Modifications of Optimization Algorithms Applied in Multivariable Predictive Control

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17450%2F18%3AA1901XTP" target="_blank" >RIV/61988987:17450/18:A1901XTP - isvavai.cz</a>

Alternative codes found

RIV/70883521:28140/18:63520139

Result on the web

<a href="http://wseas.org/wseas/cms.action?id=18776" target="_blank" >http://wseas.org/wseas/cms.action?id=18776</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Modifications of Optimization Algorithms Applied in Multivariable Predictive Control

Original language description

Non-linear optimization, particularly quadratic programming (QP), is a mathematical method which is widely applicable in model predictive control (MPC). It is significantly important if constraints of variables are considered in MPC and the optimization task is then computationally demanding. The result of the optimization is a vector of future increments of a manipulated variable. The first element of this vector is applied in the next sampling period of MPC in the framework of a receding horizon strategy. In practical realization of a multivariable MPC, the optimization is characterized by higher computational complexity. Therefore, reduction of the computational complexity of the optimization methods has been widely researched. Besides the generally used numerical Hildreth?s method of QP, a possible suitable modification is based on precomputing operations proposed by Wang, L. This general optimization strategy is further modified. Two modifications, which could be applied separately each, were interconnected in this paper. The first modification was published previously; however, its application can be more efficient in connection with the second proposed approach, which modifies precomputing operations. Decreasing of the computational complexity of the optimization by using of the proposal is discussed and analyzed by measurements of floating point operations and control quality criterions using hypotheses tests - paired T-test and Wilcoxon test.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20205 - Automation and control systems

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

WSEAS Transactions on Systems and Control

ISSN

1991-8763

e-ISSN

2224-2856

Volume of the periodical

13

Issue of the periodical within the volume

December

Country of publishing house

GR - GREECE

Number of pages

9

Pages from-to

497-505

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85061282662