Distributed Design of Glocal Controllers via Hierarchical Model Decomposition

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Sasahara, HampeiTokyo Inst Technol, Grad Sch Engn, Tokyo 1528552, Japan. (författare)

Distributed Design of Glocal Controllers via Hierarchical Model Decomposition

Artikel/kapitelEngelska2023

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Institute of Electrical and Electronics Engineers (IEEE),2023
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LIBRIS-ID:oai:DiVA.org:kth-338959
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-338959URI
https://doi.org/10.1109/TAC.2023.3234919DOI

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Språk:engelska
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QC 20231101
This article proposes a distributed design method of controllers with a glocal (global/local) information structure for large-scale network systems. The glocal controller of interest has a hierarchical structure, wherein a global subcontroller coordinates a set of disjoint local subcontrollers. The global subcontroller regulates interarea oscillations among subsystems, while local subcontrollers individually regulate intraarea oscillations of the respective subsystem. The distributed design of the glocal controller is addressed to enhance the scalability of controller synthesis, where the global subcontroller and all local subcontrollers are designed independently of each other. A design problem is formulated for subcontroller sets such that any combination of subcontrollers each of which belongs to its corresponding set guarantees stability of the closed-loop system. The core idea of the proposed method is to represent the original network system as a hierarchical cascaded system composed of reduced-order models representing the interarea and intraarea dynamics, referred to as hierarchical model decomposition. Distributed design is achieved by virtue of the cascade structure. The primary findings of this study are twofold. First, a tractable solution to the distributed design problem and an existence condition of the hierarchical model decomposition are presented. Second, a clustering method appropriate for the proposed framework and a robust extension are provided. Numerical examples of a power grid highlight the practical relevance of the proposed method.

Ämnesord och genrebeteckningar

TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik Reglerteknik hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering Control Engineering hsv//eng
Network systems
Reduced order systems
Oscillators
Power system stability
Power grids
Power system dynamics
Mathematical models
Distributed design
glocal control
large-scale systems
model reduction

Biuppslag (personer, institutioner, konferenser, titlar ...)

Ishizaki, TakayukiTokyo Inst Technol, Grad Sch Engn, Tokyo 1528552, Japan. (författare)
Imura, Jun-ichiTokyo Inst Technol, Grad Sch Engn, Tokyo 1528552, Japan. (författare)
Sandberg, HenrikKTH,Reglerteknik(Swepub:kth)u1i9irki (författare)
Johansson, Karl Henrik,1967-KTH,Reglerteknik(Swepub:kth)u1h0d9k2 (författare)
Tokyo Inst Technol, Grad Sch Engn, Tokyo 1528552, Japan.Reglerteknik (creator_code:org_t)

Sammanhörande titlar

Ingår i:IEEE Transactions on Automatic Control: Institute of Electrical and Electronics Engineers (IEEE)68:10, s. 6146-61590018-92861558-2523

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Av författaren/redakt...: Sasahara, Hampei; Ishizaki, Takayu ...; Imura, Jun-ichi; Sandberg, Henrik; Johansson, Karl ...

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TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Elektroteknik oc ...; och Reglerteknik

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Av lärosätet: Kungliga Tekniska Högskolan

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