A method for site selection and capacity determination of centralized power-swapping power stations based on the robustness of power grid structure

A technology for power grid structure and power station replacement, applied in data processing applications, instruments, calculations, etc., can solve problems such as increased risk of grid failure, increased overall load fluctuations in urban power grids, and difficulties for grid operators to achieve unified scheduling and management of charging access. Achieve the effect of improving the reliability of power grid operation and improving the overall structure of the power grid
CN107944712BActive Publication Date: 2021-11-02SHANGHAI MUNICIPAL ELECTRIC POWER CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI MUNICIPAL ELECTRIC POWER CO
Publication Date
2021-11-02

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Abstract

The present invention relates to a method for selecting the location and capacity of a centralized battery-swapping power station based on the robustness of the grid structure, including: S1, calculating the total daily battery-swapping demand of electric vehicles in the planned area; S2, calculating the power supply moment index of the urban grid, Quantitatively evaluate the spatio-temporal characteristics of urban daily power load transfer; S3, construct the power supply moment balance index of the urban power grid, minimize the power supply moment balance index by adjusting the power supply moment balance index, and improve the strength of the power grid structure to obtain the strength of the power grid structure Comprehensive evaluation index; S4. Construct a two-layer multi-objective planning model, including an upper-level planning model and a lower-level planning model, and determine the fixed capacity of the site selection of the centralized power-swapping station. The invention can not only meet the basic needs of electric vehicles in the region, but also improve the strength of the overall structure of the grid and improve the reliability of the grid operation by utilizing the energy storage properties of the centralized swap station for the urban transmission grid.
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Description

technical field

[0001] The invention relates to a site selection and capacity determination method for a centralized power exchange station, and specifically refers to a site selection and capacity determination method for a centralized power exchange station based on consideration of the rigidity of the grid structure. Background technique

[0002] In the prior art, the charging modes of electric vehicles are mainly divided into three categories, namely slow charging mode, fast charging mode and battery replacement mode. The first two are generally referred to as the V2G (Vehicle to Grid) charging mode, while the technology that uses battery replacement and is connected to the grid by the power station to complete charging is called the B2G (Battery to Grid) charging mode.

[0003] At present, most of the research on electric vehicle charging strategy still focuses on the V2G charging mode, which is easily affected by the randomness of electric vehicle charging time and spa...

Claims

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