Loading...

Rapid admittance measurement of power converters using Double-PLL grid-following inverters

Zhou, W ; Sharif University of Technology | 2024

105 Viewed
  1. Type of Document: Article
  2. DOI: 10.1109/TPWRD.2024.3363762
  3. Publisher: 2024
  4. Abstract:
  5. The increasing use of inverter-based resources (IBRs) in power systems highlights the need for a deep understanding of their stability and dynamics. Traditional analytical models, limited by the black-box nature of IBRs, underscore the importance of frequency-domain methods through measured admittance. Facing challenges in real-world admittance measurement, such as the absence of ideal voltage or current sources, the use of measurement inverters as perturbation sources has emerged as a promising approach, despite drawbacks like reduced system stability and increased measurement time. This article introduces a novel control strategy for measurement inverters, elucidating the impact of abc/dq and dq/abc transformations on admittance measurement. The key advancements are an analysis of the admittance contributions from these transformations and the implementation of double phase-locked loops in the measurement inverters, aimed at improving stability and decreasing measurement duration. © 1986-2012 IEEE
  6. Keywords:
  7. Admittance measurement ; Dynamics ; Grid-following inverter ; Phase-locked loop ; Stability ; Electric inverters ; Frequency domain analysis ; Locks (fasteners) ; Perturbation techniques ; Admittance ; Admittance measurements ; Grid-following inverte ; Impedance ; Impedance measurement ; Inverter-based ; Measurements of ; Perturbation method ; Power systems stability ; Phase locked loops
  8. Source: IEEE Transactions on Power Delivery ; Volume 39, Issue 3 , 2024 , Pages 1407-1419 ; 08858977 (ISSN)
  9. URL: https://ieeexplore.ieee.org/document/10428091