Three-phase balance control method, device and equipment for mobile shared charging robot

Through the three-phase balance control method of mobile shared charging robots, the phase allocation probability matrix and imbalance calculation are used to solve the problems of space binding and resource waste in traditional charging piles, and the three-phase balance of charging stations is improved, and the charging efficiency and power quality are improved.

CN119765397AActive Publication Date: 2025-04-04CHINA SOUTHERN POWER GRID ELECTRIC VEHICLE SERVICE CO LTD
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Patent Information

Application Number
CN202510254357.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2025-04-04
Estimated Expiration
2045-03-05

AI Technical Summary

Technical Problem

Traditional charging piles have space binding problems in "vehicle search" and resource waste of "oil vehicle space occupation". At the same time, single-phase AC charging during electric vehicles leads to three-phase imbalance of the distribution transformer, increasing copper and iron losses, and reducing the operating efficiency of the transformer.

Method used

A three-phase balance control method for mobile shared charging robots is provided. By determining a candidate mobile shared charging robot when receiving the charging demand of the vehicle to be charged, and based on the remaining charging amount, the required charging amount and the output power, multiple phase distribution probability matrices are constructed, and the imbalance under the phase distribution strategy is calculated until the preset conditions are met, and phase adjustment is performed to improve the three-phase balance.

Benefits of technology

It effectively solves the problem of three-phase imbalance in the transformer area of ​​the charging station, reduces the loss of the transformer, improves charging efficiency and power quality, and reduces the mechanical loss of the equipment.

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Abstract

The invention relates to a three-phase balance control method, device and equipment for a mobile shared charging robot. The method comprises the following steps: when a charging demand initiated by a to-be-charged vehicle is received and a mobile shared charging robot in an idle state exists in a charging station, constructing a plurality of phase distribution probability matrixes based on the number of candidate mobile shared charging robots and the number of mobile shared charging robots in a charging state, on the basis of the residual charging electric quantity, the required charging electric quantity and the output power, the unbalance degree of the multiple phase distribution probability matrixes is calculated; and determining a probability updating speed and a probability updating direction based on the target phase distribution probability matrix of which the unbalance degree meets a preset condition, updating the plurality of phase distribution probability matrixes, carrying out iterative execution until the unbalance degree meets a preset stop condition, and carrying out phase adjustment based on a phase distribution strategy corresponding to the unbalance degree. By adopting the method, the problem of three-phase imbalance of the transformer area of the charging station can be improved.
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