초록 ▼

A switched reluctance machine capable of improved operation under fault conditions. The machine includes a controller which responds to a fault in a phase winding by cutting off current to the phase windings of all stator poles that are aligned with a rotor pole at the time the stator pole having th

A switched reluctance machine capable of improved operation under fault conditions. The machine includes a controller which responds to a fault in a phase winding by cutting off current to the phase windings of all stator poles that are aligned with a rotor pole at the time the stator pole having the phase winding with the fault therein aligned with a rotor pole. Consequently, there is no magnetic flux in the stator or rotor at such time. Therefore, no current is induced in the faulted phase winding. This avoids generation of a counter torque, as well as avoiding potential catastrophic failure of the SR machine.

대표청구항 ▼

[ We claim:] [1.] In a switched reluctance machine having a rotor with r poles and a stator with s poles, where r is an integer and s is an integer larger than r, each stator pole having a phase winding wound thereon, means connecting the phase windings of radially opposite ones of said stator poles

[ We claim:] [1.] In a switched reluctance machine having a rotor with r poles and a stator with s poles, where r is an integer and s is an integer larger than r, each stator pole having a phase winding wound thereon, means connecting the phase windings of radially opposite ones of said stator poles in circuit, means for sensing the angular position of said rotor, and means responsive to the sensed angular position of said rotor for controlling current through said phase windings, the improvement comprising:control means responsive to a fault in one of said phase windings for preventing current flow through the phase windings of all stator poles that are aligned with a rotor pole at the time the stator pole having the phase winding with the fault therein is aligned with a rotor pole.