返回
Optimal pulse-width modulation for three-level inverters
DOI:10.1109/TPEL.2004.839831.png)
摘要
En 中文
The three-level neutral-point-clamped voltage source inverter is widely used in high power, medium voltage applications. This paper studies continuous and discontinuous pulse-width modulation for this inverter. Detailed analysis of discontinuous modulation shows that the average switching frequency is not directly proportional to the carrier or sampling frequency, since additional,switching transitions occur between different regions of discontinuity. At typical switching frequencies for high power applications (up to 2 kHz) these additional transitions contribute significantly to the inverter's total losses, so that a proper comparison of the harmonic performance can only be carried out under constant loss conditions with varying carrier frequency. This comparison is performed for a typical industrial medium voltage inverter. The paper then considers the major issues of neutral-point voltage balancing and loss distribution within the inverter, for the identified optimal modulation schemes.
Keyword:
discontinuous modulation
pulse-width modulation (PWM)
three-level inverter
AI总结
对已上传原文的论文进行重点信息的提取,主要内容包括:简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
6.5
论文数:
1.7W
被引数:
8.3W
机构
暂无机构信息
引用论文
Longitudinal changes in physical activity, sedentary behavior and body mass index in adolescence: Migrations towards different weight cluster
PLOS ONE
IF0

