Automatic voltage control method used for wind power collection region and adapted to wind power fluctuation

A technology for wind power fluctuation and wind power collection, which is used in AC network voltage adjustment, reactive power compensation, etc.

Active Publication Date: 2015-02-11
STATE GRID CORP OF CHINA +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention adapts to the rapid fluctuation of current wind power generation and the automatic control requirements of reactive power and voltage for wind power generation connection

Method used

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  • Automatic voltage control method used for wind power collection region and adapted to wind power fluctuation
  • Automatic voltage control method used for wind power collection region and adapted to wind power fluctuation
  • Automatic voltage control method used for wind power collection region and adapted to wind power fluctuation

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Embodiment Construction

[0057] The automatic voltage control method in the wind power collection area proposed by the present invention to adapt to wind power fluctuations is described in detail in conjunction with the embodiments

[0058] The instructions are as follows:

[0059] The automatic voltage control method in the wind power collection area proposed by the present invention, which adapts to wind power fluctuations, includes the following steps:

[0060] 1) Set the data collection interval of the automatic voltage control system in the wind power collection area to T g , the control cycle of conventional automatic voltage control is T c 0 , where T g and T c 0 Manually output by the operator in the form of parameter setting, T g The value range is 10 to 40 seconds, T c 0 The value range of is 2~8 minutes, and the value of this embodiment is: T g = 30 seconds, T c 0 = 5 minutes; set two kinds of conventional automatic voltage control mode and agile voltage control mode; the control...

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Abstract

The invention relates to an automatic voltage control method used for a wind power collection region and adapted to wind power fluctuation, belonging to the technical field of operation and control of a new energy source access electric power system. The method comprises the following steps: evaluating a wind power fluctuation condition of a current power grid; if wind power is at a rapid fluctuation period, starting quick control; starting a quick control module and shortening a control period to be one minute; if the wind power is at a fluctuation flat period, starting regular control and adopting a regular control period of five minutes. The automatic voltage control method is applicable to passive voltage automatic control requirements of rapid fluctuation and wind power generation access of current wind power generation. The method can be integrated in a wind power generation automatic voltage control main station system operated at a dispatching center so that the system can carry out the most suitable passive voltage control strategy according to a wind power generation operation state and a power grid operation state, and the different control requirements of power grid safety, high quality and economization are met.

Description

technical field [0001] The invention belongs to the technical field of operation and control of a new energy access power system, and in particular relates to an automatic voltage control method for a wind power collection area that adapts to wind power fluctuations. Background technique [0002] The characteristics of strong randomness of wind resources, difficulty in forecasting, and reverse peak regulation make grid dispatching and control more difficult. Due to the lack of strong reactive power support in wind power collection areas, grid voltage varies greatly with wind power active power fluctuations. How to tap wind farms It is one of the common challenges faced by the power grid where all wind power bases are located at present, with the ability to adjust reactive power and voltage, suppress the impact of wind power active power fluctuations on the grid voltage, and support the grid voltage in the area where wind power is collected. [0003] At present, the Automatic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/16
CPCH02J3/16Y02E40/30
Inventor 王彬王丰郭庆来吴涛孙宏斌金海峰陈之栩张涛汤磊刘苗张伯明李煊
Owner STATE GRID CORP OF CHINA
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