Method and device for actuating an inverter
US9537426B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2013 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | May 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/53876
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for actuating an inverter (10) by means of space vector pulse width modulation, in particular for actuating an electrical machine (14), wherein the inverter (10) has a plurality of controllable switches (S) and is configured to provide a multi-phase electrical voltage (U, V, W) in the form of a voltage space vector (V*), wherein the controllable switches (S) are actuated in such a manner that different duty cycles of the switches (S) are set and a plurality of successive different switching states (V0-V7) of the switches (S) are set up to provide the voltage space vector (V*), wherein the duty cycles of the switches (S) are extended during a pulse width modulation period (T) if a duty cycle of one of the switches (S) falls below a predefined threshold (44) during the pulse width modulation period (T).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.