Patent · US Active

Monitoring device for a reluctance machine and method for monitoring

US11201575B2 · kind B2 · utility

0Cited by

4References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Harald Sinner · Eckental, DE
Thilo Weigel · Nuremberg, DE

Key dates

Filing date	Sep 13, 2018
Grant date	Dec 14, 2021
Priority date	—
Expiry date	Sep 13, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH02P21/34
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A monitoring device for a reluctance machine includes a vector rotator for rotating a space phasor of the reluctance machine that depends on a voltage in a coordinate system that rotates with a negative fundamental frequency, a low-pass filter filtering the rotated space phasor and producing an output signal, and a signal evaluation device evaluating the output signal. A DC value of the produced output signal in the rotating coordinate system is monitored, and an error in operating the reluctance machine is identified when the DC value is above a predefined threshold value.

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