Title :
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
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;
Conference_Titel :
Power Electronics and Drive Systems, 1997. Proceedings., 1997 International Conference on
Print_ISBN :
0-7803-3773-5
DOI :
10.1109/PEDS.1997.627439
