Electricity: motive power systems – Synchronous motor systems – Hysteresis or reluctance motor systems
Patent
1995-12-08
1997-11-18
Ro, Bentsu
Electricity: motive power systems
Synchronous motor systems
Hysteresis or reluctance motor systems
318254, H02P 705
Patent
active
056891644
ABSTRACT:
An inductor-capacitor series resonant circuit is connected in series with a thyristor or other unidirectionally conductive semiconductor switch to form a resonant network, one resonant network for each stator phase winding of a switched reluctance motor to be connected in parallel to the stator phase winding. Zero current switching is achieved by selecting the resonant frequency such that the inductor and capacitor resonate in a time period during both turn-on and turn-off of the semiconductor switches. A C-dump circuit is included in one embodiment for increased power transfer efficiency.
REFERENCES:
patent: 5115181 (1992-05-01), Sood
patent: 5296785 (1994-03-01), Miller
patent: 5327069 (1994-07-01), Radun et al.
patent: 5446359 (1995-08-01), Horst
Hoft Richard Gibson
Uematsu Tatsuya
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
Ro Bentsu
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