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Want to improve energy efficiency? Let's first take a look at the test results of DC UPS and traditional UPS. Most people use UPS power supplies to improve their environmental friendliness and energy efficiency. Driven by the huge market demand, investment in data centers in China will continue to rise rapidly in the coming years, and the market demand for lithium-ion battery UPS will also increase synchronously. Greening and energy-saving have become inevitable demands for the development of UPS.

At present, there are two research claims in the industry that using DC power in data centers can improve energy efficiency compared to AC power. One is that it can save energy up to 20% -30%, and the other research shows that the truly effective energy saving is only within the range of 1-2%. In this regard, I would like to express my opinion and share the following test results.

Based on analysis and testing by authoritative institutions, the specific data is shown in the following figure:

1. Traditional communication output UPS under full load conditions:

UPS power supply efficiency=92%

UPS output distribution=97%

Internal switch power supply (AC/DC+DC/AC)=89%

Low voltage DC distribution inside the machine=86%

UPS power supply efficiency=92% * 97%=89%

Total efficiency=92% * 97% * 89% * 86%=68%

2. DC output UPS (DC UPS output 380V, battery 336V) under full load conditions:

UPS power supply efficiency (AC/DC primary conversion)=97%

UPS output distribution=98%

Internal switch power supply (AC/DC primary conversion)=93%

Low voltage DC distribution inside the machine=86%

UPS power supply efficiency=97% * 98%=95%

Total efficiency=97% * 98% * 93% * 86%=76%

3. DC output UPS (DC UPS output 268V, battery 240V) under full load conditions:

UPS power supply efficiency (AC/DC+DC/DC two-stage conversion)=92%

UPS output distribution=98%

Internal switch power supply (AC/DC+DC/DC two-stage conversion)=89%

Low voltage DC distribution inside the machine=86%

UPS power supply efficiency=92% * 98%=90%

Total efficiency=92% * 98% * 89% * 86%=69%

In summary, the efficiency of the traditional AC output UPS system (full load output) is 89%

DC UPS (DC UPS output 380V, battery 336V) system (full load output) efficiency=95%

DC UPS (DC UPS output 268V, battery 240V) system (full load output) efficiency=90%

Against the backdrop of rapidly cultivating and developing emerging industries, the rapid development of hotspots such as big data, smart cities, urbanization, and 4G will ignite new growth points in the UPS market. Big data is a sunrise industry that will drive the explosive rise of data center infrastructure and related software. The data center environment deployed by the company has also undergone corresponding changes and innovations, presenting both opportunities and challenges for UPS vendors.

The above is the data obtained from testing DC UPS and traditional UPS. You can take a closer look and see if it can improve the energy efficiency of data centers. If you really want to improve energy efficiency, you can use lithium-ion battery UPS power supply.

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