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Patent Searching and Data


Title:
MOTOR CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/141411
Kind Code:
A1
Abstract:
A motor control system equipped with: an inverter that outputs voltage to a motor on the basis of a voltage command; a current detection means that outputs a current detection value on the basis of the current flowing in the motor; a voltage command calculation means that outputs the voltage command on the basis of a higher-level command and the current detection value; a storage means that outputs a state quantity data set on the basis of the state quantity of the object driven by the motor; a degree-of-abnormality calculation formula updating means that, on the basis of the data set, outputs a degree-of-abnormality calculation formula for calculating a degree of abnormality for the object being driven; a degree-of-abnormality calculation means that outputs a degree of abnormality on the basis of the state quantity and the degree-of-abnormality calculation formula; and a voltage adjustment means that outputs an adjusted voltage for adjusting the voltage command on the basis of the degree of abnormality. Thus, it is possible to reduce adjustment work and increase versatility for a motor control system.

Inventors:
SUMITA SATOSHI (JP)
IWAJI YOSHITAKA (JP)
Application Number:
PCT/JP2016/054773
Publication Date:
August 24, 2017
Filing Date:
February 19, 2016
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
H02P27/06
Foreign References:
JP2006352988A2006-12-28
JPH05236795A1993-09-10
JPH09113038A1997-05-02
Attorney, Agent or Firm:
TODA Yuji (JP)
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