Dynamic estimation of supply current for electric motor drive
US10833620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2018 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Oct 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
According to one or more embodiments of the technical solutions described herein, an example method includes determining an input voltage (Vinv) of an inverter in a power circuit. The method further includes measuring an input current (Ii) of the inverter. The method further includes estimating a power supply current from a power supply of the power circuit based on the input voltage and the input current using a state observer and a plant model of the power circuit, the power supply current estimated at a non-steady state. The method further includes performing an active power management of a motor that receives electric power via the inverter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.