Patent · US Active

Electrical machines and methods to mitigate bearing currents

US12074482B2 · kind B2 · utility

0Cited by

6References

15Claims

0Family size

Assignee

General Electric Renovables Espana, S.L. · ES

Inventors

Lionel Durantay · Frouard, FR
Kum Kang Huh · Niskayuna, US
Christophe Grosselin · Champigneulles, FR
Henri Baerd · Palaiseau, FR
Ludger Luetkehues · Salzbergen, DE
Giesbert Krueger · Salzbergen, DE

Key dates

Filing date	Jan 5, 2023
Grant date	Aug 27, 2024
Priority date	—
Expiry date	Mar 2, 2043

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/72
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present disclosure relates to electrical machines (100, 200) configured to be fed by pulse width modulation from a power converter (170) and comprising a stator (110), a rotor (120), a rotor shaft (130) and one or more bearings (140, 141) arranged between the rotor (120) and the stator (110). The electrical machine (100, 200) further comprising an electrical shunt (160, 161) arranged between the rotor shaft (130) and the stator (110). The present disclosure also relates to methods (500) to mitigate electrical discharge machining bearing currents in electrical machines (100, 200).

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