One of the most up-and-coming multilevel converters are the Modular Multilevel Converters (MMCs) due to its simple structure which can be adapted to wide range of voltage levels. Nevertheless, one the main disadvantages of MMC is the presence of the circulating current which reduces the efficiency. With a view to overcome this problem, this paper proposes an approach to control and reduce the circulating current based on repetitive controllers. The repetitive controller is described and adapted to minimize the circulating current. In addition, experimental results in a MMC prototype have been carried out to validate the controller.