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中文摘要：
针对风能转换系统（WECS）执行器故障问题，建立分析了风能转换系统的状态方程，将风能转换系统中执行器连续增益故障转化成传动系统参数的不确定性，推导了风能转换系统的T-S模糊模型．采用状态反馈并行分布补偿结构，设计了风能转换系统执行器发生故障时的鲁棒容错控制器，并进行了稳定性证明．仿真结果表明，在风能转换系统发生执行器故障时，系统仍能够实现额定风速以下的最大风能捕获，减缓了故障恶化的程度，提高了机组利用率．
英文摘要：
For the actuator fault of wind energy conversion system （WECS）, the state equation of WECS is designed and analyzed. Continual gain actuator faults of system are converted into the parameter uncertainties of driving system, and then the T-S fuzzy model of the system is deduced. Adopting state feedback of parallel distributed compensation structure, considering system actuator fault, a robust fault-tolerant controller is designed, and the system stability can be proved. The simulation results indicate WECS with actuator fault can also achieve maximum wind energy capture below the rated wind speed, the degree of fault deterioration is slowed down, and the utilization rate of the wind turbine is also improved.
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