Patent application number | Description | Published |
20090102195 | Wind Farm Capable of Staggered Disconnection - The invention relates to a method of operating a wind farm intended for connection to an electric power network, which wind farm includes at least two wind turbine generator systems (WEA | 04-23-2009 |
20090224543 | Method for the operation of a wind power plant and wind power plant - A method for the operation of a wind power plant ( | 09-10-2009 |
20090261588 | METHOD AND SYSTEM FOR OPERATING A WIND ENERGY INSTALLATION - A method for operating a wind energy installation and a system for implementing the method. An oblique incident flow value, which represents the difference between the wind direction and the direction of a rotor axis of the wind energy installation, and a load value, which represents the load state of the wind energy installation, are determined. A total load value is determined based on the load value and the oblique incident flow value. The rotor rotation speed is reduced when the total load value is above a first limit value. The wind energy installation is shut down when, in addition, a second limit value is exceeded. The method makes it possible to react objectively to oblique incident flows and can reduce a load on a wind energy installation without causing large yield losses. | 10-22-2009 |
20090295161 | METHOD FOR OPERATING A WIND ENERGY INSTALLATION AND A WIND ENERGY INSTALLATION - The invention relates to a method for operating a wind energy installation ( | 12-03-2009 |
20100183440 | METHOD FOR THE OPERATION OF A WIND POWER PLANT - The invention concerns a method for operating a wind power plant (WEA), preferably before or during the performance of maintenance work on the wind power plant (WEA), wherein —at least one physical condition of the surroundings outside the wind power plant (WEA) induced by wind movement outside the wind power plant (WEA) is detected as an external physical condition, and/or at least one physical condition of a component of the wind power plant (WEA) influenced by wind movement outside the wind power plant (WEA) is detected as an internal physical condition; —the at least one external physical condition and/or at least one internal physical condition are evaluated; —the at least one external physical condition is compared with a predetermined reference value for the external physical condition, and/or the at least one internal physical condition is compared with a predetermined reference value for the internal physical condition; —depending on the comparison at least one warning message is generated, in particular a maintenance warning message. | 07-22-2010 |
20110288817 | Method of Servicing Wind Power Plant Using Azimuth Angle - The invention concerns a method for the determination of an azimuth angle for servicing purposes (α | 11-24-2011 |
20120301295 | METHOD FOR OPERATING A WIND ENERGY INSTALLATION - A method for operating a wind energy installation ( | 11-29-2012 |
20130026757 | WIND ENERGY PLANT HAVING A BLADE HEATER - A wind energy plant comprising a rotor having blades and a generator driven by said rotor for generating electric energy. The pitch of the blades can be adjusted and a pitch system for adjusting the pitch angle of the blades is provided, which is supplied by a hub power source. An additional electric load is provided on the hub. A pitch power control device is provided which dynamically distributes the power of the hub power source between the pitch system and the additional electric load and further acts on the pitch system such that the power consumption thereof during high-load operation is reduced. Thus, the power consumption of the pitch system during high-load operation can be reduced and additional power provided for operating the additional load. Even high-performance additional loads, such as a blade heater, can be operated in this way, without having to boost the hub power source. | 01-31-2013 |