Wind Grid Code requirements regarding connection and operation of Wind Turbine in Kosovo

This paper discusses aspects of Kosovo Grid Codes relating to wind turbines. All Generators connecting to the Kosovo Transmission System are required to comply with the Grid Code. The Grid Code was originally developed with conventional synchronous generators. Since Wind Turbine Generators (WTG) don´t have the same characteristics as synchronous generators, it was considered appropriate to develop a new set of Grid Code provisions specifically for Wind Farm Power Stations in relation with specific characteristic of Kosovo Power System. With the high excepted penetration of wind power a simultaneous loss of Wind Farms generation will put in the risk the security and reliability of Power System. Therefore, the main requirements concern the fault ride through capability and frequency operation range of wind turbines. In the case of network faults wind turbines have to supply a definite reactive power depending on the instantaneous voltage and they must return quickly to normal operation.