在双馈电机稳态数学模型的基础上，建立了变速恒频风电机组并网运行稳态数学模型。
On the basis of steady state model of doubly-fed machine, steady state model of VSCF wind turbine for intergration analysis is established.
在详细分析偏航控制系统控制要求的基础上，采用单片机89c51作为主控单元，设计了风电机组的偏航控制系统。
On the basis of analyzing the control process completely, the thesis designs yaw control system for WTGs using 89c51 single-chip computer as a main control unit.
本文在分析低风速风能利用策略的基础上，认为设计适合低风速发电的大型风电机组是必要的。
On the basis of studying how to use wind energy of low wind speed, a conclusion was drawn that design a large wind turbine which is suitable to generate electricity by low wind speed is essential.
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