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Method for reducing power grid peak-valley difference based on battery energy storage device and electric heat storage device

A battery energy storage, electric heat storage technology, applied in the field of grid peak-valley difference adjustment, can solve the problems of single, inflexible operation cost, etc.

Active Publication Date: 2020-05-05
EAST INNER MONGOLIA ELECTRIC POWER COMPANY +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this method is that in the existing methods of using energy storage technology to reduce the peak-valley difference of the power grid, usually only a single energy storage method is used, and the energy storage is not flexible enough and the operation cost is high

Method used

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  • Method for reducing power grid peak-valley difference based on battery energy storage device and electric heat storage device
  • Method for reducing power grid peak-valley difference based on battery energy storage device and electric heat storage device
  • Method for reducing power grid peak-valley difference based on battery energy storage device and electric heat storage device

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Embodiment Construction

[0066] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0067] In this embodiment, the method of the present invention is used to perform peak shaving in an area that has battery energy storage peak shaving equipment and electric heat storage peak shaving equipment.

[0068] like figure 1 As shown, the method for reducing the peak-to-valley difference of the power grid based on the battery energy storage device and the electric heat storage device of the present invention includes the following steps:

[0069] Step 1: Collect data: collect the forecast data of the next day of the power grid, the forecast data of the next day of the power grid includes the average temperature of the next day where the power grid is located T = 25 ° C, the reference value of the average temperature of the next day T 1 =22°C, relative air humidity H of the next day=0.6, reference value H of relative air humidity of th...

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Abstract

The invention relates to the technical field of power grid peak-valley difference adjustment, and provides a method for reducing a power grid peak-valley difference based on a battery energy storage device and an electric heat storage device. The method comprises the steps of firstly, collecting data; then, calculating peak regulation coefficients of the battery energy storage device and the electric heat storage device; then, judging the charging and discharging state of the battery energy storage device and the heating and discharging state of the electric heat storage device according to the difference value between the total output of the generator set in each time period and the average load of the power grid in the time period and the total capacity and residual capacity of the battery energy storage device and the electric heat storage device; and finally, when peak clipping is needed, according to the peak clipping power demand of the next day of the power grid and the residualenergy of the two devices, coordinately planning the discharge of the battery energy storage device and the heat release of the electric heat storage device; and when valley filling is needed, coordinately planning charging of the battery energy storage device and heating of the electric heat storage device according to the valley filling power requirement of the next day of the power grid and the remaining capacity of the two devices. According to the method, the peak-valley difference of the power grid can be effectively adjusted, new energy is consumed as much as possible, and the method is flexible and economical.

Description

technical field [0001] The invention relates to the technical field of power grid peak-valley difference adjustment, in particular to a method for reducing power grid peak-valley difference based on a battery energy storage device and an electric heat storage device. Background technique [0002] In order to ensure the power supply quality of the power grid, corresponding measures must be taken to reduce the peak-valley difference of the power grid. The existing methods to reduce the peak-to-valley difference of the power grid mainly include: (1) Use the time-of-use electricity price to guide consumption with the difference in the peak-to-valley price to reduce the peak-to-valley difference of the power grid. The disadvantage of this method is that it cannot effectively promote the consumption of new energy, resulting in a great waste of energy. (2) Through the application of energy storage technology, such as battery energy storage technology, electric heat storage technol...

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Application Information

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IPC IPC(8): H02J3/32H02J3/28
CPCH02J3/32H02J3/28
Inventor 项颂吴坚吴晓丹顾大可
Owner EAST INNER MONGOLIA ELECTRIC POWER COMPANY
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