Method for regulating active power of wind power field

A technology of active power and adjustment method, which is applied in the direction of wind power generation, wind motor combination, wind engine, etc., can solve the problems of safe operation of the power grid, adverse effects of power quality, inability to digest electric energy, etc., and achieve easy function expansion, high reliability, Control precise effects

Active Publication Date: 2014-02-19
BEIJING GUODIAN SIDA TECH CO LTD
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Problems solved by technology

[0004] Usually, large-scale wind farms are built in relatively remote areas, and the electricity that cannot be digested locally can only be maximized by connecting to the grid.
The randomness and intermittent nature of wind power will inevitably have adverse effects on the safe operation of the grid and power quality after being connected to the grid, and put forward higher requirements for system operation scheduling and control.

Method used

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  • Method for regulating active power of wind power field

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Embodiment Construction

[0029] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0030] The invention mainly limits the active power of each fan by controlling the pitch angle of the fan, thereby realizing the load limitation of the whole wind farm. The entire adjustment process is divided into two important processes. Firstly, according to the power limit of the wind farm in the whole field given by the grid dispatching command, the wind turbines participating in the adjustment are firstly adjusted roughly, and then the second fine-tuning is performed according to the output power of the wind farm. In order to reduce the error caused by factors such as wind power consumption. Such as figure 1 As shown, the specific adjustment steps are as foll...

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Abstract

The invention discloses a method for regulating active power of a wind power field. The active power of each fan is limited through controlling the pitch angles of the fans in the wind power field, and thereby, the load limit of the whole wind power field is realized. The active power regulation process can be divided into a primary coarse regulation level and a secondary fine regulation level, so that a closed loop is formed in power regulation, and the error proportion of input to output is effectively reduced. After the technical scheme is adopted by the method for regulating the active power of the wind power field, the active power of the wind power field can be rapidly, accurately and effectively regulated, the safety and the power quality of a power grid after the wind power field is put in are improved, and the stability of a power system is effectively maintained.

Description

technical field [0001] The invention relates to the field of wind power control, in particular to a method for adjusting active power of a wind farm. Background technique [0002] Due to the increasingly serious environmental problems such as global climate change and greenhouse gas emissions, the development and use of green and renewable energy has received more and more attention. Wind power technology is currently the most mature and economically beneficial power generation technology using renewable energy besides hydropower. It has developed rapidly in the world in recent years. [0003] my country has a vast territory, abundant wind energy resources, and great potential for development. With the rapid development of wind power technology and the emphasis on green renewable energy in national policies, my country's wind power industry has entered a period of rapid development. In January 2011, the Renewable Energy Professional Committee of the China Association for C...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D9/00F03D7/00H02J3/38
CPCY02E10/763Y02E10/723Y02E10/72Y02E10/76
Inventor 柯超冯健袁凌吉国华黄涛刘红鄢建红王桢单娜
Owner BEIJING GUODIAN SIDA TECH CO LTD
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