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Controller reduction: concepts and approaches

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2 Author(s)
Anderson, B.D.O. ; Dept. of Syst. Eng., Australian Nat. Univ., Canberra, ACT, Australia ; Liu, Y.

The problem of passing from a linear time-invariant high-order controller designed for a linear time-invariant plant (of presumably high order) to a low-order approximation of the controller is discussed. The approximation problem is often best posed as a frequency-weighted L approximation problem. Many different controller representations are possible, giving different performances of the various reduction algorithms

Published in:

Automatic Control, IEEE Transactions on  (Volume:34 ,  Issue: 8 )