@inproceedings{74b9a3c9ab874fe5ac0b6a9acdda19ac,
title = "Small Signal Model of Modular Multilevel Converter with Power Synchronization Control",
abstract = "Power synchronization control (PSC) is one of the popular control schemes in grid-forming control-based converters because it simulates the grid support capability of conventional synchronous generators. However, prior research is based on two-level converters which do not have complex internal circuits, and whether PSC can be directly applied to the modular multilevel converter (MMC) topology since MMC has sub-module capacitor voltage ripples and inherent second harmonic circulating current algorithm, has not been analyzed. This paper establishes the small signal model of MMC with PSC considering the MMC internal dynamic and circulating current suppression control (CCSC). The power oscillation phenomenon when grid short-circuit ratio (SCR) increases is also demonstrated with the closed-loop system eigenvalues calculation and verified with the experimental results.",
keywords = "Eigenvalues and eigenfunctions, Harmonic analysis, Heuristic algorithms, Multilevel converters, Power electronics, Synchronous generators, Topology, short-circuit ratio (SCR), power synchronization control (PSC), Modular multilevel converter (MMC), small signal model",
author = "Wentao Liu and Rui Wang and Tamas Kerekes and Tomislav Dragicevic and Remus Teodorescu",
year = "2023",
month = mar,
day = "23",
doi = "10.1109/APEC43580.2023.10131442",
language = "English",
isbn = "978-1-6654-7540-2",
series = "I E E E Applied Power Electronics Conference and Exposition. Conference Proceedings",
publisher = "IEEE (Institute of Electrical and Electronics Engineers)",
pages = "2815--2820",
booktitle = "APEC 2023 - 38th Annual IEEE Applied Power Electronics Conference and Exposition",
address = "United States",
note = "38th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2023 ; Conference date: 19-03-2023 Through 23-03-2023",
}