Invention Grant
- Patent Title: AC machine windings
-
Application No.: US16438237Application Date: 2019-06-11
-
Publication No.: US11239717B2Publication Date: 2022-02-01
- Inventor: Md Sariful Islam , Md Ashfanoor Kabir , Iqbal Husain
- Applicant: North Carolina State University
- Applicant Address: US NC Raleigh
- Assignee: North Carolina State University
- Current Assignee: North Carolina State University
- Current Assignee Address: US NC Raleigh
- Agency: Thomas Horstemeyer, LLP
- Main IPC: H02K3/12
- IPC: H02K3/12 ; H02K3/48 ; H02K1/16

Abstract:
Various examples related to shifted fractional pitch wye-delta multilayer windings and their use in AC machines. In one example, a winding includes a first wye-delta winding with first wye and delta windings for each phase and a second wye-delta winding with second wye and delta windings for each phase. The first and second wye windings for each phase are connected in series and the first and second delta windings are connected in series, and formed wye and delta windings are connected in a wye-delta configuration thereby providing an electrical phase shift between the two windings. The windings are interdigitated to provide a physical shift between the first and second wye windings and the first and second delta windings. Such windings can be used in, e.g., permanent magnet synchronous machines, synchronous machines, reluctance machines, and induction machines.
Public/Granted literature
- US2212559A Portable dish washer and drier Public/Granted day:1940-08-27
Information query