Daikin Industries, Ltd.

Ryuuji Yasumoto

Yoshinari Asano

Nobuki Kitano

Shin Nakamasu

Naoto Kobayashi

Minoru Kitou

Nobuyuki Kifuji

Tomonori Kikuno

A power converter converts a DC voltage including a pulsation component into an AC voltage and outputs the AC voltage to a synchronous electrical motor. A control device for controlling the power converter includes a pulsation component detection unit and a control circuit. The pulsation component detection unit detects a pulsation component. The control circuit controls the power converter so that a load angle of the synchronous electrical motor is increased in accordance with increase in an instantaneous value of the pulsation component.

Control device for power converter

Teeth are arranged annularly around a rotation axis. The yoke has through holes. The through holes open in a radial direction around the rotation axis and in an axial direction along the rotation axis. The teeth are inserted through the through holes. A metal plate is arranged to face the yoke in the axial direction. A reinforcing plate is fixed to the teeth.

Armature core

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Osaka, Japan

Ryuuji Yasumoto