Title :
A current source PWM inverter with actively commutated SCRs
Author :
Bendre, Ashish ; Wallace, Ian ; Nord, Jonathan ; Venkataramanan, Giri
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
fDate :
7/1/2002 12:00:00 AM
Abstract :
Conventional SCR based current source inverters suffer from poor waveform quality due to six step switching. Pulse width modulated current source inverters typically require gate turn off devices with reverse voltage blocking capability which have limited their application. In this paper, a new pulse width modulated current source inverter topology using one gate turn off switch and six SCRs is presented. The converter uses active commutation to realize pulse width modulation in a conventional SCR based current source inverter. Modulation techniques for the proposed inverter, simulation and experimental results are described in the paper. This topology is suitable for high performance, high power applications
Keywords :
PWM invertors; commutation; power semiconductor switches; switching circuits; thyristor convertors; active commutation; actively commutated SCRs; current source PWM inverter; gate turn off devices; gate turn off switch; hybrid topology; poor waveform quality; reverse voltage blocking capability; six step switching; Commutation; Insulated gate bipolar transistors; Pulse inverters; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Reactive power; Thyristors; Topology; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2002.800999
