Patent · US Active

Method of characterising a synchronous motor

US11757388B2 · kind B2 · utility

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0References

25Claims

0Family size

Assignees

TRW AUTOMOTIVE GMBH · DE
TRW Limited · US

Inventors

David Julian Moule · Birmingham, GB
Luis Ayala · Radolfzell, DE
Albert Schwinn · Radolfzell, DE

Key dates

Filing date	Nov 26, 2019
Grant date	Sep 12, 2023
Priority date	—
Expiry date	Apr 4, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG06F2111/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method suitable for characterizing a motor, for instance a permanent magnet synchronous motor, includes obtaining a plurality of winding flux linkage values or terminal voltages of the motor, each corresponding to a different combination of phase current magnitude and phase advance. The resultant flux-linkage values or terminal voltages are transformed into the rotor dq reference frame. The flux linkage model is fitted to the one or more dq-axis flux-linkage values or terminal voltages and their linked phase current magnitude and phase advance using a process of parametric optimisation.

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