Title:
MOTOR CONTROLLER
Document Type and Number:
WIPO Patent Application WO/2014/087640
Kind Code:
A1
Abstract:
A motor controller for controlling a switched reluctance motor comprises: an inverter to be connected to a switched reluctance motor; a torque and flux computation unit estimating or measuring torque and flux generated in said switched reluctance motor as calculated torque and calculated flux, on the basis of output from said inverter and a rotor angle of said switched reluctance motor; a switching pattern selector inputting a signal to said inverter for selecting one of switching patterns on the basis of a comparing result of reference torque and said calculated torque, a comparing result of reference flux and said calculated flux, and flux a phase angle; and a reference flux calculator which compares the highest phase flux out of three phase fluxes obtained by said torque and flux computation unit with flux limit and reduces said reference flux when the maximum phase flux is higher than said flux limit.
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Inventors:
AHMAD GHADERI (IR)
Application Number:
PCT/JP2013/007076
Publication Date:
June 12, 2014
Filing Date:
December 03, 2013
Export Citation:
Assignee:
NIDEC CORP (JP)
AHMAD GHADERI (IR)
AHMAD GHADERI (IR)
International Classes:
H02P25/08
Domestic Patent References:
| WO2011065406A1 | 2011-06-03 |
Foreign References:
| EP2190113A1 | 2010-05-26 | |||
| US20090026988A1 | 2009-01-29 | |||
| JPH0779588A | 1995-03-20 | |||
| US5703457A | 1997-12-30 |
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