Sun tracking controller for UKube-1 using magnetic torquer only*

Kim, Jongrae; Worrall, Kevin

doi:10.3182/20130902-5-de-2040.00126

Cited by 17 publications

(4 citation statements)

References 13 publications

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“…As to Ref. [18][19][20], the proposed sun-pointing control schemes combined PD control technique and spin motion, which could achieve sun-pointing effect. However, these schemes are designed according to engineering experience, and no literature has proposed the controllability and stability proofs of the attitude control schemes.…”

Section: Introductionmentioning

confidence: 99%

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Sun-Pointing Attitude Control Scheme for Magnetic-based Satellite

Xia

Zhang

Jiang

2021

Preprint

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For some low-orbit satellites, SADA (solar array drive assembly) is not necessary but steady sun-pointing is required. Magnetic-based attitude control schemes are adopted by more and more low-cost low-orbit satellites and magnetic-based sunpointing attitude control schemes have been proposed for various satellites. For magnetic Attitude Determination and Control System (ADCS), magnetometer and magnetic torquer are the core ADCS components while sun sensor and gyro, which would be employed to determine or estimate sun vector, are important ones. Due to the underactuated characteristics, magnetic attitude control torque could not stabilize the full attitude but the two components of the attitude, simultaneously, which means that magnetic attitude control effort could orientate the solar panels to the Sun. A Lyapunov function, combining the rotational energy and sun angle, is formulated and a PD-type sun-pointing attitude control scheme is proposed to meet the requirements corresponding to sun-pointing task. Further, the effectiveness of the PD-type sun angle-based magnetic attitude control scheme, composed of proportional term, damping term and spinning term, has been verified by use of Lyapunov direct method. Simulations show that, the proposed PD-type attitude control scheme is a suitable sun-pointing scheme for magnetic satellites.

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Section: Introductionmentioning

confidence: 99%

“…In Ref. [20], the photo-current is feedback to the attitude control law and the desired torque is composed of damping torque, sun-pointing control torque and spinning torque. In Ref.…”

Section: Introductionmentioning

confidence: 99%

Sun-Pointing Attitude Control Scheme for Magnetic-based Satellite

Xia

Zhang

Jiang

2021

Preprint

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“…These programs offer participants unique opportunities providing hands-on experience [2,3]. Because of these advantages and the increasing adoption in the fields of scientific investigation, military, and technology demonstration, cube satellites are also attracting attention from industries and space-research organizations across the world [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Feasibility of Using a Fresnel Lens as a Solar-Energy Collection System for Enhancing On-Orbit Power Generation Performance

Park

Jung²,

2017

International Journal of Aerospace Engineering

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Cube satellites have a limitation for generating power because of their cubic structure and extremely small size. In addition, the incidence angle between the sun and the solar panels continuously varies owing to the revolution and rotation of the satellite according to the attitude control strategy. This angle is an important parameter for determining the power generation performance of the cube satellite. In this study, we performed an experimental feasibility study that uses a Fresnel lens as a solar-energy collection system for cube satellite applications, so that the power generation efficiency can be enhanced under the worst incidence angle condition between the sun and solar panels by concentrating and redirecting solar energy onto the solar panels with a commercial Fresnel lens. To verify the effectiveness of the proposed system, we conducted a power-measurement test using a solar simulator and Fresnel lenses at various angles to the light source. In addition, we predicted the on-orbit power-generation enhancement achieved by employing the solar-energy collection system with various attitude control strategies.

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“…A cubesat's orbit cannot be changed in space however its attitude can be controlled using reaction wheels or any other actuators such as magnetotorquers or small thrusters [2,3]. In satellite communications, the attitude control is the term used to describe the orientation of the satellite in relationship to Earth and Sun [4,5]. Its orientation may require some control actions despite of there is no move and change in placement of Cubesat.…”

Section: Introductionmentioning

confidence: 99%

Attitude Control of Cubesat in Single Axis by Fuzzy Logic Controller

Nazlibilek¹,

Kilickaya²,

Tanyer³

2017

Proceedings of the 4th International Conference of Control, Dynamic Systems, and Robotics (CDSR'17)

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-Over the last two decades, satellites are getting smaller with increasing capabilities for space research. Small satellites (between 1 and 15 kg) show great promise as a low-cost option both in production and launching. In this work, attitude control problem for a cubesat is examined. A physical testbed is designed for simulation and testing in a single axis. Cubesat reaction wheel and the testbed are integrated, and fuzzy logic control software in Arduino Mega microprocessor environment is developed. The cubesat floor at the same axis of reaction wheel is tested and real-time measurement data are obtained.Step response and ramp response behaviours are analysed.

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Sun tracking controller for UKube-1 using magnetic torquer only*

Cited by 17 publications

References 13 publications

Sun-Pointing Attitude Control Scheme for Magnetic-based Satellite

Sun-Pointing Attitude Control Scheme for Magnetic-based Satellite

Experimental Investigation on the Feasibility of Using a Fresnel Lens as a Solar-Energy Collection System for Enhancing On-Orbit Power Generation Performance

Attitude Control of Cubesat in Single Axis by Fuzzy Logic Controller

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