A New Method to Mitigate the Adverse Effects of PWM Inverter

Author

Sun, Yaxiu ; Esmaeli, Abdolreza ; Sun, Li

Author_Institution

Sch. of Electr. Eng. & Autom., Harbin Inst. of Technol.

fYear

2006

fDate

24-26 May 2006

Firstpage

1

Lastpage

4

Abstract

A new method to mitigate the adverse effects of PWM inverter is discussed in this paper. A PWM inverter fed ac motor drive system capable of suppressing all the adverse effects of PWM inverter based on active cancellation method is developed. An active EMI filter proposed for this system is characterized by sophisticated connection of two small separate filters, which they can mitigate common mode voltages produced by PWM inverter and can suppress leakage current. As a result small active filter with ability of reducing of all the adverse effects is approached. Experimental results show the reduction characteristics of the shaft voltage, bearing current and leakage current in the whole system

Keywords

AC motor drives; PWM invertors; electromagnetic interference; interference suppression; power filters; PWM inverter; ac motor drive system; active EMI filter; active cancellation method; bearing current; leakage current suppression; shaft voltage; AC motors; Active filters; Electromagnetic interference; Induction motors; Leakage current; Passive filters; Pulse width modulation; Pulse width modulation inverters; Rectifiers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2006 1ST IEEE Conference on

Conference_Location

Singapore

Print_ISBN

0-7803-9513-1

Electronic_ISBN

0-7803-9514-X

Type

conf

DOI

10.1109/ICIEA.2006.257368

Filename

4025969