AAA Dry Battery.Lithium battery vehicle-mounted UPS power supply solutions in the transportation industry

　　Lithium battery vehicle-mounted UPS power supply solution for the transportation industry. Transportation is the forerunner of the economy. Efficient transportation support capabilities and coordinated regional economic development require integrated and networked transportation. In order to prevent the impact of the aging of equipment outside the outdoor environment on the information system, you can choose lithium battery vehicle-mounted UPS power supply products for protection.

　　1. Overview of the current situation of the industry

　　Expressways have high requirements for power supply reliability, and have characteristics such as a wide range of applications, multiple load types, and complex usage environments. Some require redundant power supply methods, some require adaptability to their harsh usage environments, and some use centralized power supply. Or decentralized power supply. Therefore, to develop a lithium battery vehicle-mounted UPS power supply solution, it is necessary to make a reasonable power distribution design plan based on actual demand conditions, such as usage environment, equipment conditions, etc.

　　Under normal circumstances, the communication system should be able to ensure the safe and efficient operation of trains and provide high-quality travel services for passengers. Under abnormal circumstances, it should be able to quickly transform into a command communication system for disaster prevention and rescue and accident handling. The importance of the communication system determines that the reliability of the power supply equipment of the communication system has become a top priority.

　　Since various loads are connected to the mains power grid, it causes interference and pollution to the power grid, worsens the quality of power supply, affects the normal operation of load equipment, leads to problems such as server data loss, and causes inestimable problems to users. Estimated losses. The purpose of building a vehicle-mounted UPS power supply system is to provide high-quality, uninterrupted power supply to the electrical equipment in the computer room through the UPS power supply system to ensure the normal operation of the electrical equipment.

　　Lithium battery vehicle-mounted UPS power supply system can solve the harm caused by poor quality of mains power to front-end equipment such as power outages in data equipment rooms, voltage spikes, voltage surges, frequency drift, harmonic interference, over- and under-voltage, voltage fluctuations and noise voltages. .

　　2. Description of industry environment and load characteristics

　　Lithium battery vehicle-mounted UPS power supplies are mainly used in toll stations, tunnel lighting, and tunnel ventilation applications on highways. The power requirements are mostly 10-30KVA, and the delay is generally about 2-4 hours.

　　Application characteristics of highways:

　　1. Power grid quality

　　Local electricity and even rural electricity are used along highways, and the power grids along urban roads are relatively poor.

　　Located in a remote rural area, there are many thunder and lightning

　　2. Environmental characteristics

　　A lot of dust and car exhaust

　　Alternating hot and cold conditions in the tunnel may cause condensation

　　3. Load characteristics

　　Mainly computer loads, which are extremely sensitive to flash interruptions and require high voltage accuracy.

　　Tunnel lighting uses high-pressure sodium lamps. Low power factor will reduce the load capacity of the vehicle-mounted UPS.

　　4. Artificial characteristics

　　The UPS at each site is basically unattended, and the management and maintenance are also different.

　　3. Technical solutions

　　1. In the equipment cave in the tunnel, the space area is relatively limited, the humidity is high, and there is a lot of car exhaust and dust. At the same time, considering that many tunnels are located in mountainous areas, it is recommended to add a C-class lightning protector to the input point of the lithium battery vehicle-mounted UPS. When the load is tunnel lighting and high-pressure sodium lamps with inductive ballast are used, a reactive power compensation device must be added. Otherwise, the power of the load The factor is very low, resulting in a huge waste of UPS power.

　　For areas with high humidity, in addition to strengthening the chassis protection and circuit board coating of the lithium battery vehicle-mounted UPS power supply itself, it is recommended that users configure a dehumidifier to ensure an ideal humidity environment in the equipment warehouse and improve the reliability of UPS operation.

　　2. Toll station equipment mainly includes: computers, printers, electric railings, lighting, monitoring, signal lights, sensing equipment, etc. Tunnel equipment mainly includes: high-voltage sodium lamps, ventilation fans, etc.

　　3. Based on the on-site characteristics of highways, after comprehensive analysis, we provide corresponding solutions for toll stations and tunnel equipment, including a series of products used in vehicle-mounted UPS.

　　In today's era of intelligent transportation, a series of safeguard measures need to be established in various fields such as data storage, sharing, application, and transmission. Electricity guarantee is the foundation. Without electricity, all safeguard measures are impossible; and lithium battery vehicle-mounted UPS power supply is the core component of power security.

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