Charging system and charging system control method

Abstract

The invention relates to a charging system and a charging system control method. The charging system comprises a charging terminal, a direct current bus and a plurality of charging modules, and further comprises a main control unit used for being in communication connection with the charging terminal; the charging modules are in parallel connection and then in communication connection with the main control unit; the charging terminal receives demand information of a charged vehicle, the number of required charging modules is calculated, the number of the required charging modules and to-be-conducted direct current bus information are sent to the main control unit, the main control unit is provided with a to-be-conducted charging module, a fixed address of the to-be-conducted charging module is obtained, a dynamic address of the to-be-conducted charging module is set according to the fixed address, the dynamic address corresponds to the to-be-conducted direct current bus, and a controlcommand is sent to the to-be-conducted charging module according to the dynamic address to control the action of the to-be-conducted charging module. The charging system and the charging system control method have the advantages that the charging system circuit can be simplified, the reliability of the charging system is improved, and the problem of communication time difference when multiple charging modules are simultaneously controlled is solved.

Description

technical field [0001] The present invention relates to the technical field of charging, and more specifically, to a charging system and a charging system control method. Background technique [0002] At present, the energy storage battery capacity and charging rate of various electric vehicles are different, and the requirements for the output power of the charger are quite different. In order to solve the contradiction between the low utilization rate of charging equipment when the demand power of electric vehicles is too low and the insufficient charging capacity when the demand power of electric vehicles is too high, a kind of power sharing can be adopted. [0003] exist figure 1 In the charging system of the prior art, the intelligent charging module groups M1-M4 can be output to different DC buses by closing different high-voltage DC contactors K1-K16. During the charging process, different numbers of intelligent charging modules can be invested according to the dema...

AI Technical Summary

Problems solved by technology

In the prior art, it is necessary to set switch K17-K20 on the communication bus, and when controlling multiple charging modules point-to-point, there will inevitably be a difference in communication time

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