Path planning and dynamic collision avoidance algorithm under COLREGs via deep reinforcement learning

X Xu, P Cai, Z Ahmed, VS Yellapu, W Zhang - Neurocomputing, 2022 - Elsevier
As one of the core technologies of the automatic control system for unmanned surface
vehicles (USVs), autonomous collision avoidance algorithm is the key to ensure the safe …

COLREGs-abiding hybrid collision avoidance algorithm based on deep reinforcement learning for USVs

X Xu, Y Lu, G Liu, P Cai, W Zhang - Ocean Engineering, 2022 - Elsevier
In order to realize the autonomous collision avoidance of unmanned surface vehicles
(USVs), an intelligent hybrid collision avoidance algorithm based on deep reinforcement …

Energy-sha** controller for DFIG-based wind farm to mitigate subsynchronous control interaction

P Li, J Wang, L **ong, S Huang, M Ma… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Increasing use of series compensation in doubly-fed induction generator (DFIG)-based wind
farms has led to subsynchronous control interaction (SSCI) incidents. The irregular …

Identifiability implies robust, globally exponentially convergent on-line parameter estimation

L Wang, R Ortega, A Bobtsov… - International Journal of …, 2024 - Taylor & Francis
In this paper we propose a new parameter estimator that ensures global exponential
convergence of linear regression models requiring only the necessary assumption of …

Generation of new exciting regressors for consistent online estimation of unknown constant parameters

A Bobtsov, B Yi, R Ortega… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The problem of estimating constant parameters from a standard vector linear regression
equation in the absence of sufficient excitation in the regressor is addressed. The first step to …

On the equivalence of contraction and Koopman approaches for nonlinear stability and control

B Yi, IR Manchester - IEEE Transactions on Automatic Control, 2023 - ieeexplore.ieee.org
In this article, we prove new connections between two frameworks for analysis and control of
nonlinear systems: the Koopman operator framework and contraction analysis. Each …

A new on-line exponential parameter estimator without persistent excitation

M Korotina, JG Romero, S Aranovskiy, A Bobtsov… - Systems & Control …, 2022 - Elsevier
In this paper we propose a new algorithm that estimates on-line the parameters of a
classical vector linear regression equation Y= Ω θ, where Y∈ R n, Ω∈ R n× q are bounded …

Enhanced synchronization stability of grid-forming inverters with passivity-based virtual oscillator control

L Kong, Y Xue, L Qiao, F Wang - IEEE Transactions on Power …, 2022 - ieeexplore.ieee.org
In this article, a passivity-based virtual oscillator control strategy with enhanced
synchronization stability for grid-forming inverters (GFMs) is proposed. By adopting the port …

Cooperative control of velocity and heading for unmanned surface vessel based on twin delayed deep deterministic policy gradient with an integral compensator

Y Wang, S Zhao, Q Wang - Ocean Engineering, 2023 - Elsevier
This paper addresses cooperative control of velocity and heading for an unmanned surface
vessel (USV) utilizing a twin delay deep deterministic policy gradient (TD3) reinforcement …

Parameter estimation and adaptive control of Euler–Lagrange systems using the power balance equation parameterisation

JG Romero, R Ortega, A Bobtsov - International Journal of Control, 2023 - Taylor & Francis
It is widely recognised that the existing parameter estimators and adaptive controllers for
robot manipulators are extremely complicated, stymieing their practical use–in particular, for …