To build a safe DC charging connector, not only the core technical support inside the control box, but also reliable material support, the material requires flame retardant, environmental protection, wear resistance, weather resistance, impact resistance, high oil resistance, UV resistance, high and low temperature resistance, etc. .
Those who drive will definitely add fuel to the car. The use of AC charging connectors is not complicated. Open the cover, enter the connector, pay the money, and refuel. And electric cars are a new set of processes. This article is intended to popularize the use of AC charging connectors and charging posts. This will prevent the electric car from being used up because it is not powered.
The charging connector is used as a bridge between the connecting car and the pile. The quality of the charging connector directly affects the safety of the charging experience. Therefore, it is especially important to select a high-quality charging connector. So how do we choose a quality rechargeable connector?
Assume that the grid's limited power is 40kw, and all three chargers in the field have electric vehicles. The electric vehicle of the corresponding one of the charger has a predicted maximum charging power of 20kw, and the current state is a constant current phase. The No. 2 charger is already in the constant voltage charging phase, and the current output power is 10kw. The third is a charger with a new car that has just been connected, and its predicted charging power is 15kw. The simulation results under the three control strategies are shown in Figure 5.
If the electric vehicle charging station has an idle charger, when an electric vehicle enters the charging station and requires charging, it should immediately provide charging service, and thus the increased charging power is incorporated into the unified coordinated power control of the charging station.
1. Electric vehicle charging socket power control strategy in charging station
During the peak period of power consumption, the grid dispatching department will provide a power value that can be consumed by the charging station
Research on Technical Methods of Charging Plugs for Electric Vehicles During Charging
The conventional charging system was designed based on internationally accepted rules of thumb before 1940. The most famous of these is the "Ampere Hours Rule": the charging current amperage should not exceed the number of hours the battery is to be charged. In fact, the speed of conventional charging is limited by the temperature rise of the battery during charging and the generation of gas.
The electric vehicle charging socket can be divided into four sub-modules according to functions: power distribution system, charging system, battery dispatching system, charging station monitoring system. Charging stations charge cars in three ways: normal charging, fast charging, and battery replacement. Ordinary charging is mostly AC charging, and 220v or 380v voltage can be used. Fast charging is mostly DC charging. The main equipment of the charging station includes a charging machine, a charging pile, an active filtering device, and a power monitoring system.
(1) Analysis of advantages and disadvantages of electric vehicle charging port during fast charging
The advantages of the fast charging mode are: short charging time; long life of rechargeable battery (can be charged more than 2000 times); no memory; due to charging in a short time (about 10~15min), the battery storage capacity can reach 80%~ 90%, similar to the refueling time, therefore, the construction of the corresponding
(1) Advantages and disadvantages
Electric vehicle charging plugs and sockets adopt this mode and have the following advantages:
1) It is beneficial to improve the efficiency of vehicle use, and also improves the convenience and speed of user use;
2) Reduce the charging cost and improve the economical operation of the vehicle;
1. Electric car charging socket solution
To get on the road, electric vehicles must first solve the problem of charging. At present, the charging methods can be divided into two categories according to the actual use situation, one is to use a public charging station to charge, and the other is to charge a private car through a household charging facility.
The electric vehicle charging station mechanical charging, that is, the battery pack quick replacement system, is achieved by directly replacing the battery pack of the electric vehicle.
1 Scale of a typical conventional charging station
According to the current data of conventional electric vehicle charging, a charging station is generally configured with 20 to 40 electric vehicles.
Energy-saving and environmentally-friendly electric vehicles have become an inevitable trend in the automotive industry. However, while national car companies are concentrating on the development of electric vehicle technology, the charging standards for electric vehicles are also an important factor affecting their popularity.
For the problem of electric vehicle charging, the most common problems that make electric vehicle users feel headaches are: "The cruising range is obviously shortened" "Easy to explode when charging" "The charger failure rate is high".
With the deployment and implementation of the new energy strategy, electric vehicles will surely enter thousands of households. The matching electric vehicle charging and replacing facilities have taken the lead in construction, and will gradually form an electric vehicle charging and replacing system combining charging piles, charging stations, power stations and distribution stations.
At the "Internet Light" Expo held during the Second World Internet Conference, electric car charging sockets also became a hot spot. And this car, turned out to be from the automotive industry, "outside the door" Baidu.
Electric car charging socket to help you briefly describe the electric car maintenance skills
Although the electric vehicle charging plug plays a big role in the realization of the function of the electric vehicle, it is not the electric vehicle sensor that can play such a large role, and it is necessary to meet the requirements of the electric vehicle. The following electric vehicle charging plug company The experts will tell you about the requirements of electric vehicles for charging plugs for electric vehicles.
1, power battery characteristics
Electric vehicle charging connectors have different charging characteristics in different types of power batteries, and the optimal charging rate varies between 0.2 and 2.0 C. When the rated voltage of the battery system is the same,
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