Title:
CONTROL DEVICE, CONTROL METHOD, AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2024/100911
Kind Code:
A1
Abstract:
This control device controls an inverter for AC-driving a motor that rotates using a magnet torque and a reluctance torque. When estimating the mechanical angular speed and position of the rotor of the motor on the basis of the values of d-axis current and q-axis current flowing through the motor and the number of pole pairs of the motor, the control device removes harmonic components of 6n-th order (where, n includes 1, 2, and 0 or more natural numbers of 3 or more) from the values of d-axis current and q-axis current or the estimated angular speed of the rotor to estimate the mechanical angular speed and the position and controls the inverter using the estimated mechanical angular speed and position, said harmonic components at least including the 6-th order and 12-th order of a value obtained by multiplying the mechanical angular speed by the number of pole pairs.
Inventors:
KOMIYA SHINICHI (JP)
AIBA KENICHI (JP)
SHIMIZU KENJI (JP)
AIBA KENICHI (JP)
SHIMIZU KENJI (JP)
Application Number:
PCT/JP2023/004308
Publication Date:
May 16, 2024
Filing Date:
February 09, 2023
Export Citation:
Assignee:
MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)
International Classes:
H02P27/06
Domestic Patent References:
| WO2020240748A1 | 2020-12-03 |
Foreign References:
| JP2009296788A | 2009-12-17 | |||
| JPH0956176A | 1997-02-25 | |||
| JP2004120993A | 2004-04-15 | |||
| JP2009095145A | 2009-04-30 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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