In order to strengthen its research capabilities, enhance its core competitiveness in the domestic and international markets, and promote sustainable development, Sinovel has attracted renowned experts and scholars in wind power from home and abroad, and has established its technical R&D center with a team of more than 800 technical engineers with rich experience in the design and development of wind turbines. The Center covers a wide range of disciplines, such as aerodynamics, numerical analysis, machinery, hydraulic pressure, electric systems, automatic control, and software development. The Center has developed the 1.5MW, 3MW, 5MW and 6MW series of grid-friendly and internationally advanced wind turbines, which are adaptable to various wind and environmental conditions. Each of the above models meet all the requirements for grid integration and the grid codes of different countries, such as high/low voltage ride-through technologies, wind turbine model checking, and active/reactive power managing technologies. Moreover, each wind turbine model has been tested and certified by relevant inspection bodies.