Neutral Point Balancing for Three-Level Neutral Point Clamped Inverters under Light Load Conditions

被引：0

作者：

Lange, Alexander ^{[1
]}

Zimmermann, Marco ^{[1
]}

Piepenbreier, Bernhard ^{[1
]}

机构：

[1] Friedrich Alexander Univ FAU Erlangen Nurnberg, Elect Drives & Machines, Erlangen, Germany

来源：

2018 21ST INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) | 2018年

关键词：

Multilevel converters; Three-Level Neutral Point Clamped inverter; Neutral Point Balancing; Light Load Conditions; CONVERTERS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a robust fallback method for Neutral Point Balancing of Three-Level Neutral Point Clamped (3L-NPC) inverters under light load conditions is proposed. Measurement errors, non-ideal switching behaviour of semiconductors and minimum pulse width constrains prevent normal balancing methods from controlling the neutral point probably under light load conditions. To overcome these issues, an injected auxiliary current forces the voltage imbalance to zero. Measurement results prove the performance of the concept.

引用

页码：2382 / 2387

页数：6

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