Short-Term Frequency Stability Regulation for Power System with Large-Scale Wind Energy Penetration Using PID Controller

Energy storage schemes play important role in stabilizing grid frequency, specifically, with high wind power penetration. In this paper, different controller types have been used to adjust the flow of storage power through an appropriate power converter. Step response is studied for PI, PID, and non-linear PID controllers to define proper controller for short-term frequency stability support. A conventional generator emulator is proposed. PID controller shows significant improvement in frequency behavior of studied cases.