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1. 发明公开

EP0604585A4 EP0604585A4 - 失效
标题翻译： EP0604585A4 - Google专利
公开(公告)号：EP0604585A4
公开(公告)日：1994-08-31
申请号：EP92921017
申请日：1992-09-17
申请人： U.S. WINDPOWER, INC.
发明人： HOLLEY, WILLIAM, E.
IPC分类号： H02P9/00 , F03D7/02 , F03D7/04 , H02P9/04
CPC分类号： F03D7/028 , F03D7/0224 , F03D7/0276 , F03D7/042 , F03D7/043 , F05B2260/821 , F05B2270/101 , F05B2270/1032 , F05B2270/20 , F05B2270/32 , F05B2270/329 , F05B2270/335 , H02P9/04 , H02P2101/15 , Y02A30/12 , Y02E10/723
摘要： A controller and method is disclosed for operating a variable speed turbine to better track wind speed fluctuations for greater efficiency in conversion of wind energy to electrical energy. The controller of the invention controls the rotor speed in accordance with a wind speed supplied by a wind observer in order to approximately follow the varying wind speeds. The wind observer predicts the average wind speed at a subsequent point in time over the cross-section presented to the wind by the wind turbine. The average wind speed is applied to a parameter schedule to determine desired values for rotor speed and torque which are used by arotor speed stabilizer to command a reference load torque. The load torque of the generator is controlled in accordance with the commanded load torque, and therefore the desired rotor speed is approximated. During operation, the wind speed prediction process is repeated at each subsequent time interval, and the load torque, and therefore rotor speed, is controlled accordingly. The wind observer calculates the aerodynamic torque and then calculates net torque. The wind speed is predicted as a function of the present (previously predicted) wind speed and correction terms including net torque and the difference between the predicted and actual rotor speed. The wind observer is useful whenever the wind turbine rotor is turning, whether or not it is producing power.
摘要翻译：公开了用于跟踪风速波动以获得更高效率的变速涡轮机（10）的控制器（30）和方法。控制器（30）根据由风力观测器（40）提供的风速来控制转子（22）的速度，以便近似变化的风速。风力观测器（40）预测横截面上的随后时间点的平均风速。数据被应用于确定期望的转子（22）值的参数调度（42）。在接近理想转子速度的位置控制负载转矩。在随后的每个时间间隔重复风速预测以控制负载转矩和转子速度。计算气动扭矩和净扭矩。风速预测基于（先前预测的）风速和包括净转矩的修正项以及预测转速和实际转子转速之间的差值。

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