Control system for multi-phase rotary machines
US9618543B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2014 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Oct 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and a control system for a multiphase-phase inverter system, the control system comprising an electric current detection circuit and a processor, wherein each phase of an electrical cycle is separated into a plurality of sections, inputs from the electric current detection circuit are received, each input indicating a measured phase current, and a phase current is calculated in each section, wherein the phase current calculation in at least one of the sections is determined from a changing ratio of the value of the phase current calculated from the measured values of the other phase currents in the multiphase system and the measured value of the phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.