FOCUS ON POWER
MANUFACTURER - RIELLO UPS IRELAND
Leo Craig, Managing Director, Riello UPS Ireland.
RIELLO UPS IRELAND MANAGING DIRECTOR LEO CRAIG EXPLORES ULTRA-HIGH EFFICIENCY MODULAR UPS SYSTEMS AND HOW THEY HELP DATA CENTRES AND OTHER CRITICAL INFRASTRUCTURE REDUCE BOTH THEIR TOTAL COST OF OWNERSHIP AND ENVIRONMENTAL IMPACT…
Introducing the next generation of modular UPS
Smart, scalable, sustainable power We’ve embraced the potential of silicon carbide components in our new Multi Power2 modular UPS. Building on the near decade of success of our original award-winning Multi Power series, Multi Power2 comprises the 500 kW MP2 and the scalable M2S, which is available in 1000-1250-1600 kW versions. Its modular design still provides risk-free ‘pay-as-you-grow’ scalability at the same time as reducing the risk of wasteful and costly oversizing at initial installation, helping to control the total cost of ownership over time. Multi Power2 incorporates high density, SiC-based 67 kW power modules capable of best-in-class efficiency of 98.1% in online UPS mode, ensuring maximum protection whilst minimising operating costs and energy losses.
Although every UPS manufacturer’s ultimate goal is to achieve 100% efficiency, current technology – not to mention the laws of physics – makes that impossible. However, ongoing developments mean we’re now getting pretty close. The latest generation of modular uninterruptible power supplies delivers exceptionally high efficiency while still achieving the reliability critical applications depend on. A brief history lesson In the past, most UPS systems were designed using a two-level architecture inverter that typically delivered efficiency of around 96%. The evolution to three- level architectures, which did require more components and processing power, pushed efficiency up to 96.5%. Adapting materials used in filter design, meanwhile,
helped manufacturers push efficiency above 97%. And that’s where we’ve been, until now. Can we increase efficiency even more? The biggest step is likely to come from using super-efficient silicon carbide (SiC) semiconductors instead of the traditional silicon-based IGBT components. Silicon carbide is nothing new, of course. It’s widely used in the electric car sector.
In terms of UPS manufacturing, SiC components offer several significant
advantages over standard IGBTs. They are more efficient as they exhibit lower electrical resistance, which reduces energy losses. They can operate at higher temperatures and deliver increased power density too. Silicon carbide has quicker switching capabilities, meaning a more responsive UPS, while it is also more durable. This latter fact leads to extended component lifecycles and reduced maintenance needs.
46 | IRELAND’S ELECTRICAL MAGAZINE
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