Wind farm active power control method based on virtual load rate of multiple trading plans

A technology of active power and virtual load, applied in wind power generation, AC network circuits, electrical components, etc., can solve problems such as wind curtailment and limited total wind power generation

Active Publication Date: 2021-04-02
STATE GRID JILIN ELECTRIC POWER COMPANY LIMITED +1
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Problems solved by technology

[0004] Due to the limited total amount of wind power generation that the grid can accept at the same time, when there are many wind farms connected to the grid in the power system, the situation of "wind abandonment" will occur, that is, the active power dispatching control system of the grid needs to limit the active power of each wind farm Contribute

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  • Wind farm active power control method based on virtual load rate of multiple trading plans
  • Wind farm active power control method based on virtual load rate of multiple trading plans
  • Wind farm active power control method based on virtual load rate of multiple trading plans

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Embodiment Construction

[0045] A kind of wind farm active power control method based on the virtual load rate of multiple trading plans proposed by the present invention comprises the following steps:

[0046] (1) The active power dispatching control system of the power grid dispatching center takes the period T c Issue active power control commands to each wind farm in the grid;

[0047] (2) In each cycle T c When it arrives, set the trade plan weight coefficient value F of each wind farm in the power grid i = 0, F i is an integer less than or equal to 0, set the capacity adjustment base value of each wind farm Will As the processing mark of each wind farm participating in the transaction plan, if the transaction plan of wind farm i has not been processed, record If the transaction plan of wind farm i has been processed, record Where i is the number of the wind farm, n is the serial number of various trading plans that wind farm i currently participates in, n=1,2,...,N, set The initial v...

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Abstract

The invention proposes a wind farm active power control method based on multiple transaction plan virtual load rates, which belongs to the technical field of operation and control of new energy access power systems. This method collects the current active power generation value, installed capacity value, and participating transaction plan values ​​of each wind farm from the active power dispatching system of the power grid dispatching center in real time when each active power control command cycle arrives, and calculates the value according to the transaction plan The priority order of the transaction plan value is introduced into the load rate calculation to form a "virtual load rate". When the trading plan that the wind farm participates in is not fully implemented, its virtual load rate is negative. In the load rate balancing control strategy, the active power output of the wind farms participating in the trading plan will be guaranteed first to ensure the execution of the trading plan.

Description

technical field [0001] The invention relates to a method for controlling active power of a wind farm based on virtual load rates of various trading plans, and belongs to the technical field of operation and control of new energy access power systems. Background technique [0002] Wind energy is a kind of abundant and renewable clean energy. Reasonable and effective use of wind energy is one of the effective ways to adjust the energy structure and solve the energy crisis. China is rich in wind energy resources, and the huge reserves of wind energy that can be developed and utilized provide a good resource base for the rapid development of the wind power industry. In recent years, China's wind power installed capacity has continued to increase, and the scale of wind power grid connection has gradually expanded. Due to the unbalanced distribution of wind energy resources, China's wind power is mainly concentrated in the "Three Norths" (Northeast, North China, and Northwest) re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/48H02J3/38H02J3/00
CPCH02J3/386H02J3/008H02J3/48H02J2203/20Y02E10/76
Inventor 孙勇汤磊傅吉悦李振元廖小梦刘志君王鹏郭雷曲绍杰林禹贵
Owner STATE GRID JILIN ELECTRIC POWER COMPANY LIMITED
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