Energy storage grid-connected charging and discharging capacity control method, device, server and storage medium

A control method and technology of discharge capacity, applied in the field of power grid, can solve problems such as low use efficiency

Active Publication Date: 2021-01-26
北京五洲驭新科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method, device, server, and storage medium for controlling energy storage and grid-connected charge and discharge volume, so as to solve the problem of low efficiency of charge and discharge control of existing new energy power stations with energy storage equipment on the premise of meeting the assessment technical problem

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  • Energy storage grid-connected charging and discharging capacity control method, device, server and storage medium
  • Energy storage grid-connected charging and discharging capacity control method, device, server and storage medium
  • Energy storage grid-connected charging and discharging capacity control method, device, server and storage medium

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Embodiment 1

[0097] figure 1 It is a schematic flow chart of the energy storage grid-connected charging and discharging amount control method provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of controlling the charging and discharging of energy storage equipment when a new energy power station equipped with energy storage equipment is connected to the grid for power generation. The method can be executed by an energy storage grid-connected charging and discharging capacity control device, and can be integrated in a server, and specifically includes the following steps:

[0098] S110. Obtain historical data on the power generation side of the power station, and obtain actual power generation and power limit conditions of the power station according to the historical data.

[0099] Exemplarily, the historical data on the power generation side may include: weather type data and power generation parameter data. Since the new energy power statio...

Embodiment 2

[0122] figure 2 It is a schematic flowchart of the method for controlling the charge and discharge capacity of energy storage grid-connected provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. In this embodiment, the parameters of the correction function are optimized so that the difference between the assessment scores of the two detailed rules calculated by using the optimized correction function is the smallest. The specific optimization is as follows: Set the step size, termination condition and loss function of the gradient descent method; set the random value range of the parameters so that the function curve fluctuates within the preset range; determine the optimal correction function parameters through the stochastic gradient descent method.

[0123] Correspondingly, the energy storage grid-connected charging and discharging capacity control method provided in this embodiment specifically inc...

Embodiment 3

[0145] image 3 It is a schematic flowchart of the method for controlling the charging and discharging capacity of energy storage grid-connected provided by Embodiment 3 of the present invention. This embodiment is optimized on the basis of the above embodiments. In this embodiment, the energy storage side is controlled according to the adjusted predicted power value to perform charge / discharge control. The specific optimization is: to determine whether it is currently in a power-limited state, If it is in the state of limited power, then judge whether the battery is fully charged; if the battery is not fully charged, judge whether the rechargeable capacity of the battery is greater than the limited power, and the limited power is Pd=(Pth-Ptr) / 4(Pd: limit power, Pth: theoretical power, Ptr: actual power), when the chargeable capacity of the battery is greater than the limited capacity, judge whether the limited capacity is greater than the charging depth; when the battery’s re...

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Abstract

The embodiment of the present invention discloses a method, device, server, and storage medium for controlling the amount of charge and discharge of energy storage grid-connected on the power generation side, wherein the method includes: acquiring historical data on the power generation side in a power station, and obtaining the actual data of the power station according to the historical data. Power generation situation and power limit situation; calculate the actual power after adding the energy storage equipment of the power station according to the parameters of the energy storage side; combine the actual power generation situation of the station, the power limit situation and the actual power after adding the energy storage equipment of the power station to calculate the double detailed rules Score difference; optimize the parameters of the correction function, so that the difference between the double-detailed assessment scores calculated by the optimized correction function is the smallest; adjust the predicted power value according to the modified and optimized parameters, and adjust the predicted power value according to the adjusted predicted power The value controls the energy storage side to perform charge / discharge control. It can effectively improve the accuracy of predicted power, and can realize the optimization of energy storage efficiency of energy storage equipment under the premise of satisfying the double detailed assessment.

Description

technical field [0001] The invention relates to the technical field of power grids, in particular to a method, device, server and storage medium for controlling energy storage grid connection at a power generation side. Background technique [0002] With the depletion of fossil energy, many countries have increased the research and application of new energy in recent years, hoping to alleviate the problem of energy shortage through new energy power generation, such as wind power generation, photovoltaic power generation, etc. The benefits brought by the use of new energy power generation not only alleviate the crisis of fossil fuels, but also provide new ideas for energy production and transmission. On the other hand, they also solve the problems caused by dependence on fossil energy. environmental pollution and reduce carbon emissions. [0003] However, new energy power generation technology has some adverse effects on the safe and stable operation of the power system. Fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/32H02J3/38
CPCH02J3/382H02J3/32
Inventor 杨弃冯斌陈文洋鲁治罗桂平
Owner 北京五洲驭新科技有限公司
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