About 33 results
https://drivepatents.com/patents/972109 · 23 Jul 2014
Methods and arrangements for controlling the reactive power of a power generator from an initial reactive power state to a desired reactive power state are disclosed. The power generator belongs to a power farm coupled to an electrical grid. During a trans...
https://drivepatents.com/patents/978692 · 12 Feb 2014
An object is to rapidly recover from a voltage drop in a power grid. When the value of a grid voltage detected by a grid voltage detection unit (22) has fluctuated so as to satisfy a condition set in advance for a reference value, a control device (19) con...
https://drivepatents.com/patents/978784 · 5 Feb 2014
It is described a wind park control system (101) for controlling a reactive power output of a plurality of wind turbines (105, 106, 107) of a wind park (100), wherein the wind park is adapted to deliver active power and reactive power to a utility grid (41...
https://drivepatents.com/patents/980123 · 1 Jan 2014
The method involves detecting at an entry point of the submarine cables (8,10). The maximum permissible current for the submarine cables are determined in response to a given value of the temperature parameter in a reference point located in a given depth ...
https://drivepatents.com/patents/981991 · 13 Nov 2013
It is described a method for controlling a wind turbine (101) connected to a node (127) connected to a utility grid (129), wherein to the node a plurality of other wind turbines (102) is connected, the method comprising: measuring a quantity (134, 135, 136...
https://drivepatents.com/patents/982495 · 30 Oct 2013
A stabilizer system (182) associated with a power converter controller (44) is described. The stabilizer system includes a regulator stabilizer (186) configured to receive a phase locked loop (PLL) error signal (190) and to generate a regulator stabilizati...
https://drivepatents.com/patents/989106 · 3 Jul 2013
A reactive power controller 222 for controlling reactive power in a wind farm grid connected to a utility grid and including at least two sub-grids and a collector portion is provided. At least one wind turbine 100 is connected to each sub-grid, wherein th...
https://drivepatents.com/patents/993386 · 30 Jan 2013
A control system 400 for a power plant 100, 101 is provided, wherein the power plant includes a medium voltage (MV) power line 30. The control system is configured to influence actual high voltage (HV) characteristics of an HV power line 20 at a point-of-i...
https://drivepatents.com/patents/995091 · 12 Dec 2012
It is described an arrangement (100) for generating a control signal for controlling a power output of a power generation system, in particular a wind turbine, wherein the power output is supplied to a utility grid. The arrangement comprises a first input ...
https://drivepatents.com/patents/998625 · 5 Sep 2012
A control device of a wind turbine generator capable of controlling an active power based on an instruction value, includes a measurement means configured to measure a frequency of a utility grid. The instruction value for controlling the active power is g...