Analysis of the Hausat-2 Attitude Control with a Pitch Bias Momentum System
نویسندگان
چکیده
The HAUSAT-2 is a 30kg class nanosatellite which is stabilized by 3-axis active control method. Its main mission objectives are to provide studying the scope of activity and ecology of animals using Animal Tracking System (ATS) and collecting the space information data of mission orbit from Electric Plasma Probe (EPP) as a space science payload. 2-axes sun sensors, 3-axes magnetometer, and star tracker are implemented to determine the attitude position. In HAUSAT-2, attitude control algorithm will combine B dot algorithm and PD control method. B dot algorithm will be used in initial mode, whereas PD control method will be used in on-orbit mode. Each control law is implemented with Pulse-Width Modulated(PWM) on-off control, and it was shown to work equally well with the original continuous and variable strength control law. This paper also addresses the performance of attitude control results using pitch momentum bias control method in initial mode and on-orbit mode.
منابع مشابه
Attitude Control Strategy for HAUSAT-2 with Pitch Bias Momentum System
The HAUSAT-2 is a 25kg class micro/nanosatellite which is being developed by graduate students at the Space System Research Laboratory(SSRL). This paper addresses a newly proposed strategy for detumbling the HAUSAT-2 and starting up a momentum wheel, and also studies performance validation and application ranges of such method through simulation. B-dot logic is generally used for controlling th...
متن کاملModified L1 Adaptive Control Design for Satellite FMC Systems with Actuators Time Delay
A modified method for satellite attitude control system in presence of novel actuators is proposed in this paper. The attitude control system is composed of three fluidic momentum controller (FMC) actuators that are used to control Euler angles and their dynamics is considered in satellite attitude equations as well. L1 adaptive control is utilized for satellite three-axial ...
متن کاملEffect of Platform Surge Motion on the Performance of 5MW NREL Offshore Floating Wind Turbine
In this study, an unsteady aerodynamic simulation is performed to realize the influences of platform surge motion on the aerodynamic performance of a high capacity offshore floating wind turbine. A dynamic model with pitch angle control system is utilized to propose a more realistic model of wind turbine and also achieve the rated condition of the rotor. The transient effect of platform surge m...
متن کاملDifferent Types of Pitch Angle Control Strategies Used in Wind Turbine System Applications
The most common controller in wind turbine is the blade pitch angle control in order to get the desired power. Controlling the pitch angle in wind turbines has a direct impact on the dynamic performance of the machine and fluctuations in the power systems. Due to constant changes in wind speed, the wind turbines are of nonlinear and multivariate system. The design of a controller that can ad...
متن کاملDetailed Characterization of Magnetic Fields Surrounding the Whorl Ii Spacecraft Simulator and Application to Attitude Determination
The research presented in this report focuses on the Whorl II spacecraft simulator in Virginia Tech’s Space Systems Simulation Laboratory (SSSL). The goal of this research is to improve the reliability and accuracy of the magnetometer aboard Whorl II that is used for attitude determination. Magnetic interference surrounding the simulator causes unacceptable margins of error its perceived attitu...
متن کامل