Active power control method of master station-end wind power field subject to wind power grid integration

A technology of active power and control method, which is applied in the control of wind turbines, wind power generation, and combination of wind power motors. The effect of control

Active Publication Date: 2011-04-06
NORTHWEST CHINA GRID +1
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Problems solved by technology

The active power control technology of the power grid and wind farms after wind power access is disclosed from different aspects such as grid resource coordination, resource mobilization optimization, and grid security perspectives. few

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  • Active power control method of master station-end wind power field subject to wind power grid integration
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  • Active power control method of master station-end wind power field subject to wind power grid integration

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Embodiment Construction

[0053] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0054] Such as figure 1 Shown is a schematic diagram of the active power dispatching framework of a regional power grid including wind farm control in the present invention, and the specific implementation steps are:

[0055] (1) Incorporate wind turbines into the active power dispatching and control framework of the regional power grid. The control principle of wind turbines based on "power generation plan tracking" based on wind power forecasting, supplemented by "direct participation in frequency regulation" of wind turbines (called auxiliary frequency regulation);

[0056] (2) For short-term and ultra-short-term wind power forecasting, wind power forecasting in multiple time dimensions is u...

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Abstract

The invention discloses an active power control method of master station-end wind power field subject to wind power grid integration for a large-scale wind power integrated network, and belongs to the technical field of power systems. The method comprises the following steps of: providing a regional power grid active scheduling framework containing wind power field control, predicting newly increased functional short and ultra-short wind power by adopting the control principle of wind power-based predicted ''generating plan tracking'' serving as a main aspect and wind power unit ''direct frequency modulation participation'' serving as a secondary aspect, and describing auxiliary frequency modulation; providing data flow design of an active scheduling system containing wind power field control; providing a wind power field active power control mode to improve the wind power receiving capacity of the power grid by wind power participating power grid active control based on the current wind power control technology; and providing stable section-based wind power field active power control so as to further solve the wind power consume problem under high wind power permeability rate by using the renewable energy source such as maximum dissipated wind power and the like as principle on the premise of ensuring that the wind power of the system is connected to the important section stability margin.

Description

technical field [0001] The invention belongs to the field of power system control, and in particular relates to a method for controlling the active power of a wind farm at the master station end of a power grid, which is suitable for large-scale wind power grid connection. Background technique [0002] Wind power is currently the most mature technology and the best economic benefit of renewable energy power generation except hydropower. With the start of construction of several 10-million-kilowatt wind power bases in China and the grid-connected operation of large-scale wind power, the randomness, volatility and intermittent characteristics of wind power have gradually revealed their impact on the safe and stable operation of the power grid. The difficulty of operation management and scheduling control is gradually increasing. [0003] At the present stage, after wind power is connected to the grid, the power grid adopts priority scheduling and full acquisition to accept wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00F03D9/00H02J3/38F03D9/25
CPCY02E10/763Y02E10/723Y02E10/72Y02E10/76
Inventor 白兴忠腾贤亮万筱钟
Owner NORTHWEST CHINA GRID
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