Design of gain-scheduling PID controllers for Z-source inverter using iterative reduction-based heuristic algorithms

Ali Rıza Yılmaz, Bilal Erol, Akın Delibaşı, Burcu Erkmen

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper presents gain-scheduling control strategy for Z-source inverter used in traction motors. An iterative reduction-based heuristic algorithms (IRHA) is introduced for optimization of controller parameters. Since it is difficult to implement a stabilizable optimization with the conventional heuristic algorithm, optimum design can be achieved via creating stable sets by employing IRHA. In this optimization method, a new reduced subset is created at the end of each iteration, thereby reducing computation complexity. The proposed scheme adjusts proportional, integral, differential and derivative kick coefficients (K p , K i , K d and T d ). In this study, various PID controllers are designed using IRHA and H norm-based optimization methods. Furthermore, in order to overcome non-linearity which exists in the nature of ZSI, gain scheduling is resorted to. The effectiveness of the proposed gain-scheduled controller structure is demonstrated over different input values and voltage fluctuations.

Original languageEnglish
Pages (from-to)162-176
Number of pages15
JournalSimulation Modelling Practice and Theory
Volume94
Early online date22 Feb 2019
DOIs
Publication statusPublished - 1 Jul 2019
Externally publishedYes

Keywords

  • H Controller
  • Heuristic Algorithm
  • Power Converter
  • Z-Source Inverter

ASJC Scopus subject areas

  • Software
  • Modelling and Simulation
  • Hardware and Architecture

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