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Patent Searching and Data


Title:
CONTROLLER, MOTOR CONTROL SYSTEM HAVING THE CONTROLLER, AND ELECTRIC POWER STEERING SYSTEM HAVING THE MOTOR CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/111728
Kind Code:
A1
Abstract:
The purpose of the invention is to compensate for the influence of parameter fluctuation which is problematic when using feedforward control for improving the operation noise, and to suppress the fluctuation of motor output. A controller 100 is used in a motor control system 1000 that drives a motor M by using a drive circuit 200 and an inverter 300. The controller 100 includes a current control block 120a and a disturbance observer 134a. The controller 100 performs feedforward control based on a current value by using the disturbance observer, compensates for disturbance parameters of the current control block by adaptive control according to the output value of the disturbance observer, and uses the output of the current control block to generate a PWM signal to be outputted to the drive circuit.

Inventors:
ENDO SHUJI (JP)
NAKANE HAJIME (JP)
YOKOZUKA TAKUYA (JP)
MORISHIMA MIKIO (JP)
TATEWAKI TOKUJI (JP)
Application Number:
PCT/JP2018/043208
Publication Date:
June 13, 2019
Filing Date:
November 22, 2018
Export Citation:
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Assignee:
NIDEC CORP (JP)
NIDEC ELESYS CORP (JP)
International Classes:
H02P23/12; G05B11/36; H02P27/08
Foreign References:
JP2010252492A2010-11-04
JP2003284398A2003-10-03
JP2013215064A2013-10-17
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