Title:
A power converter and an electric power steering device using this
Document Type and Number:
Japanese Patent JP5920300
Kind Code:
B2
Abstract:
A power conversion apparatus includes: an inverter unit having high and low potential-side switching elements corresponding to each phase of a winding of a rotating electrical machine; a current detecting unit; and a control unit controlling the switching elements based on a PWM reference signal and a duty instruction value. The control unit includes: a phase current computing device; and a voltage instruction value computing device. The control unit computes an active voltage vector interval in first and second half periods of one or multiple cycles of the PWM reference signal to be a predetermined period or longer, and computes first and second half duty instruction values to set first and second voltage vector intervals equal to or longer than minimum time to be in the first or second half period.
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Inventors:
Takashi Suzuki
Application Number:
JP2013193120A
Publication Date:
May 18, 2016
Filing Date:
September 18, 2013
Export Citation:
Assignee:
株式会社デンソー
International Classes:
H02M7/48; B62D5/04; B62D6/00; B62D119/00
Domestic Patent References:
| JP2001327173A | ||||
| JP3610897B2 | ||||
| JP5176551A | ||||
| JP2013038950A | ||||
| JP2010213407A | ||||
| JP2008533955A | ||||
| JP2011061950A |
Foreign References:
| US20110292700 |
Attorney, Agent or Firm:
Masaki Hattori
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