IGBT高压变频调速电源
IGBT高压变频调速电源
Power Supply(PS) of IGBT High- voltage Frequency Conversion Governor
南京东南大学自控系冷增祥(南京210096)
摘要:提出用于高压电动机变频调速电源需考虑的串联、谐波和效率等几个问题;介绍
由全控型电力电子器件IGBT按多重化PWM控制技术构成、目前已商品化的高压变频器,可
用于中、高压交流电动机的直接变频调速。
Abstract:This paper pointed out a few problems of series,harmonic and
efficiency etc.,to be needed considering,it introduced constructed by all-
controlling power electronics device IGBT by means of multi- PWM control
technology,and this kind of convertor can be the used for direct frequency
conversion governor of midolle/high- voltage A.C mo tors.
关键词:交流调速电源高压变频IGBT多重化
PWM Keywords:A.C.governor's PS, High- voltage frequency conversion,
IGBT,Multi- PWM
1引言
众所周知,电力传动中,交流电动机较直流电动机结构简单、制造容易、价格便宜、维
修方便,因而被大量使用。然而在起动和调速性能方面,交流机较直流机麻烦或困难。
……