Journal of Applied Sciences ›› 2017, Vol. 35 ›› Issue (6): 786-796.doi: 10.3969/j.issn.0255-8297.2017.06.012

• Control and System • Previous Articles     Next Articles

Prescribed Performance Nonlinear PID Control for Uncertain Continuous Systems

CHEN Long-sheng, WANG Qi   

  1. School of Aircraft Engineering, Nanchang Hangkong University, Nanchang 330063, China
  • Received:2017-01-13 Revised:2017-04-23 Online:2017-11-30 Published:2017-11-30

Abstract:

The nonlinear PID controller is studied for uncertain continuous systems only with the systems' input and output (I/O) data. Under the condition of continuously differentiable reference input and output signal, the prescribed performance control theory is considered. Based on the performance function and the error transformation theory, a simple nonlinear function is then designed to construct a nonlinear PID controller with feasibility proved by theoretical analysis. The proposed controller inherits the advantages of traditional PID with better adaptability robustness and anti-disturbance performance, and better flexibility in parameter adjustment as well. Effectiveness of the results is shown with numerical examples.

Key words: anti-disturbance, robustness and adaptability, prescribed performance control, nonlinear PID controller

CLC Number: