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CLEVELAND STATE UNIVERSITY
CREATE
Cleveland, Ohio
Aerospace Power-System Technologies
Web Site
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Simplorer for a reaction wheel
OTHER SOLUTIONS
• Simplorer for motor-controller tuning
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The CREATE (CREATE), housed in the Fenn College of Engineering at Cleveland State University, constitutes a collaboration between universities, government, industry, and other organizations with the purpose of advancing the state of the art of aerospace power-system technologies.
THE NEED
To develop the simulation model of a one-degree-of-freedom (1 DOF) reaction wheel and its controller
THE SOLUTION
Simplorer®
One of the complex systems of a satellite is the attitude control subsystem. One technique for providing attitude control of a satellite is the use of reaction wheels-torque motors with high-inertia rotors that can spin in either direction and provide one axis of control for each wheel.
The reaction wheels control the attitude through internal torques caused by the rotation of the wheels. The difference in angular velocity of two counter rotating reaction wheels can provide the change in satellite axis' angular momentum.
At a recent Ansoft Aerospace Power & Electronics Simulation Workshop, Bhanu Gouda, Brian Fast, and Dan Simon, of Cleveland State's CREATE, outlined various methods for attitude control using reaction wheels. The CREATE team used Simplorer to develop the simulation model of a 1 DOF reaction wheel and its controller.
The simulation of a modified PI controller and Active Disturbance Rejection Control (ADRC) showed that ADRC worked well for the system. In future work, CREATE will extend the 1 DOF problem to three-degrees-of-freedom (3 DOF), implement the controller design in the microcontroller/FPGA microchip, and compare with other controllers.
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