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____________________________________________________________________________________
Editorial Topic: Chloride's Trinergy UPS
In October News we present Chloride new Trinergy UPS system designed for data centers with a
claimed maximum efficiency of up to 99 percent.
Trinergy's name stems from its ability to work in three different topologies. In addition to normal Online
Double Conversion mode, and the Standby Eco-mode, the UPS can work also in a new mode which
enables its Inverter to operate as an active filter rendering features found in Online UPS systems.
Trinergy UPS is able to select automatically, based on Mains and Load condition the preferred mode to
achieve both power protection and maximum efficiency.
In Online Double Conversion regime, the Power is processed via the Rectifier - Inverter Route, solving
all Power disturbances. Trinergy's full-load Online Efficiency in this regime is 95% at full load. This
however, is reduced according to Chloride, when practical load and environment is applied to 92.5%.
In the Eco mode, the UPS provides unprotected power through the By Pass Route, which connects the
mains input directly to the load. In this mode the Trinergy can supply according to Chloride ideally
99% efficiency. Practically however, the total efficiency of the UPS if Eco mode is selected , drops to
94.9% due to upside stream current harmonic losses generated by non linear loads, and the need to
work partial time in Online mode to protect the load from irregularities and transients of the public
mains power.
The Trinergy includes a new power processing route which grants outstanding results. By inserting a
series power Inductance (choke) between input Mains Power and inverter's output a power conditioned
operational mode can be achieved. Here power is supplied from Mains to the load, through the choke,
while the inverter acts as an active filter to provide conditioned clean and transient free voltages to load
and absorb the current harmonics stemming from nonlinear load characteristic, thus eliminating the
upstream power losses. In this operational mode efficiencies of 96% to 98% are achievable.
UPS control circuits in Trinergy, monitor continuously Mains and Load behavior to select automatically
the best working mode in a given situation, for achieving both Power Protection and the lowest power
waste. The said type of operation renders according to chloride practically 97.9% efficiency.
Each UPS comprises basic 200kVA modules. From two to six modules can be paralleled for
redundancy or power scaling to form up to 1.2Mwatt UPS. The UPS's can be additionally paralleled for
scalability up to 9.6Mwatt.
The modular scalable approach enables initial investment in line with short term requirements, allowing
subsequently increasing the number of systems when power grows.
To decrease power losses, in case of relatively light loading of Parallel systems, a unique feature enables
turning off automatically, UPS systems which are not required for feeding the load or keeping
redundancy protection.
For more information, read about the Future UPS Technology, on Chloride's Website.
Not enough information is provided by Chloride to support the cited efficiencies, used to justify the new
mode advantages. It is unclear why Online load efficiency drops from 95% at full load, down to 92.5%.
It is also unclear why UPS efficiency is reduced practically by four percent if Eco mode is selected.
Future loads, particularly those used in data centers are required today to provide almost unity power
factor eliminating the losses associated with upstream harmonics.
Chloride does present an interesting solution for Economic power conditioning. Even if we don't take
the claimed figures for granted, supposing that Chloride is optimistic in assessing the gained efficiency,
and assuming that practically only about 50% of the said losses are reduced by Trinergy , big money
can be saved on UPS power and associated cooling, considering the Megawatt powers involved.
We have examined In September Newsletter how new Server's standards affect UPS efficiency
requirements, indicating that with current UPS Online efficiencies, of about 95%, any improvement is
marginal in relation to the total data center's running losses. The user will probably weigh the possible
running cost gains provided by Trinergy versus the possible reduction in system's reliability.
It is hard to guess how the market will respond. Any innovative small step for the manufacturer can
lead to a giant leap for the Industry. It happened with the introduction of PWM wave forming, the
transformer-less UPS, Power Factor Correction, Modular UPS systems or Line interactive operation.
The innovation may however be entirely forgotten, become marginal, such as the Hybrid UPS, or
become "nice to have" like Eco mode operation, which seems to be driven today mainly by
manufacturers desire to present high efficiency and less by real market's demand.
No innovation that made a change was accepted with open arms, each one had to overcome the
rejection of Professional Mavens.
We welcome comments on this Topic, please e-mail to : denis@upsonnet.com . Items of general
interest will brought to our subscribers attention.
UPSonNet Website News
We are constantly improving the website in order to make it friendlier and more informative to our
visitors. Most changes are not mentioned; we believe that people, who follow us for a time, feel the
difference.
Some pages, such as the RM Product Directory , are frequently updated , and should be visited before
action is taken.
We have also added in October to our Industry links page a link to DgMarket, which is a tender
information source service. The service provides in due time worldwide tenders on any selected topic or
keyword. To join, link to DgMarket on Industry - Links page.
Industry News
We recommend strongly, visiting at least once a week our UPS-News. We read each day numerous
publications about the Industry, as well as e-mails from manufacturers and other industry participants
that we receive, in order to present items of importance to our visitors.
This unique service enables you to be updated with the latest news, and also see at a glance what
happens in the industry and where it is heading. If you are a manufacturer you must be aware of
Industry trends. If you are a buyer or a consultant you must know what to look for, in order not to
regret tomorrow the decisions you make today.
Such glance on October-news shows that close to 50% of industry participants are working on
increasing efficiency and decreasing losses. See news from Tripplite, Chloride, Riello, Eaton, and HP.
Almost 30% of October news is related to new UPS systems with almost unity output power factor, as
required by new energy standards, treated in our June Newsletter . See Chloride and HP systems.
Riello's calculator enables calculating the wattage performance of its UPS's against the competition.
________________________________________________________________________
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| UPSonNet NewsLetter October 2009 |
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