Fractional-order controllers for switching DC/DC converters using the K-factor method: Analysis and circuit realization

Cengelci E., GARİP M., Elwakil A. S.

INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS, cilt.50, sa.2, ss.588-613, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 50 Sayı: 2
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1002/cta.3168
  • Dergi Adı: INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Compendex, INSPEC, Metadex, zbMATH, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.588-613
  • Anahtar Kelimeler: fractional-order circuits, frequency domain analysis, K-factor stability, switching converters, SYSTEMS, TIME
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Switching DC/DC converters are closed loop systems requiring controllers to stabilize and optimize their performance. A practical method for designing these controllers through pole/zero placement adjustment is the K-factor method. This method can easily be implemented using RC op-amp circuits given a target crossover frequency and phase margin. Here, we extend this method to the fractional-order domain and present detailed analytical formulae to calculate all component values in two types of op-amp-based compensators. Mathematical analysis, circuit simulation, and experimental results all correlate very well.