Method for controlling an inverter
US6313599A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2001 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Jan 17, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/53876
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for controlling an inverter which comprises the switching components to be controlled, the method comprising the steps of determining a current vector (i.sub.olo) for the inverter output; determining a flux vector (.psi.) for the inverter load; determining an angular speed (.omega.) for the inverter load; determining a resistance (R) for the inverter load. The method further comprises the steps of determining a voltage vector (b) as a sum of the product of the inverter load resistance (R) and the output current vector (i.sub.olo) and a voltage proportional to the electromotive force of the load; forming a direction vector (S) on the basis of a current vector (i.sub.ref) for the inverter reference value and the inverter output current vector (i.sub.olo); determining a space coordinate system .mu..upsilon. associated with the voltage vector (b) and having a real axis .mu. which is co-directional with the voltage vector (b); determining the direction vector (S) in the .mu..nu. coordinates system; and forming inverter switch commands on the basis of a component (S.sub..mu.) co-directional with the .mu. axis of the direction vector (S) and a component (S.sub..upsilon.) co-direc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.