Adjustable speed drive neutral voltage shift and grounding issues in a DC distributed system

Author

Xing, Kun ; Lee, Fred C. ; Lai, J.S. ; Gurjit, Thandi ; Borojevic, Dusan

Author_Institution

Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

1

fYear

1997

fDate

5-9 Oct 1997

Firstpage

517

Abstract

This paper presents a system-level analysis of the voltage shift brought about by both the front-end and secondary converters. It is shown that the noise caused by the front-end converter is worse than that from the voltage source inverter itself because it will propagate along the DC bus and penetrate to downstream converters. This paper presents the results of analyses, simulations and experiments on this type of noise, which behaves as common-mode low frequency zero sequence and high-frequency dv/dt in a three-phase rectifier and inverter. Ways to alleviate the problem and achieve high performance DC distribution are discussed

Keywords

AC motor drives; earthing; interference (signal); invertors; rectifying circuits; variable speed drives; DC distributed system; adjustable speed drive; common-mode low frequency zero sequence; front-end converters; grounding; high-frequency dv/dt; neutral voltage shift; noise propagation; secondary converters; system-level analysis; three-phase inverter; three-phase rectifier; Analytical models; Frequency; Grounding; Inverters; Rectifiers; Semiconductor device noise; Support vector machines; Switching converters; Variable speed drives; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1997. Thirty-Second IAS Annual Meeting, IAS '97., Conference Record of the 1997 IEEE

Conference_Location

New Orleans, LA

ISSN

0197-2618

Print_ISBN

0-7803-4067-1

Type

conf

DOI

10.1109/IAS.1997.643071

Filename

643071