Patent application number | Description | Published |
20090204266 | System And Method Of Controlling A Wind Turbine In A Wind Power Plant - The invention relates to a central controller adapted for controlling a number of wind turbines. The wind turbines being controlled and monitored by the central controller via a first monitoring and control network and a second monitoring and control network. The term monitoring and control network is in accordance with an embodiment of the invention understood as a data communication network which communicates at least control data for control of wind turbines, but may also communicate monitoring data, i.e. measure data. A typical example of a control of wind turbines is that the central controller sets the power set-point (the power to be produced) of each wind turbine in the wind power plant. The important control signals may be separated from high-bandwidth requiring monitoring data, such as analysis data in the communication network. | 08-13-2009 |
20090281675 | System And Method For Monitoring And Control Of Wind Farms - A wind farm monitoring and control system, includes at least one wind farm, at least one intelligent management server connectable to the at least one wind farm via a data communication network, and at least one wind farm configuration tool related to the intelligent management server for establishment of connection(s) to the at least one wind farm. A system for monitoring and control of wind farms is provided. The monitoring and control is performed so that it is possible to monitor and control several wind farms homogeneously. Hereby it is possible to monitor and control different wind farms simultaneously with a uniform output and it is moreover possible to compare data from the wind farms. | 11-12-2009 |
20100067526 | Method Of Controlling A Wind Turbine In A Wind Power Plant - A method of controlling a wind turbine in a wind power plant, the wind turbine including a wind turbine controller and at least one connected wind turbine component, the wind turbine controller receiving data packets originating from a central controller, at least one of the data packets including instructions, the wind turbine controller performing the followings steps if one of the data packets includes a combined “write/read” instruction:
| 03-18-2010 |
20100268849 | METHOD AND SYSTEM FOR REGISTERING EVENTS IN WIND TURBINES OF A WIND POWER SYSTEM - The invention relates to a method of registering events in a wind power system comprising at least two data processors, wherein the data processors of said wind power system are mutually time synchronized, wherein events are registered in said at least two data processors, wherein the timing of said events registered in different of said at least two data processors is established according to said time synchronization. According to an advantageous embodiment of the invention, events may be registered and preferably analyzed according to a common timing. This analyzing makes it possible to establish an analysis where events of different wind turbines are basically interrelated and where information regarding such interrelation is important or crucial for establishment of control or fault detection based on correctly timed events from different wind turbines. | 10-21-2010 |
20110301769 | CONTROL OF A WIND POWER PLANT - Methods for controlling a wind power plant that includes a plurality of wind turbines being operatively connected to a plant collector grid a power plant controller, a wind power plant, and a computer program product. The method may include generating an actual power reference signal in response to a determination of the power production of the wind power plant and comparing a desired power reference signal with the actual power reference signal. The method may include either applying a first filter characteristic as part of a generation of a wind turbine power reference if the desired power reference signal exceeds the actual power reference signal, or applying a second filter characteristic as part of the generation of the wind turbine power reference if the actual power reference signal exceeds the desired power reference signal. The first filter characteristic is different from the second filter characteristic. | 12-08-2011 |
20120093647 | METHOD AND SYSTEM FOR REGISTERING EVENTS IN WIND TURBINES OF A WIND POWER SYSTEM - Methods of registering events in a wind power system comprising at least two data processors. The data processors of said wind power system are mutually time synchronized. Events are registered in said at least two data processors. The timing of said events registered in different of said at least two data processors is established according to said time synchronization. Events may be registered and preferably analyzed according to a common timing. The event analysis makes it possible to establish an analysis where events of different wind turbines are basically interrelated and where information regarding such interrelation may be important or crucial for establishment of control or fault detection based on correctly timed events from different wind turbines. | 04-19-2012 |
20120243518 | WIRELESS INTERNET-PROTOCOL PHONES FOR WIND POWER PLANT SERVICE - Communications systems and methods for a wind power plant having a plurality of wind turbines. The communications system may include a data communications network configured to provide connectivity between the wind turbines and a wireless access point coupled with the data communications network. The communications method may include wirelessly communicating signals between a mobile communications device and a wireless access point coupled with a data communications network providing connectivity between the wind turbines. | 09-27-2012 |
20130277972 | METHOD OF CONTROLLING A WIND TURBINE IN A WIND POWER PLANT - Embodiments herein control a wind turbine in a wind power plant where the wind turbine includes a wind turbine controller and at least one connected wind turbine component. Upon receiving a packet containing a “write/read” instruction, the wind turbine controller effectuates a write instruction by changing a set point associated with an attribute of a component in the wind turbine. The controller retrieves information data resulting from performing the write instruction from the component and transmits the information data to a central controller. The invention performs a fast and simple control loop by means of transmitting both the write and the read instruction within one single data packet. | 10-24-2013 |
20130290705 | METHOD AND APPARATUS FOR ON-SITE AUTHORISATION - A method for authorisation of a user to access a computer system locally at a site is described. The computer system determines whether a network connection to a remote authentication source is available. If the network connection is available, the computer system authenticates the user by interaction with the remote authentication source. If the network connection is not available, the computer system authenticates the user against a credential provided by the user. In this case, the credential will have been provided by or validated by the remote authentication source less than a predetermined time prior to the authenticating step, and the credential is a certificate issued by a certificate authority already trusted by the computer system and valid for a predetermined period of time. A suitable computer system is also described. | 10-31-2013 |
20130313827 | THERMAL PROTECTION OF ELECTRICAL GENERATING COMPONENTS UNDER CONTINUOUS ACTIVE POWER GENERATION - The present invention relates to systems and methods for maintain the active power production of a fluid turbine and regulating the temperature of an electrical generating component by controlling the reactive power production. A thermal parameter of the electrical generating component is monitored. If the electrical generating component exceeds a thermal parameter the reactive power production of the turbine is reduced. A fluid turbine may be de-rated to further reduce an electrical generating component's thermal parameter. A fluid turbine may shut down to further reduce an electrical generating component's thermal parameter. A fluid turbine's power production is re-started when the electrical generating component returns to an acceptable thermal parameter. | 11-28-2013 |
20140030059 | FLUID TURBINE WITH VARIABLE PITCH SHROUD SEGMENTS - One or more variable pitch airfoils in fluid communication with a rotor of a fluid turbine can control the amount of energy directed to the rotor, and further control the amount of energy generated by the turbine. Varying the pitch of the airfoils may provide a means of controlling the power output of a fluid turbine without the need to control the pitch of the rotor blades, and may further provide a means of mitigating the effects of wind shear on the rotor. Variable pitch airfoils may also include a means of controlling the active power, reactive power and SCADA, of a group of fluid turbines. | 01-30-2014 |