Impact of Reduced Common Mode Voltage PWM and Common mode inductor on EMI Characteristics of an Inverter-Driven Motor

被引:0
|
作者
Liu, Fang [1 ]
Lu, Ting [1 ]
Zhao, Zhengming [1 ]
Wei, Shusheng [1 ]
Li, Kai [1 ]
Yin, Lu [1 ]
Yuan, Liqiang [1 ]
机构
[1] Tsinghua Univ, Dept Elect Engn, State Key Lab Control & Simulat Power Syst & Gene, Beijing 100084, Peoples R China
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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
Pulse width modulation (PWM) inverters have been widely used in the variable-speed motor drive. However, the common mode voltage (CMV) and common mode current (CMC) produced by PWM inverters cause EMI to electronic equipments around. This paper experimentally investigates the CMV/CMC characteristics of important reduced CMV PWM methods, such as active zero state PWM1 (AZSPWM1), near state PWM (NSPWM) and three-dimension AZSPWM (3D-AZSPWM), for a two-level three-phase voltage source inverter, with and without a common mode inductance (CMI). Experimental results are helpful to the research of the EMI characteristics of the inverter-driven motor and suggest that a combined algorithm using 3D-AZSPWM and NSPWM with a CMI inserted makes a promising way to improve its EMI characteristics.
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页数:4
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