A universal controller for grid-connected voltage-source converters

Loading...
Thumbnail Image
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2021-10
Major/Subject
Mcode
Degree programme
Language
en
Pages
10
Series
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
Abstract
The power-synchronization control (PSC) and vector current control (VCC), the latter including cascaded outer loops, are, respectively, considered to be grid-forming and grid-following schemes. They have significant structural differences. Despite that, it is here shown that the two schemes can be unified by making a series of minor modifications to PSC. This results in a universal controller, allowing various combinations of the two schemes to be explored. Fundamentally, it allows PSC to be used as a guideline for a robust VCC design, permitting stable and well-performing operation irrespective of the grid strength.
Description
Keywords
Grid-connected converters, Grid-following control, Grid-forming control, Robustness, Voltage-source converters
Other note
Citation
Harnefors, L, Kukkola, J, Routimo, M, Hinkkanen, M & Wang, X 2021, ' A universal controller for grid-connected voltage-source converters ', IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, vol. 9, no. 5, pp. 5761-5770 . https://doi.org/10.1109/JESTPE.2020.3039407