Communication mode of electric vehicle charging station (pile) The electric vehicle charging station (pile) belongs to the distribution network side. Its communication mode is often considered together with distribution network automation. Communication is a key and difficult point of distribution network automation. Different regions and conditions have different communication modes that can be applied, specifically […]
1. Inductive coupling charging standardIn order to realize the marketization of electric vehicles, the American Society of Automotive Engineers has formulated corresponding standards according to the system requirements. Among them, for the chargers of electric vehicles, two charging standards, SAEJ-1772 and SAEJ-1773, have been formulated, which correspond to the contact charging method and the inductive […]
1. Electromagnetic induction coupling methodElectromagnetic inductive coupling is all too familiar to electrical engineers, and transformers use this principle to transfer energy. If the two windings of the transformer are separated, it is a wireless power supply in a sense. However, the transmission of electrical energy by electromagnetic coupling has a great disadvantage. Without a […]
1) ZTEZTE has been working in the field of wireless charging for many years. Through industry-university-research cooperation, product development was launched in 2013, and mature products and solutions were launched in September 2014. ZTE’s wireless power supply system uses non-contact electromagnetic induction for power transmission. After the electric vehicle is parked in the charging parking […]
When wireless charging technology is applied to electric cars, the selection of charging location, charging method and charging battery: (1) Choice of charging location. Wireless charging technology is related to the distance and state of the charger and the device being charged, that is to say, the distance between the two cannot be too large, […]
Nikola Tesla invented the “Tesla coil” in 1891 and used these wire diagrams to conduct a series of experiments that pioneered wireless power transmission. Tesla has said that wireless charging will be the ultimate way to make electricity prosper. In 1901, Nikola Tesla received funding from financier John Pierpon Morgan to build a 187-foot (about […]
According to the requirements of relevant regulations in China, the method of controlling the pilot circuit is used as the judging device for the connection state and rated current parameters of the charging connection device. The typical control pilot circuit is shown in Figure 1. After the plug of the power supply equipment is connected […]
1. Charging station electrical systemThe electrical system of the charging station includes three parts: power supply system, charging equipment and monitoring system. Its structural block diagram is shown in Figure 1. The power supply system provides power for charging equipment, and is mainly composed of primary equipment (including switches, transformers and lines, etc.) and secondary […]
Mechanical charging is to replace the battery pack, that is, the rapid replacement of the battery pack, and the purpose of charging the battery pack of the electric car is achieved by directly replacing the battery pack. The quick replacement time of the battery pack is similar to the refueling time of the fuel car, […]
Fast charging, also known as emergency charging, provides short-term charging services for electric cars within 20 minutes to 2 hours of parking with a large current for a short period of time. The general charging current is 150-400A. Fast charging is different from conventional charging. constant current and constant voltage charging methods. This charging method […]