Inductance measuring device and method for measuring an inductance parameter of permanent motor
US9081065B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2012 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Jan 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure provides an inductance parameter measuring device of the permanent motor and the method thereof. The method includes: providing a d-axis given current signal and a q-axis given current signal; converting the d-axis given current signal and the q-axis given current signal to a three-phase command signal and outputting a motor control signal corresponding to the three-phase command signal, and obtaining a three-phase feedback signal, from which a d-axis feedback signal and a q-axis feedback signal is generated, based on the motor control signal; calculating a d-axis inductance and a q-axis inductance based on the first, second, third and fourth response signals when the permanent motor is in a stationary state, wherein the first, second, third and fourth response signals are respectively corresponded to the d-axis given current signal, the q-axis given current signal, the d-axis feedback signal and the q-axis feedback signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.