Electric vehicle charging device and method suitable for bus station or logistics field station

Abstract

The invention discloses an electric vehicle charging device and method suitable for a bus station or a logistics field station, and belongs to the technical field of new energy automobiles; the electric vehicle charging device comprises a plurality of charging guns; a switch matrix comprises a plurality of charging passage groups; each charging passage group is provided with a charging passage, and each charging passage is provided with a relay; the control ends of all the relays are connected with a control module; a power supply module comprises a plurality of charging module groups, and each charging module group is connected with an auxiliary alternating current contactor; the control end of each auxiliary alternating current contactor is connected with the control module; each charging module group comprises at least one charging module, and the output ends of the charging modules are connected with the charging passage groups respectively, so that the charging guns can be flexibly arranged and the requirements on the site can be reduced to the maximum extent, different charging strategies under different conditions can be realized, the temporary scheduling requirement is guaranteed, the electricity consumption cost is effectively lowered, and the purposes of maximizing economic and social benefits of equipment are achieved.

Description

technical field [0001] The invention belongs to the technical field of new energy vehicles, and in particular relates to an electric vehicle charging device and method suitable for public transportation or logistics stations. Background technique [0002] In recent years, electric vehicles have been strongly supported and promoted by the government due to their zero-emission characteristics, and their applications are becoming more and more widespread. [0003] Due to the characteristics of fixed driving routes and controllable mileage of public transport and logistics vehicles, electric vehicles are being rapidly applied. At present, most of the charging equipment operating in the market is mainly aimed at fast charging and serving social vehicles, but the daily dispatch and operating costs of buses and logistics vehicles cannot be well balanced, as follows: [0004] (1) The main purpose of the existing DC charging equipment is to meet the daily or temporary rapid power re...

AI Technical Summary

Problems solved by technology

[0004] (1) The main purpose of the existing DC charging equipment is to meet the daily or temporary rapid power replenishment of social vehicles, and there is no special optimization for buses and logistics vehicles, which is not conducive to the life and overall management and scheduling of buses or logistics vehicles;

[0005] (2) The existing slow charging equipment is mainly 7kW AC charging equipment, which cannot fully charge the battery of a bus and logistics vehicle at night, which affects the battery life of the vehicle;

[0006] (3) Most of the existing multi-guns (4 guns and above) are split (the rectifier cabinet and the charging pile are separated), and each charging pile needs to be equipped with a separate set of control and operation equipment, which increases the cost

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