Year: 2025
Type: article
Abstract: The inherent problem of neutral-point potential imbalance in three-level neutral-point-clamped (3L-NPC) converters increases the risk of overvoltage in switching devices, causes increased output harmonic content, and seriously affects the performance and safe operation of the converters. To achieve neutral-point voltage balance control, this article proposes a neutral-point voltage balance control method based on zero-sequence component injection. The proposed method has the advantage of low computational complexity and can achieve balance control of neutral-point potential under various operation conditions. Finally, the experimental results validated the correctness and effectiveness of the presented method.
Source: Frontiers in Energy Research
Author: Jun Wang
Institution: Hunan International Economics University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,077
OpenAlex ID: W4416718672