RCCN WeChat QrCode
Mobile WebSiteBasic research supports the entire industrial chain of wind turbine equipment
"One of the major challenges of wind turbine control is that the wind as a form of primary energy has unstable characteristics, and the wind direction and wind speed are in a variable state. The wind turbine control system should be designed to adapt to this instability, such as The wind field in the mountain will often cause over-speed failure of the wind turbine or frequent yaw of the wind due to the rapid change of wind speed and wind direction, which affects both the safe operation of the unit and the power generation. On the other hand, the wind turbine is affected as a huge rotating equipment. The impact of the load is very complicated. In order to overcome the impact and fatigue load, the wind turbine body components, the tower and the foundation must have sufficient strength. How to achieve accurate load control and find the best balance between cost and safety is also a Important topics.” Feng Jian said that in this regard, key laboratories use simulation and testing techniques to continuously explore and finally find solutions.
Especially worth mentioning is that the laboratory has undertaken the 863 project of the Ministry of Science and Technology - "Study on the design technology of super large superconducting offshore wind turbines", which is the first project involving the design of wind turbines above 10MW in China. Key scientific and technological projects during the Second Five-Year Plan period. Considering the characteristics of the target unit's 12MW super capacity, the project adopts the technical route of superconducting direct-drive generator, the design efficiency of the generator reaches 96%, and the weight-to-weight permanent magnet synchronous generator loses more than 30%. At the same time, considering the unit's characteristics of “super large capacity” and “offshore wind power”, the project also completed the high reliability design of offshore wind turbines, with the goal of achieving annual planned maintenance and minimizing unplanned downtime of the unit. In the design of the main control system, a series of innovative new technologies based on support vector machine technology and gust judgment and advanced monitoring system design are adopted. These achievements will significantly improve the design level of wind turbines in China, and make the innovation capability and international competitiveness of China's wind turbine design leap to a new level.
