A Harmonic Voltage Injection Based DC-Link Imbalance Compensation Technique for Single-Phase Three-Level Neutral-Point-Clamped (NPC) Inverters

A Harmonic Voltage Injection Based DC-Link Imbalance Compensation Technique for Single-Phase Three-Level Neutral-Point-Clamped (NPC) Inverters

In three-level neutral-point-clamped (NPC) inverters, the voltage imbalance problem between the upper and lower dc-link capacitors is one of the major concerns. This paper proposed a dc-link capacitor voltage balancing method where a common offset voltage was injected. The offset voltage consists of...

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Bibliographic Details
Main Authors: Kyoung-Pil Kang, Younghoon Cho, Myung-Hyo Ryu, Ju-Won Baek
Format: Article
Language:English
Published: MDPI AG 2018-07-01
Series:Energies
Subjects:
neutral-point-clamped (NPC) inverter
dc-link capacitor voltage balance
offset voltage injection
harmonic component
Online Access:http://www.mdpi.com/1996-1073/11/7/1886

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