Motor energized by a DC voltage

Details Motor energized by a DC voltage Motor energized by a DC voltage

1979-06-28

1981-05-26

Witkowski, Stanley J.

Electricity: motive power systems

Switched reluctance motor commutation control

318138, 318439, H02P 602

Patent

active

042700752

ABSTRACT:
The invention relates to a motor of the type energizable by a DC voltage and having at least two parallel stator winding branches with each branch having a stator winding in series with a controllable switching element. A demagnetization branch in parallel with each stator winding branch has an oppositely poled demagnetization winding inductively coupled to the associated stator winding and a series connected diode poled oppositely of the associated switching element. When one stator winding is switched off the voltage induced in the inductively coupled demagnetization winding produces a current which flows through the associated diode and the next simultaneously switched on stator winding. In this way the magnetic energy of the switched off stator winding is rapidly reduced and is utilized to supplement the magnetic field of the simultaneously switched on stator winding.

REFERENCES:
patent: 3684934 (1972-08-01), Loyzim
patent: 3688169 (1972-08-01), Yamaya et al.
patent: 3931553 (1976-01-01), Stich et al.
patent: 4025859 (1977-05-01), Smith
patent: 4081736 (1978-03-01), Leenhouts et al.

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