Abstract
Non-fragile robust control problem of a paper basis weight is studied. It is pointed out that this problem is really a non-fragile robust performance problem, the problem with both non-fragile robust stability and performance requirements(bandwidth and disturbance attenuation). It is also suggested that the design of the non-fragile robust performance can be formulated as a μ-synthesis problem, if the uncertainty weighting function and the performance weighting function to system bandwidth and disturbance attenuation are revised appropriately. The μ-synthesis non-fragile robust PI controllers of the paper basis weight control system are solved. The results show that the proposed method is efficient and feasible.
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