A new DC voltage balancing method for cascaded multilevel inverter based statcom

Deniz, Mustafa
Gultekin, Burhan
Gercek, Cem Oezguer
Atalik, Tevhid
Cadirci, Isik
Ermis, Mummer
It has been mentioned in the literature that, among the multilevel inverter topologies used for STATCOM applications, the cascaded multilevel topology is the most advantageous and economical one. On the other hand, the main problem of this topology comes out to be the difficulty of sustaining the DC capacitors' mean voltages. This issue is very important for obtaining an output voltage with low THD and having equal device stresses. In this work, a new DC voltage balancing method (Selective-Swapping Algorithm) for cascaded multilevel inverter based STATCOM applications is investigated and the results are given. Moreover, these results are compared with the ones obtained for the other DC voltage equalization methods given in the literature.


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Although the multilevel inverter topologics are comprehensively studied in power conversion issues, novel topologies are still being sought in order to decrease required semiconductors for same output levels that are currently obtained with classical multilevel topologies. Several studies have been reported in the literature on multilevel inverter topologies and control techniques. However, the cascaded multilevel inverter topology is one of the most widely studied topology to increase the output levels, as...
Citation Formats
M. Deniz, B. Gultekin, C. O. Gercek, T. Atalik, I. Cadirci, and M. Ermis, “A new DC voltage balancing method for cascaded multilevel inverter based statcom,” 2007, p. 532, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/68342.