Method and device for calculating bearing capacity of charging and battery swapping facility connected to power grid

By determining the evaluation framework in the bearing capacity calculation method of charging and swapping facilities to the power grid, calculating the bearing capacity of each voltage level and performing overall classification, the problems of complex models and failure to effectively allocate bearing capacity in the existing technology are solved, and a more accurate and scientific grid bearing capacity evaluation is achieved.

CN119726702APending Publication Date: 2025-03-28南方电网能源发展研究院有限责任公司
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Patent Information

Application Number
CN202411917254.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

When the prior art calculates the bearing capacity of electric vehicle charging and swapping facilities to the power grid, the model is complex and requires a large amount of real-time data support. It mainly focuses on a single grid level, and fails to effectively consider the allocation of bearing capacity at different levels.

Method used

Provide a method for calculating the bearing capacity of charging and swapping facilities to the power grid. By determining the bearing capacity evaluation framework, obtaining the power grid data and charging and swapping facilities data, calculating the bearing capacity in the numerical order of each voltage level, and coordinating and grading according to the electrical connection relationship, adjusting the scale of the charging and swapping facilities.

Benefits of technology

The accuracy of the bearing capacity calculation of charging and swapping facilities connected to the power grid is improved, and the bearing capacity at different levels can be allocated more scientifically, the grid structure can be optimized, the grid operation efficiency can be improved, the grid overload can be avoided, and the grid safety and stability can be ensured.

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Abstract

The invention relates to a method and device for calculating the bearing capacity of a charging facility connected to a power grid, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: determining a bearing capacity assessment framework according to a to-be-assessed area of an access power grid where the charging and battery swapping facility is located; acquiring power grid data in the to-be-evaluated area and charging and battery swapping data of the charging and battery swapping facility; according to the charging and swapping data, calculating the bearing capacity of the charging and swapping facility access power grid equipment of each voltage level according to the numerical sequence of each voltage level; according to the electrical connection relation and the connection relation between the bearing capacities of the charging and swapping facilities of all the voltage levels and the power grid equipment, overall planning and grading are conducted on the bearing capacities of the charging and swapping facilities of all the voltage levels and the power grid equipment, and the scale of the charging and swapping facilities capable of being connected into a power grid is adjusted according to the overall planning and grading result. By adopting the method, the distribution problem of bearing capacity of different levels can be considered, and the bearing capacity calculation accuracy of the charging and battery swap facility accessing the power grid is improved.
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