Research on The Cascaded Fast Power Control System For Renewable Generations

The power electronic based photovoltaic power generation, wind turbine and other renewable power generation systems have the potential of millisecond level power control. Based on the analysis on the demands of fast power control in grids with high renewable generation penetration, this paper proposes the structure of fast renewable energy power control system. The information transmission delay, MCU processing delay and the MPPT tracking delay are analyzed. A novel algorithm is implemented to enable the renewable power generations to quickly respond to the control commands from the power grid and realize rapid bi-directional power adjustments. The proposed methods could participate in the primary frequency and voltage regulation in the power grid.