Abstract | ||
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The requirement of a large number of sizeable capacitors in traditional modular multilevel converter (MMC) submodules is seen as a major barrier hampering its widespread use in medium-voltage applications. In order to reduce the value of capacitance, this paper presents a modified modular multilevel converter (M-MMC) topology which offers inherent alleviated capacitor voltage fluctuations compared to traditional MMC. Its operating principle, modulation and capacitor voltage balancing strategies are described in detail. Besides, a novel capacitor voltage fluctuation suppression scheme is also proposed to further reduce the second-order capacitor voltage ripples. Finally, both a three-phase prototype of M-MMC and traditional MMC have been built in the laboratory. Effectiveness of the proposed M-MMC topology and control methods is verified experimentally by comparing with the traditional MMC. |
Year | DOI | Venue |
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2015 | 10.1109/TIE.2015.2423665 | IEEE Trans. Industrial Electronics |
Keywords | Field | DocType |
Capacitors,Fluctuations,Voltage fluctuations,Voltage control,Topology,Converters,Voltage measurement | Capacitor,Control engineering,Pre-charge,Electronic engineering,Voltage regulation,Decoupling capacitor,Voltage multiplier,Engineering,Electrical engineering,Voltage regulator,Voltage divider,Dropout voltage | Journal |
Volume | Issue | ISSN |
PP | 99 | 0278-0046 |
Citations | PageRank | References |
4 | 0.49 | 13 |
Authors | ||
6 |
Name | Order | Citations | PageRank |
---|---|---|---|
Binbin Li | 1 | 10 | 6.52 |
Yi Zhang | 2 | 4 | 0.49 |
Gaolin Wang | 3 | 104 | 16.33 |
Wei Sun | 4 | 4 | 1.16 |
Dianguo Xu | 5 | 292 | 37.51 |
Wei Wang | 6 | 23 | 8.30 |