Patent · US Active

Method and arrangement to determine the cell capacitor voltage of a cell of a multi-cell power converter

US8188726B2 · kind B2 · utility

2Cited by

3References

16Claims

0Family size

Assignee

ABB TECHNOLOGY AG · CH

Inventors

Filippo Chimento · Hagfors, SE
Frans Dijkhuizen · Västerås, SE
Jean-Philippe Hasler · Västerås, SE
Falah Hosini · Västerås, SE
Tomas Jonsson · Hagfors, SE
Peter Lundberg · Perth, AU
Mauro Monge · Hagfors, SE
Staffan Norrga · Stockholm, SE
Jan R. Svensson · Landskrona, SE
Fredrik Tinglow · Arboga, SE

Key dates

Filing date	Nov 7, 2011
Grant date	May 29, 2012
Priority date	—
Expiry date	Nov 7, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH02M7/4835
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An arrangement to determine a cell capacitor voltage value of a cell of a multi-cell power converter includes the cell and a control unit. The cell itself includes four power electronic valves interconnected as a full-bridge converter having a first and a second phase leg, where each phase leg includes a series-connection of two of the four power electronic valves and where the connection point between the two power electronic valves of each phase leg is externally connectable, a cell capacitor being connected in parallel to the first and the second phase legs, and four gate units, each being connected to a corresponding one of the power electronic valves as well as to the control unit.

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