中国电机工程学报2008，Vol.28Issue(6)：79-85,7.
三电平高压大容量变频器中的短时间尺度脉冲现象
Short-timeseale Pulse Phenomena in Three-level High Voltage and High Power Inverter
摘要
Abstract
Various short-timescale transient processes exist in the High Power Adjustable Speed Drive(ASD)Systems,such as the switching transition of power semiconductors,commutating process and drive signal transmission,whose timescales ale generally from nanosecond to microsecond.These transient processes directly influence the reliability of powcr devices.Therefore it is necessary to investigate these short-timescale processes and penetrate their in-depth mechanisms instead of conventional steady.state research.Onthe high voltage and high power three-level ASD systems,the paper depicts the mathematical functions of various wave propagations.classifies the PWM pulses,summarizes their causes and effects and analyzes the effect of minimum pulse width on the dynamic and steady operations,as is difierent from the traditional literatures.Experiment validates the correctionoftheaboveanalysis.关键词
三电平/变频调速系统/短时间尺度/最小脉宽/空间矢量脉宽调制Key words
three-level/adjustable speed drive system/short-timescale process/minimum pulse width/space vector pulse width modulation分类
信息技术与安全科学引用本文复制引用
白华,赵争鸣,袁立强..三电平高压大容量变频器中的短时间尺度脉冲现象[J].中国电机工程学报,2008,28(6):79-85,7.基金项目
国家自然科学基金项目(50737002).Project Supported by National Natural Science Foundation ofChina(50737002). （50737002）
