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Patent Searching and Data


Title:
SWITCHED RELUCTANCE MOTOR CONTROL SYSTEM AND SWITCHED RELUCTANCE MOTOR CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2018/074122
Kind Code:
A1
Abstract:
A switched reluctance (SR) motor control system 10 comprises an SR motor 1, a drive circuit 2 provided with field-effect transistors (FETs) 31–34 that adjust the energization timing of an excitation coil 4 of the SR motor 1, and an energization control unit 3 that controls the turning ON and OFF of the FETs 31–34. The SR motor 1 has a supply mode in which the excitation coil 4 is energized, and a regeneration mode in which electromotive force produced in the excitation coil 4 is recovered. The energization control unit 3 includes a synchronous rectification unit 21 that determines the termination of the regeneration mode on the basis of the electrical current value of the excitation coil 4 during the regeneration mode.

Inventors:
YAMADA YOSHIHISA (JP)
OGANE TAKAHIKO (JP)
OKADA HIROAKI (JP)
MOTOHASHI YUYA (JP)
SEMBA DAISUKE (JP)
Application Number:
PCT/JP2017/033455
Publication Date:
April 26, 2018
Filing Date:
September 15, 2017
Export Citation:
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Assignee:
MITSUBA CORP (JP)
International Classes:
H02P25/08; H02M7/48
Foreign References:
JP2016082791A2016-05-16
JP2015231323A2015-12-21
JP2015139350A2015-07-30
US20150381098A12015-12-31
CN103475112A2013-12-25
Other References:
See also references of EP 3531553A4
Attorney, Agent or Firm:
TAKANO Yasushi (JP)
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