Title:
ELECTRIC POWER CONVERSION DEVICE, MOTOR DRIVE DEVICE, AND REFRIGERATION CYCLE APPLICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/075163
Kind Code:
A1
Abstract:
An electric power conversion device (200) connected to a motor (7) comprises a rectification unit (3) that rectifies first AC power supplied from a commercial power supply (1), a smoothing capacitor (5) connected to output terminals of the rectification unit (3), an inverter (30) which is connected to both ends of the smoothing capacitor (5) to generate second AC power and outputs the second AC power to the motor (7), and a control device (100) that controls the operation of the inverter (30) to control the rotational speed of the motor (7). The control device (100) can calculate consumed electric power at a plurality of points and generates a d-axis current command value for the d-axis expressed in a dq rotation coordinate system so as to reduce consumed electric power consumed by the electric power conversion device (200) and the motor (7).
Inventors:
TOYODOME SHINYA (JP)
HATAKEYAMA KAZUNORI (JP)
SASAKI RYOICHI (JP)
ARISAWA KOICHI (JP)
HATAKEYAMA KAZUNORI (JP)
SASAKI RYOICHI (JP)
ARISAWA KOICHI (JP)
Application Number:
PCT/JP2022/036990
Publication Date:
April 11, 2024
Filing Date:
October 03, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P21/22
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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