Search Results for author: Nikolay Nikolaev

Found 5 papers, 0 papers with code

Parameter identification algorithm for a LTV system with partially unknown state matrix

no code implementations21 Feb 2024 Olga Kozachek, Nikolay Nikolaev, Olga Slita, Alexey Bobtsov

In this paper an adaptive state observer and parameter identification algorithm for a linear time-varying system are developed under condition that the state matrix of the system contains unknown time-varying parameters of a known form.

Application of a nonlinear operator to identify an unknown parameter for a scalar regression equation with disturbance in the measurement channel

no code implementations25 May 2023 Vladimir Vorobyev, Alexey Bobtsov, Nikolay Nikolaev, Anton Pyrkin

The article investigates an algorithm for identifying an unknown constant parameter for a scalar regression model using a nonlinear operator that allows us to obtain a new regression equation (with an expanded number of unknown parameters) for which the influence of interference in measurement or disturbance will be minimal.

regression

Adaptive observer of state variables of a nonlinear time varying system with unknown constant parameters

no code implementations24 May 2023 Olga Kozachek, Alexey Bobtsov, Nikolay Nikolaev

The paper proposes an adaptive observer of the state vector of a nonlinear time varying system based on measurements of the output variable.

regression

Synthesis of an adaptive observer of state variables for a linear stationary object in the presence of measurement noise

no code implementations24 May 2023 Alexey Bobtsov, Vladimir Virobyev, Nikolay Nikolaev, Anton Pyrkin, Romeo Ortega

It is also assumed that there is no a priori information about the disturbance or noise in the measurement channel (for example, frequency spectrum, covariance, etc.).

An Almost Globally Stable Adaptive Phase-Locked Loop for Synchronization of a Grid-Connected Voltage Source Converter

no code implementations14 Jan 2022 Daniele Zonetti, Alexey Bobtsov, Romeo Ortega, Nikolay Nikolaev, Oriol Gomis-Bellmunt

In this paper we are interested in the problem of adaptive synchronization of a voltage source converter with a possibly weak grid with unknown angle and frequency, but knowledge of its parameters.

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