Dynamic Analysis of Modular Multilevel Converters

被引：492

作者：

Harnefors, Lennart ^{[1
,2
]}

Antonopoulos, Antonios ^{[2
]}

Norrga, Staffan ^{[2
]}

Angquist, Lennart ^{[2
]}

Nee, Hans-Peter ^{[2
]}

机构：

[1] ABB Power Syst HVDC, S-77180 Ludvika, Sweden

[2] Royal Inst Technol KTH, S-10044 Stockholm, Sweden

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2013年 / 60卷 / 07期

关键词：

Control; dynamic systems; modular multilevel converters (M2Cs); voltage-source converters (VSCs);

D O I：

10.1109/TIE.2012.2194974

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Theory for the dynamics of modular multilevel converters is developed in this paper. It is shown that the sum capacitor voltage in each arm often can be considered instead of the individual capacitor voltages, thereby significantly reducing the complexity of the system model. Two selections of the so-called insertion indices, which both compensate for the sum-capacitor-voltage ripples, are considered. The dynamic systems which respectively result from these selections are analyzed. An effective dc-bus model, which takes into account the contribution from the submodule capacitors, is obtained. Finally, explicit formulas for the stationary sum-capacitor-voltage ripples are derived.

引用

页码：2526 / 2537

页数：12

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