The Application of Error Quaternion and PID Control Method in Earth Observation Satellite's Attitude Control System

2006 ◽  
Author(s):  
Qiyu Wang ◽  
Jianping Yuan ◽  
Zhanxia Zhu
Keyword(s):  
Control System ◽  
Pid Control ◽  
Attitude Control ◽  
Control Method ◽  
Earth Observation ◽  
Attitude Control System

Comparison between H2 and H∞ Optimal Control Solutions for a Combined Energy and Attitude Control System

2012 ◽  
Vol 225 ◽  
pp. 464-469 ◽  
Author(s):  
Ban Ying Siang ◽  
Renuganth Varatharajoo
Keyword(s):  
Optimal Control ◽  
Control System ◽  
Pid Control ◽  
Attitude Control ◽  
Disturbance Rejection ◽  
Control Method ◽  
Proportional Integral Derivative ◽  
Attitude Control System ◽  
Control Option ◽  
Optimal Control Methods

The paper focuses on applying optimal control solutions to combined energy storage and attitude control system (CEACS) under different reference missions. In previous researches, the proportional-integral-derivative (PID) control method, the PID-active force control method and H2 control were tested for CEACS and achieved its mission requirement. However, problems such as the in-orbit system uncertainties affect the PID control performances. Thus, two optimal control methods, H2 and H∞ controls are proposed and tested on CEACS under different mission scenarios to improve its pitch attitude accuracy. Results show that both H2 and H∞ are able to achieve the reference mission requirement even under the influence of uncertainties (non-ideal). Moreover comparison between H2 and H∞ shows the H2 is a better control option for CEACS in terms of disturbance rejection.

scholarly journals Neural Network Control System of UAV Altitude Dynamics and Its Comparison with the PID Control System

2018 ◽  
Vol 2018 ◽  
pp. 1-18 ◽  
Author(s):  
Jemie Muliadi ◽  
Benyamin Kusumoputro
Keyword(s):  
Control System ◽  
Pid Control ◽  
Attitude Control ◽  
Control Method ◽  
Comparative Method ◽  
Linear Method ◽  
Network Control ◽  
Analysis Tool ◽  
Inverse Control ◽  
Pid Tuning

This article proposes a comparative method to assess the performance of artificial neural network’s direct inverse control (DIC-ANN) with the PID control system. The comparison served as an analysis tool to assess the advantages of DIC-ANN over conventional control method for a UAV attitude controller. The development of ANN method for UAV control purposes arises due to the limitations of the conventional control method, which is the mathematical based model, involving complex expression, and most of them are difficult to be solved directly into analytic solution. Although the linearization simplified the solving process for such mathematical based model, omitting the nonlinear and the coupling terms is unsuitable for the dynamics of the multirotor vehicle. Thus, the DIC-ANN perform learning mechanism to overcome the limitation of PID tuning. Therefore, the proposed comparative method is developed to obtain conclusive results of DIC-ANN advantages over the linear method in UAV attitude control. Better achievement in the altitude dynamics was attained by the DIC-ANN compared to PID control method.

Research on Extra-Atmospheric Aircraft Modeling and Control Based on Maneuvering Target

2015 ◽  
Vol 799-800 ◽  
pp. 1142-1148
Author(s):  
Peng Liu ◽  
Cheng Yuan Peng ◽  
Ge Li ◽  
Feng Xue ◽  
Jia Qi Liu
Keyword(s):  
Control System ◽  
Attitude Control ◽  
Control Method ◽  
Attitude Control System ◽  
Proportional Navigation ◽  
Modeling And Control ◽  
Performance Improvements ◽  
Orbit Control ◽  
Guidance Law ◽  
Significant Performance

The extra-atmospheric aircraft model is established, and then the control system is designed. The control system consist of attitude control system and orbit control system, the attitude control system used PID controller and the orbit control system used augmented proportional navigation method. The traditional Proportional Navigation (PN) guidance law has higher accuracy. But for highly maneuvering targets, the accuracy of traditional PN guidance law is still not enough. An Augmented Proportional Navigation (APN) guidance law is designed, an acceleration compensation of the target is introduced on the basis of PN guidance law to overcome the effect of the acceleration on the guidance accuracy. And the engine control method is designed based on the fixed engine thrust. Simulation results indicated that, for homing against maneuverable targets, the APN guidance law is better than the PN guidance law in the following aspects: guidance accuracy is higher, miss distance is lower, interception time is shorter. And the new guidance law provides significant performance improvements over the commonly used classical proportional navigation law.

Sliding Mode Predictive Control Method for Attitude Control of Networked Launch Vehicle

2011 ◽  
Vol 467-469 ◽  
pp. 962-967
Author(s):  
Yu Chen ◽  
Guang Li ◽  
Chao Yang Dong ◽  
Qing Wang
Keyword(s):  
Control System ◽  
Sliding Mode Control ◽  
Predictive Control ◽  
Attitude Control ◽  
Control Method ◽  
Sliding Mode ◽  
Launch Vehicle ◽  
Uncertain Parameters ◽  
Attitude Control System ◽  
Mode Control

A novel adaptive fuzzy sliding mode predictive control (AFSMPC) method for solving the networked launch vehicle attitude control system with network-induced delay, uncertain parameters and outer disturbances is proposed in this paper for the attitude stabilization of the networked launch vehicle control system. The proposed sliding mode surface includes a predictor to compensate for the network-induced delay of the NCS. Then, for the networked Launch vehicle attitude control system with uncertain parameters and outer disturbances, a total sliding-mode control system is proposed, which is designed without the reaching phase of a conventional sliding-mode control. In order to attenuate the chattering phenomena brought by the proposed control, a fuzzy logic system is designed to mimic the good behavior of a total sliding-mode predictive control system. Finally, Simulation results show that the proposed control scheme is effective.

scholarly journals Using of H-Infinity Control Method in Attitude Control System of Rigid-Flexible Satellite

2009 ◽  
Vol 2009 ◽  
pp. 1-9 ◽  
Author(s):  
Ximena Celia Méndez Cubillos ◽  
Luiz Carlos Gadelha de Souza
Keyword(s):  
Adaptive Control ◽  
Control System ◽  
Control Systems ◽  
Attitude Control ◽  
Control Method ◽  
Control Design ◽  
Attitude Control System ◽  
H Infinity ◽  
H Infinity Control ◽  
Linear And Nonlinear

The attitude control systems of satellites with rigid and flexible components are demanding more and more better performance resulting in the development of several methods control. For that reason, control design methods presently available, including parameters and states estimation, robust and adaptive control, as well as linear and nonlinear theory, need more investigation to know their capability and limitations. In this paper the investigated technique is H-Infinity method in the performance of the Attitude Control System of a Rigid-Flexible Satellite.

Double Fail-Safe Attitude Control System for Artificial Meteor Microsatellite ALE-1

2021 ◽  
Vol 19 (1) ◽  
pp. 9-16
Author(s):  
Shinya FUJITA ◽  
Yuji SATO ◽  
Toshinori KUWAHARA ◽  
Yuji SAKAMOTO ◽  
Yoshihiko SHIBUYA ◽  
...  
Keyword(s):  
Control System ◽  
Attitude Control ◽  
Attitude Control System ◽  
Fail Safe
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