Attitude control actuator scaling laws for orbiting solar reflectors

Viale, Andrea; McInnes, Colin R.

doi:10.1016/j.asr.2022.10.015

Cited by 7 publications

(5 citation statements)

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“…Quantum dot solar cells are an upcoming technological advancement that uses semiconductor particles called quantum dots to absorb and convert solar energy into electrical power. The capability to change the band gaps of quantum dots enables exact modification of their light absorption characteristics, hence increasing their capacity in collecting light energy [14]. Quantum dot solar cells demonstrate considerable potential in achieving substantial levels of energy conversion efficiency.…”

Section: Solar Energy Technologiesmentioning

confidence: 99%

A Review on Next-Generation Solar Solutions: Pioneering Materials and Designs for Sustainable Energy Harvesting

Praveena,

Jain,

Arun

et al. 2024

E3S Web Conf.

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As an essential initial step towards clean and sustainable energy, this research focuses on innovative materials and structural designs for maximizing solar energy conversion and harvesting. Modern solar thermal and photovoltaic system technologies and supplies are examined to show how alternative electricity has become less expensive and more sustainable. The primary focus is on complex ideas like multiple junctions and tandem solar cells, which increase the efficiency of single-junction systems. The review paper investigates innovative solar power storage solutions, involving battery technology and energy storage materials, to meet the increasing need for secure and easily available sources of clean energy. The research paper explores the technology and uses of flat plate collectors, tube collectors, and solar power plants and how those are used in residential and commercial solar thermal systems. Solar energy conversion efficiency and sustainability will improve with innovations in materials and architecture. Building-integrated photovoltaics (BIPV) is one of the easiest solar system architectures that can be integrated into any residential or commercial building. Quantum dot solar cells, photovoltaic (PV) solar energy frameworks, such as CIGS thin-film solar cells, and organic photovoltaics (OPVs). Organic photovoltaics are portable and lightweight but have a low energy conversion rate, whereas quantum dot solar cells have a high energy conversion rate but face fabrication challenges.

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Section: Solar Energy Technologiesmentioning

confidence: 99%

A Review on Next-Generation Solar Solutions: Pioneering Materials and Designs for Sustainable Energy Harvesting

Praveena,

Jain,

Arun

et al. 2024

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…Figure 5 illustrates the peak angular acceleration required during the tracking (black line) and reorientation (blue line) phases as a function of the orbit altitude (see Ref. [34] for additional details). Also shown are the equivalent gravity gradient and solar radiation pressure peak angular accelerations.…”

Section: Reflector Attitude Controlmentioning

confidence: 99%

“…Alternatively, as proposed in Ref. [34], a pair of CMGs could be appended at the top of two booms normal to the reflector, as shown in Fig 6 . It can be shown that if the wheel mass is 1/24 of the reflector mass (neglecting the boom mass), the inertia of the reflector about the three Fig. 5.…”

Section: Reflector Attitude Controlmentioning

confidence: 99%

“…However, it can be shown (see Ref. [34]) that due to the fourth-power inertia scaling, the required sliding mass would exceed the reflector mass to meet the slew requirements of a 1000 km altitude orbit. Effectively, reflectors larger than 10 m cannot be controlled via SRP, given the slew accelerations required [34].…”

Section: Reflector Attitude Controlmentioning

confidence: 99%

“…However, as shown in Ref. [34], the required mass of wire would be comparable to reflector mass, thus making this alternative again less attractive than control moment gyros. Moreover, the torque direction is affected by the direction of the local magnetic field, therefore multiple current loops with variable orientation would be required to ensure full 3axis control.…”

Section: Reflector Attitude Controlmentioning

confidence: 99%

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