Delay-Dependent Analysis of MG GFM-VSG Using Rekasius Substitution

Mohamed I. O., Zaki M., AYASUN S.

7th IEEE Global Power, Energy and Communication Conference, GPECOM 2025, Bochum, Almanya, 11 - 13 Haziran 2025, ss.641-646, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/gpecom65896.2025.11061865
  • Basıldığı Şehir: Bochum
  • Basıldığı Ülke: Almanya
  • Sayfa Sayıları: ss.641-646
  • Anahtar Kelimeler: Frequency control, grid-forming control, Rekasius substitution, stability, time delays
  • Gazi Üniversitesi Adresli: Evet

Özet

The transition to net-zero energy systems has transformed the landscape of the power grid. Conventional large synchronous generators are being supplanted by inverter-based resource (IBR) technologies. This shift toward an IBR-dominant power grid is altering the operational dynamics of the power system. Furthermore, the control and coordination of these sources require the use of an open communication network that introduces time delays, negatively impacting frequency stability. This article primarily investigates the effects of grid-forming (GFM) inverter control on stability delay margins (SDMs) within an islanded microgrid. SDMs are computed using a precise frequency-domain approach based on resultant theory and Rekasius substitution. MATLAB and Simulink are employed to validate the accuracy of the theoretical results.