Title :
High-speed, variable-speed drive system in megawatt power range
Author :
Odegard, Bjorn ; Stulz, Christian A. ; Steimer, Peter K.
Author_Institution :
ABB Ind. AG, Turgi, Switzerland
Abstract :
In this article we present an industrial application of a high-speed, high-power, variable-speed drive system with a rated power of 2300 kW at 15600 RPM. The drive is based upon economical and reliable components such as thyristor-controlled current source inverters and the rugged and maintenance-free squirrel cage induction machine. We could take advantage of many synergies with the standard load commutated drive technique with synchronous machines. The installation of a capacitive filter in parallel with the induction machine enables load commutation of the machine side converter and in addition yields sinusoidal machine voltages and currents in a limited upper speed range. Thus optimal overall efficiency of converter and induction machine is obtained
Keywords :
DC-AC power convertors; induction motor drives; invertors; squirrel cage motors; thyristor convertors; variable speed drives; 2300 kW; capacitive filter; high-speed drive system; maintenance-free; optimal overall efficiency; sinusoidal machine currents; sinusoidal machine voltages; squirrel cage induction machine; thyristor-controlled current source inverters; variable-speed drive system; Commutation; Filters; Induction machines; Inverters; Maintenance; Power generation economics; Power system economics; Power system reliability; Synchronous machines; Voltage;
Journal_Title :
Industry Applications Magazine, IEEE
DOI :
10.1109/2943.491385
