Title:
CONTROL DEVICE, POWER CONVERSION DEVICE, AIR CONDITIONING SYSTEM, CONTROL METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/198507
Kind Code:
A1
Abstract:
This control device for controlling a motor is provided with: a rotation information calculation unit; an average load torque calculation unit; a normalized torque pattern storage unit; an allowable rotational speed fluctuation range storage unit for storing an allowable rotational speed fluctuation range of the motor defined as a function of the rotational speed of the motor; a modulation factor determination unit for determining a modulation factor so that the rotational speed fluctuation range of the motor becomes less than or equal to the allowable rotational speed fluctuation range and within a predetermined range from the allowable rotational speed fluctuation range; a compensated torque calculation unit for calculating a compensated torque pattern by multiplying the product of an average load torque and a normalized torque pattern by the modulation factor; and a torque control unit for controlling the supply of motor current to the motor on the basis of the average load torque and the compensated torque pattern.
Inventors:
KAWASHIMA KAZUMASA (JP)
SATO TAKESHI (JP)
AIBA KENICHI (JP)
WATANABE TAKAMASA (JP)
SHIMIZU KENJI (JP)
SUMITO KIYOTAKA (JP)
SATO TAKESHI (JP)
AIBA KENICHI (JP)
WATANABE TAKAMASA (JP)
SHIMIZU KENJI (JP)
SUMITO KIYOTAKA (JP)
Application Number:
PCT/JP2019/013245
Publication Date:
October 17, 2019
Filing Date:
March 27, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)
International Classes:
H02P6/10; H02P6/18; H02P21/05; H02P27/06
Foreign References:
| JP2008245506A | 2008-10-09 | |||
| JP2018057085A | 2018-04-05 | |||
| JP2001295769A | 2001-10-26 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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