Regular polygon preemptive electric vehicle on-demand power distribution charging circuit, method and pile

Abstract

The invention belongs to the technical field of charging equipment, and discloses a regular polygon preemptive electric vehicle on-demand power distribution charging circuit, method and charging pile. Every two charging modules are interconnected according to a regular polygon structure, the charging modules are connected with charging equipment through power cables, and a contactor group is arranged between every two interconnected charging modules. When a plurality of electric vehicles are charged at the same time, under the condition that all charging modules can be mutually borrowed, the use of the contactor group is reduced, the circuit design cost and the structural complexity are reduced, and the space requirement of a box body is saved. According to the invention, the power is distributed as required, power allocation is carried out according to the real-time power of the electric vehicle, the charging utilization rate of the charging modules is greatly improved, and the economic benefit of charging is remarkably improved. According to the preemptive design of the charging modules, each charging device can be distributed to the lowest group of charging modules, so that the overall use efficiency of the charging equipment is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of charging equipment, and in particular relates to a regular polygon preemptive electric vehicle on-demand power distribution charging circuit, method and charging pile. Background technique [0002] At present, with the development of electric vehicles, charging facilities have gradually become popular. According to different application scenarios, charging equipment with different power, single gun or multiple guns has been developed; The design of power dispatching circuit is mainly based on bus structure, ring structure and matrix structure. [0003] The following describes how power scheduling works for each structure: [0004] The circuit design of the bus structure is the simplest. When there are N groups of charging modules, only N-1 contactor groups are needed to complete the secondment of all modules; but when there are two or more electric vehicles charging at the same time, it will not be secon...

AI Technical Summary

Problems solved by technology

[0007] Through the above analysis, the existing problems and defects of the prior art are as follows: when charging multiple electric vehicles in the prior art, it is easy to have the problem of not being able to second the non-adjacent and non-working charging modules, resulting in waste of charging modules and low charging efficiency , the economic benefit is not significantly improved; secondly, the structural complexity of the current transmission circuit is reduced, the number of related electrical equipment is reduced, the electrical safety protection of the circuit can be enhanced in the original space, and the operation and maintenance cost can be reduced

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