This paper presents a design method for the synthesis of a general class of lead-lag compensators to exactly satisfy gain and phase margins specifications. A free parameter of the compensator is used as a degree of freedom in order to satisfy additional requirements on the phase and/or gain crossover frequencies. A graphical procedure for the compensator design on the Nyquist plane is presented with some numerical examples.
Lead-Lag compensators: Analytical and graphical design on the Nyquist plane / Zanasi, Roberto; Cuoghi, Stefania; Lorenzo, Ntogramatzidis. - ELETTRONICO. - (2011), pp. 4096-4101. ( 2011 50th IEEE Conference on Decision and Control and European Control Conference, CDC-ECC 2011 Orlando, FL, USA December 12-15, 2011) [10.1109/CDC.2011.6160801].
Lead-Lag compensators: Analytical and graphical design on the Nyquist plane
ZANASI, Roberto;CUOGHI, Stefania;
2011
Abstract
This paper presents a design method for the synthesis of a general class of lead-lag compensators to exactly satisfy gain and phase margins specifications. A free parameter of the compensator is used as a degree of freedom in order to satisfy additional requirements on the phase and/or gain crossover frequencies. A graphical procedure for the compensator design on the Nyquist plane is presented with some numerical examples.
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