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Title:
CONTROL DEVICE, CONTROL METHOD, AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2024/084724
Kind Code:
A1
Abstract:
This control device controls the rotation speed of a motor by controlling an inverter for AC driving a motor that rotationally drives a compressor, wherein: a compensation torque value is calculated by multiplying an average output torque command value calculated in accordance with a deviation between the rotation speed of the motor and a rotation speed command value by a normalized torque pattern, which is a pattern of a plurality of coefficient values that change in accordance with the rotation angle of the motor and is set such that the total value of one rotation is zero; the compensation torque value is added to the average output torque command value, thereby setting an output torque command value of the motor in accordance with the rotation angle to control the inverter; and a pre-adjustment normalized torque pattern is compared with a post-adjustment normalized torque pattern, which is a normalized torque pattern obtained by individually adjusting a plurality of values using any one among a plurality of bit patterns each having a bit number that is based on the number of the plurality of coefficient values, said comparison being performed on the basis of respective calculation results of prescribed evaluation values associated with a fluctuation in rotation speed obtained as a result of being actually used to control the motor. Either one of the normalized torque patterns is adopted.

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Inventors:
KOMIYA Shinichi (2-3, Marunouchi 3-Chome, Chiyoda-k, Tokyo 32, JP)
AIBA Kenichi (2-3, Marunouchi 3-Chome, Chiyoda-k, Tokyo 32, JP)
SHIMIZU Kenji (2-3, Marunouchi 3-Chome, Chiyoda-k, Tokyo 32, JP)
Application Number:
PCT/JP2023/015810
Publication Date:
April 25, 2024
Filing Date:
April 20, 2023
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. (Chiyoda-ku Tokyo, 32, JP)
International Classes:
H02P27/06; F04B49/06; F24F11/86; F25B1/00
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (Marunouchi Chiyoda-k, Tokyo 20, JP)
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