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Design and Implementation of a 154-kV +/- 50-Mvar Transmission STATCOM Based on 21-Level Cascaded Multilevel Converter
Date
2012-05-01
Author
Gultekin, Burhan
Gercek, Cem Ozgur
Atalik, Tevhid
Deniz, Mustafa
Bicer, Nazan
Ermiş, Muammer
Kose, Kemal Nadir
Ermis, Cezmi
Koc, Erkan
Cadirci, Isik
Acik, Adnan
Akkaya, Yener
Toygar, Hikmet
Bideci, Semih
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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In this research work, the design and implementation of a 154-kV +/- 50-Mvar transmission static synchronous compensator (T-STATCOM) have been carried out primarily for the purposes of reactive power compensation and terminal voltage regulation and secondarily for power system stability. The implemented T-STATCOM consists of five 10.5-kV +/- 12-Mvar cascaded multilevel converter (CMC) modules operating in parallel. The power stage of each CMC is composed of five series-connected H-bridges (HBs) in each phase, thus resulting in 21-level line-to-line voltages. Due to modularity and flexibility of implemented HBs, each CMC module has reached a power density of 250 kvar/m(3), thus making the mobility of the system implementable. DC-link capacitor voltages of HBs are perfectly balanced by means of the modified selective swapping algorithm proposed. The field tests carried out at full load in the 154-kV transformer substation where T-STATCOM is installed have shown that the steady-state and transient responses of the system are quite satisfactory.
Subject Keywords
Modified selective swapping (MSS)
,
Multilevel converters (MCs)
,
Terminal voltage regulation
,
Transmission static synchronous compensator (STATCOM) (T-STATCOM)
URI
https://hdl.handle.net/11511/29979
Journal
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
DOI
https://doi.org/10.1109/tia.2012.2190690
Collections
Graduate School of Natural and Applied Sciences, Article
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B. Gultekin et al., “Design and Implementation of a 154-kV +/- 50-Mvar Transmission STATCOM Based on 21-Level Cascaded Multilevel Converter,”
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
, pp. 1030–1045, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/29979.