Title:
OPTIMUM CONTROL DEVICE, OPTIMUM CONTROL METHOD AND COMPUTER PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/241657
Kind Code:
A1
Abstract:
Provided are an optimum control device, an optimum control method, and a computer program which can adapt to the dynamics of a target control process and more stably operate extreme value control. The optimum control device according to the present embodiment comprises a first gradient estimation unit, a manipulated variable determination unit, a second gradient estimation unit, and a parameter adjustment unit. The first gradient estimation unit estimates the Jacobian of an evaluation function on the basis of a signal indicating an evaluation amount. The manipulated variable determination unit determines a direction and an amount to move a manipulated variable by means of integrating the estimated value of the Jacobian. The second gradient estimation unit estimates the Hessian of the evaluation function on the basis of the signal indicating the evaluation amount. The parameter adjustment unit adjusts integration gain in the manipulated variable determination unit in accordance with a change in the evaluation function by means of dividing the estimated value of the Jacobian, which was inputted into the manipulated variable determination unit, by a regularized signal, which is a value based on the estimated value of the Jacobian or the Hessian of the evaluation function and adjusted so as to not be 0.
Inventors:
YAMANAKA OSAMU (JP)
ONISHI YUUTA (JP)
HIRAOKA YUKIO (JP)
ONISHI YUUTA (JP)
HIRAOKA YUKIO (JP)
Application Number:
PCT/JP2020/020816
Publication Date:
December 03, 2020
Filing Date:
May 27, 2020
Export Citation:
Assignee:
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORP (JP)
TOSHIBA KK (JP)
TOSHIBA KK (JP)
International Classes:
G05B13/02
Foreign References:
| JP2017033104A | 2017-02-09 | |||
| JP2017224176A | 2017-12-21 | |||
| JP2001016775A | 2001-01-19 |
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
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