Toshiba Mitsubishi-electric Industrial Systems Corporation

Kanazawa Institute of Technology

Tadashi Fukami

Mitsuhiro Kawamura

Toshihiro Tsuda

Kazuo Shima

Ryoichi Hanaoka

Shinzo Takata

Kazuki Noda

This rotating electric machine has a rotor, stator core, field windings for multiple poles, and armature windings for the multiple poles. The rotor is rotatably supported about a shaft. Convex-shaped multiple salient pole sections are formed on the outer circumference of the rotor while arranged in the circumferential direction. The stator core is provided along the outer circumference of the rotor with an air gap from the rotor. Convex-shaped multiple teeth are formed on the inner circumference of the stator core while arranged in the circumferential direction. The field windings for the multiple poles are wound around each of the multiple teeth while insulated from the field windings.

Rotating electric machine

This rotating electrical machine has a rotor, stator core, field windings for multiple poles, and armature windings for the multiple poles. The rotor is rotatably supported about a shaft. Convex-shaped multiple salient pole sections are formed on the outer circumference of the rotor while arranged in the circumferential direction. The stator core is provided along the outer circumference of the rotor with an air gap from the rotor. Convex-shaped multiple teeth are formed on the inner circumference of the stator core while arranged in the circumferential direction. The field windings for the multiple poles are wound around each of the multiple teeth while insulated from the field windings.

Rotating electrical machine

A field control device for a synchronous rotating machine includes: a target operating condition input unit; a first subtraction unit; a final-control-quantity control computation unit that accepts the final-control-quantity deviation and outputs a field-current correction demand value; an anticipatory computation unit that outputs a field-current anticipatory demand value based on the operating condition demand values input; an addition unit that adds the field-current correction demand value and the field-current anticipatory demand value; a second subtraction unit; and a field-current regulation device that adjusts the field current based on the field current deviation. The anticipatory computation unit includes: a dependence characteristic data storage unit that stores dependence characteristics predicted on the basis of the results of a no-load test; and a circuit calculation unit that performs a circuit calculation by using the dependence characteristics and outputs a field-current anticipatory demand value.

Field control device, method of field control, and synchronous rotating machine

To improve the configuration of electrodes disposed in the fluid channel of EHD pumps, and to reduce of the fluid channel of EHD pumps, as well as to reduce the cost of producing EHD pumps, and to increase the pumping pressure of EHD pumps. A hollow conical metal electrode open at the top end and the bottom end is used facing a rod-shaped metal electrode, and an electrically insulated fluid outflow channel is formed facing the hollow conical metal electrode, with the hollow conical metal electrode and rod-shaped metal electrode sharing a central axis, so that the two electrodes are disposed coaxially, and the rod-shaped metal electrode is disposed from the inner portion of the hollow conical metal electrode to the inner portion of the fluid outflow channel, and a portion of the rod-shaped metal electrode, positioned at the interface of at least the inner portion of the hollow conical metal electrode and the fluid outflow channel, serves as an exposed metal part, with this exposed metal part being caused to face the inner surface of the hollow conical metal electrode, and when an electric field is applied across the hollow conical metal electrode and the rod-shaped metal electrode, there is introduced a fluid wherein are formed dissociated ions, and high voltage direct current is applied across the hollow conical metal electrode and the rod-shaped metal electrode.

Growing community of inventors

Ishikawa, Japan

Tadashi Fukami