초록 ▼

A rotating flux vector is set up in a motor or generator's rotor by simultaneously energizing two phase windings while the rotor remains stationary, wherein each phase winding may be energized by the same or different excitation voltages. Respective tap voltages are then recorded at this first flux

A rotating flux vector is set up in a motor or generator's rotor by simultaneously energizing two phase windings while the rotor remains stationary, wherein each phase winding may be energized by the same or different excitation voltages. Respective tap voltages are then recorded at this first flux position. Thereafter, the two phase windings are simultaneously energized by another voltage excitation, wherein each phase is energized at the same or different voltages, causing a new flux position to occur. Once again, respective tap voltages are recorded. This process may be repeated for various rotations of the motor's flux. The measured tap voltages are evaluated to determine the location of the rotor, without actually moving it. The present invention is applicable to SR and non-SR machines having a plurality of phases and pole configurations.

대표청구항 ▼

[ Having thus described the invention, it is now claimed:] [1.]1. A method for detecting the position of a rotor relative to the position of a stator, in a salient pole machine, comprising:simultaneously energizing a first and second phase winding with a respective first and second excitation voltag

[ Having thus described the invention, it is now claimed:] [1.]1. A method for detecting the position of a rotor relative to the position of a stator, in a salient pole machine, comprising:simultaneously energizing a first and second phase winding with a respective first and second excitation voltage, wherein each said phase winding includes a plurality of coil sets;measuring a first pair of tap voltages respectively associated with a coil set of the first winding and a coil set of the second winding;simultaneously energizing the first and second phase winding with a respective third and fourth excitation voltage;measuring a second pair of tap voltages respectively associated with a coil set of the first winding and a coil set of the second winding; anddetermining a rotor position based upon said first and second pair of tap voltages.