Title :
Investigation of 9-switch dual-bridge matrix converter operating under low output power factor
Author :
Wei, Lixiang ; Lipo, Thomas A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
Abstract :
The dual-bridge matrix converter (DBMC) concept has been gaining recognition as a promising circuit alternative. Among all the DBMC topologies with reduced number of switches, the 9-switch topology shows the least number of switches and high quality waveforms. However, it has been proven that this converter can not operate safely when the output power factor is less than 0.866. This paper proposes a novel method to operate the 9-switch DBMC with low output power factor loads. In order to accomplish this task, one additional clamp circuit switch is introduced to exchange power when the output power factor is lower than 0.866. With this switch, the 9-switch DBMC can continue to provide high quality input/output waveforms when the output power factor, is not too low. Theoretical analysis, simulation and experimental results are presented in the paper to verify its effectiveness.
Keywords :
bridge circuits; matrix convertors; power factor; switching convertors; 230 V; 60 Hz; 9-switch dual-bridge matrix converter; clamp circuit switch; high quality input/output waveforms; high quality waveforms; low output power factor; low output power factor loads; output power factor; reduced switch number; Circuit simulation; Circuit topology; Clamps; Matrix converters; Power generation; Reactive power; Space vector pulse width modulation; Switches; Switching circuits; Voltage;
Conference_Titel :
Industry Applications Conference, 2003. 38th IAS Annual Meeting. Conference Record of the
Print_ISBN :
0-7803-7883-0
DOI :
10.1109/IAS.2003.1257500
