Method and device for controlling an inverter
US9515572B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2013 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Apr 22, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2205/01
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for controlling an inverter (10) using space-vector pulse width modulation, in particular to control an electric machine (14), the inverter (10) being equipped with a plurality of controllable switches (S) and being designed to provide a polyphase electric current (IU, IV, IW), in particular to supply polyphase electric current (IU, IV, IW) to the electric machine (14). In said method, a desired current space vector (I1*) having a desired phase angle (alpha1) and a desired amplitude (I1) is predefined, and the inverter (10) is controlled in such a way that a plurality of different successive switching states (V0-V7) is established for the switches (S) in order to provide the electric current (IU, IV, IW) in the form of a current space vector (I*), the inverter (10) being controlled in such a way that the current space vector (I2*) is provided at a phase angle (alpha2) which differs from the desired phase angle (alpha1) in order to load the switches (S) according to a desired load value (m) for the switches (S).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.