A Practical Small Satellite Variable-Speed, Control Moment Gyroscope for Combined Energy Storage and Attitude Control

Richie, D.; Lappas, Vaios; Prassinos, George

doi:10.2514/6.2008-7503

Cited by 8 publications

(3 citation statements)

References 1 publication

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“…A control moment gyro (CMG) is a common inertial actuator in existing satellites (Richie et al, 2009). The control precision of the CMG directly affects the stability of the satellite.…”

Section: Introductionmentioning

confidence: 99%

Multi-order repetitive controller for harmonic current suppression in magnetically suspended rotor system

Cui

Zhou

et al. 2020

Journal of Vibration and Control

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Repetitive controllers are widely used in rotor systems of magnetically suspended control moment gyro, which are responsible for suppressing harmonic current because of sensor runout and mass imbalance of the rotor. However, the rotation frequency of the rotor is not constant in industrial applications, and it is likely to fluctuate around the rotation frequency, which greatly affects the suppression effect of the repetitive controller on harmonic current. This article proposes a new repetitive control method with strong frequency robustness, which still has high suppression accuracy when the rotation frequency is fluctuant. This method is simulated and verified on the magnetically suspended rotor system, which has achieved better results than previous research.

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“…A control moment gyro (CMG) is a common inertial actuator in existing satellites (Richie et al, 2009). The control precision of the CMG directly affects the stability of the satellite.…”

Section: Introductionmentioning

confidence: 99%

Multi-order repetitive controller for harmonic current suppression in magnetically suspended rotor system

Cui

Zhou

et al. 2020

Journal of Vibration and Control

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“…For this reason, VSCMGs are often utilized in the design of integrated power and attitude control systems (IPACS) [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12]. However, the energy storage and attitude control capabilities of VSCMGs can deteriorate over time due to changes in the dynamics such as bearing degradation and increased friction in the gimbals or wheels [13].…”

mentioning

confidence: 99%

Precision IPACS in the presence of dynamic uncertainty

Kim

MacKunis

Fitz-Coy

et al. 2009

Proceedings of the 48h IEEE Conference on Decision and Control (CDC) Held Jointly With 2009 28th Chinese Control Conference

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An adaptive robust integrated power and attitude control system (IPACS) is presented for a variable speed control moment gyroscope (VSCMG)-actuated satellite. The developed IPACS method is capable of achieving precision attitude control while simultaneously achieving asymptotic power tracking for a rigid-body satellite in the presence of dynamic uncertainty in the VSCMG gimbals and wheels. In addition, the developed controller compensates for the effects of uncertain, time-varying satellite inertia properties. Some challenges encountered in the control design are that the control input is premultiplied by a non-square, time-varying, nonlinear, and uncertain matrix and is embedded in a discontinuous nonlinearity. Globally uniformly ultimately bounded attitude tracking and asymptotic power tracking results are proven via Lyapunov stability analysis.

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“…This additional degree of freedom allows each device to perform singularity escape on its own, or even store power. 3 Although at least one prototype has been made 10 , VSCMGs remain largely experimental. Additionally, they are even more complex in terms of both hardware and control software implementation, have higher power requirements, and induce vibrations.…”

Section: Med Combined Controlmentioning

confidence: 99%

Control of a Spacecraft Using Mixed Momentum Exchange Devices

Currie

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A Practical Small Satellite Variable-Speed, Control Moment Gyroscope for Combined Energy Storage and Attitude Control

Cited by 8 publications

References 1 publication

Multi-order repetitive controller for harmonic current suppression in magnetically suspended rotor system

Multi-order repetitive controller for harmonic current suppression in magnetically suspended rotor system

Precision IPACS in the presence of dynamic uncertainty

Control of a Spacecraft Using Mixed Momentum Exchange Devices

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