Bidirectional AC charging device and operation method thereof

Abstract

A bidirectional AC charging device is coupled to a mains supply and an electric vehicle, and includes a power transmission path, a switch, a first controller, a communication unit, and a second controller. One end of the power transmission path is coupled to the mains supply through the first connection end, and the other end is coupled to the electric vehicle through the second connection end. The switch is arranged on the power transmission path; the communication unit is coupled with the second connecting end; the first controller is coupled to the power transmission path, the switch, the second controller and the communication unit. When the second controller receives a power demand request, the first controller is notified, the first controller switches from the first signal to the second signal to communicate with the electric vehicle and controls the switch not to be conducted, and after receiving a feed permission notification provided by the electric vehicle, the first controller controls the switch to be conducted. The invention also relates to an operation method of the bidirectional AC charging device.

Description

technical field [0001] The present invention relates to an AC charging device, in particular to an AC charging device capable of bidirectional power supply and an operation method thereof. Background technique [0002] In recent years, due to the rising awareness of environmental protection, government agencies have actively implemented energy-saving and carbon-reduction policies, and the electric vehicle industry, which can greatly reduce air pollution, has also flourished. With the increasing popularity of electric vehicle applications, the charging technology of electric vehicles has also received increasing attention. like figure 1 Shown is a circuit block diagram of a conventional AC charging device. The traditional electric vehicle charging method using AC charging is to couple the AC charging device 1' to the mains 2, and use a charging gun to physically couple the electric vehicle 3 to charge the electric vehicle. 3 Charge. The traditional AC charging device 1 ′ c...

AI Technical Summary

Problems solved by technology

Therefore, the one-way charging architecture of the traditional mains 2 to the electric vehicle 3 can no longer meet the needs of the flexible application of the above-mentioned power system

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