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Control method for active power and reactive power distribution of wind turbines

A technology for power distribution and wind turbines, applied in wind power generation, single grid parallel feeding arrangement, etc., can solve problems such as inability to control wind turbines, wind field fluctuations, etc., and achieve the effect of reducing the bearing capacity

Inactive Publication Date: 2016-01-20
CHINA CREATIVE WIND ENERGY +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned technical problems, and solving the problem that each wind turbine cannot be reasonably controlled in the prior art, and the entire wind field cannot be fluctuated within a stable range during control, the present invention provides a wind power generator Control method of active power and reactive power distribution

Method used

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  • Control method for active power and reactive power distribution of wind turbines
  • Control method for active power and reactive power distribution of wind turbines
  • Control method for active power and reactive power distribution of wind turbines

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Embodiment

[0055] Example: such as figure 1 As shown, the present invention includes a set value collection module, an active power distribution strategy module, and a reactive power distribution strategy module.

[0056]Among them, the set value collection module is used to collect the issued active and reactive power set values ​​by connecting with the power grid or connecting with other devices. The collected active and reactive power values ​​are connected to the active power distribution strategy module and the reactive power distribution strategy module. At the same time, the two strategy modules are also connected to the fans to collect fan data information for calculating the settings required by each fan. power value. At the same time, the fan communication advanced is also responsible for sending data to the fan. In the active and reactive power distribution strategy module, the power setting value for each fan will be distributed according to the specified distribution strat...

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Abstract

The invention relates to a control method for active power and reactive power distribution of a wind power generator, which belongs to the technical field of wind power generation. The active power control distribution method is as follows: real-time collection of all fan data in the wind farm, calculation of the real-time total active power, total reactive power and average wind speed of the wind farm; The active power is compared and judged to obtain the power difference △P; set the total active power range value of the electric field accordingly; keep the total active power of the real-time fans in the current wind field within the set total active power range value, and calculate the power of each fan The assigned value is the current real-time active power value of each wind turbine, and remains unchanged within this range. The invention can simultaneously control the active power and reactive power of the fan. Keep the total power of the wind turbine fluctuating in a stable environment, reducing the interference of the power grid.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a control method for distribution of active power and reactive power of a wind power generator. Background technique [0002] Today, with increasing energy consumption and intensified environmental pollution, wind energy, as a renewable green energy, has received widespread attention from all over the world, and wind power generation technology has also become a research hotspot. The installed capacity of wind farms is getting bigger and bigger, and the proportion of wind power output in the total power grid is getting higher and higher. The impact of wind farms on the grid for power generation is also increasing. The energy source of wind power is wind energy. Due to the instability of wind energy, wind farm grid-connected power generation is different from traditional power generation methods. Power regulation technology is one of the shutdown technol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46
CPCY02E10/76
Inventor 赵明武张海平蔡晓峰刘衍选
Owner CHINA CREATIVE WIND ENERGY
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