5 papers
An Algebraic Observer for State-Affine Systems
Romeo Ortega, Alexey Bobtsov, Anton Pyrkin +1
We present a new systematic method to design an algebraic swapping lemma observer for nonlinear systems which are affine in the state. Four are the main features of the new observe…
An Algebraic State Observer for a Self-Sensing Active Magnetic Bearing System
Olga Zarina, Natalya Martyuhova, Alexey Bobtsov +1
The problem of designing a globally stable observer for a self-sensing active magnetic bearing system assuming only measurements of currents and voltages is addressed in this paper…
An Algebraic State Observer for a Class of Physical Systems
Alexey Bobtsov, Jose Guadalupe Romero, Romeo Ortega +1
In this paper we present a radically new approach to design state observers for nonlinear systems, with particular emphasis on physical ones. Our objective is to obtain an algebrai…
State Observer for the Fourth-order Model of a Salient Pole Synchronous Generator with Stator Losses: Known and Partially Unknown Input Cases
Alexey Bobtsov, Romeo Ortega, Nicolai Lorenz-Meyer +1
In this paper we study the question of how to reconstruct the state of a power system using Phasor Measurement Units (PMUs). In our previous research we proved that this question h…
Adaptive State Observers of Linear Time-varying Descriptor Systems: A Parameter Estimation-Based Approach
Romeo Ortega, Alexey Bobtsov, Fernando Castanos +1
In this paper, we apply the recently developed generalized parameter estimation-based observer design technique for state-affine systems to the practically important case of linear…