id: 05907171
dt: j
an: 05907171
au: Schné, Tamás; Hangos, Katalin Mária
ti: Decentralised controller structure design and retrofit of process systems
    based on graph theory.
so: Int. J. Syst. Sci. 42, No. 6, 1023-1033 (2011).
py: 2011
pu: Taylor \& Francis, London
la: EN
cc: 
ut: decentralised controller; graph theory; matrix-based design method; closest
    weighted maximum matching.
ci: 
li: doi:10.1080/00207720903282964
ab: Summary: A relative degree matrix-based design method is proposed in this
    article by using graph theoretical methods for optimal control
    structure design consisting of single input-single output control
    loops. This approach enables us to use an efficient algorithm for
    finding a maximum weighted matching to solve the controller structure
    selection problem. The resulting optimal structures have been refined
    by analyzing the zero dynamics of the input-output pairs. A novel
    method for decentralized controller structure retrofit is also proposed
    in this article. A graph theoretic algorithm is developed, which is
    based on finding the closest weighted maximum matching. Possible
    changes in efficiency in the controller structure, which may arise
    after retrofit, are illustrated using a heat exchanger network retrofit
    case study.
rv: