Current controller for cryogenically cooled motor
US10158313B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2016 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Oct 14, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Current amplitudes in a motor can be controlled by summing a first signal indicative of an output current of the motor with a current command signal, integrating the current command signal with respect to time, and applying a first controller gain to a second signal indicative of the output current of the motor to obtain a gain-controlled signal indicative of the output current of the motor. The method further includes applying a second controller gain to the current command signal to obtain a gain-controlled current command signal, summing the gain-controlled signal indicative of the output current of the motor with the gain-controlled current command signal to obtain a voltage signal, and inputting the voltage signal to the motor such that current amplitudes in the motor are controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.