Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR CONTROLLING A MATRIX CONVERTER
Document Type and Number:
WIPO Patent Application WO2002043235
Kind Code:
A3
Abstract:
The invention relates to a method for controlling a matrix converter (2) comprising nine bi-directional circuit-breakers (4) which are arranged in a 3x3 switch matrix (6). According to the invention, a commutation sequence is selected according to detected phase-to-phase input voltages and a predetermined limit value and compared with a calculated commutation sequence. If these two do not correspond, the circuit states of the calculated commutation sequence are transferred into the selected commutation sequence by re-sorting. In this way, it is possible to operate a matrix converter (2) without precise measurement of input voltages, with the risk of a commutation short circuit being reliably avoided.

Inventors:
SIMON OLAF (DE)
MAHLEIN JOCHEN (DE)
Application Number:
DE0104323W
Publication Date:
November 21, 2002
Filing Date:
November 16, 2001
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SIEMENS AKTIENGESELLSCHAFT
SIMON, OLAF
MAHLEIN, JOCHEN
International Classes:
H02M5/257; H02M5/27; (IPC1-7): H02M7/537; H02M5/27
Foreign References:
DE19504690C11996-03-21
GB2048588A1980-12-10
US5594636A1997-01-14
US4041368A1977-08-09
Download PDF: