Charging solution that increases community charging capacity by 20 times: distributed shared charging piles

At present, electric vehicle charging piles are mainly divided into public charging piles and private charging piles. In order to alleviate the " range anxiety", private electric vehicle owners hope to build private charging piles in their place of residence. However, it is also difficult to build private charging piles in the community. First of all, there must be a property parking space or a long-term rental parking space. In addition, the consent of the community property management is required, and then the power grid company will survey and meet the installation conditions before the wiring and installation of the charging piles can be carried out. The community property is mainly worried that the community's self-provided power capacity cannot meet the future increase in electric vehicle charging needs, which will bring unnecessary trouble to property management.

For example, the distribution box in a residential area has a load capacity of only 20kw for charging electric vehicles. If an electric car owner applies to install a 10kw private charging pile, it can only meet the needs of two electric vehicles. If the owner of an electric car wants to install a private charging pile in the future, the distribution box will need to be expanded and modified.

However, if most of the vehicles in the residential area are stopped from 18:00 on the same day to 7:00 the next day, the charging capacity available for the community during this period is 20kw*14h=280kwh. According to statistics, 90% of private cars travel within 40 kilometers a day. If the battery capacity of an electric car is 40kwh, it will be charged when half of the power is lost. 20kwh can travel about 120 kilometers, that is, it will be charged once every three days. Then 280kwh/20kwh*3 days=42 vehicles. In this way, a community garage with only 20kw distribution capacity can actually meet the daily charging power needs of 42 electric vehicles. If the battery life ratio is larger, the coverage will be greater. It can be seen that installing private charging piles in garages with insufficient distribution capacity is a great waste of effective resources.

How can we make full use of the existing power distribution load in the garage? In fact, we only need to transform the original power distribution facilities and charging terminals, add distributed intelligent control modules, and the car owner can connect the electric car to the distributed shared charging terminal and use the mobile app to apply for the use of the charging pile on the cloud platform.

For example, when an electric car owner returns home at 7 p.m. and parks his car, he connects the shared charging pile to the electric car. The battery management system of the electric car immediately exchanges data with the cloud control platform. Data such as the chargeable capacity and charging time of the electric car can be displayed on the mobile app. The owner opens the app to check the available quota of the distributed shared charging pile. The app shows that no more than 20 kW can be charged from 7 p.m. that night to 7 a.m. the next morning. If the owner agrees to the charging contract, the electric car will be charged within the contract period, and the fees will be settled in the owner's account after charging is completed.

When multiple electric vehicles make charging requests, the cloud control system can optimize the charging plan during the contract period based on the usage habits of the connected electric vehicles and big data analysis to meet the needs of as many users as possible. Additional fees may be charged for users who have large charging needs or want to fully charge in advance.

In this way, no matter where the charging pile is installed in the community garage, the total amount of charging load can be controlled not to exceed the maximum capacity, and the charging positions can be randomly distributed, making full use of the community's existing resources and facilitating management. Using the cloud platform and app to complete charging task allocation and payment management, you can get a flexible price model and electricity usage time control.

In addition, if the charging line of a distributed shared charging pile can cover 3-4 adjacent parking spaces, the radiation effect of a charging pile can be increased by 3-4 times in the initial stage of construction. A garage with 1,000 parking spaces only needs less than 300 charging terminals to achieve full parking space coverage, thus achieving extremely high social and economic benefits with a small investment.

Therefore, in the future, when the number of electric passenger cars continues to increase, if private charging piles are installed in large numbers in residential areas or ordinary charging piles are installed in office and commercial garages, not only will the configuration efficiency be greatly wasted, but the charging and discharging cannot be orderly controlled, and if they want to connect to the V2G system in the future, they will face secondary transformation. Combining the V2G model can greatly facilitate the profit model of charging pile operation.

As a winner of Toutiao's Qingyun Plan and Baijiahao's Bai+ Plan, the 2019 Baidu Digital Author of the Year, the Baijiahao's Most Popular Author in the Technology Field, the 2019 Sogou Technology and Culture Author, and the 2021 Baijiahao Quarterly Influential Creator, he has won many awards, including the 2013 Sohu Best Industry Media Person, the 2015 China New Media Entrepreneurship Competition Beijing Third Place, the 2015 Guangmang Experience Award, the 2015 China New Media Entrepreneurship Competition Finals Third Place, and the 2018 Baidu Dynamic Annual Powerful Celebrity.