Control method for controlled wind power plant of wide area wind power control system

A technology of control system and control method, applied in wind power generation, electrical components, circuit devices, etc.

Active Publication Date: 2013-05-01
STATE GRID HEILONGJIANG ELECTRIC POWER COMPANY +2
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Problems solved by technology

The patent "A Wide-area Wind Power Peak Regulation Control System for Electric Power System" (Patent Publication No.: ZL200910080530.0) previously applied by the applicant proposed to control the wind farm with the deviation of tie line as the control target and adopt the strategy of circular queue. The method has beco

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  • Control method for controlled wind power plant of wide area wind power control system
  • Control method for controlled wind power plant of wide area wind power control system
  • Control method for controlled wind power plant of wide area wind power control system

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Embodiment Construction

[0042] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0043] The invention is applicable to the power grid where the wide-area wind power control system is deployed. The wide-area wind power control system is a wind farm control system based on the wide-area measurement system WAMS, which belongs to a sub-module of the WAMS application.

[0044] as attached figure 1 Shown is a schematic structural diagram of the method for realizing the calculation of the controlled amount of the controlled wind farm and the selection and sorting of the wide-area wind power control system of the present invention. part. The calculation part of the total control quantity of the wind farm reads in the basic parameters and threshold information, and combines the real-time data of the power grid frequency read from the WAMS system with the planned and actual values ​​of the tie line read in from the SCADA...

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Abstract

The invention discloses a method for calculating the output controlled quantity and a wind power plant in a wind area wind power control system of a power system. The method comprises the steps of: calculating and evaluating control performance standard (CPS (Control Performance Standard) comprising CPS1 and CPS2) indexes controlled by interconnecting ties; judging whether the two indexes are qualified or not; if not, calculating the total controlled quantity of cutting off wind power plant output or recovering the wind power plant output in the whole network by the indexes; calculating and sequencing the regulating and controlling capacities of the wind power plants according to a weighting and scoring method; and calculating the numerical values for control by the wind power plants according to a predetermined current output percentage, combining the numerical value of the output controlled quantity of a whole power grid and sequencing results of the wind power plants, selecting the range of the wind power plants controlled at present, and issuing a control command to complete control operation. According to the invention, the precise control of the wind power plant is improved, and the demand for safe and stable operation of the power grid is satisfied.

Description

technical field [0001] The invention belongs to the field of dynamic monitoring of power systems, and in particular relates to a method for calculating output control quantities in a wide-area wind power control system of a power system and controlling a wind farm. Background technique [0002] With the development of my country's wind power technology and the emphasis on the development and utilization of renewable energy, wind power has developed rapidly in my country in recent years. The biggest difference between wind power generation and traditional hydrothermal power is the randomness, intermittency, and anti-peaking characteristics of wind power. In the early stage of wind power development in my country, due to the small installed capacity of wind power and low power consumption, the impact on the entire power grid is relatively small. However, with the increase in wind power installed capacity recently, the influence of the above characteristics has gradually expand...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/46
CPCY02E10/763Y02E10/76
Inventor 才洪全许君德边二曼严耿徐洪涛张志东华科杨东郭庆阳王海涛
Owner STATE GRID HEILONGJIANG ELECTRIC POWER COMPANY
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