Patent · US Active

Method for operating an electrical power rectifier, as well as an electrical power rectifier

US9214873B2 · kind B2 · utility

1Cited by

3References

14Claims

0Family size

Assignee

GE ENERGY POWER COVERSION GMBH · DE

Inventors

Roland Jakob · Inzlingen, DE
Piotr Sadowski · Berlin, DE
Thomas Bruckner · Günzburg, DE
Thomas Basler · Riemerling, DE

Key dates

Filing date	Dec 18, 2013
Grant date	Dec 15, 2015
Priority date	—
Expiry date	Jun 30, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH02M1/325
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for operating an electrical power rectifier. The power rectifier comprises at least two branches that are connected in parallel to each other, each of the branches comprising at least two power semiconductor elements that are connected in series. The collector-emitter voltage Vce(t) and/or the collector current Ic(t) of one of the power semiconductor elements is detected by means of the method. Furthermore, it is determined whether at least one of the following conditions is met: dVce(t)/dt<(dVce/dt)crit, and/or dIc(t)/dt<(dIc/dt)crit, and or Ic(t_ent)<Iccrit. If at least one of the aforementioned conditions has been met, the gate-emitter voltage of at least one of the power semiconductor elements is increased.

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