Event-Triggering Virtual Inertia Control of PV Systems With Power Reserve

Grid frequency support, e.g., by the virtual inertia control (VIC), of photovoltaic (PV) systems, is more demanded than ever before. To achieve full-range support (i.e., to tackle under- or overfrequency issues), power reserve necessary for PV systems. Accordingly, a (PRC) method based on maximum point tracking (MPPT) adopted in this article, referring as MPPT-PRC. It measures real-time available (MAP) periodically, being independent physical sensors and burdensome computation. However, MAP measurement loop inevitably couples with loop, which makes realization VIC challenging. Aiming at issue, an event-triggering strategy elaborately designed switch system in-between different operating modes. The realized set signals. They are responsible detection incidents, activation MPPT, MAP, respectively. Consequently, can be achieved MPPT-PRC without any conflicts instability. Experimental tests performed StarSim hardware-in-the-loop validate proposed MPPT-PRC-based VIC, well coordination loops.