回転機の制御装置

Japanese Patent JP4219362

B2

The present invention includes an integration unit (11) that integrates a primary angular frequency applied based on an angular velocity command, and that computes a phase, a power converting unit (14) that applies three phase voltages to a rotating machine (1) according to three phase voltage commands, a current detecting unit (15) that detects three phase currents carried to the rotating machine, a coordinate converting unit (13) that conducts a coordinate conversion of converting the currents detected by the current detecting unit into currents on a rotation two-axis coordinate based on the phase output from the integration unit (11), and of converting voltage commands on the rotation two-axis coordinates into the three phase voltage commands, and a voltage command computing unit (12) that computes the voltage commands on the rotation two-axis coordinate based on the primary angular frequency and the current on the rotation two-axis coordinate. The voltage command computing unit (12) computes the voltage commands on the rotation two-axis coordinate based on absolute values of respective axis current components on the rotation two-axis coordinate. It is therefore possible to make a current transient response when a load torque increases coincide with a current transient response when the load torque decreases as long as the load torque is at an equal operating point.

Yoshihiko Kanahara
Shinichi Furuya
Toshiyuki Kaiya

JP2005508738A

February 04, 2009

August 28, 2003

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Mitsubishi Electric Corporation

H02P27/04; H02P9/14; H02P21/00; H02P21/22; H02P23/07; H02P27/06

JP6225574A
JP2000228888A
JP11150996A

Hiroaki Sakai

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