Title :
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
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;
Conference_Titel :
Electric Machines and Drives, 1999. International Conference IEMD '99
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5293-9
DOI :
10.1109/IEMDC.1999.769058
