Frequency Stability Analysis of a Dynamic Wind Park in an Integrated Power Grid

Abstract

In spite of rapidly growing wind power capacities, wind power still only accounted for a small fraction of the electric power supply in the last years. Therefore, research in the area of wind power was mostly focused on the wind generators and wind parks themselves, aiming to maximize their efficiency and stability. But as the weight of wind power grows, their influence on power systems cannot be neglected anymore. That is why recent research like [1], [2] or [3] studies the effects that wind parks have on the dynamic power grids they are connected to. Continuing in this direction, we implement a simulation model of a power grid including a wind park and study its dynamic behavior with varying wind speed. The influence of certain parameters like transmission line length, rated power of the wind park or control depth on the frequency stability in the power system are studied and analyzed. Furthermore, a control scheme to integrate the wind park into the grid frequency control is implemented.