Effects of long motor cables and short switching times on inverter fed induction motor drive systems

Author

Fengtai, Huang ; Lin, Luo Fang

Author_Institution

Ngee Ann Polytech., Singapore

Volume

2

fYear

1997

fDate

26-29 May 1997

Firstpage

670

Abstract

This paper examines the effect of long motor cables and short switching times on inverter-fed induction motor drives. In particular, a case where a single inverter drives multiple induction motors is investigated. Computer models based on cable transmission theory are used to simulate voltage reflections. Analyses are carried out to find the relationship between the inverter switching times, the length of cables and the motor terminal voltage. It is found that for certain applications, filters or chokes must be employed in order to keep the overvoltage level under a certain limit. Some simulation results are verified by experimental data

Keywords

DC-AC power convertors; electric machine analysis computing; induction motor drives; induction motor protection; invertors; machine testing; machine theory; overvoltage protection; power cables; switching circuits; transmission line theory; cable transmission theory; chokes; computer simulation; experimental data; filters; induction motor drive systems; inverters; long motor cables; motor terminal voltage; overvoltage regulation; short switching times; voltage reflections; Application software; Cables; Computational modeling; Computer simulation; Filters; Induction motor drives; Induction motors; Inverters; Reflection; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 1997. Proceedings., 1997 International Conference on

Print_ISBN

0-7803-3773-5

Type

conf

DOI

10.1109/PEDS.1997.627439

Filename

627439