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Power control method, control device, controller and system of wind generating sets

A technology for wind turbines and power control, applied in the control of wind turbines, wind turbine combinations, wind turbines, etc., can solve the problems of uncoordinated control effects of the whole field and the inability to quickly disturb the frequency of the power grid, and achieve short-term suppression. The effect of disturbance, improving permeability, and improving stability

Active Publication Date: 2018-09-11
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP +1
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Problems solved by technology

[0007] In view of the above problems, the embodiment of the present invention proposes a control method, control device, controller and system of a wind power generating set to solve the problem that the existing control method cannot cope with the rapid disturbance of the grid frequency or the control effect of the whole field is not good. issues of coordination

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  • Power control method, control device, controller and system of wind generating sets
  • Power control method, control device, controller and system of wind generating sets
  • Power control method, control device, controller and system of wind generating sets

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[0059] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0060] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be unders...

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Abstract

The invention provides a power control method, control device, controller and system of wind generating sets. The method comprises the steps that the real-time frequency of a power grid is acquired; when fluctuation of the real-time frequency of the power grid meets the preset condition, the virtual inertia and the virtual droop control character of a wind power plant are determined; according tothe virtual inertia and the virtual droop control character, the power command value of primary frequency modulation of the wind power plant is determined; and according to the power command value ofprimary frequency modulation, power of each wind generating set in the wind power plant is synchronously adjusted. In the method, power synchronous adjustment is carried out on each wind generating set of the whole wind power plant based on the same power command value of primary frequency modulation, the wind generating sets of the wind power plant are coordinated and integrated into a whole, thewhole wind power plant shows the inertia and the droop control character similar to those of a synchronous generator outwards, and therefore disturbance of the power grid can be effectively suppressed through primary frequency modulation, and the stability of the power grid can be improved.

Description

technical field [0001] The present invention relates to the technical field of wind power generation, in particular to a power control method, control device, controller and system of a wind power generating set. Background technique [0002] Wind energy, as a clean and renewable energy source, has attracted more and more attention from all over the world. The wind power generator set is a device that converts wind energy into electrical energy. There is a generator inside. There are a certain number of blades on it. When the blades rotate with the wind, they can drive the hub to rotate, thereby driving the rotor to rotate, and finally make the generator generate electricity, thereby converting wind energy into mechanical energy and then into electrical energy. [0003] In the power generation system with a high proportion of new energy installed capacity in the future, the virtual inertia of multiple power sources will become an adjustable parameter to maintain the dynamic ...

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Application Information

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IPC IPC(8): F03D7/04F03D9/25
CPCF03D7/0284F03D7/048F03D9/257Y02E10/72
Inventor 张毅乔元包献文孙骁强
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP
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