• • • DATA CENTRE MANAGEMENT • • •
The rising importance of high-density UPS systems
in AI-driven data centres By Arturo Di Filippi, Offering Director, Global Large Power at Vertiv
globally, pushing them toward higher density configurations to accommodate escalating computational demands.
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As AI continues to revolutionise industries, uninterruptible power supply (UPS) systems play a critical role in addressing the challenges of densification, supporting operational efficiency and maintaining uninterrupted performance under variable loads.
The growing challenge of densification
AI-driven applications rely on high-performance graphics processing units (GPUs) and central processing units (CPUs) that consume substantial amounts of power. To maximise efficiency and capacity, data centres are densifying their infrastructure, packing more computing power into smaller footprints. While this approach optimises space, it introduces complexities in power distribution, thermal management and overall system reliability.
In densely packed environments, even minor disruptions in power delivery can cascade into significant downtime or data loss. UPS systems designed for high-density applications are vital for
he rapid growth of AI and other high-performance computing (HPC) workloads has transformed data centres
addressing these challenges. They allow consistent power supply, stabilise load fluctuations and offer compact solutions that align with space constraints in modern data centres.
UPS Systems: Bridging energy
efficiency and resilience In environments where every watt of energy matters, energy efficiency becomes paramount. Modern UPS systems can offer double-conversion energy efficiencies of up to 97 per cent, minimising energy waste and reducing operational costs. This efficiency is critical not only for managing energy- intensive AI applications but also for advancing sustainability goals by lowering the carbon footprint of data centres.
Energy efficient UPS systems are particularly essential for high-density configurations, where power demands are concentrated. By delivering power with minimal loss and enabling optimal load balancing, these systems support the high-density demands of next-generation computing environments.
Resilience under rapid load changes
AI workloads are characterised by their unpredictability and this variability can strain
traditional power systems, with the possibility of performance degradation or equipment damage. UPS systems designed for AI and high-density applications incorporate advanced load management capabilities to address these challenges. They can dynamically adjust to rapid load changes, maintaining consistent output and protecting critical infrastructure from power anomalies. By isolating sensitive equipment from fluctuations, UPS systems improve reliability and allow uninterrupted performance even under extreme operating conditions.
Compact design for space optimisation
One of the most pressing challenges in densified data centres is the effective utilisation of limited space. Traditional UPS systems often require significant room for installation and maintenance, which is not feasible in high-density setups. Modern UPS solutions prioritise compact designs without compromising on performance. Features such as modular architectures, integrated back feed protection and onboard fault isolation systems enable these units to operate efficiently in constrained spaces. This approach optimises floor space usage while maintaining the high-power availability and reliability required for essential applications.
Modular solutions for
high-density applications Scalability is a critical consideration for data centres looking to accommodate future growth. Modular UPS systems provide a flexible solution, so operators can add or replace components as needed without disrupting operations. This scalability is particularly beneficial for high-density setups, where power requirements can increase rapidly due to the addition of new equipment or changes in workload patterns. Modular architectures also simplify maintenance and upgrades, designed to reduce downtime and allow continuous operation.
In a modular UPS system, each power module features dedicated, segregated controls. In case of a fault, the affected module isolates itself to safeguard the remaining modules, helping to provide uninterrupted operation. The system can also incorporate a continuous-duty solid-state static bypass switch, an advanced feature designed to enhance operational performance. This design optimises the bypass line through seamless transitions between power sources, providing stable power delivery.
54 ELECTRICAL ENGINEERING • FEBRUARY 2025
electricalengineeringmagazine.co.uk
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