Electricity: motive power systems – Synchronous motor systems – Hysteresis or reluctance motor systems
Patent
1994-02-28
1996-08-20
Ro, Bentsu
Electricity: motive power systems
Synchronous motor systems
Hysteresis or reluctance motor systems
318254, H02P 705, H02K 3702
Patent
active
055481965
ABSTRACT:
A switched reluctance motor driving circuit, by which energy can be used efficiently, the inverse-phase braking is possible, and the torque ripple can be controlled through the change of the current shape. The driving circuit comprises a first switching section for switching by receiving a predetermined electric signal, a magnetic flux generating section for generating the magnetic flux according to the operation of the first switching section, a diode array for transmitting the excitation current which flows through the magnetic flux generating means in one direction, a first energy storing section for storing the excitation current which passed through the diode array as electric energy, an energy conversion section for receiving the electric energy stored in the first energy storing section converting it to magnetic energy, a second switching section for controlling the action of the energy conversion section, a second energy storing section for storing the output of the energy conversion section as electric energy, a frequency conversion section for controlling the switching action of the second switching section, a control section for receiving a predetermined electric signal to generate a switching signal, a third switching section for switching according to the switching signal outputted from the control section, and an inverse-flow preventing section for preventing the energy of the first energy storing section from flowing inversely when the third switching section operates.
REFERENCES:
patent: 5075610 (1991-12-01), Harris
patent: 5115181 (1992-05-01), Sood
patent: 5424624 (1995-06-01), Senak, Jr.
"Modified C-Dump Converter for Variable-Reluctance Machines", by A. Hava, V. Blasko and T. Lipo, IEEE Transactions on Industry Applications. vol. 28, No. 5, Sep./Oct. 1992.
Goldstar Co. Ltd.
Ro Bentsu
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