Adaptability of Wind Power Integration and Comparison Study on Grid Code Technical Requirements

Wind power is a mainstream of renewable energy power generation. With its increasing capacity in power grid, it is very urgent to study the technical requirements and adaptability of wind power integration. To ensure the safe and steady operation of network and improve the adaptive ability, investigations on wind power integration have been made by system operators of countries and the grid codes for wind farms have also been issued. Based on the adaptability of wind power integration, this paper reviews the international grid code technical requirements for wind farms, especially focus on the comparison study of low voltage ride through (LVRT), power control and operating adaptability, and confirms the formulating principle and specific index differences of international grid codes. Finally, the new issues that may be caused by large-scale wind power integration are explored and some suggestions are proposed from the perspective of mutual adaptability between wind farms and power system, which will make a certain reference value for further improving grid code technical requirements.