Abstract:After the large-scale wind power base connected to the power grid, huge risks were brought to the dispatching operation of the power system due to the energy loss and unplanned downtime of the unit caused by iced wind turbine blade, the safe and stable operation of the power grid was seriously affected. The air flow field was acquired based on k-ε model in this text, the move trajectories of the supercooled water droplets was calculated by adopting the Lagrange method, then the local impact factor for each control unit of the wind turbine blade surface was obtained. The controled ice mass was solved by using the mass balance and energy balance equation, and the process of blade ice was simulated by combining with the ice time propulsion method; It provides effective prediction for the ice of the blade,Finally, the 3d iced blade model was built, and the influence on the blade torque for different radial thickness of ice was calculated by using the fluent software. it is of great significance to the safe, stable and efficient operation for the power grid.
郝艳捧, 刘国特, 阳林, 陈彦, 李立浧. 风力机组叶片覆冰数值模拟及动载荷特性研究[J]. 电工技术学报, 2015, 30(10): 292-300.
Hao Yanpeng, Liu Guote, Yang Lin, Chen Yan, Li Licheng. Study on Ice Numerical Simulation and Its Power Loss Characteristics for the Blades of Wind Turbine. Transactions of China Electrotechnical Society, 2015, 30(10): 292-300.
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