Patent · US Expired

Method for controlling a matrix converter

US6744650B2 · kind B2 · utility

21Cited by

5References

4Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Jochen Mahlein · Karlsruhe, DE
Olaf Simon · Weingarten, DE

Key dates

Filing date	May 22, 2003
Grant date	Jun 1, 2004
Priority date	—
Expiry date	May 22, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH02M5/271
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method is described for controlling a matrix converter which includes nine bi-directional circuit-breakers arranged in a 3×3 switch matrix. A commutation sequence is selected based on detected linked input voltages and a predetermined limit value and compared with a calculated commutation sequence. If these two do not agree, the switching states of the calculated commutation sequence are rearranged into the selected commutation sequence. In this way, it is possible to operate a matrix converter without requiring a precise measurement of the polarity of the input voltages, which eliminates the risk of a commutation short circuit.

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