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A Scheduling Method for Energy Storage Power Station Considering Regional Stability

A technology of energy storage power station and charging capacity, which is applied in the direction of wind power generation, electrical components, circuit devices, etc., to achieve the effect of improving transmission capacity, ensuring regional stability and system operation efficiency, and avoiding wind curtailment and power limitation

Inactive Publication Date: 2022-04-01
INNER MONGOLIA POWER GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report on the dispatching method of energy storage power station considering regional stability under the condition of wind farm group connected to the grid

Method used

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  • A Scheduling Method for Energy Storage Power Station Considering Regional Stability
  • A Scheduling Method for Energy Storage Power Station Considering Regional Stability
  • A Scheduling Method for Energy Storage Power Station Considering Regional Stability

Examples

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Embodiment 1

[0038] Embodiment 1 An energy storage power station scheduling method considering regional stability

[0039] The structural diagram of the group wind power external transmission system of the wind farm is attached figure 2 shown. Build the simulation model in PSASP software. The installed capacity of the two thermal power plants in this area is 200MW, the installed capacity of No. 1 wind farm group is 450MW, and the installed capacity of No. 2 wind farm group is 300MW. According to the fluctuation of wind power, the transmission section is reasonably selected, the number of transmission wires contained in the selected transmission section is n=2, and the rated capacity of the transmission wire is Both are 220MW, and can be substituted into formula (1) to calculate the maximum transportable capacity of the transmission section

[0040]

[0041] Considering comprehensively the fluctuation range of the group wind power of the wind farm at different time scales, the the...

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Abstract

The invention relates to an energy storage power plant scheduling method considering regional stability, comprising the following steps: 1) reasonably selecting a power transmission section as a research object, and determining the maximum value of the transmission capacity of the power transmission section; 2) calculating the safe transmission power of the power transmission section ; 3) Obtain the charge information of the energy storage power station and the predicted output of the wind farm group; 4) Calculate the transmission power of the transmission section; 5) Compare the values ​​of the transmission power of the transmission section and the safe transmission power; 6) Consider the constraints of the energy storage itself Calculate the charging and discharging power according to the conditions; 7) According to the above information such as the charging and discharging power of the energy storage power station, enter the routine economic dispatching link. The invention provides an effective way for improving regional stability and system operation benefit, and has engineering use value.

Description

technical field [0001] The invention belongs to the field of power system planning and operation, and in particular relates to an energy storage power station scheduling method considering regional stability. Background technique [0002] In recent years, my country's wind power has developed rapidly, and it is mainly distributed in the "Three North" region in the form of "large-scale development and centralized access". However, the geographical distribution of wind resources in my country does not match the power load. In the case of limited local consumption, large-scale wind power transmission has become the fundamental way to alleviate the problem of regional power consumption. However, in the early stage of power grid construction, the connection of large-scale wind farms was not considered, and the grid structure was relatively weak. In actual engineering, the duration of the power grid construction cycle is generally long, and the construction of the power grid and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/28H02J3/38
CPCH02J3/386H02J3/28Y02E70/30Y02E10/76
Inventor 王小海费宏运万江蔡雪瑄张红光齐军倪润年陈杏林林俐
Owner INNER MONGOLIA POWER GRP
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