@inproceedings{a96f6093754542fc9ea45e2fbc81fec1,
title = "Inherent Redundancy of SDBC-MMCC based STATCOM in the Overmodulation Region",
abstract = "The single delta bridge cell modular multilevel cascaded converter (SDBC-MMCC) has emerged as an interesting topology for Static Synchronous Compensator (STATCOM) applications. Since this converter is composed of tens/hundreds of components, reliability issues arise and redundant cells must be employed to fulfill the reliability requirements, increasing the initial cost of the STATCOM. In fact, there is a potential for fault tolerant operation when the overmodulation region is considered. This work aims to explore the inherent redundancy of SDBC-MMCC in the overmodulation region. Initially, the boundary conditions between linear and overmodulation region are analytically derived. Then, the inherent fault tolerance is evaluated based on 17 MVA/13.8 kV SDBC-MMCC based STATCOM case study with 24 cells per cluster. The results indicate that the converter is able to exchange rated power with the grid after 1 failure, with harmonic distortion within the limits suggested by the standards.",
keywords = "Automatic voltage control, Analytical models, Capacitors, Redundancy, Topology, Capacitance, Current control",
author = "D.C. Mendon{\c c}a and A.F. Cupertino and H.A. Pereira and S.I. Seleme and R. Teodorescu",
year = "2019",
month = dec,
doi = "10.1109/COBEP/SPEC44138.2019.9065447",
language = "English",
isbn = "978-1-7281-4181-7",
series = "Brazilian Power Electronics Conference and Southern Power Electronics Conference (COBEP/SPEC)",
publisher = "IEEE",
booktitle = "2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC)",
address = "United States",
note = "2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC) ; Conference date: 01-12-2019 Through 04-12-2019",
}