Shanghai ahead of the layout electric car charging stations
Expo project integrated smart grid laptop battery is demonstration of China’s first smart grid demonstration projects in Shanghai World Expo Park built the first intelligent network, application and demonstration of new energy sources include access (such as the East China Sea Bridge wind farms offshore, Chongming solar photovoltaic World Expo venues Solar photovoltaic electricity), storage of energy, intelligent post, Electric car loading and unloading and network, etc. 9.
“Roewe 350″ fast-charge, can run 310 km a half-hour
Museum of the charge and discharge are the site of the station network debugging national employee Shanghai Jiulong Technology Jinbao June, said: “This device can handle large commercial vehicles from small cars of different models, there are AC and CC are two user interfaces truck choice. electric load power normally about 30 kilowatts, or about 15 kilowatts of small cars. “According to reports, a” Roewe 350 “quick half an hour loading electric vehicles can travel 310 km.
Our reporter went to Shanghai Cao Xi-based energy conversion in the screen information system monitoring, real-time surveillance vehicles Caoxi electrical charging and discharging station, the National Museum of the load and power plants discharge and Huxi, Shanghai and South 825 Road, public transport, public transport, etc. 20 Road station information load, and in which two functions with charge and discharge control station Charging - “connected to a charger for electric vehicles, electric network programming as directed during peak periods or during a temporary loss of excess energy to the grid, it is the” discharge “.” based instructors and interpreted.
If the concentration of a large number of charging electric vehicles, may pose problems for peak shaving, and the booking fee “mode” can reduce conflicts: electric cars at the expense of lead time set, can not reach the peak load displacement users to use low power at night to cool the car, then enjoy the offer price.
Charge and discharge the functions of electrical charge traveling in both directions
Future large-scale applications of electric vehicles, the battery capacity is expected to reach tens of kilowatts. Because electric cars can “discharge” - where the power back to the battery to lose power if the effective use of that charge, discharge, two-way function, can play a significant effect of load shifting, reduce the difference between the high power peak and valley to improve the rate high electric charge, lower energy requirements for reserve capacity.
Shanghai Municipal Electric Power Technology and Dean Yu Guoqin placed on a data set, “because 90% of the time in the suspended state, the electric trucks can be used as mobile storage units.”
V2G technology support and discharge, the State has suspended power electric cars can use up. Forget account document to each design 100-kilowatts of electric car fast discharge, discharge in 4000 vehicles at the same time, the peak can be resolved in the network capacity of 400,000 kilowatts of electricity needed, but the average cost of thermal power units of about 6,000 yuan / kW, the equivalent of saving 2.4 billion investment. All electric vehicles such as the absorption of low power in the night, resource conservation and efficient use of the best effect. V2G technology is the intelligent network will bring huge benefits to society in the future.
Driving the same mileage, electric car electricity costs one third the cost of oil. According to statistics, Shanghai now has 2.7 million motor vehicles, of which only 1259 types of electric vehicles, pure electric vehicles, 503. Charging station, charger and charging interfaces, inadequate infrastructure, promote the use of electric vehicles affects the main obstacle. In this regard, deputy director of Shanghai Shang Yuying by letter, said loading and unloading of electric vehicles and distributed energy storage technology systems and intelligent network equipment will be one of Shanghai’s major industrial development. “By the end of this year, Shanghai plans to build 360 loader, hoping to reach 5,000 within 3 years. We must accelerate the development so that Shanghai became the national power of high-capacity storage technology research and development centers and engineering centers and to move from R & D Investment Scoreboard become an important basis of relevant domestic industries. “
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