The charging business model refers to the model in which the electric vehicle user chooses the charging station and the charging station at a fixed locationto directly charge the battery of the vehicle when the electric energy of the vehicle is about to be exhausted. This is the first business model considered by electric vehicle charging stations . In this business model, electric vehicle users complete the transaction by directly charging the car at the charging station/charging pile, consuming power products immediately and paying through the on-site payment model. . To this end, the construction of a corresponding electric vehicle charging and billing system and the introduction of a centralized information management platform are an important part of the construction of electric vehicle charging and discharging stations.

Electric vehicle charging system structure

The charging station can be divided into four sub-modules according to functions: power distribution system, charging system, battery dispatching system, and charging station monitoring system. There are generally three ways to charge the car at the charging station: ordinary charging, fast charging, and battery replacement. Ordinary charging is mostly AC charging, which can use 220V or 380V voltage. Fast charging is mostly DC charging. The main equipment of the charging station includes chargers, charging piles, active filter devices, and power monitoring systems.

To build an electric vehicle charging and billing system, the implementation of the system consists of three parts, which are described below: