DC Voltage Balancing for PWM Cascaded H-Bridge Converter Based STATCOM
- 1 November 2006
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics
- No. 1553572X,p. 1840-1845
- https://doi.org/10.1109/iecon.2006.347549
Abstract
This paper presents a new control method for cascaded connected H-bridge converter based STATCOMs. These converters have been classically commutated at fundamental line-frequencies, but the evolution of power semiconductors has allowed to increase switching frequencies and the power ratings of these devices, permitting the use of PWM modulation techniques. This paper mainly focuses the DC bus voltage balancing problems, and proposes a new control technique that solves these balancing problems maintaining the delivered reactive power equally distributed among all the H-bridges of the converterKeywords
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