Results 111 to 120 of about 12,702 (221)

Optimal Control of a Tri-axial Spacecraft Simulator Test bed Actuated by Reaction Wheels [PDF]

فصلنامه علوم و فناوری فضایی, 2016
This article describes the details of a Tri-axial Spacecraft Simulator Testbed (TSST) that has been developed as part of a research program on spacecraft multi-body rotational dynamics and control in Space Research Laboratory (SRL) at K. N.
Hojat Taei, M. Mirshams, M. Ghobadi, M. A. Vahid D., H. Haghi   +4 more
doaj  

Attitude Control of Nanosatellite Using Optimal Quadratic Linear and Nonlinear Methods [PDF]

فصلنامه علوم و فناوری فضایی
Linear algorithms are the most widely used method for satellite attitude control using reaction wheels because of their simplicity and low computational cost. The first part of the paper introduces different attitude determination and control algorithms,
Arash Abarghooei, Hassan Salarieh, Pedram Hosseiniakram   +2 more
doaj   +1 more source

An Optimized Active Compensation Control Framework for High-Speed Railway Pantograph via Imitation-Guided Deep Reinforcement Learning

Machines
Extreme pantograph–catenary contact force (PCCF) oscillations pose a serious challenge to the stable coupling between pantograph and catenary in high-speed railway systems.
Zhun Han, Qingsheng Feng, Wangyang Liu, Yuqi Liu, Hangtao Yang, Hong Li, Mingxia Xu, Shuai Xiao   +7 more
doaj   +1 more source

PERANCANGAN KENDALI HYBRID LINEAR QUADRATIC REGULATOR (LQR) - PD PADA KECEPATAN MOTOR BRUSHLESS DC [PDF]

, 2021
Motor brushless DC merupakan salah satu jenis dari motor DC konvensional yang memiliki keunggulan seperti kecepatan torsi yang baik, efesiensi yang tinggi, dan kecepatan yang tinggi karena tidak memiliki brush.
Syafri Yandi Oksia Putra, -
core  

Stochastic LQR Design With Disturbance Preview

CoRR
This paper considers the discrete-time, stochastic LQR problem with $p$ steps of disturbance preview information where $p$ is finite. We first derive the solution for this problem on a finite horizon with linear, time-varying dynamics and time-varying costs.
Jietian Liu, Laurent Lessard, Peter J. Seiler   +2 more
openaire   +3 more sources

LQR-trees with Sampling Based Exploration of the State Space

, 2023
This paper introduces an extension of the LQR-tree algorithm, which is a feedback-motion-planning algorithm for stabilizing a system of ordinary differential equations from a bounded set of initial conditions to a goal.
Fejlek, Jiří, Ratschan, Stefan
core  

Study on maintaining formations during satellite formation flying based on SDRE and LQR

Open Physics, 2017
Due to the influence of various perturbations of space, satellites flying in formation cannot maintain specific configurations for long durations [1, 2]. In order to ensure that formation configurations are able to meet the requirements of space missions,
Ke Zhang, Zhenqi He, Meibo Lv
doaj   +1 more source

Policy Gradient Bounds in Multitask LQR

IEEE Control Systems Letters
We analyze the performance of policy gradient in multitask linear quadratic regulation (LQR), where the system and cost parameters differ across tasks. The main goal of multitask LQR is to find a controller with satisfactory performance on every task.
Charis J. Stamouli, Leonardo F. Toso, Anastasios Tsiamis, George J. Pappas, James Anderson 0001   +4 more
openaire   +2 more sources

Regularization for Covariance Parameterization of Direct Data-Driven LQR Control

As the benchmark of data-driven control methods, the linear quadratic regulator (LQR) problem has gained significant attention. A growing trend is direct LQR design, which finds the optimal LQR gain directly from raw data and bypassing system ...
Chiuso, Alessandro, Dörfler, Florian, Zhao, Feiran   +2 more
core   +1 more source

LQR and Fuzzy-PID Control Design on Double Inverted Pendulum

Cauchy: Jurnal Matematika Murni dan Aplikasi
Double inverted pendulum is a non-linear and unstable system. Double inverted pendulum can be stabilized in the upright position by providing control to the system.
Erlyana Trie Damayanti, Mardlijah Mardlijah, Ridho Nur Rohman Wijaya   +2 more
doaj   +1 more source