Title :
Low-cost, SCR-based premium power quality variable speed drive technology
Author :
Hammell, Darren ; Holveck, Mark ; Limpaecher, Erik
Author_Institution :
Princeton Power Syst. Inc., NJ, USA
Abstract :
A unique variable speed drive topology is presented. This topology has been shown to use silicon controlled rectifier switches without commutation circuitry at a frequency of 2 kHz to produce input and output waveforms with current total harmonic distortion below 3%. Furthermore, the voltage rise on the output is 1.2 v//spl mu/s without inductive filtering, which preserves motor insulation and bearing life. The topology is low cost due to its minimal switching complexity.
Keywords :
cost reduction; filtering theory; harmonic distortion; induction motor drives; motor protection; power supply quality; thyristor motor drives; variable speed drives; 2 kHz; 208 V; 25 kW; 3-phase induction motors; 30 hp; SCR; commutation circuit; harmonic distortion; inductive filtering; motor insulation; power quality; silicon controlled rectifier; speed drive topology; switching complex; Circuit topology; Commutation; Frequency; Power quality; Switches; Switching circuits; Thyristors; Total harmonic distortion; Variable speed drives; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2003. APEC '03. Eighteenth Annual IEEE
Conference_Location :
Miami Beach, FL, USA
Print_ISBN :
0-7803-7768-0
DOI :
10.1109/APEC.2003.1179316
