High-Speed Models of Systems with Modular Multi-Level Converters

被引：0
作者：
Vorontsov A.G. [1 ,2 ]
Pronin M.V. [2 ]
Soloviev A.P. [3 ]
Glushakov V.V. [4 ]
Rozbitsky G.G. [5 ]
Dikun I.A. [2 ]
机构：
[1] AO Scientific and Industrial Center “Power Electric Systems,”, St. Petersburg
[2] St. Petersburg State Electrotechnical University “LETI”, St. Petersburg
[3] St. Petersburg Mining University of Empress Catherine II, St. Petersburg
[4] AO Power Machines, St. Petersburg
[5] ITMO University, St. Petersburg
来源：
Russian Electrical Engineering | 2024年 / 95卷 / 01期
关键词：
control system; model; modular multilevel converter; transistor–capacitor unit;
D O I：
10.3103/S1068371224010103
中图分类号：
学科分类号：
摘要：
Abstract: Modular multilevel converters (MMСs) constructed on low-voltage half bridge transistor–capacitor blocks (TCBs) allow one to create high-voltage installations without transformers. Such converters are used in wind power plants, power transmission, and electric drives. The energy reserves in an MMC are distributed among many TCBs. The voltages and currents at the input and output of the MMC have small distortions, but control systems are complex, A decrease in the frequency of currents at the input or output of the MMC leads to an increase in voltage ripples of TCB capacitors. To limit pulsations, internal contour currents are introduced into the MMC, and zero sequence components are used in control devices. The article presents high-speed models of systems with MMC, and the efficiency of control algorithms for an inverter with a passive load, as well as an electric drive with MMC and an induction motor is evaluated. A three-phase current corrector is proposed, which reduces their amplitude and reduces distortion. © Allerton Press, Inc. 2024. ISSN 1068-3712, Russian Electrical Engineering, 2024, Vol. 95, No. 1, pp. 41–50. Allerton Press, Inc., 2024. Russian Text The Author(s), 2024, published in Elektrotekhnika, 2024, No. 1, pp. 41–49.
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页码：41 / 50
页数：9
相关论文
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