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Electricity-limiting control method for wind farm

A control method and wind farm technology, applied in wind power generation, single grid parallel feed arrangement, etc., can solve problems such as no automatic control method for wind farm layer power

Inactive Publication Date: 2012-12-12
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0004] In addition, the current output control of wind farms is mostly distributed according to the capacity or output forecast ratio, and rarely considers the grid dispatching requirements and the real-time operation status of the units, and has not formed a complete automatic control method for wind farm layer power.

Method used

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  • Electricity-limiting control method for wind farm
  • Electricity-limiting control method for wind farm
  • Electricity-limiting control method for wind farm

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Embodiment Construction

[0048] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0049] figure 1 It is a block diagram of basic steps of a method for controlling power limitation of a wind farm provided by the present invention.

[0050] A method for controlling power rationing in wind farms, characterized in that it comprises the following steps:

[0051] Step 101: Extracting the parameters related to the set wind turbine control;

[0052] Step 102: Perform normalization processing according to set rules;

[0053] Step 103: Determine the adjustment performance parameter of the wind turbine;

[0054] Step 104: Sorting according to the unit indicators, and establishing a power-limiting sequence for the units;

[0055] Step 105: The control system of the wind farm performs control according to the...

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Abstract

The invention discloses an electricity-limiting control method for a wind farm belonging to the technical field of power system wind power generation. Based on the output characteristics of a wind farm and a control principle of a wind turbine, and referring to the real-time scheduling scheme of a normal wind turbine, the method adopting the technical scheme comprises the following steps of 1, designing and determining parameters relative to the wind turbine control; 2, designing a calculating scheme of the adjusting performance index of the wind turbine based on the scheduling control requirement and the normalization method of the power system; and 3, establishing an electricity limiting sequence of the wind turbine in a wind farm based on the basic principle of the combination priority list of the power system wind turbine and using the wind turbine characteristics and adjusting performance index as the basis, thereby rationally determining the output capacity distribution in the wind farm when the wind turbine is in the electricity limiting control.

Description

technical field [0001] The invention belongs to the technical field of wind power generation in an electric power system, and in particular relates to a method for controlling power limitation of a wind farm. Background technique [0002] Wind power is intermittent, volatile, and random, and cannot provide stable power generation. Its grid-connected power generation has brought certain impacts and challenges to the safe and stable operation of the grid. In order to ensure the safety and stability of the power grid, dispatchers often need to leave a large safety margin in operation control. However, with the large-scale centralized development and grid connection of wind power, it will become more and more difficult to regulate only through the grid. In addition, the "Technical Regulations for Connecting Wind Farms to the Power Grid" issued by the State Grid Corporation of China pointed out: "Wind farms should have the ability to regulate active power and be able to control ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46
CPCY02E10/763Y02E10/76
Inventor 林俐谢永俊贾林莉朱晨宸赵会龙丁魁兰涛
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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