Fractional Order Pole Placement for a buck converter based on commensurable transfer function
| Autor: | João Edgar Chaves Filho, Florindo Antonio de Carvalho Ayres Júnior, Renan Landau Paiva de Medeiros, Iury Bessa, Carlos Tavares da Costa Junior, Vinicius Matheus Batista Pereira, Alessandra Ribeiro de Menezes, Nei J. S. Farias, Marcelo Kaminski Lenzi |
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| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Buck converter Applied Mathematics 020208 electrical & electronic engineering 02 engineering and technology Transfer function Computer Science Applications 020901 industrial engineering & automation Control and Systems Engineering Control theory Robustness (computer science) Full state feedback 0202 electrical engineering electronic engineering information engineering Fractional-order control Electrical and Electronic Engineering Instrumentation Parametric statistics Mathematics Performance specification |
| Zdroj: | ISA Transactions. 107:370-384 |
| ISSN: | 0019-0578 |
| Popis: | In this work, a novel methodology for tuning fractional order controller, so-called fractional order pole placement (FOPP) is proposed. The proposed methodology extends classical (integer order) pole placement technique, using commensurable transfer functions for representing fractional order controllers and placing the fractional dominant poles within an extended stability region based on three terms fractional transfer functions. The designed fractional order controller can be digitally implemented by using the Oustaloup integer approximation of the fractional order dynamics with Hankel model reduction. The proposed FOPP is used to design fractional order controllers for a DC/DC buck converter. The experimental tests include comparisons between the proposed FOPP and other tuning methodologies for integer and fractional order controllers for the DC/DC buck converter that is subject to load, parametric, and load variations. Integral indices are computed to aid the assessment of the control strategies with respect to the robustness, performance specification compliance, and control effort. The results show that the proposed method outperforms the other approaches when occurs the variations. |
| Databáze: | OpenAIRE |
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