"China's new energy automotive industry is at a critical stage of climbing, and the electric vehicle industry is still on the eve of its eruption. The key to the popularity of electric vehicles is power battery technology and the convenience of charging." December 10, National Energy Administration Deputy Commissioner Liu Baohua said at the 2nd 2017 China Electric Vehicle Charge and Replacement Services Innovation Summit Forum.
At present, the construction of charging infrastructure in China has benefited from government support and market guidance and has been rapidly developed. On the technological route, new technologies such as wireless charging and high-power charging are also continuously innovating and developing, providing a solid foundation for the development of China's electric vehicle industry.
Among them, whether or not the charging infrastructure can provide convenient and quick charging or replacement services has always been an important factor in whether users are willing to purchase electric vehicles.
Industrial layout to be improved
China has become the country with the largest number of electric vehicles in the world and the largest number of public charging stations built and put into operation.
As of October this year, the number of public charging piles built nationwide was 195,000, an increase of 82.2% over the same period of last year, and the number of private charging piles was 188,000, an increase of 214% over the previous year.
Although China's charging infrastructure construction has been fully rolled out, there is still a problem of a weak foundation and insufficient development potential.
At the conference, Guo Wei, deputy inspector of the National Energy Administration, said that the current problems in the field of charging piles can be summarized as four common problems such as interconnection, low utilization, hidden dangers, and user-specific piles.
First of all, due to the large number of vehicle pile manufacturing companies, the charging interface of the vehicle pile, especially the incompatibility of the DC interface, still exists, and the level of interoperability of the operator platform is relatively low.
Secondly, the number of new energy vehicles is relatively small, most users are self-charging piles, the average utilization rate of public charging piles is less than 15%, and the profitability of the industry is relatively low. The business model needs further exploration.
However, due to the unreasonable layout and poor maintenance, there have been many breakdowns and zombies in some areas. In addition, the charging interface security standards have yet to be improved, and charging information and payment are also facing some risks of network security loopholes.
In addition, due to the large cost of power supply capacity increase in the red line of the community, the institutional obstacles to the installation of private charging piles still exist.
The National Energy Board suggested that the next step is to accelerate the development of advanced charging technologies, aiming at the development direction of standardization, networking, and intelligence, supporting the business model of innovation, charging, and replacement, organizing the construction of a national-level charging service platform, and jointly promoting the charging basis. Healthy and sustainable development of facilities will accelerate the green transformation of green travel and transportation energy.
Guo Wei said that it is necessary to speed up the promotion and application of flexible charging technology, accelerate key technologies such as wireless charging and smart charging, and make breakthroughs as soon as possible. Promote the sharing of data on enterprise platforms such as State Grid, Putian New Energy, Special Calls, and Wanbang, strengthen access to the network and interconnection of public piles and individual piles. Vehicle piles can be shared as soon as they enter the network, and the proportion of building piles, networks, and stations can be reduced. The efficiency has been greatly improved.
In view of the relatively weak profitability of current charging facility suppliers, Guo Wei proposes to promote the formation of a sustainable business operation model through innovation. We must support the development of crowdfunding and construction of piles, make full use of social resources to participate in the construction of charging infrastructure, encourage charging service companies to develop commercial cooperation with vehicle companies, realize the coordinated development of vehicle piles, explore the franchise model, and attract professional charging operators to take charge of the operation and maintenance.
In addition, leveraging the leverage of financial awards at all levels to study and learn from the experience of developed countries in Europe and the United States, we actively promote the role of charging infrastructure to promote alliances and other industry associations, and accelerate the organization and promotion of national service platforms on the basis of information platforms of operating companies. The construction.
Build smart car networking ecosystem
What can be determined is that the solution to the charging problem cannot be separated from the participation of multiple parties. Therefore, cross-border cooperation, platform interoperability, system interconnection, and accumulation of all kinds of key resources and open sharing are indispensable. Therefore, on the common topics of smart car networking ecology, innovation, charging and replacement network construction and operation and maintenance services, representatives of charging companies are contending.
“Compared to international charging brands, we are not only behind the country, but have even surpassed. In the field of wireless charging, we all know that wireless charging is only available for high-end brands such as BMW and Porsche. We cannot open this barrier in China, domestic domestic brands. Wireless charging is rarely used,†said Shao Danwei, chairman of Wanbang New Energy Investment Group Co., Ltd.
However, the current barrier has been broken, and now IMC has signed confidentiality agreements with several large multinational car companies, allowing robots to be charged instead of wireless charging. The cost of robot charging is lower, and the area is smaller, more flexible, and more convenient. “The key is that Chinese companies have a face-to-face approach with Qualcomm. Chinese companies are fully expected to have several companies in the charging industry within eight to ten years and can represent our country to grab a share of the international market.†Shao Danwei said that Chinese car companies have This confidence.
Wu Zesheng, deputy general manager of Sichuan Dongfang Electric Automatic Control Engineering Co., Ltd., believes that the smart operation and maintenance system is a must-have feature for future charging stations. First, we must design a modular software structure, add intelligent fault diagnosis functions, powerful on-line forecasting functions, and cleaning and management functions for photovoltaic modules. At the same time, we must also have accurate power generation forecasting capabilities and be able to perform well with the grid. Matching, finally, perfect monitoring system is indispensable.
Yu Dexiang, chairman of Qingdao Trid Electric Co., Ltd., said that it is very important to design the modular structure of charging products. With the continuous development of electric vehicles and the number of charging piles reaching the level of 100 million, it will require millions of professional maintenance workers to repair the charging piles, and charging operators will have difficulty supporting such high labor costs.
Due to the fact that many charging posts have not been designed for industrial products, their life expectancy is at most three years, and after three years, the failure rate will increase significantly, leading to a worse user experience.
Yu Dexiang suggested that in 2020-2030, an electric vehicle charging and charging network should be established instead of just one charging pile. The difference between the two is that the charging and replacement network is a set of controllable, intelligent and environmentally friendly. The system provides the basis for orderly charging and orderly “sale of electricity†in the future. Second, the outdoor operation of the charging module must meet the standards of industrial products.
Shen Fei, vice president of Weilai Automotive, said that by relying on cloud computing and artificial intelligence, electric vehicle owners can provide more convenient charging and replacement services. At present, the site selection can be determined by data real-time navigation data to determine the service radius of the charging and replacement station.
Zhang Yong, deputy general manager of Beijing New Energy Automobile Co., Ltd., stated that difficulties faced by self-owned brands indicate that the promotion of electric taxis and network vehicles is facing a big problem. All drivers are very dissatisfied with charging time. . The fastest fast charge also takes more than 40 minutes. Now the construction of charging facilities has yet to be improved, and charging is not yet convenient.
“So we proposed a replacement mode that takes only 2 minutes and 46 seconds. This battery can be replaced. We have now done a series of operation of the substation in Beijing, Guangzhou, Xiamen, Lanzhou, and Tianjin. Exploring, but also face some problems in the operation of the transformer station." Zhang Yong said.
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