstepping method and the sector bound approach, a time-varying quantized feedback controller is designed and a guideline for choosing the parameter of the input quantizer is provided to guarantee the boundedness and convergence of the closed-loop system states. Finally, a simulation example is presented to show the effectiveness of the control scheme.
Date of Conference: 29-31 May 2019
Date Added to IEEE Xplore: 11 July 2019
ISBN Information:
Conference Location: Shanghai, China

I. Introduction

Quantized feedback control has drawn considerable attention due to limited capacity or security constraints on the networked control systems [1]– [5]. The coarsest quantizer that quadratically stabilises a linear time-invariant system was given in [1]. The coarsest quantization densities for the stabilization of a multivariable system was derived in [2]. The adaptive state feedback control for uncertain nonlinear systems with input quantized was investigated in [4], while the adaptive output feedback quantized control was addressed in [5].

References

References is not available for this document.