会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明申请
    • A METHOD FOR OPERATING A WIND TURBINE AT IMPROVED POWER OUTPUT
    • WO2011150931A3
    • 2011-12-08
    • PCT/DK2011/050183
    • 2011-05-31
    • VESTAS WIND SYSTEMS A/SABDALLAH, ImadMIRANDA, Erik Carl LehnskovZAIB, Ali
    • ABDALLAH, ImadMIRANDA, Erik Carl LehnskovZAIB, Ali
    • F03D7/04
    • A method for operating a wind turbine is disclosed. The wind turbine comprises a rotor having a set of wind turbine blades, said rotor being mounted on a tower. The method comprises the steps of: Providing a curve defining optimal pitch angle as a function of tip speed ratio for the wind turbine blades or as a function of wind speed. Modifying at least a part of said optimal pitch angle curve by applying a safety buffer, e.g. at tip speed ratios and/or pitch angles where there is a risk that the blades may stall and/or that overload is caused to the wind turbine, thereby obtaining a safety modified pitch angle curve. Operating the wind turbine in accordance with the safety modified pitch angle curve. Measuring one or more parameters providing information regarding wind conditions and/or loads on one or more components of the wind turbine, during operation of the wind turbine. Adjusting the safety buffer, based on said measurements, thereby obtaining an adjusted pitch angle curve, and operating the wind turbine in accordance with the adjusted pitch angle curve. The safety buffer is applied in order to ensure that the blades of the wind turbine do not stall and/or that the wind turbine is not overloaded, but it has the effect that the wind turbine is operated in a suboptimal manner from an energy production view. Since the safety buffer is adjusted based on measured parameters, it can be reduced if it is detected that the actual operating conditions are less severe than expected. This allows the wind turbine to be operated in a more optimal manner, thereby increasing the energy production of the wind turbine.
    • 9. 发明申请
    • ROTOR BLADE CONTROL FOR HIGH WINDS
    • 用于高风量的转子叶片控制
    • WO2015074664A1
    • 2015-05-28
    • PCT/DK2014/050393
    • 2014-11-19
    • VESTAS WIND SYSTEMS A/S
    • CAPONETTI, FabioCOUCHMAN, IanKRÜGER, ThomasZAIB, AliTHOMSEN, Carsten Nørlund
    • F03D7/02
    • F03D7/0264F03D7/0224F03D9/255F05B2270/3201F05B2270/322H02J11/00H02K7/183Y02E10/723Y02E10/725
    • The invention relates to a control apparatus and method for controlling the rotor blades of a wind turbine, and in particular to controlling the rotor blades during an extreme wind event. An extended mode of operation of the wind turbine rotor beyond the cut-out wind speed is provided. In the extended mode of operation, the pitch of the wind turbine blades is actively controlled so that the rotor and the generator idle at a designated rotational speed. The rotational speed may be relatively high, say 15 to 20% of the nominal speed, compared with minimal speeds experienced by purely feathered wind turbine blades, and may be further controlled as a function of the incident wind speed. Output power control in the extended mode may be zero but is preferably a low, but non-zero value. The output power so produced may then be used as an auxiliary power source for controlling the wind turbine in situations where the utility grid fails.
    • 本发明涉及一种用于控制风力涡轮机的转子叶片的控制装置和方法,特别涉及在极端风力事件期间控制转子叶片。 提供了超出切断风速的风力涡轮机转子的延长操作模式。 在扩展操作模式中,主动控制风力涡轮机叶片的桨距,使得转子和发电机以指定的转速空转。 与纯羽毛风力涡轮机叶片所经历的最小速度相比,旋转速度可能相对较高,例如额定速度的15至20%,并且可以作为入射风速的函数进一步控制。 扩展模式下的输出功率控制可以为零,但优选为低但非零值。 这样产生的输出功率然后可以用作在公用电网故障的情况下控制风力涡轮机的辅助电源。