Patent · US Active

Method and device for operating an electric motor

US10644620B2 · kind B2 · utility

0Cited by

1References

21Claims

0Family size

Assignee

Woehner GmbH & Co. KG Elektrotechnische Systeme · DE

Inventors

Philipp Steinberger · Coburg, DE
Daniel Steiner · Sonneberg, DE
Hubert Lenker · Sonneberg, DE

Key dates

Filing date	Nov 24, 2016
Grant date	May 5, 2020
Priority date	—
Expiry date	Dec 6, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH02P27/18
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Device for operating an electric motor, comprising a detection unit for detecting zero-crossings and phase angles of applied phase-shifted sinusoidal voltage phases of a multi-phase power supply network; and a switching unit for connecting half-waves of the applied sinusoidal voltage phases through by means of semiconductor switches in accordance with switching patterns applied to the semiconductor switches, said patterns being synchronised with the detected phase angles and zero-crossings, to generate phase-shifted quasi-sinusoidal voltage phases which are applied directly to the electric motor.

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