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Application of the normalised H∞ loop-shaping technique for design and simplification of damping controllers in the LMI framework is illustrated. A linearised model of the power system is pre- and post-compensated using the loop-shaping approach. The problem of robust stabilisation of a normalised coprime factor plant description is translated to a generalised H∞ problem. The solution is sought numerically using LMIs with additional pole-placement constraints. This ensures that the time-domain specifications are met besides robust stabilisation.
Generation, Transmission and Distribution, IEE Proceedings- (Volume:152 , Issue: 6 )
Date of Publication: 4 Nov. 2005