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Wind park control system

A technology for control systems and wind farms, applied in the control of wind turbines, wind power generation, wind motor combination, etc.

Active Publication Date: 2014-02-12
SIEMENS GAMESA RENEWABLE ENERGY AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All wind turbines contribute electrical losses to the overall system, however, some wind turbines contribute more electrical losses than others

Method used

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Embodiment Construction

[0037] The legends in the figures are schematic. It should be noted that in different figures, similar or identical elements are provided with the same reference numerals.

[0038] figure 1 A wind farm 100 is shown. The wind park 100 comprises a wind park control system 101 and a plurality of wind turbines 105 , 106 , 107 . A wind park control system is adapted to control reactive power output of said plurality of wind turbines. The wind farm can deliver real and reactive power to a utility grid (not shown).

[0039] The wind farm control system includes a determination unit 102 , a calculation unit 103 and an adjustment unit 104 . The determination unit 102 is adapted to determine the total amount of reactive power required by the utility grid. The determination unit is further adapted to determine for each wind turbine an individual amount of reactive power that the wind turbine can deliver.

[0040] The computing unit 103 is adapted to a computing capability scheme. ...

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Abstract

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 (417). The wind park control system (101) comprises a determination unit (102); a calculation unit (103) being adapted to calculate a capability scheme, wherein the capability scheme comprises an order for the plurality of wind turbines (105, 106, 107) according to which order the wind turbines (105, 106, 107) are selected for delivering reactive power; and an adjustment unit (104) being adapted to adjust an actual amount of reactive power to be provided by the plurality of wind turbines (105, 106, 107), wherein the wind turbines (105, 106, 107) are selected for delivering reactive power in the order of the capability scheme, such that the determined total amount of reactive power is fulfilled.

Description

technical field [0001] The invention relates to the technical field of wind farms. In particular, the invention relates to a control system for a wind park, in particular controlling the reactive power output of each wind turbine in the wind park. Background technique [0002] A wind farm includes a number of individual wind turbines and provides electrical power to a utility grid. Today's utility grids require reactive power transmission / consumption from wind power plants or farms. For example a load such as a motor may require reactive power. Modern wind turbines may be able to control their reactive power output. Therefore, the reactive power requirements of the utility grid can be met. [0003] Typically, all wind turbines deliver or consume reactive power on the same basis. Thus, all wind turbines contribute almost the same amount of reactive power. All wind turbines contribute electrical losses to the overall system, however, some wind turbines contribute more el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/50
CPCF03D9/003Y02E10/763H02J3/38Y02E10/723Y02E40/34F03D7/048H02J3/16F03D7/0284F03D9/005F03D9/255F03D9/257Y02E10/72Y02E10/76Y02E40/30
Inventor J.贝赫
Owner SIEMENS GAMESA RENEWABLE ENERGY AS