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A generalized control law for uniform, global and exponential magnetic detumbling of rigid spacecraft

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Nicolas Petit

Résumé

The problem of magnetic detumbling, also known as magnetic momentum unloading, is considered. The objective is to stabilize a rigid spacecraft angular velocity to zero only through magnetic actuation, i.e. magneto-torquers. We propose a generalized control law that is uniformly, globally exponentially stabilizing (UGES) and show that the celebrated b-dot law is one particular case of this law. Furthermore, we provide an explicit (time-varying) strict Lyapunov function to establish the stability claim.
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Dates et versions

hal-03021760 , version 1 (24-11-2020)

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  • HAL Id : hal-03021760 , version 1

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Nicolas Petit, Ioannis Sarras. A generalized control law for uniform, global and exponential magnetic detumbling of rigid spacecraft. IFAC 2020 World Congress, Jul 2020, Virtuel, Germany. ⟨hal-03021760⟩
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