Patent · US Active

Multilevel converter for power factor correction and associated operating method

US9853537B2 · kind B2 · utility

2Cited by

8References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Sebastian Mueller · Ludwigshafen, DE
MARTIN PIESCHEL · Nuremberg, DE
Thilo Weigel · Nuremberg, DE

Key dates

Filing date	Jul 8, 2013
Grant date	Dec 26, 2017
Priority date	—
Expiry date	Sep 9, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P80/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method operates a multilevel converter for power factor correction of a polyphase mains voltage. Each phase of the polyphase main has an associated phase module with a plurality of sub modules which are connected in series and each have an electrical energy store. Each sub module can be connected to the phase of the mains voltage or disconnected there from by an electronic switch. A circuit breaker is provided for disconnecting the converter from the mains voltage. The converter has a regulation system by which the voltages of the phase modules are balanced when the circuit breaker is open.

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