Simulations and field-test of inertia control technology on doubly-fed induction generator

The increasing penetration of large-scale wind generator in power system brings the system total moment of inertia decrease and makes the region power system under threat. How to make the turbine with the ability of the controllable inertia response gradually aroused people's attention. This paper firstly proposed two different inertia control strategies on the basis of the main control strategy, using frequency rate or frequency deviation as input. The results of the two are compared and analysis on SIMULINK, and found out using frequency deviation as input is more conform to the requirements of the grid. At last, the inertia control strategy using the frequency deviation as input was carried out on the 2MW prototype, proved the doubly-fed induction generator(DFIG) do have effective inertia response.