Interleaved Operation of Three-Level Neutral Point Clamped Converter Legs and Reduction of Circulating Currents Under SHE-PWM

被引：37

作者：

Konstantinou, Georgios ^{[1
,2
]}

Pou, Josep ^{[1
,2
]}

Capella, Gabriel J. ^{[3
]}

Song, Kejian ^{[4
,5
]}

Ceballos, Salvador ^{[6
]}

Agelidis, Vassilios G. ^{[1
,2
]}

机构：

[1] Univ New S Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia

[2] Univ New S Wales, AERI, Sydney, NSW 2052, Australia

[3] Tech Univ Catalonia, Terrassa Ind Elect Grp, Barcelona 08222, Spain

[4] Univ New S Wales, Sydney, NSW 2052, Australia

[5] Beijing Jiaotong Univ, Beijing 100044, Peoples R China

[6] Tecnalia Res & Innovat, Energy Unit, Derio 48160, Spain

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2016年 / 63卷 / 06期

关键词：

Interleaving; multilevel converters; multilevel waveforms; parallel legs; selective harmonic elimination pulsewidth modulation (SHE-PWM); voltage-source converters (VSCs); PARALLEL OPERATION; INVERTERS;

D O I：

10.1109/TIE.2016.2521729

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Interleaving of voltage-source converter (VSC) legs enables higher output currents per phase, effectively increasing the power rating without increasing semiconductor ratings. However, the interleaved operation results in circulating currents between each phase converter legs as well as a zero-sequence circulating current (ZSCC), which become quite prominent when the converters operate with low switching frequencies. This paper demonstrates the interleaved operation of three-level converters under selective harmonic elimination pulsewidth modulation (SHE-PWM). A controller for the circulating current within the legs of each phase is also proposed. The controller is used in combination with optimally selected SHE-PWM patterns to generate the maximum number of voltage levels and minimize the peak value of the circulating current. Simulation and experimental results show the interleaved operation and the effect of SHE-PWM pattern selection in the overall system.

引用

页码：3323 / 3332

页数：10

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