Regenerative rectifier for a motor control drive
US9385638B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2014 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Oct 30, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E40/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system, and associated method, for controlling a motor drive coupled to an AC power source in a condition wherein the motor drive is generating a regenerative current. The system includes a plurality of electronic switching devices structured to be provided in anti-parallel connection with a plurality of rectifier diodes of the motor drive, and a controller structured and configured to receive a number of phase voltages from the AC power source, determine a grid angle for the AC power source using the number of phase voltages, and generate a number of control signals for controlling the electronic switching devices using the grid angle when the motor drive is generating the regenerative current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.