An electric vehicle charging station is a site for charging electric vehicles. With the popularization of electric vehicles, electric vehicle charging stations will surely become the focus of the development of the automobile industry and the energy industry. Electric vehicle charging stations can better solve the problem of fast charging and save energy and reduce emissions.
The development of electric vehicle charging stations in China is inevitable, and seizing the opportunity is also the way for enterprises to win. At the moment, although the country has vigorously advocated, and various companies are ready to move, it is not easy for electric vehicles to enter the homes of ordinary people in a short period of time. National policies can provide (car purchase compensation, road trips, etc.), while electric vehicle charging station networks cannot be built in a short period of time. The main reason is that fast charging of electric vehicles requires instantaneous powerful power and electricity, which cannot be met by conventional power grids. A dedicated charging network must be built. This involves the transformation of the entire State Grid. The transformation of the State Grid is not a trivial matter, and it costs a lot of money. From discussion, project establishment to network formation, it cannot be achieved overnight.
The solution that can better solve the problem of fast charging is-changing the station-using the method of replacing the battery of the car to replace the long charging process. A car needs to be equipped with two batteries. When one battery is used up, it will automatically switch to the other. At this time, you can go to the swap station to replace the used battery and install a fully charged battery. The replaced batteries are uniformly charged and maintained by the power station, provided that the charging station has a considerable number of spare batteries. The advantage of this method is that it is fast, and the user can get on the road after changing the battery, which is faster than refueling. With this method coupled with auxiliary methods such as parking lot charging piles, I believe that the popularity of electric vehicles is just around the corner.
The construction of the distribution station is designed with 2 10KV cable inlets (with 3*70mm cables), 2 500KVA transformers, and 24 380V outlets. Two of them are dedicated outlets for fast charging (with 4*120mm cable, 50M long, 4 loops), two are for mechanical charging or spare outlets, and the rest are regular charging outlets (with 4*70mm cable, 50M long, 20 loops)
b plan:
Design 2 10KV cables (with 3*70mm cables), set up 2 500KVA user box transformers, each box transformer is equipped with 4 380V outlets (with 4*240mm cables, 20M long, 8 loops), each outlet is set with one A 4-circuit cable branch box supplies power to the charging cabinet (with 4*70mm cable, 50M long, 24 circuits).
fast charging
① The scale of a typical fast charging station
According to the data on fast charging of electric vehicles, a charging station is generally configured to charge 8 electric vehicles at the same time.
② Typical configuration of power supply for charging station
a Plan, design of the construction of the distribution station: 2 10KV cable inlets (with 3*70mm cables), 2 500KVA transformers, 10 380V outlets (with 4*120mm cables, 50M long, 10 circuits).
b. Design 2 10KV cables (with 3*70mm cables), set up 2 500KVA user box transformers, each box transformer with 4 380V outlets, for charging stations (with 4*120mm cables, 50M long, 8 circuits )