文章基本信息

标题：A Novel Low Common-Mode Voltage Modulation Strategy for ANPC-5L Inverter
本地全文：下载
作者：Fusheng Wang ; Sai Weng ; Lizhong Ye 等
期刊名称：E3S Web of Conferences
印刷版ISSN：2267-1242
电子版ISSN：2267-1242
出版年度：2020
卷号：185
页码：1-7
DOI：10.1051/e3sconf/202018501015
出版社：EDP Sciences
摘要：In order to suppress the leakage current of the active neutral point clamed five-level (ANPC-5L)inverter, this paper proposes a novel low common-mode voltage (CMV) modulation strategy based on thespace vector modulation thought. Only the 55 voltage vectors with low CMV amplitude instead of all 125voltage vectors are utilized. The CMV amplitude is suppressed to one -twelfth of the DC bus voltage (Vac).In the simplified five-level space vector diagram, "obtuse triangle" synthesis principle is used to control theCMV changes twice in each carrier cycle, and get lower output current total harmonic distortion (THD).According to the vector thought, a carrier implementation method based on zero sequence voltage injectionand carrier splitting is proposed. This method simplifies the calculation and is easy to implement.Simulation results prove the correctness and feasibility of this low CMV modulation strategy.
其他摘要：In order to suppress the leakage current of the active neutral point clamed five-level (ANPC-5L) inverter, this paper proposes a novel low common-mode voltage (CMV) modulation strategy based on the space vector modulation thought. Only the 55 voltage vectors with low CMV amplitude instead of all 125 voltage vectors are utilized. The CMV amplitude is suppressed to one-twelfth of the DC bus voltage (Vdc). In the simplified five-level space vector diagram, “obtuse triangle” synthesis principle is used to control the CMV changes twice in each carrier cycle, and get lower output current total harmonic distortion (THD). According to the vector thought, a carrier implementation method based on zero sequence voltage injection and carrier splitting is proposed. This method simplifies the calculation and is easy to implement.Simulation results prove the correctness and feasibility of this low CMV modulation strategy.