Validation of a DFIG wind turbine model submitted to two-phase voltage dips following the Spanish grid code

In a number of countries where large penetration of wind generation has been developed, the increased impact of wind energy generation on power grid operations has led to the development of grid codes, with the aim of integrating this source of energy without compromising the stability of their networks. In Spain this grid code is named the Procedure of Operation for fault ride-through capability of the Spanish national grid code —PO 12.3—. To verify the fulfillment of this grid code, it has also been defined a procedure for measuring and evaluating the response of wind turbines and wind farms submitted to voltage dips —Procedure for verification, validation and certification of the requirements of the PO 12.3 on the response of wind farms in the event of voltage dips (PVVC)—.In this paper, two-phase voltage dips that comply with the requirements of the PVVC, has been applied to a Gamesa G52 with a Dip Active Converter. The measured tests are compared with the simulation of a PSCAD model of the wind turbine to verify the fulfillment of the PVVC validation process and the results obtained are presented.

► The general model verification process of the Spanish PVVC has been followed.
► A real wind turbine submitted to two-phase voltage dips has been validated.
► The results have shown good agreement between computed and measured values.
► Key aspects of verification, validation and certification processes are highlighted.
► The modification of certain requirements in editions of PVVC is justified.