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Development and Verification Test of a 6.6-kV 200-kVA Transformerless STATCOM Based on MMCC-SDBC Using SiC MOSFETs
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| Author(s) |
Laxman MAHARJAN |
| Abstract |
This paper discusses development and verification test results of a 6.6-kV 200-kVA transformerlessSTATCOM (static synchronous compensator). The STATCOM is characterized by the use of MMCC-SDBC (modular multilevel cascade converter - single-delta bridge-cells) topology and SiC (silicon carbide) MOSFETs (metal-oxide-semiconductor field-effect transistors). The paper also briefly discusses a control method for the 6.6-kV system with emphasis on a dc-capacitor voltage control. The dc-capacitor voltage control, which consists of an inter-phase balancing control and an intra-phase balancing control,is different from the ones presented earlier. Successful test results confirm the efficacy of the system forthe control of positive- as well as negative-sequence reactive powers. |
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| Filename: | 0121-epe2019-full-11545173.pdf |
| Filesize: | 2.509 MB |
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| Type |
Members Only |
| Date |
Last modified 2020-08-14 by System |
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