Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1988-06-16
1990-02-13
Ro, Bentsu
Electricity: motive power systems
Switched reluctance motor commutation control
318138, H02P 602
Patent
active
049009931
ABSTRACT:
A phase difference between a counter-electromotive voltage induced in a driving coil and a voltage which is applied to the driving coil is detected by comparison of a terminal voltage of the driving coil and a reference voltage. A frequency of a voltage-control oscillator which controls switching of the voltage applied to the driving coil is varied by an output signal made by the comparison, and the phase difference is controlled to be reduced to zero.
REFERENCES:
patent: 4233548 (1980-11-01), Kirtley
patent: 4250435 (1981-02-01), Alley et al.
patent: 4295085 (1981-10-01), Lafuse
patent: 4595865 (1986-06-01), Jahns
patent: 4603283 (1986-07-01), Oltendorf
patent: 4673849 (1987-06-01), Sears et al.
patent: 4712050 (1987-12-01), Nagasawa et al.
Kimura Yoshitsugu
Nakano Hiromitsu
Yasohara Masahiro
Matsushita Electric - Industrial Co., Ltd.
Ro Bentsu
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