Standard Comparison of Electric Vehicle Charging Cables

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Among the ways of connecting electric vehicle charging cables, choosing the right electric vehicle charging cable is relatively easy. But let's consider the durability and user experience of using the best charging speed cable.

Including the development of electric vehicles to promote changes in the new energy vehicles, power and energy industries. In this nascent industry, the standardization process is very important. For example, the charging infrastructure, as well as the different sizes of wires and cables, affect the transmission efficiency of different types of grids between different countries and regions. It is easy to replenish the power. The following introduces electric vehicle charging methods, as well as the concept and standard comparison of combined charging.

The concept of conventional ordinary charging methods: In the current electric vehicle conduction power supply process, two methods are mainly used: direct current charging (DC) and alternating current charging (AC). Generally speaking, due to the large power (above 100kW) generated by the DC off-board charger and the short charging time, it is mostly used in service areas, enterprises and other occasions that require fast charging. AC charging generally uses civilian 220V or 110V voltage to replenish battery power through on-board chargers. However, due to the limitation of the size and heat dissipation conditions of the car charger, its power is usually below 7KW, so the charging time is relatively long, so it is below 7KW for a long time, so the charging time is relatively long. Therefore, the peak wind at night is often used to charge at night. , is a common way for electric vehicle owners.

AC charging pile: AC charging is affected by power grid systems in different countries and regions. The voltage and current requirements of charging connectors also vary in charging standards. For example, three-phase electricity in Germany is common among everyday users. The standard defines 480v AC charging voltage and 63A charging current, and the actual power can reach more than 40kW. Compared with the national standard three-phase charging voltage of 440V, the maximum AC charging current is only 32A due to the fact that domestic private houses and communities can directly use three-phase power supply rarely. In fact, both 220V and 16A household voltage standards are used for charging. Therefore, the 5-core charging interface defined by American Standard SAE can only use single-phase AC charging for electric vehicles that adopt this standard, such as GM Volanda, Nissan Leaf, etc.

DC charging pile: Due to the IEC 62196-3 charging DC standard, there are also a variety of DC charging interface modes in various countries and regions. As a charging cable standard, the cables currently on the domestic market use the CAN communication method, so the definition of the charging interface is very close to chademo. The latter is the DC charging standard formed in Japan. It was popularized very early in Japan and is the most widely used in the market. DC charging facilities using this interface can serve the public in Japan, Europe and North America.

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