Evaluation of inverter and cable losses in adjustable speed drive applications with long motor leads

Author

Matheson, Evelyn ; Von Jouanne, Annette ; Wallace, Alan

Author_Institution

Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA

fYear

1999

fDate

36281

Firstpage

159

Lastpage

161

Abstract

This paper presents an evaluation of inverter and cable losses in adjustable speed drive systems with long motor leads. Analyses and simulations were conducted to determine the motor/drive system losses as a function of cable length, switching frequency and loading conditions. Simulation and experimental results are presented for 5 kVA, 20 kVA and 30 kVA motor/drive systems at switching frequencies of 2 kHz, 6 kHz and 10 kHz and cable lengths of 10 ft and 300 ft. Results show the need for possible inverter derating with long cables at higher switching frequencies

Keywords

DC-AC power convertors; invertors; machine testing; machine theory; motor drives; power cables; switching circuits; variable speed drives; 10 feet; 10 kHz; 2 kHz; 20 kVA; 30 kVA; 300 feet; 5 kVA; 6 kHz; adjustable speed drive; cable length; inverter derating; inverter losses; loading conditions; long motor leads; power cable losses; switching frequencies; switching frequency; AC motors; Analytical models; Application software; Cables; Computational modeling; Insulated gate bipolar transistors; Pulse width modulation; Pulse width modulation inverters; Switching frequency; Variable speed drives;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Machines and Drives, 1999. International Conference IEMD '99

Conference_Location

Seattle, WA

Print_ISBN

0-7803-5293-9

Type

conf

DOI

10.1109/IEMDC.1999.769058

Filename

769058