A Cascaded Hybrid Synchronization Control for Grid-Connected InvertersShow others and affiliations
2026 (English)In: IEEE transactions on power electronics, ISSN 0885-8993, E-ISSN 1941-0107, Vol. 41, no 1, p. 137-142Article in journal (Refereed) Published
Abstract [en]
This letter revisits vector voltage control (VVC) and finds that by introducing a P-E-q droop into the q-axis voltage reference, a conventional phase-locked loop (PLL) can effectively substitute the power synchronization control for replicating the power-frequency (angle) dynamics of grid-forming (GFM) inverters. Consequently, a simple GFM control strategy that retains the traditional PLL and VVC is proposed. In contrast to recently reported PLL-based GFM approaches, the method eliminates the need for virtual admittance control and offers higher stability robustness across a wide range of grid short-circuit ratios.
Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2026. Vol. 41, no 1, p. 137-142
Keywords [en]
Phase locked loops, Voltage control, Grid forming, Synchronization, Inverters, Robustness, Power system stability, Regulation, Damping, Circuit stability, Grid forming (GFM), inverter-based resources (IBRs), power control and stability
National Category
Power Systems and Components
Identifiers
URN: urn:nbn:se:kth:diva-375068DOI: 10.1109/TPEL.2025.3603944ISI: 001600752700013Scopus ID: 2-s2.0-105014774749OAI: oai:DiVA.org:kth-375068DiVA, id: diva2:2028425
Note
QC 20260114
2026-01-142026-01-142026-01-14Bibliographically approved