Title :
An AC-AC converter made of two semi direct frequency changers has no limits on the voltage gain
Author :
Roy, Gilles ; April, Georges-E ; Ribeiro, Enio R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Ecole Polytech. de Montreal, Que., Canada
Abstract :
Despite many attempts, the voltage gain of a direct frequency changer (DFC) remains limited to 0.87. However, the introduction of a new converter topology, inspired from the DFC and called semi direct frequency changer (SDFC), opens the way toward an AC-AC conversion without any limitation on the voltage gain. Two SDFCs, made of six unidirectional switches, can form a full 3 phase-3 phase converter; the SDFCs are operated under the scalar control algorithm. Functionality of the SDFC is analyzed in depth with the help of both HSPICE and EMTP programs. Laboratory test results from a 100 W prototype are also presented
Keywords :
AC-AC power convertors; SPICE; circuit analysis computing; frequency convertors; switching circuits; 100 W; 3 phase-3 phase converter; AC-AC converter; EMTP; HSPICE; scalar control algorithm; semi direct frequency changers; unidirectional switches; voltage gain; Digital-to-frequency converters; EMTP; Frequency conversion; Laboratories; Prototypes; Switches; Switching converters; Testing; Topology; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1996. APEC '96. Conference Proceedings 1996., Eleventh Annual
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-3044-7
DOI :
10.1109/APEC.1996.500548
