Closed-form solutions of singular KYP lemma: strongly passive systems, and fast lossless trajectories

C Bhawal, D Pal, MN Belur - International Journal of Control, 2020 - Taylor & Francis
In this paper, we deal with a special class of passive systems, which possess the
characteristic property of having no finite spectral zeros. We call these systems strongly …

Defective Hamiltonian matrix imaginary eigenvalues and losslessness

A Kothyari, C Bhawal, MN Belur… - 2019 Fifth Indian Control …, 2019 - ieeexplore.ieee.org
The solutions to algebraic Riccati equation (ARE) have widespread applications in the area
of control and network theory. For certain solutions of the Riccati equation, namely so …

Fast modes in the set of minimal dissipation trajectories

SC Jugade, D Pal, RK Kalaimani, MN Belur - Systems & Control Letters, 2017 - Elsevier
In this paper, we study the set of trajectories satisfying both a given LTI system's laws and
also laws of the corresponding 'adjoint'system: in other words, trajectories in the intersection …

On the link between storage functions of allpass systems and Gramians

C Bhawal, D Pal, MN Belur - 2017 IEEE 56th Annual …, 2017 - ieeexplore.ieee.org
In this paper, we bring out a link between storage functions of allpass systems and
observability/controllability Gramians. We show that under a particular transformation, the …

[PDF][PDF] A subspace intersection based method for faster computation of the storage function for the lossless and all-pass cases

A Kothyari, C Praagman, MN Belur, D Pal - Proc. Int. Symp. Math …, 2016 - ee.iitb.ac.in
The Algebraic Riccati Equation (ARE) cannot be formulated for the conservative/lossless
and all-pass cases, though the notion of 'storage function'is well-defined for these cases too …

New properties of ARE solutions for strictly dissipative and lossless systems

C Bhawal, S Kumar, D Pal, MN Belur - Mathematical Control Theory II …, 2015 - Springer
Abstract Algebraic Riccati Equation (ARE) solutions play an important role in many
optimal/suboptimal control problems. However, a key assumption in formulation and solution …

On solutions of bounded-real LMI for singularly bounded-real systems

C Bhawal, D Pal, MN Belur - 2018 European Control …, 2018 - ieeexplore.ieee.org
In this paper, we provide an algorithm to compute the solutions of the LMI arising from the
bounded-real lemma for a special class of bounded-real systems that do not admit algebraic …

[PDF][PDF] Hamiltonian matrix, orthogonal complements

B is Σ-lossless - ee.iitb.ac.in
In the case of dissipativity, the storage function is not unique, in general.(Note that
nonuniqueness of the storage function is not due to our choice of expressing the storage …