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Method and device for controlling energy storage grid-connected charge and discharge capacity at power generation side, server and storage medium

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

Active Publication Date: 2019-09-20
北京五洲驭新科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides 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, so as to solve the problem of using efficiency of charge and discharge control of existing new energy power stations with energy storage equipment under the premise of meeting the assessment Poor technical issues

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  • Method and device for controlling energy storage grid-connected charge and discharge capacity at power generation side, server and storage medium
  • Method and device for controlling energy storage grid-connected charge and discharge capacity at power generation side, server and storage medium
  • Method and device for controlling energy storage grid-connected charge and discharge capacity at power generation side, server and storage medium

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Embodiment 1

[0097] figure 1 It is a schematic flow chart of the method for controlling the charging and discharging amount of energy storage grid-connected on the power generation side provided by Embodiment 1 of the present invention. This embodiment is applicable to the control of 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. In this case, the method can be executed by the energy storage grid-connected charge and discharge capacity control device on the power generation side, and can be integrated in the server, specifically including 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 po...

Embodiment 2

[0122] figure 2 It is a schematic flow chart of the method for controlling the charge and discharge capacity of energy storage grid-connected to the power generation side 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 method for controlling the amount of charge and discharge of energy storage grid-connected to...

Embodiment 3

[0146] image 3 It is a schematic flow chart of the method for controlling the charging and discharging capacity of energy storage grid-connected to the power generation side 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, it is judged whether the battery is fully charged; when the battery is not fully charged, it is judged 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 ...

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Abstract

The embodiment of the invention discloses a method and device for controlling the energy storage grid-connected charge and discharge capacity at the power generation side, a server and a storage medium. The method comprises the steps of acquiring historical data of the power generation side in a power station, and acquiring the actual power generation condition and power limitation condition of the power station according to the historical data; calculating the actual generation power after power station energy storage equipment is added according to parameters of the energy storage side; calculating the dual-detailed rule assessment score difference by combining the actual power generation condition, the power limitation condition and the actual generation power after the power station energy storage equipment is added; optimizing parameters of a correction function so as to minimize the dual-detailed rule assessment score difference calculated by using the optimized correction function; and adjusting the predicted power value according to the corrected and optimized parameters, and controlling the energy storage side to perform charge / discharge control according to the adjusted predicted power value. The method can effectively improve the accuracy of the predicted power, and can optimize the energy storage efficiency of energy storage equipment under the premise of meeting the dual-detailed rule 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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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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