Journal of System Simulation ›› 2019, Vol. 31 ›› Issue (10): 2093-2102.doi: 10.16182/j.issn1004731x.joss.17-0415

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Optimized Linear ADRC Control for a Class of Fractional-Order Chaotic Systems

Huang Yu, Xie Tian, Wu Rui   

  1. Hebei Engineering Research Center of Simulation & Optimized Control for Power Generation, North China Electric Power University, Baoding 071003, China
  • Received:2017-09-04 Revised:2017-12-01 Online:2019-10-10 Published:2019-12-12

Abstract: Linear active disturbance rejection control has many parameters and it is difficult to obtain appropriate parameters. Therefore, a quantum-behaved particle swarm optimization algorithm based on cosine decreasing function is proposed in this article for searching optimal LADRC parameters. In this algorithm, cosine decreasing function and updated equation of quantum-behaved particle swarm optimization algorithm are combined. By using the variable characteristic of cosine decreasing function with the increase of iteration times, the original global optimization ability of quantum particle swarm optimization is retained and its poor local optimization ability is overcome. And the simulation results show that the LADRC optimized by COSQPSO can suppress overshoot, reduce steady-state error, and has strong anti-jamming ability.

Key words: fractional-order chaotic system, linear ADRC, quantum-behaved particle swarm searching algorithm, cosine decreasing function

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