Novel switching method for single-phase NPC three-level inverter with neutral-point voltage control

被引：9

作者：

Leea, June-Seok ^{[1
]}

Lee, Seung-Joo ^{[2
]}

Lee, Kyo-Beum ^{[3
]}

机构：

[1] Korea Railrd Res Inst, Railrd Safety Res Div, 176 Cheoldo Bangmulgwan Ro, Uiwang, South Korea

[2] LG Electronics, Air Condit Cycle Team, Seoul, South Korea

[3] Ajou Univ, Dept Elect & Comp Engn, 206 World Cup Ro, Suwon, South Korea

来源：

INTERNATIONAL JOURNAL OF ELECTRONICS | 2018年 / 105卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

Single-phase; three-level inverter; neutral-point-clamped inverter; pulse-width modulation method; natural-point voltage control; CARRIER-BASED MODULATION;

D O I：

10.1080/00207217.2017.1357202

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：

This paper proposes a novel switching method with the neutral-point voltage control in a single-phase neutral-point-clamped three-level inverter (SP-NPCI) used in photovoltaic systems. A proposed novel switching method for the SP-NPCI improves the efficiency. The main concept is to fix the switching state of one leg. As a result, the switching loss decreases and the total efficiency is improved. In addition, it enables the maximum power-point-tracking operation to be performed by applying the proposed neutral-point voltage control algorithm. This control is implemented by modifying the reference signal. Simulation and experimental results provide verification of the performance of a novel switching method with the neutral-point voltage control.

引用

页码：303 / 323

页数：21

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