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This paper addresses the robust attitude control for an uncertain flexible spacecraft with disturbances bounded by ellipsoids. An observed-state feedback is designed using the so-called invariant ellipsoid method, which is based on the local invariant set theorem. The minimum invariant ellipsoid can be considered as the influence of the uncertainties and disturbances in the controlled system. All...
The robust stabilization of the angular position of a spacecraft with dynamic elastic elements under dissipative properties is proposed. The control scheme is based on bang-bang control and linear output feedback. The former is based on minimum-time optimal control and the latter is designed with the invariant ellipsoid method. The control is achieved under uncertainty in the system and disturbances...
The robust output stabilization problem for a class of uncertain nonlinear systems with disturbances is considered. The suggested control scheme as well as the observation algorithm are based on the invariant ellipsoid method, which allows to obtain the robust linear feedback as a solution of the special linear optimization problem with bilinear constraints. The methods for solving this optimization...
As photovoltaic systems proliferate on grids, larger numbers of inverters will be interconnected with each other through their host utility. This becomes especially true if string inverters (SIs) or AC module ldquomicroinvertersrdquo are used. It will thus become increasingly important to ensure that the islanding detection methods used are effective in this so-called ldquomulti-inverter caserdquo...
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