Title :
New one-step commutation strategies in matrix converters
Author :
Ziegler, Marcus ; Hofmann, Wilfiied
Author_Institution :
Dept. of Electr. Machines & Drives, Chemnitz Univ. of Technol., Germany
Abstract :
Due to the nonexistence of natural free-wheeling paths the commutation in matrix converters is more complicated than in voltage source converters. For bidirectional switches where the current flow is controllable separately for both directions this paper proposes new commutation strategies. Based on the measurement of the current direction and the signs of the line to line input voltages commutation in one step is enabled. Compared to multistepped proposals this strategy presents a much smaller deadtime near the switching time.
Keywords :
AC-AC power convertors; commutation; electric current control; switching circuits; bidirectional switches; current direction measurement; current flow control; line input voltages commutation; matrix converters; natural free-wheeling paths; one-step commutation strategies; Chemical technology; Commutation; Filters; Insulated gate bipolar transistors; Matrix converters; Power semiconductor switches; Semiconductor diodes; Switched capacitor circuits; Switching circuits; Voltage;
Conference_Titel :
Power Electronics and Drive Systems, 2001. Proceedings., 2001 4th IEEE International Conference on
Print_ISBN :
0-7803-7233-6
DOI :
10.1109/PEDS.2001.975379
