| 摘要 |
An AC feeding apparatus which comprises a plurality of series solid state switch groups connected in parallel and with each series solid state switch group comprising N solid state switches connected in series. AC windings are provided for n(n>/=1) phase and m(m>/=2) independent groups of the windings are respectively connected to corresponding contacts of series connections of the solid state switches of the series switch groups. In the AC feeding apparatus, N solid state switches in each group and m groups of windings have the relation of 2m>/=N>/=(m+1) and at least two groups among m groups of the AC windings are excited with each phase difference of DELTA theta ( NOTEQUAL pi ) in the turn-on control of the solid state switches. The AC feeding apparatus can be adapted for use in a rotating field generator, a commutator motor or an AC motor apparatus. |
