Jiangsu fast charging station was put into operation, taking the lead in realizing the echelon utilization of electric vehicle batteries

　　It is understood that my country has ranked first in the global production and sales of new energy vehicles for three consecutive years. As of the end of last year, the total number of new energy vehicles promoted in my country has exceeded 1.8 million. Nanjing has developed 26,900 new energy vehicles of various types, which account for more than 30% of the province's total, and the cumulative development volume ranks first in the province.

　　The expressway service area has relatively abundant site resources and location advantages with less impact and far from the main network. This time, Nanjing Power Supply Company has built 4 car charging parking spaces (8 in the long-term plan) in the two-way Liuhe service area of Changshen Expressway, a 630 kVA box transformer, 4 120 kw split DC chargers, and one Each charging pile corresponds to a parking space; the photovoltaic system is arranged above the canopy of the charging parking space, using box-type energy storage equipment, and is arranged outdoors. The energy storage configuration capacity is 50 kWh, and the photovoltaic capacity is 10 kW. A photovoltaic power generation unit with a capacity of about 12 kilowatts will be built on the canopy of the charging parking space, and a cascade utilization battery unit with a capacity of 50 kilowatts × 2 hours will be configured.

　　The power station is equipped with a comprehensive energy management system, which can control the energy flow of the energy storage unit according to peak and valley periods and charging conditions, realize functions such as peak shaving and valley filling, valley electricity utilization, and new energy consumption, and improve the reliability and economy of system operation. It has strong practicability and reproducibility.