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Patent Searching and Data


Title:
METHOD FOR CONTROLLING A MATRIX CONVERTER
Document Type and Number:
WIPO Patent Application WO2002043234
Kind Code:
A3
Abstract:
The invention relates to a method for controlling a matrix converter (4) having nine bi-directional power circuit breakers (S11,...,S33) arranged in a 3 X 3 switch matrix, whereby switching states of a modulation period are each calculated with associated time intervals by using a space vector modulation method. According to the invention, these calculated switching states are each divided into switching states of an output phase (1, 2, 3) of the matrix converter (4) to each of which an associated time interval is assigned. In addition, the output phase-related switching states with associated time intervals are temporally combined to form a pulse train of a modulation period according to determined input voltages (U1, U2, U3). The output phase-related switchingstates are combined in such a manner that a sequential commutation always occurs to an adjacent input voltage (U1, U2, U3). This results in significantly improving the switching loss behavior of a matrix converter (4).

Inventors:
SCHIERLING HUBERT (DE)
SIMON OLAF (DE)
BRUCKMANN MANFRED (DE)
Application Number:
DE0104288W
Publication Date:
January 16, 2003
Filing Date:
November 15, 2001
Export Citation:
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Assignee:
SIEMENS AG (DE)
SCHIERLING HUBERT (DE)
SIMON OLAF (DE)
BRUCKMANN MANFRED (DE)
International Classes:
H02M5/257; H02M5/27; (IPC1-7): H02M7/537; H02M5/27
Foreign References:
US4833588A1989-05-23
US4648022A1987-03-03
US5594636A1997-01-14
US5949672A1999-09-07
US4468725A1984-08-28
Other References:
See also references of EP 1336241A2
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