### Abstract

The problem of decentralized control is addressed, i.e. the problem of designing a controller where each control input is allowed to use only some of the measurements. It is shown that, for such problems, there does not always exist a sequence of controllers of bounded order which obtains near-optimal control. Neither does there exist an infinite-dimensional optimal controller. Using the insight of the line of proof of these results, a heuristic design algorithm is proposed for designing near-optimal controllers of increasing orders.

Original language | Danish |
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Journal | IMA Journal of Mathematical Control and Information |

Pages (from-to) | 299-308 |

ISSN | 0265-0754 |

DOIs | |

Publication status | Published - 1999 |

## Cite this

Stoustrup, J., & Niemann, H. H. (1999). Dynamical orders of decentralized H-infinity controllers.

*IMA Journal of Mathematical Control and Information*, 299-308. https://doi.org/10.1093/imamci/16.3.299