Finite gain and phase margins as dissipativity conditions

@article{Pal2010FiniteGA,
title={Finite gain and phase margins as dissipativity conditions},
author={Debasattam Pal and Madhu N. Belur},
journal={Proceedings of the 2010 American Control Conference},
year={2010},
pages={337-342}
}

It is well-known that the two situations: gain margin being infinite and phase margin being infinite are individually special cases of dissipativities with respect to suitable supply rates; the small gain theorem and passivity result being the respective theorems. However, in practice, the two margins being finite also allows concluding closed loop stability using the Nyquist stability criteria. We show in this paper that the finite and positive gain and phase margin condition is equivalent to… CONTINUE READING