Shulou(Shulou.com)12/24 Report--

From December 19 to 21, the first "China Automobile charging Ecology Conference" was held in Fuyang, Hangzhou. With the theme of "meeting New challenges and comprehensively promoting the High-quality Development of Rechargeable Infrastructure", the conference brought together business leaders, top experts and local alliance leaders of the recharging industry to discuss the countermeasures, methods and paths to build a high-quality development pattern of the rechargeable power industry. Liu Dawei, president of Huawei's digital energy charging network business, was invited to attend and put forward thoughts and discussions on the sustainable development of high-quality charging infrastructure.

Liu Dawei said that in the face of the dual-carbon goal, traffic electrification and new energy power reform are the two major national strategies of our country. Charging infrastructure connects and carries the two major changes of new energy vehicles and new power systems, and plays an important role in information exchange hub and energy management node.

Liu Dawei, President of Huawei Digital Energy charging Network

Building a high-quality charging infrastructure target network based on ultra-fast charging

At present, new energy vehicles have entered a period of explosive growth, and show a comprehensive high-voltage trend. In the field of passenger cars, with the mass production of B-class and C-class middle and high-end models and the large-scale development of core components such as silicon carbide power semiconductors, high-rate batteries and electric drive systems, high-pressure architecture will accelerate the popularity of A-class passenger cars. High pressure is also rapidly extending in the field of commercial vehicles. Through ultra-fast charging, energy replenishment efficiency is improved, vehicle costs are greatly reduced and operating income is improved. It is estimated that by 2026, the new sales of high-pressure models will account for more than 40%. The market space for high-pressure platform models continues to expand.

However, at present, there are many problems in domestic charging infrastructure, such as low power, low voltage, poor charging experience and so on, which have lagged behind the development needs of new energy vehicles. Liu Dawei pointed out: in order to meet the needs of charging infrastructure to support the reform of new energy vehicles and new power systems, it is necessary to build a high-quality charging infrastructure target network based on ultra-fast charging. He believes that the target network of high-quality charging infrastructure is mainly divided into five major application scenarios: intercity charging, urban public, dedicated field stations, resident charging and destination charging, etc., and at the same time, it is necessary to enhance the interconnection between the charging grid and the power grid and vehicle interconnection, and promote the green coordinated development of source, grid, load, storage, vehicle and other fields.

Huawei fully liquid-cooled supercharge helps to build a new type of electric travel energy infrastructure

What is a high quality charging infrastructure? Huawei Digital Energy believes that it should include the following five dimensions:

Users' high experience: electric vehicle users should be able to charge, charge quickly and charge well, so that where there is a road, there will be overcharging and fast charging, bringing the same charging experience as refueling.

High quality of equipment: as an infrastructure, it should have high availability, long service life, and support future-oriented technologies and capacity evolution, such as "integrated optical storage and charging, V2G".

High return on investment: for station investors, low loss of charging equipment, high performance brings high power utilization, stable operation of equipment brings high time utilization and low maintenance cost. At the same time, the iteration of new energy models is fast, and the full coverage of stock models and supporting the future evolution are also very important for the return on investment.

High efficiency of the vehicle network: for automobile companies, the large-scale construction of high-quality charging infrastructure can convert large-capacity but slow-charging batteries into ultra-fast charging packs with small capacity, reducing vehicle weight and cost; for industrial upgrading, ultra-fast charging can solve the concerns of high-end car owners; for the power grid, charging equipment with energy dispatching capacity can alleviate the pressure of the power grid and improve the stability of the power grid.

High utilization of resources: through overcharging and fast charging technology to improve the utilization rate of valuable land and power resources, but also through centralized construction and centralized management to reduce the probability of charging accidents and property losses.

The construction of high-quality charging infrastructure requires innovative technical architecture and solutions. Huawei fully liquid-cooled overcharge helps to create a new type of electric travel energy infrastructure through the characteristics of "full liquid cooling, modularization, intelligent power pool, DC bus" and so on. The maximum power 600kW of the overcharging terminal can approach "one kilometer per second" as soon as possible, creating the ultimate charging experience. The charging range supports 200-1000V and is compatible with a variety of existing and planned models. The DC bus architecture allows devices to achieve efficient AC / DC stacking and supports the evolution of related innovative technologies in the future. At the same time, by adopting advanced liquid cooling technology, the equipment has the advantages of low noise, good protection, high reliability and long service life of more than 15 years. Through power pooling and intelligent power scheduling, support the flexible configuration of overcharging and fast charging, help double the station turnover, and help operators to achieve commercial success.

"charging cost C-LCOE" is a more scientific index for measuring the return on investment in charging stations.

Liu Dawei also stressed that charging infrastructure as a production tool, charging capacity is determined by "power utilization and time utilization", and "C-LCOE" is a scientific method to measure the investment income of charging stations, which will guide the sound and sustainable development of high-quality charging infrastructure.

Huawei's all-liquid-cooled overcharging solution evaluates the return on investment of high-speed and urban public stations based on the charging cost "C-LCOE". The results show that the return on investment of stations with high-quality charging equipment is increased by 40%, and the cost of charging is reduced by 20% +. Take a service area in Guangdong as an example, in the case of the same capacitance, the cumulative charge of Huawei equipment is increased by 56.9%, and the cost of charging power is reduced by 29.6 percent, which brings higher benefits for operators to reduce the cost of charging electricity. Facing the future, Huawei will join hands with automobile companies, power grids, operators and partners to create an open, cooperative and win-win overcharging ecosystem and build a high-quality and sustainable intelligent charging network.

At this forum, Huawei Digital Energy, together with China Automotive Industry Association, China Automotive Research New Energy vehicle Inspection Center (Tianjin) Co., Ltd., Guangdong Transportation Development Co., Ltd., jointly issued the White Paper on the Sustainable Development of High-quality charging Infrastructure, together to guide the charging industry to a higher quality and sustainable direction, promote industrial upgrading and accelerate the electrification process of the automobile industry.

* the charging rate is measured in the laboratory environment. The actual use may vary slightly due to differences in vehicle models, software versions, vehicle power consumption, use conditions and environmental factors. Please refer to the actual use.

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