Title :
Use of variable frequency drives for extruder application
Author :
Hanna, Robert ; Randall, Scott
Author_Institution :
RPM Eng., Mississauga, Ont., Canada
Abstract :
This paper describes a case study of replacing an eddy current clutch (ECC) with a modern medium voltage variable frequency drive (VFD) for 2250 HP extruder application. It covers key issues, justification, factory and field measurements of torque-speed profile through 0.5-60 Hz as well as power quality analysis. The paper reviews manufacturers´ capability to build medium voltage VFDs that produce very high and stable torque at very low speed
Keywords :
PWM invertors; extrusion; induction motor drives; power supply quality; variable speed drives; 0.5 to 60 Hz; 2250 hp; CSI-PWM drives; NPC PWM VSI drives; current source inverter; eddy current clutch replacement; extruder application; high torque; induction motor drives; medium voltage variable frequency drive; multi-level voltage source PWM drives; neutral point clamped VSI drive; power quality analysis; stable torque; torque-speed profile; variable frequency drives; voltage source inverter; Chemical engineering; Costs; Eddy currents; Frequency; Induction motors; Medium voltage; Production facilities; Shafts; Torque measurement; Velocity control;
Conference_Titel :
Petroleum and Chemical Industry Conference, 1999. Industry Applications Society 46th Annual
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-5601-2
DOI :
10.1109/PCICON.1999.806442
