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Title:
永久磁石電動機装置、冷凍サイクル装置、永久磁石電動機の駆動方法
Document Type and Number:
Japanese Patent JP4300730
Kind Code:
B2
Abstract:

To obtain the maximum efficiency drive of a permanent magnet motor by identifying a motor constant, in a device to drive a permanent magnet motor without using a position sensor.

A motor drive device has a permanent magnet synchronous motor, an inverter to operate the motor, a current detector to detect current flowing into the motor, and an inverter control means to position-sensorless-drive using a current detected by the current detector without detecting the rotor position of the motor. The motor is sensorlessly driven with high efficiency by having a function to identify the motor constant of the permanent magnet motor with an inverter control means, by having a motor output calculation means to calculate the output of the motor based on the motor constant identified with the inverter control means, and by providing an adjustment means to adjust the output from the inverter corresponding to the calculation result of the output calculation means.

COPYRIGHT: (C)2003,JPO


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Inventors:
Yosuke Shinomoto
Mamoru Kawakubo
Shinya Nishida
Application Number:
JP2001357265A
Publication Date:
July 22, 2009
Filing Date:
November 22, 2001
Export Citation:
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Assignee:
Mitsubishi Electric Corporation
International Classes:
F24F11/02; F24F11/46; F24F11/49; F24F11/62; F24F11/86; H02P6/06; H02P6/08; H02P6/16; H02P6/28; H02P21/00; H02P21/18; H02P21/22; H02P21/24; H02P21/28; H02P23/16; H02P27/04; H02P29/00; H02P29/40; H02P29/60; F24F110/10; F24F110/12; F24F140/00
Domestic Patent References:
JP2001069783A
JP2001086782A
JP2001211699A
JP2001186800A
JP2001186787A
JP2001161090A
Attorney, Agent or Firm:
Shogo Takahashi
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka