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Selection of variables for stabilizing control using pole vectors

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2 Author(s)
K. Havre ; Dept. of Chem. Eng., Norwegian Univ. of Sci. & Technol., Trondheim, Norway ; S. Skogestad

For a linear multivariable plant, it is known from earlier work that the easy computable pole vectors provide useful information about in which input channel (actuator) a given mode is controllable and in which output channel (sensor) it is observable. In this note, we provide a rigorous theoretical basis for the use of pole vectors, by providing a link to previous results on performance limitations for unstable plants.

Published in:

IEEE Transactions on Automatic Control  (Volume:48 ,  Issue: 8 )