Strategy for enhancing photovoltaic power plant system inertia through de-loading control
Keywords:De-loading, Droop control, Inertia emulation, MPPT, PV, RES
Currently, to solve the problem of global warming as well as the shortage of energy, countries around the world have increased the use of renewable energy sources, especially solar energy. Photovoltaic Power Plants have variable output power depending on weather factors and do not contribute inertia, making it difficult to operate the power system. Besides, they are often controlled to operate with maximum power point, resulting in these generators not having the reserve power to stabilize the frequency of the grid when there is a power imbalance. This paper proposes a control strategy to improve grid inertia through de-loading control for photovoltaic power plants combined with the droop control and inertia simulation method to support inertia for the grid. Matlab/Simulink software is used to simulate and evaluate the effectiveness of the proposed strategy.
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