Automatic generation control for grid stabilization in coordination with integrated renewable energy sources

Abstract

The power systems ensure stable and safe operation by keeping a consistent equilibrium between power generation and load demands. The equilibrium, as mentioned earlier described has to be kept up to hold the frequency of the network within the appropriate limits as defined by the grid codes. In real-time operation, a constant variation in the load demand frequently produces a relative balance between the load and generation. This relative balance always influences the system frequency and subsequently affects the security of the power system operation. The power systems integrate increasing levels of variable renewable energy assets, particularly solar and wind energy, in the electric power mix. Many winds and solar power systems exist throughout the world and supply a significant portion of energy to the networks. Because variable renewable energy generation is variable and uncertain, power systems with increasing allocates of unpredictable renewable energy require more flexibility to balance electricity supply and demand at all timescales. One measure of power grid reliability is the stability of a system s frequency at the desired level. This research also addresses the impact of wind and solar power production on the Automatic Generation Control (AGC) system of a two-area multi-source restructured power system. newline