Transportation
From urban arteries to rural endpoints, empowering modern transportation with supremely reliable power solutions
Industry Panorama
The Digital Transformation Journey of the World's Largest Transportation Network

By the end of 2025, China's railway operating mileage exceeded 160,000 km, with high-speed rail surpassing 48,000 km, covering 95% of cities nationwide with urban populations exceeding 500,000. Urban rail transit now operates over 330 lines with total mileage exceeding 12,000 km, firmly ranking first in the world. 


Digital and intelligent upgrades in the transportation sector are now deeply underway across all scenarios: new metro lines universally adopt fully automatic operation systems (FAO), smart highways are rolling out vehicle-road coordination and autonomous driving tests at scale, and major aviation hubs are introducing AI-based scheduling and paperless customs clearance. These transformations impose unprecedented demands on underlying power assurance systems — from microsecond-level uninterrupted switching to all-weather stable operation in harsh environments including high humidity, high temperature, salt spray, and strong vibration.


Industry forecasts project that by 2027, the digitalization rate of transportation infrastructure will exceed 70%, with the smart transportation market expected to surpass one trillion yuan. Power systems are evolving from their traditional role as backup protection into core nodes of transportation energy management.

Industry Challenges
Zero-Interruption Operation
Daily urban rail transit passenger volume has exceeded 100 million trips. Any power interruption could trigger large-scale operational delays or even safety incidents. Core subsystems including signaling, communications, automatic fare collection (AFC), and platform screen doors demand extremely high standards for power continuity, purity, and redundant switching speed. Train headway has been compressed to under 90 seconds, with nighttime maintenance windows reduced to just 2–3 hours. Under such tight operational schedules, power equipment must feature maintenance-free or ultra-simple maintenance characteristics, while supporting remote monitoring and intelligent fault warning to ensure O&M teams efficiently complete inspection tasks within limited window periods.
Energy Saving & Efficiency
The transportation industry is one of the key sectors for societal energy consumption and carbon emissions. Although rail transit unit carbon emissions are only one-tenth of automobiles, its massive electricity consumption represents enormous energy-saving potential. According to estimates, national urban rail transit annual electricity consumption has exceeded 20 billion kWh, with ventilation & air conditioning, escalators/elevators, and traction power systems accounting for the highest shares. Improving power equipment energy conversion efficiency, introducing energy storage and regenerative energy feedback technologies, and leveraging AI algorithms for dynamic load distribution optimization have become key technical pathways for achieving “dual carbon” goals in the transportation sector.
Intelligent O&M
The core characteristic of smart transportation systems is “ubiquitous connectivity, always online” — massive sensor, camera, and edge computing node data poses entirely new challenges for network and power reliability. Traditional manual inspection models can no longer meet growing O&M demands. Next-generation transportation power systems require full-lifecycle digital management capabilities: from equipment self-check, battery health prediction, and fault root cause identification to intelligent spare parts scheduling — achieving end-to-end visualization and automation, dramatically reducing manual intervention rates and improving system availability.
Solutions & Products
Urban Rail Transit
Metro / Light Rail
Aviation Hub
Smart Port
Energy Storage Converter & Step-Up System
Smart Port Regenerative Energy Feedback System
Success Stories
Cross-Border Railway Benchmark — China-Laos Railway Full Line Power Assurance
The China-Laos Railway is a flagship project of the "Belt and Road" initiative between China and Laos, stretching 1,035 km from Kunming, Yunnan in the north to Vientiane, Laos in the south. Since opening in December 2021, same-day travel between Kunming and Vientiane has become a reality, significantly boosting logistics efficiency and personnel exchange between Southwest China and Southeast Asia, injecting powerful momentum into economic and social development along the route.
Solution
To address the complex operating conditions of the China-Laos Railway — traversing the mountains of southern Yunnan and tropical jungles of Laos with a bridge-to-tunnel ratio of 87% — we tailored a comprehensive railway-dedicated power solution. All 27 stations and communication base stations along the line were equipped with Atlas-A3GEL Series industrial-grade UPS devices, ensuring critical loads including signaling, communications, and dispatching systems operate continuously and stably under high-temperature, high-humidity, and grid fluctuation conditions, providing reliable power for cross-border passenger and freight transport.
Customer Value
The modular parallel shared battery bank architecture significantly reduces upfront battery investment and ongoing replacement costs. The rectifier and inverter each use independent modular designs — when any module fails, the system automatically isolates the faulty unit and reconfigures the remaining modules to continue running, ensuring uninterrupted power to loads. Overall availability exceeds 99.9999%, and maintenance personnel can replace faulty modules online without interrupting power supply.
Chengdu Metro Line 19
Chengdu Metro Line 19 is a rapid rail transit express connecting Chengdu Shuangliu and Tianfu International Airports, with a maximum operating speed of 160 km/h, making it one of the fastest metro lines in China. The project imposes extremely high power assurance requirements on core equipment including communication/signaling systems, integrated supervisory control systems (ISCS), and AFC ticketing systems, requiring UPS systems with ultra-high reliability and rapid switching capability to support round-the-clock safe operation.
Solution
Astralis Cloud designed a fully redundant power architecture for Chengdu Metro Line 19 based on Atlas-A3GEL Series rail transit-dedicated UPS. The solution covers power assurance for communications, signaling, integrated supervisory control, and AFC systems, using a dual-bus power topology to ensure no single-point failure affects system availability.
Customer Value
The Atlas-A3GEL Series features a built-in battery regenerative discharge function that tests battery capacity without affecting loads, feeding discharge energy back to the grid — saving both labor and electricity. The DC bus electrolytic capacitor online monitoring function continuously assesses capacitor health, provides early aging warnings, and significantly reduces the probability of sudden failures.
Xi'an Metro Line 16
Xi'an Metro Line 16 is the first north-south rail transit backbone in Xixian New District, fully adopting fully automatic driverless technology (GoA4 grade) and serving as a national demonstration project for next-generation smart metro. The project imposes extremely high power assurance requirements on core equipment including signaling systems, communication systems, integrated monitoring, and smart O&M platforms, requiring UPS systems with ultra-high reliability and self-healing capabilities to support 24/7 unmanned safe operation.
Solution
Astralis Cloud delivered a high-reliability power assurance solution for Xi'an Metro Line 16's fully automatic operation scenario. All 9 stations along the line were equipped with Atlas-A3GEL Series rail transit-dedicated UPS units paired with a distributed battery management system (BMS), enabling 24/7 online battery health monitoring and intelligent early warning. The solution supports a dual-bus redundant architecture with automatic switching capability, meeting the strict zero-interruption power requirements of GoA4 driverless operation.
Customer Value
Fully automatic operation lines have extremely high power reliability requirements. This solution provides end-to-end power assurance from input to load for the customer. The intelligent BMS continuously monitors key parameters such as voltage, internal resistance, and temperature for each battery bank, identifies anomalies early and pushes alerts — allowing O&M personnel to understand equipment status without being on-site. This dramatically reduces full lifecycle O&M costs and sets a benchmark for scaling up driverless metro line deployments.