Patent · US Expired

Method for controlling a matrix converter

US6760239B2 · kind B2 · utility

10Cited by

6References

1Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hubert Schierling · Erlangen, DE
Olaf Simon · Weingarten, DE
Manfred Bruckmann · Wendelstein, DE

Key dates

Filing date	May 15, 2003
Grant date	Jul 6, 2004
Priority date	—
Expiry date	May 15, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH02M7/53876
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for controlling a matrix converter with nine bidirectional power switches arranged in a 3×3 switch matrix is described. 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 of the matrix converter, with time intervals assigned to the switching states, wherein the time intervals and the output-phase-related switching states are placed into one-to-one correspondence. Depending on the measured input voltages, the output-phase-related switching states with associated time intervals are combined into a pulse train of a modulation period, so that a sequential commutation always occurs to a nearest input voltage. This significantly reduces the switching losses of a matrix converter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.