Title :
An improved quasi-square-wave DC-link converter
Author :
Cavalcanti, Marcelo C. ; Da Silva, Edison R. ; Jacobina, Cursino B.
Author_Institution :
Dept. of Electr. Eng., Fed. Univ. of Campina Grande, Brazil
Abstract :
This paper proposes a quasi-square-wave DC link (QSWDCL) converter, which improves the performance of an existing topology. The proposed circuit provides zero-DC-link voltage notches, during which the inverter switching is effected, and imposes a minimum DC bus voltage stress to the PWM inverter. Simple design conditions are offered. Simulated and experimental results demonstrate the validity of the proposed topologies.
Keywords :
PWM invertors; switching circuits; 20 A; 200 V; 300 A; 600 V; PWM inverter; inverter switching; minimum DC bus voltage stress; performance improvement; quasi-square-wave DC-link converter; zero-DC-link voltage notches; Bridge circuits; Capacitors; Diodes; Equivalent circuits; Inverters; Resonance; Space vector pulse width modulation; Switches; Switching circuits; Voltage;
Conference_Titel :
Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the
Conference_Location :
Pittsburgh, PA, USA
Print_ISBN :
0-7803-7420-7
DOI :
10.1109/IAS.2002.1042770
