W. Gil-González, O. Montoya, A. Garcés, A. Escobar-Mejía
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Supervisory LMI-Based State-Feedback Control for Current Source Power Conditioning of SMES
This paper presents a state feedback control via linear matrix inequalities (LMI) applied to the control of superconducting magnetic energy storage (SMES) systems which improve the stability of the grid. The SMES is integrated to the grid by a three-phase pulse-width-modulated current-source converter (PWM-CSC) which supports active and reactive power. This type of converter is convenient for this application due to its intrinsic current characteristics. The proposed control shows a fast dynamic response which suitable for the requirements of power system stability applications. Three type of operating states are considering namely normal, transient and restorative. Simulation results demonstrate the robust and efficient performance of the proposed control in each of these operating states.
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