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Wind power output adaptive smoothing method based on energy storage battery charge state feedback

A technology of energy storage battery and wind power output, which is applied in the field of self-adaptive smoothing of wind power output based on energy storage battery state-of-charge feedback, and wind power output smoothing based on battery state-of-charge feedback, which can solve the problems of increasing battery capacity and cost of use , to achieve effective control and smooth wind power output

Active Publication Date: 2011-08-24
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology

Moreover, in the wind / storage hybrid power generation system, if there is no reasonable and effective control strategy to monitor the remaining power of the energy storage battery, it will increase unnecessary battery capacity and use costs

Method used

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  • Wind power output adaptive smoothing method based on energy storage battery charge state feedback
  • Wind power output adaptive smoothing method based on energy storage battery charge state feedback
  • Wind power output adaptive smoothing method based on energy storage battery charge state feedback

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] figure 1 It is a schematic diagram of the wind-storage hybrid power generation system; the wind-storage hybrid power generation system includes a wind power generation system, a battery energy storage system, a bidirectional converter and a power grid; the wind power generation system is connected to the power grid with a bidirectional streamer connection.

[0028] figure 2 is the implementation block diagram of the wind power output smoothing method of the present invention, such as figure 2 As shown, the present invention is realized by a communication module 10 , a data storage and management module 20 , a smoothing controller module 30 and an adaptive controller module 40 arranged in the industrial computer. The communication module 10 is responsible for receiving the relevant operating data of wind power and energy st...

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Abstract

The invention relates to a wind power output adaptive smoothing method based on energy storage battery charge state feedback, which comprises the following steps of: A, reading data; B, filtering wind power output based on a smoothing controller module, and calculating a smoothing target value of the wind power output; C, adjusting a time constant of the smoothing controller module in the step B and a power command value of an energy storage battery in real time based on an adaptive controller module; and D, outputting data of the smoothing target value of the wind power output which is calculated in the step B and the power command value of the energy storage battery which is calculated in the step C. Due to an industrial personal computer and a communication platform, the functions of smoothing the wind power output, monitoring system on chip (SOC) of the energy storage battery on line, adaptively correcting the time constant of a filter, adaptively correcting the power value of the energy storage battery and the power value of a wind power smoothing target, and the like are realized; therefore, the wind power smoothing effect and energy storage battery management are conveniently and effectively controlled in a wind storage hybrid power generation system.

Description

technical field [0001] The present invention relates to wind power output smoothing and a monitoring method for battery energy storage systems, in particular to a wind power output smoothing method based on battery state of charge (State Of Charge, SOC) feedback suitable for wind / storage hybrid power generation systems, especially It involves an adaptive smoothing method of wind power output based on the state of charge feedback of energy storage batteries. Background technique [0002] Due to the uncertainty and instability of wind energy, the instantaneous rise or fall of wind power generation power will cause the output power to be unstable, making the wind power grid-connected power fluctuate continuously. Moreover, as the proportion of wind power generation in the grid continues to increase, the smooth control of wind power output power has attracted more and more attention. [0003] With the continuous development of batteries and their integration technologies, the a...

Claims

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Application Information

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IPC IPC(8): H02J3/32H02J3/38
CPCY02E10/763Y02E70/30Y02E10/766Y02E10/76
Inventor 李相俊惠东闫涛来小康
Owner CHINA ELECTRIC POWER RES INST
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