AC motor drive system
US9543882B2 · kind B2 · utility
1Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2013 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Oct 2, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M5/4585
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
When regenerative power from an AC motor via an inverter exceeds a predetermined power threshold, a charging/discharging control unit, which outputs a control signal for controlling the inverter on the basis of a DC bus voltage value and a charging/discharging current value, causes a power storage device to be charged such that the DC bus voltage value becomes a voltage threshold corresponding to the power threshold and causes a charging current at a start time of charging to the power storage device to start from a charging current value that is based on a DC bus voltage value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.