システム制御情報学会論文誌
Online ISSN : 2185-811X
Print ISSN : 1342-5668
ISSN-L : 1342-5668
論文
階層分散オブザーバの設計と電力ネットワークへの適用
小池 雅和石崎 孝幸定本 知徳井村 順一
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2014 年 27 巻 9 号 p. 353-363

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In this paper, we propose a design method of hierarchical decentralized observers for networked linear systems. In this method, based on suitable state-space expansion of the network systems, we, first, find a high-dimensional dynamical compensator that can achieve any desirable performance for decentralized state estimation. Next, fully taking advantage of model reduction techniques, we extract a subspace that is essentially relevant to the decentralized state estimation, from the high-dimensional state-space of the dynamical compensator. This procedure successfully yields a lower-dimensional compensator that guarantees not only the stability of the estimation error but also a desirable estimation performance with respect to the system behavior for external input signals. The effectiveness of the proposed method is shown through an application to the state estimation of power networks.

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© 2014 システム制御情報学会
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