Method, article of manufacture, and system for configuring controller in sliding-mode control scheme

Patent metadata

Field	Value
Publication number	US-8942832-B2
Application number	US-201113291141-A
Country	US
Kind code	B2
Filing date	Nov 8, 2011
Priority date	Nov 30, 2010
Publication date	Jan 27, 2015
Grant date	Jan 27, 2015

Abstract

Method, article of manufacture and system using minimum data to determine whether a sliding-mode control should be applied in a plant. First measure the plant in an open-loop control fashion, and using the measured data, describe a state equation of the plant by system identification and order determination methods. Then design a switching hyperplane for sliding-mode control. Next, calculate higher order statistics on the difference between an output of a linear model on the hyperplane and an output of the sliding-mode control model in the measured data; When any of the higher order moments is larger than a predetermined threshold, configure a controller as a sum of the linear control input term and the nonlinear control input term. If both higher-order moments are smaller than the threshold, then configure the controller using only a linear control input term.

First claim

I claim:

1. A method of configuring a controller for a plant using a sliding-mode control scheme, the method comprising:
obtaining a measured observation data sequence by an open-loop control measurement of the plant;
describing a state space equation of the plant by a system identification technique based on the measured value, and designing a switching hyperplane for a sliding-mode control model;
calculating a third-order statistic and a fourth-order statistic on a differenc…

Assignees

• Shimizu Junya
• IBM

Inventors

• Shimizu Junya

Classifications

• G05B2219/42343

  Physics · mapped topic

• G05B13/0205 Primary

  Physics · mapped topic

• G05B2219/42352

  Physics · mapped topic