可调电感式高速电动机供电系统谐波抑制方法  

Harmonic Reduction Method for High Speed Motor Power Supply by Using Adjustable Inductor

作　　者：崔红[1] 王凤翔[2] 

机构地区：[1]辽宁省交通高等专科学校,沈阳110122 [2]沈阳工业大学,沈阳110870

出　　处：《微特电机》2016年第5期10-13,25,共5页Small & Special Electrical Machines

基　　金：国家自然科学基金重点项目(50437010)

摘　　要：采用六脉冲开关模式变频器可以减小功率器件的开关频率,这对于高频变频器的实现非常有利,但会使高速电动机供电系统的电流含有大量谐波。针对六脉冲开关模式变频器,提出了一种可调电感自适应滤波器的设计方法。可调电感自适应滤波器可以根据变频器输出频率的变化来适时调整电感值,主要针对5次、7次等阶次谐波加以滤除。通过对高速电动机供电系统的仿真和实验研究,结果表明采用所提出的可调电感自适应滤波器能够有效地减小变频器输出电流的谐波,为抑制高速电动机供电系统的谐波提供了依据。The six- step switch mode converter can reduce the switching frequency of power devices which is beneficial to realize high frequency converter. However,it can cause the current of the high- speed motor power supply rich in harmonics. A design method of adjustable inductor adapter filter was proposed for six- step switch mode converter. The adjustable inductor adapter filter can adjust inductance following current frequency of the converter which mainly eliminates the 5th and the 7th order harmonics etc. The simulation and experiment results on a high- speed motor power supply show that the proposed adjustable inductor adapter filter can reduce the harmonic components of converter output current effectively. It has provided a basis for harmonic suppression for high- speed motor power supply.

关 键 词：可调电感自适应滤波器 谐波抑制 高速电动机 六脉冲开关模式变频器 

分 类 号：TM355[电气工程—电机]