Patent · US Active

Method for precharging a network section

US11942811B2 · kind B2 · utility

0Cited by

0References

15Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Karsten Handt · Starnberg, DE
Hubert Schierling · Erlangen, DE

Key dates

Filing date	Jun 3, 2019
Grant date	Mar 26, 2024
Priority date	—
Expiry date	Mar 14, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH02J1/06
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method is for precharging a second network section with electrical energy from a first network section of a DC network. In an initial state, an initial voltage prevailing in the second network section is lower than a DC voltage prevailing in the first network section. At a first point in time, the two network sections are connected via a resistor current path having a precharging resistor. At a subsequent second point in time, as soon as the voltage in the second network section is between the initial voltage and the DC voltage, the two network sections are connected via a semiconductor switch which is situated parallel to the resistor current path and is operated in a clocked mode or in a linear mode as a controllable resistor.

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