EV Energy Meters Follow the Development Trend of Charging Piles
From a technical perspective, charging piles for new energy vehicles are divided into DC charging piles and AC charging piles; from an application perspective, they are divided into household charging piles and public charging piles. Based on user demands, new energy vehicle manufacturers and charging pile manufacturers are also constantly innovating and iterating new products to improve charging speed.
Single-phase AC charging piles generally have 3.5kW and 7kW, with currents of 16A and 32A respectively. This type of charging pile is mainly used for household use. When selecting a charging pile energy meter, a single-phase two-wire guide rail type is used, which can measure For currents greater than 50A, RS485 communication requires metrology certification. IVY EM118090 single-phase charging pile meter has a maximum current of 100A, RS485 communication, and meets MID certification.Three-phase AC charging piles generally have 11kW, 16kW and 21kW, with currents of 16A, 24A and 32A respectively. IVY EM519024 three-phase charging pile energy meter can be used, with voltage 3×230/400V, maximum current 3×100A, RS485 communication, and meets MID certification.
Commonly used DC charging piles include 30kW, 60kW, and 120kW, but this power is still far from meeting user expectations. Tesla's V3 super charging pile has a charging power of 250kW. At maximum charging power, the vehicle can travel approximately 120 kilometers in 5 minutes. The new charging pile jointly developed by Porsche and Audi has a charging power of 350kW. Tesla is also developing the latest V4 charging pile, with a maximum power of 350kW. Recently, Portugal's i-charging company launched a blueberry modular charging station, which uses several charging piles to charge a car. It can support up to 600kW of charging power, setting a new industry record. This high-power charging pile has high requirements on the power grid, resulting in insufficient transformer capacity in many places and the need to apply for special transformers, resulting in high construction costs. Now there is a new 21kW DC charging pile in the market, which mainly solves the problem of low AC charging power and slow charging speed of new energy vehicles in the early stage, and there is no condition to add high-power DC charging piles. The 21kW DC charging pile solves this problem of users very well. Pain points. We can see that the specifications of DC charging piles are quite diverse. What kind of DC charging pile meters can provide full coverage? IVY EM619001/002 DC charging pile meter has a wide voltage range of 5-1000V and a standard sampling design of 75mV current. The external shunt specification can be replaced to achieve the required current size. RS485 communication complies with EN50470-4 standards.
The charging speed of new energy vehicles can not only be achieved by increasing the power of the charging pile, but also depends on whether the car's battery system can withstand such a large current. New energy vehicles are the future direction. They have received support from governments around the world and have introduced many relevant policies to support them, and have entered a path of rapid development. The pain point of charging speed of new energy vehicles will continue to be innovated, studied and overcome; but these are inseparable from charging pile energy meters, and the measurement and billing of electric energy are indispensable.
