论文信息 - Inherent design limitations for feedback systems with periodic digital controllers

Inherent design limitations for feedback systems with periodic digital controllers

We show that design limitations due to non-minimum phase (NMP) zeros of an analog plant remain present in sampled-data feedback systems with periodic digital (PD) controllers. Furthermore, the action of the periodic controller induces harmonics within the baseband and increases differential sensitivity to plant variations.

Richard H. Middleton | Jim Freudenberg | D. S. Ortiz

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