Wind power plant layer active power control system and method

A technology of active power and control system, applied in wind power generation, system integration technology, information technology support system, etc., to achieve the effect of control and analysis guarantee

Inactive Publication Date: 2014-12-03
SHANGHAI DIANJI UNIV
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Problems solved by technology

[0003] But at present, the grid-connection of large-scale wind power has brought great challenges to power grid dispatching and peak regulation. In 2009, the State Grid issued the regulations on wind farm access to the grid, which clearly pointed out that wind farms must have the ability to regulate active power, and according to the power system The dispatch center commands to control its active p

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  • Wind power plant layer active power control system and method

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[0019] In the following description, for purposes of illustration rather than limitation, specific details such as specific system architectures, interfaces, and techniques are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0020] Such as figure 1 As shown, it is a schematic structural diagram of a wind farm layer control system according to an embodiment of the present invention. The wind farm layer control system includes a wind farm layer active power control system 10, a wind turbine control system 11, a wind farm monitoring and data acquisition (SCADA ) system 12, a higher-level dispatching system 13 and a wind...

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Abstract

The invention discloses a wind power plant layer active power control system which comprises a power setting device and a power distributing device. The power setting device is used for classifying units according to unit operation information, collected by a wind power plant supervisory control and data acquisition (SCADA) system, of wind generating sets and super-short-term prediction power information obtained form a wind power prediction system, receiving power instructions issued by a superior dispatching system, obtaining setting instructions and a control circle of power to be distributed, judging whether the output needs to be increased or reduced in a wind field, and sending instructions whether the output is conducted or not to the corresponding power distributing device according to a judged handling pattern. The power distributing device is used for issuing control instructions to a fan control system according to current unit classification information and set power distribution strategies, and the fan control system is used for controlling all classes of units. The wind power plant layer active power control system can well control and analyze the active power of a wind power plant so as to ensure the safe and reliable operation of the wind power plant.

Description

technical field [0001] The present invention relates to technologies related to wind power generation, in particular to a system and method for controlling active power at a wind farm level. Background technique [0002] Wind farms use wind energy and combine a series of generators to generate electricity from wind. It is an environmentally friendly and clean method of power generation. The principle of wind power generation is to use the wind to drive the blades of the windmill to rotate, and then increase the speed of rotation through the speed increaser to promote the generator to generate electricity; it consists of the nose, rotor, tail, and blades. The functions of each part are: blades It is used to receive the wind force and convert it into electric energy through the nose; the empennage makes the blades always face the direction of the wind so as to obtain the maximum wind energy; the swivel can make the nose rotate flexibly to realize the function of adjusting the ...

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Application Information

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IPC IPC(8): H02J3/46H02J13/00
CPCY02E10/76Y02E40/70Y04S10/123
Inventor 冯兆红肖惜明张福杰贾铁军陈玉晶梅晓娟公维祥魏浩
Owner SHANGHAI DIANJI UNIV
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