Expanding capacity with a centralized UPS system is difficult, writes Elina Hermunen, Global head of marketing, ABB UPS business in a recently released white paper. Engineers must touch the entire infrastructure, upstream and downstream, a time-consuming and expensive process that in most cases requires the scheduling of downtime.
Consequently, modular UPS units have become popular as a way to limit interruption of operations for maintenance or replacement. Modular UPS recently has taken a big leap forward with the development of decentralized parallel architecture (DPA) that eliminates single points of failure and downtime during maintenance while significantly easing installation.
Hermunen also forecasts that UPS modules will become increasingly important and flexible technology for use in conjunction with data center microgrids powered by renewable resources. Easily maintained UPS modules will filter the highly variable power quality these sources generate to provide a clean and steady sinus wave for data center power. She also anticipates that, before long, increasingly smart UPS systems will be able to predict power supply issues.
“Data centers are becoming more automated,” Hermunen observes, “so UPS has to integrate into monitoring and managing systems. In a few years we will be focusing not just on reliability and availability but also predictability. UPS devices will collect and analyze data to predict what is likely to happen.”