During the "Twelfth Five-YearPlan" period, the team and Sungrow Power jointly undertook the"Twelfth Five Year" National
Science and Technology Support ProgramProject - "7MW Wind Power Converter and Control System IndustrializationKey Technology R&D (2012BAA01B04)", which was adopted by the project.The medium-voltage three-level permanent magnet
converter design, in January 2016, the product passed the technical test of Xiangdian Wind Energy,and passed the Zhangbei Wind Farm site in February 2017.

Figure 5MW medium-voltage three-levelpermanent magnet synchronous wind power converter that is being tested byXiangdian Wind Energy