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Simulative Research on a Modified VSM Control Scheme for Respecting DC-Side Active-Power Limitations
This thesis presents and examines a novel approach to modify the active-power behaviour of a generic virtual synchronous machine (VSM) in order to respect DC-side active-power limitations of converter-coupled generation and loads, thereby enabling them to participate in instantaneous reserve without hardware reinforcements. A modification to the VSM control is suggested, which consists of a ∆P feedback loop and a dynamic adaptation of the virtual impedance Xvirt. These mechanisms enable the VSM to have a RoCoF-dependent ...