Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/065918
Kind Code:
A1
Abstract:
In this invention, a PWM control unit (4) generates a signal for controlling a switching element of individual legs on the basis of the size relationship for a triangular wave carrier of a common period at an initial phase that differs from leg-specific individual duty commands. At a sampling period different from the carrier period, a current estimation unit (2) acquires a detection value from a current detector (5), and estimates individual phase currents. A current control unit (3) adjusts the duty command so that each of the estimated phase currents matches the desired phase-current value.
Inventors:
KAWAI YU (JP)
Application Number:
PCT/JP2018/036251
Publication Date:
April 02, 2020
Filing Date:
September 28, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P27/04; H02P21/00
Foreign References:
| JP2007159345A | 2007-06-21 | |||
| JP2017028950A | 2017-02-02 | |||
| JPH1118433A | 1999-01-22 | |||
| JPH08107683A | 1996-04-23 | |||
| JP2017163789A | 2017-09-14 |
Attorney, Agent or Firm:
MURAKAMI Keigo et al. (JP)
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