Armature winding for a static converter-fed electrical induction machine
US4751448A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 1987 |
| Grant date | Jun 14, 1988 |
| Priority date | — |
| Expiry date | Mar 9, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An armature winding is provided for an induction machine with an odd phase number m.gtoreq.5 which has m connection points for its winding sections to a converter. Connections to the converter are made that first and second (m-1)/2 phase windings have current flow in opposite directions and the remaining phase winding advances outwards in electrical angle steps of (.pi./m). A higher pulse number and thus good concentricity characteristics with high machine efficiency can be attained with star or polygonal circuits of the phase windings, and an improved optimal adjustment of the load-bearing capacity of the most varying electronic components can be attained by the polygonal circuitry having multiple rings of the phase windings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.