Electric vehicle charging systems are an important infrastructure for the development of electric vehicles. With the continuous growth of electric vehicle ownership, electric vehicle charging systems will also usher in a broader development space.
What is the charging system of electric cars?
Electric Vehicle Charging System is a system that provides electric energy for electric vehicles, which consists of charging equipment, charging piles, distribution grid and other parts. Charging equipment is the core component of electric vehicle charging system, which is responsible for converting electric energy into electric energy that meets the requirements of electric vehicle batteries. Charging equipment mainly includes charging piles and vehicle chargers. Charging pile is a charging equipment installed in a fixed place, which provides public charging service for electric vehicles. Charging pile is generally composed of charging module, meter, billing device, display screen, communication module and so on. The distribution grid provides electric energy for the electric vehicle charging system. The distribution network needs to be modified and expanded according to the demand of EV charging.
Principle of EV charging system
The basic principle of electric vehicle charging system is to convert alternating current into direct current, and regulate the voltage and current of the direct current, and ultimately charge the electric vehicle battery.
Electric Vehicle Charging Process
The driver of the electric vehicle inserts the charging plug into the charging socket of the charging post.
The charging post communicates with the electric vehicle and shakes hands for authentication.
The charging post sets the charging parameters according to the state of the EV battery and charging demand.
The charging pile converts alternating current (AC) to direct current (DC) and regulates the voltage and current of the DC.
The DC power is delivered to the EV battery to charge the battery.
After charging is completed, the EV driver unplugs the charging plug.
What are the different types of charging systems for electric cars?
According to the different charging methods, EV charging systems can be divided into the following types.
AC Charging: AC charging utilizes alternating current (AC) to directly charge the EV battery. The voltage of AC charging is generally 220V or 380V, and the charging power can reach 7kW~22kW.
DC charging: DC charging is to convert AC power to DC power, and then regulate the voltage and current of DC power, and finally charge the EV battery. The voltage of DC charging is generally 300V~600V, and the charging power can reach 20kW~120kW.
Wireless charging: Wireless charging utilizes the principle of electromagnetic induction to charge EV batteries without contact. The power of wireless charging is generally 3kW~10kW.
Applications
The installation of EV charging systems in different locations has its own advantages, which can bring convenience to vehicle owners and promote the popularization of EVs and the development of green transportation. It makes it more convenient for EV owners to use EVs and promotes the popularization of EVs. EV charging systems can be used in the following scenarios.
Private homes
Installation of charging posts in private homes can provide convenient charging services for EVs. Installing a charging post at home allows vehicle owners to charge their electric vehicles at any convenient time without having to go out and find a charging station. The cost of charging at a home charging post is usually lower than that of a public charging station, which can help car owners save money on charging expenses. Charging at home allows vehicle owners to monitor the charging environment to ensure safe charging. Regular, temperature-appropriate charging helps extend the life of the EV battery.
Public places
Installation of charging piles in public places can provide public charging service for EVs. Charging posts in public places can eliminate the "mileage anxiety" of potential users and encourage more people to consider purchasing electric vehicles. With the increase in the number of electric vehicles, the popularization of public charging piles can reduce emissions from fuel vehicles and improve air quality. The construction of public charging piles can encourage green travel and help low-carbon environmental protection. The operation and management of charging piles can become a new business model and create employment opportunities.
Highways
Installation of charging piles in highway service areas can provide charging services for EVs on long-distance trips. Charging piles in highway service areas can provide the necessary charging protection for EVs on long-distance trips, easing mileage anxiety. Fast charging technology allows electric vehicles to complete charging in a short period of time, reducing the time spent in the service area and shortening the total travel time. The improvement of highway charging networks can provide support for the development of the electric vehicle industry and promote the popularization of electric vehicles. Perfect charging facilities can attract more electric vehicle owners to choose self-driving tours and promote the development of tourism.
Future Development of Electric Vehicle Charging System
The future development trend of EV charging system is intelligent, efficient and wireless. Intelligent charging system can automatically adjust the charging power and time according to the battery status and charging demand of the electric vehicle to improve the charging efficiency. High-efficiency charging systems can reduce energy loss in the charging process and improve charging efficiency. Wireless charging systems can get rid of the constraints of charging cables and provide a more convenient charging experience for electric vehicles.
Electric vehicle charging systems are an important infrastructure for the development of electric vehicles. With the continuous growth of electric vehicle ownership, electric vehicle charging systems will usher in a broader development space.