The report of the Nineteenth National Congress of the Communist Party of China pointed out that the key to the fight against pollution is to win the “Blue Sky Defense War.” The State Council’s “Notice on Printing and Distributing the Three-Year Action Plan for Winning the Blue Sky Defense War” clearly stated that it is necessary to strengthen the prevention and control of pollution from non-road mobile machinery and ships, and promote the use of shore power by ships and aircraft calling at ports.
Beijing Daxing Airport has integrated green development through the entire process of airport construction through concept, technology, and management innovation. While ensuring operational safety, it has created a beautiful ecological environment and created a model case of a green airport. In the construction of this representative project, SCU relied on its professional capabilities in the field of power electronics to develop and produce mobile energy storage high power charging vehicles, which became an emergency charging station for new energy electric vehicles operating in the airport.
A charging station that can move freely with demand.
SCU mobile energy storage charging vehicle takes the pure electric box transport vehicle as the carrier, and integrates the energy storage system, charging pile system, fire extinguishing device and intelligent operation platform to form a closed-loop ecological project integrating vehicle, energy storage and charging.
As a mobile energy storage charging vehicle, its remarkable advantage is that it is flexible and convenient, and can shuttle around every corner of the airport when there is demand. It shows the advantages of rapid response, flexibility, strong mobility and high safety performance in practical application, which can meet the emergency charging needs of new energy electric buses, commercial vehicles, passenger vehicles and other electrical equipment caused by regional power failure or other factors, and can also meet the temporary charging needs of other special places.
In addition, the charging vehicle adopts the integrated storage and charging solution with mature technology, adopts the common DC bus technology, and has a built-in 180kW / 200kwh energy storage charging system, which achieves high efficiency and low energy consumption on the premise of stable operation. At the same time, it also has strong scalability and can selectively access photovoltaic system, wind power generation system, regulatory cloud platform, etc.
High security and reliability.
In the process of “power transfer” of mobile energy storage charging vehicle, people can not help but wonder: where does the power come from? Is charging safe? With these questions, let’s take a look at the battery system of mobile energy storage charging vehicles.
The current mainstream chemical energy storage batteries include ternary batteries, lithium iron phosphate batteries and lithium titanate batteries. Among them, lithium titanate batteries are known for their excellent performance and safety. Compared with the traditional material “carbon anode”, the “lithium titanate anode” has many advantages, such as good cycle performance and stable discharge voltage; it has a higher lithium ion diffusion coefficient; it is not easy to produce lithium crystal branches; the charging power density is high, and the charging High efficiency of energy conversion to and from discharge; wide ambient temperature range (from -40°C to 55°C); good endurance to extreme working conditions, etc.
For this reason, the SCU mobile energy storage charging vehicle uses lithium titanate batteries and is equipped with a BMS battery management system, which has multiple functions such as charging and discharging voltage, current, SOC and temperature collection, thermal management, communication and alarm, data storage, etc.. In view of the multi-level characteristics of the energy storage battery array system, the BMS system adopts a distributed structure and a three-level management system to support the refined management of each battery cell, ensuring the safe, reliable and stable operation of the lithium battery rack mount energy storage system.
Experience a more intelligent and friendly charging method.
To build a smart airport, it is necessary to integrate cutting-edge technology with real needs, which is reflected in the mobile energy storage charging vehicle project, which is how to provide users with a more efficient, convenient and friendly charging experience.
SCU is equipped with a dual-gun flexible DC charger for the charging car. It has an intelligent DC charging system that integrates power conversion, charging control, management, query, display, and background communication. It communicates with the vehicle management system to achieve the entire Intelligent control of the charging process.
Fully considering the actual application of the airport, SCU pays more attention to the convenience of “mobile charging”, combined with the self-developed capability of the charging pile system, deepen the original charging pile, and separate the power distribution system from the charging system. Let users feel that even for emergency rescue, they can enjoy a simple and convenient charging experience.