Patent · US Active

Sensorless electric machine

US9871418B2 · kind B2 · utility

2Cited by
57References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 18, 2015
Grant dateJan 16, 2018
Priority date
Expiry dateDec 18, 2035

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02K1/276
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A rotor component that comprises a rotor circuit configured for use with either an interior permanent magnet (IPM) machine or a synchronous reluctance machine (SRM) that includes a pole circuit made of a conductive, non-magnetic material and has a midpoint that substantially aligns with a d-axis of the IPM or SRM. An electric machine with a similar rotor component therein or having a loop or ring of a conductive, non-magnetic material that is substantially concentric about a d-axis of the electric machine.

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