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Design of an H∞-optimal FOPID controller using particle swarm optimization

Majid, Z ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. DOI: 10.1109/CHICC.2006.4347215
  3. Publisher: 2007
  4. Abstract:
  5. This paper proposes a novel method to design an H∞-optimal Fractional Order PLD (FOPLD) controller with ability to control the transient, steady-state response and stability margins characteristics. The method uses particle swarm optimization algorithm and operates based on minimizing a general cost function. Minimization of the cost function is carried out subject to the H∞-norm; this norm is also included in the cost function to achieve its lower value. The method is applied to a phase-locked-loop motor speed system and an electromagnetic suspension system as two examples to illustrate the design procedure and verify performance of the proposed controller. The results show that the proposed method is capable of improving system responses as compared to the conventional H∞-optimal controller while still maintains the H∞-optimality of the solutions
  6. Keywords:
  7. Algorithms ; Cost functions ; Optimal control systems ; Optimization ; Suspensions (components) ; Electromagnetic suspension system ; Particle swarm optimization algorithm ; Stability margins ; Three term control systems
  8. Source: 26th Chinese Control Conference, CCC 2007, Zhangjiajie, 26 July 2007 through 31 July 2007 ; October , 2007 , Pages 435-440 ; 7900719229 (ISBN); 9787900719225 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/4347215