1.School of Power Engineering, South China University of Technology, Guangzhou 510640, China;2.Guangdong Key Laboratory of Clean Energy Technology, Guangzhou 510640, China

As wind power is widely integrated into transmission systems and distribution systems in centralized and distributed forms, it is a new challenge how to implement the coordinated economic dispatch of integrated transmission and distribution systems to ensure the economy and security of the whole system considering the uncertainty of wind power outputs. In this paper, firstly, a robust economic dispatch model of integrated transmission and distribution systems considering the wind power uncertainties is proposed, and a polyhedral uncertainty set is adopted to describe the uncertainty of wind power outputs. Secondly, under the framework of the column and constraint generation (C&CG) algorithm, a distributed algorithm based on Lipschitz dynamic programming and analytical target cascading is proposed for the C&CG master problem and C&CG sub-problems, respectively, to ensure the relative independence of information between the transmission system and distribution system. Finally, the simulation is carried out on a small integrated transmission and distribution system and an actual integrated transmission and distribution system. The results verify the correctness and effectiveness of the proposed algorithm.