CN104237690A - Measurement method and device for electric energy utilization efficiency - Google Patents

Abstract

The invention provides a measurement method and device for electric energy utilization efficiency. The measurement method includes the steps that the current load rate of a data center computer room, the current electricity consumption amount of IT equipment, the current electricity consumption amount of UPS equipment, the current electricity consumption amount of air conditioning equipment, the current electricity consumption amount of an air supply system and the current electricity consumption amount of illumination and security equipment are obtained; the electric energy utilization efficiency of the data center computer room under a preset load rate is obtained according to the current load rate of the data center computer room, the current electricity consumption amount of the IT equipment, the current electricity consumption amount of the UPS equipment, the current electricity consumption amount of the air conditioning equipment, the current electricity consumption amount of the air supply system and the current electricity consumption amount of the illumination and security equipment. According to the measurement method and device for electric energy utilization efficiency, the electric energy utilization efficiencies of different data center computer rooms under the same load rate can be compared, and therefore the energy efficiency of the data center computer room and the energy conservation and emission reduction effect can be estimated more accurately.

Description

The assay method of efficiency and device

Technical field

The present invention relates to measuring technique, particularly relate to a kind of assay method and device of efficiency.

Background technology

Efficiency (Power Usage Effectiveness, PUE) is a kind of overall target weighing data center machine room infrastructure efficiency that domestic and international data center machine room generally accepts and adopts.Its computing formula is: PUE=data center machine room total power consumption/IT current consuming apparatus.

In the data in scheming room, the power consumption of IT (Information Technology, infotech) equipment is only had to be considered to produce the electric energy of " meaningful " that effectively export.The physical meaning of PUE, is calculate in the total electric energy being supplied to data center machine room, has how many electric energy to be really be applied on information technoloy equipment.The efficiency value of data center machine room is larger, then represent that the electric energy that the supporting infrastructure of data center machine room such as refrigeration and power supply consume is larger, efficiency is lower.Efficiency defines simply, is easy to operation, only need measure the total power consumption of data center machine room and information technoloy equipment power consumption respectively, just can calculate the value of the efficiency of whole data center machine room immediately.

But the load factor of each data center machine room is generally not identical.The computing method of prior art, different owing to not considering the load of each data center machine room, make the efficiency value calculated for the machine room that load factor is different there is no comparability.

Summary of the invention

The invention provides a kind of assay method and device of efficiency, the PUE value calculated to solve the different machine room of existing load factor does not have the problem of comparability.

The present invention first aspect provides a kind of assay method of efficiency, comprising:

Obtain the current power consumption of the present load rate of data center machine room, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device;

According to the current power consumption of the present load rate of described data center machine room, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device, obtain the efficiency of the described data center machine room under default load factor.

Another aspect of the present invention provides a kind of determinator of efficiency, comprising:

Acquiring unit, for obtaining the current power consumption of the present load rate of data center machine room, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device;

Computing unit, for the current power consumption of the present load rate according to described data center machine room, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device, obtain the efficiency of the described data center machine room under default load factor.

As shown from the above technical solution, the assay method of efficiency provided by the invention and device, under the efficiency of acquisition is adjusted to default load factor, namely, the efficiency under load factor is preset by each parameter acquiring of current system, so just can compare with the efficiency under other data center machine room identical load rate, and then can according to comparative result, take the data center machine room that energy-saving and emission-reduction recondition measure adjustment efficiency is lower, its efficiency is improved, and then reaches energy-saving and emission-reduction object.In addition, the assay method of efficiency of the present invention and device are only numerically the efficiency of each data center machine room is adjusted to the efficiency under default load factor by measurements and calculations, and not by actual for the load factor of each data center machine room adjust to default load factor under, therefore can not impact the business of the equipment of data center machine room and carrying thereof.

Accompanying drawing explanation

Fig. 1 is the schematic flow sheet of the assay method of efficiency according to an embodiment of the invention;

Fig. 2 is the structural representation of the determinator of efficiency according to another embodiment of the present invention.

Embodiment

Embodiment one

The present embodiment provides a kind of assay method of efficiency, and the assay method of this efficiency is applicable to the PUE measuring different pieces of information central machine room, and the PUE of acquisition can be compared.The executive agent of the assay method of the efficiency of the present embodiment is the determinator of efficiency.

As shown in Figure 1, be the schematic flow sheet of the assay method of the efficiency according to the present embodiment.The assay method of this efficiency comprises:

Step 101, obtains the current power consumption of the present load rate of data center machine room, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device.

The concrete mode of the present load rate of the determinator acquisition data center machine room of efficiency can be directly obtained by the document of data center machine room, namely, data center machine room moment monitoring load factor, and load factor is stored in a document, upgrade every Preset Time, this Preset Time can be 1 second, specifically can set according to actual needs.

In addition, the current power consumption of information technoloy equipment, UPS (Uninterruptible Power System/Uninterruptible Power Supply, uninterrupted power source) current power consumption of equipment, the current power consumption of air-conditioning equipment, the current power consumption of supply air system, the current power consumption of illumination security device, all can be obtained by the ammeter of each equipment.With information technoloy equipment for example, the determinator of efficiency can send to information technoloy equipment the instruction obtaining current power consumption, and receives the numerical value of the current power consumption that this information technoloy equipment returns, and miscellaneous equipment all can be similar, do not repeat them here.

Suppose, a is the present load rate of data center machine room, wherein 0 < a≤1, P _iTafor the current power consumption of information technoloy equipment, P _uafor the current power consumption of UPS equipment, P _cafor the current power consumption of air-conditioning equipment, P _wafor the current power consumption of supply air system, P _oafor the current power consumption of the equipment such as illumination security protection, f _utotal power consumption factor of UPS equipment that m () is default load factor when being m, wherein 0 < m≤1, f _utotal power consumption factor of UPS equipment that a () is present load rate when being a, f _wtotal power consumption factor of supply air system that m () is default load factor when being m, f _wtotal power consumption factor of supply air system that a () is present load rate when being a.M can be larger than a, also can be less than a, also can be equal with a, do not limit at this.

Wherein, P _iTa=f _iT(a), i.e. P _iTait is proportional with present load rate,

$\frac{P_{\mathrm{ITa}}}{a}=\frac{P_{\mathrm{ITm}}}{m}$

Wherein, P _iTmthe power consumption of information technoloy equipment when be default load factor being m.

Before step 102, obtain the current power consumption P of described UPS equipment _uawith the relation P of present load rate a _ua=f _u(a)+K, wherein, K is constant, particularly:

For UPS equipment, its power consumption increases along with the increase of present load rate, but is not simple proportional relation, because UPS equipment itself generally has certain fixed loss, even if unloaded UPS also has certain basic power consumption, generally function can be expressed as, P _ua=f _ua ()+K, wherein k is constant.

As known a and P _uain time, can be obtained, K=P _ua-f _u(a), like this, when load factor is m, the power consumption P of UPS equipment _umfor

P _Um＝f _U(m)+P _Ua-f _U(a)

Before step 102, also comprise: the current power consumption P obtaining supply air system _wawith the relation P of present load rate a _wa=f _wa ()+M, wherein M is constant.Particularly:

Load factor for current power consumption itself and the data center machine room of air-conditioning equipment generally can calculate by proportional relation, that is:

$\frac{P_{\mathrm{ca}}}{a}=\frac{P_{\mathrm{cm}}}{m}$

Power consumption Pw for supply air system is not generally too large with the change of load factor, but is the increase increase gradually along with load factor yet.When load factor is a, obtains the current power consumption of supply air system and the relation of present load rate, specifically can be expressed as

P _wa=f _wa ()+M, wherein M is constant.

According to current total power consumption factor f of the current power consumption of supply air system and the Relation acquisition supply air system of present load rate _w(a)=P _wa-M.

Certainly, also can by obtaining above:

M＝P _Wa-f _W(a)

Can obtain further, when default load factor is m, the power consumption P of supply air system _wmfor:

P _Wm＝f _W(m)+P _Wa-f _W(a)

Because illumination safety-protection system and load factor size are without any relation, therefore, the current power consumption P of illumination safety-protection system _oaconstant.

Step 102, according to the current power consumption of the present load rate of data center machine room, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device, obtain the efficiency of the data center machine room under default load factor.

Particularly, when default load factor is m, the efficiency PUEe of data center machine room under default load factor can be obtained according to following formula:

$\begin{array}{c}\mathrm{PUEe}=\frac{P_{\mathrm{ITm}}+P_{\mathrm{Um}}+P_{\mathrm{Cm}}+P_{\mathrm{Wm}}+P_{\mathrm{Om}}}{P_{\mathrm{ITm}}}\\ =\frac{\frac{P_{\mathrm{ITa}}}{a}m+f_U\left(m\right)+P_{\mathrm{Ua}}-f_U\left(a\right)+\frac{P_{\mathrm{Ca}}}{a}m+f_W\left(m\right)+P_{\mathrm{Wa}}-f_W\left(a\right)+P_{\mathrm{Oa}}}{\frac{P_{\mathrm{ITa}}}{a}m}\\ =1+\frac{a(f_U\left(m\right)+P_{\mathrm{Ua}}-f_U\left(a\right))}{{\mathrm{mP}}_{\mathrm{ITa}}}+\frac{P_{\mathrm{Ca}}}{P_{\mathrm{ITa}}}+\frac{a(f_W\left(m\right)+P_{\mathrm{Wa}}-f_W\left(a\right))}{{\mathrm{mP}}_{\mathrm{ITa}}}+\frac{{\mathrm{aP}}_{\mathrm{Oa}}}{{\mathrm{mP}}_{\mathrm{ITa}}}\end{array}$

Wherein, f _utotal power consumption factor of UPS equipment that m () is default load when being m, f _utotal power consumption factor of UPS equipment that a () is default load factor when being a, f _wtotal power consumption factor of supply air system that m () is default load factor when being m%, f _wa () is total power consumption factor of supply air system when default load factor is a.

According to the assay method of the efficiency of the present embodiment, under the efficiency of acquisition is adjusted to default load factor, namely, preset the efficiency under load factor by each parameter acquiring of current system, so just can compare with the efficiency under other data center machine room identical load rate.And then according to comparative result, the data center machine room that energy-saving and emission-reduction recondition measure adjustment efficiency is lower can be taked, its efficiency is improved, and then reaches energy-saving and emission-reduction object.In addition, the assay method of the efficiency of the present embodiment is only numerically compared by the efficiency that the efficiency of each data center machine room is adjusted under default load factor by measurements and calculations, and not by actual for the load factor of each data center machine room adjust to default load factor under, therefore can not impact the business of the equipment of data center machine room and carrying thereof.

Embodiment two

The instantiation of the assay method of the above-mentioned efficiency of the present embodiment.

In the present embodiment, suppose that presetting load factor is 100%, the present load rate of the determinator acquisition data center machine room of efficiency is a, and the current power consumption of information technoloy equipment is P _iTa, UPS equipment current power consumption be P _ua, air-conditioning equipment current power consumption be P _ca, supply air system current power consumption be P _wa, illumination security device current power consumption be P _oa, then can obtain the efficiency PUEe of data center machine room under default load factor according to following formula:

$\begin{array}{c}\mathrm{PUEe}=\frac{P_{\mathrm{IT}1}+P_{U1}+P_{C1}+P_{W1}+P_{O1}}{P_{\mathrm{IT}1}}\\ =\frac{\frac{P_{\mathrm{ITa}}}{a}+f_U\left(1\right)+P_{\mathrm{Ua}}-f_U\left(a\right)+\frac{P_{\mathrm{Ca}}}{a}+f_W\left(1\right)+P_{\mathrm{Wa}}-f_W\left(a\right)+P_{\mathrm{Oa}}}{\frac{P_{\mathrm{ITa}}}{a}}\\ =1+\frac{a(f_U\left(1\right)+P_{\mathrm{Ua}}-f_U\left(a\right))}{P_{\mathrm{ITa}}}+\frac{P_{\mathrm{Ca}}}{P_{\mathrm{ITa}}}+\frac{a(f_W\left(1\right)+P_{\mathrm{Wa}}-f_W\left(a\right))}{P_{\mathrm{ITa}}}+\frac{{\mathrm{aP}}_{\mathrm{Oa}}}{P_{\mathrm{ITa}}}\end{array}$

Wherein, f _u(1) total power consumption factor of UPS equipment when be default load factor being 100%, f _utotal power consumption factor of UPS equipment that a () is present load rate when being a, f _w(1) total power consumption factor of supply air system when be default load factor being 100%, f _wtotal power consumption factor of supply air system that a () is present load rate when being a.

Correspondingly, PUEe also can obtain according to Dynamic gene e, that is, PUEe=PUEa × e.The expression formula of this e is as follows:

$\begin{array}{c}e=\frac{\mathrm{PUEe}}{\mathrm{PUEa}}=\frac{1+\frac{a(f_U\left(1\right)+P_{\mathrm{Ua}}-f_U\left(a\right))}{P_{\mathrm{ITa}}}+\frac{P_{\mathrm{Ca}}}{P_{\mathrm{ITa}}}+\frac{a(f_W\left(1\right)+P_{\mathrm{Wa}}-f_W\left(a\right))}{P_{\mathrm{ITa}}}+\frac{{\mathrm{aP}}_{\mathrm{Oa}}}{P_{\mathrm{ITa}}}}{\frac{P_{\mathrm{ITa}}+P_{\mathrm{Ua}}+P_{\mathrm{Ca}}+P_{\mathrm{Wa}}+P_{\mathrm{Oa}}}{P_{\mathrm{ITa}}}}\\ =\frac{P_{\mathrm{ITa}}+a(f_U\left(1\right)+P_{\mathrm{Ua}}-f_U\left(a\right))+P_{\mathrm{Ca}}+a(f_W\left(1\right)+P_{\mathrm{Wa}}-f_W\left(a\right))+{\mathrm{aP}}_{\mathrm{Oa}}}{P_{\mathrm{ITa}}+P_{\mathrm{Ua}}+P_{\mathrm{Ca}}+P_{\mathrm{Wa}}+P_{\mathrm{Oa}}}\\ =\frac{P_{\mathrm{ITa}}}{P_{\mathrm{total}\_a}}+\frac{a(f_U\left(1\right)+P_{\mathrm{Ua}}-f_U\left(a\right))}{P_{\mathrm{total}\_a}}+\frac{P_{\mathrm{Ca}}}{P_{\mathrm{total}\_a}}+\frac{a(f_W\left(1\right)+P_{\mathrm{Wa}}-f_W\left(a\right))}{P_{\mathrm{total}\_a}}+\frac{{\mathrm{aP}}_{\mathrm{Oa}}}{P_{\mathrm{total}\_a}}\end{array}$

Wherein, P _{total_a}=P _iTa+ P _ua+ P _ca+ P _wa+ P _oa

The efficiency PUEe of data center machine room when the present embodiment acquisition load factor is 100%, and can to obtain other data center module load factor be efficiency in 100% situation, and compare with this PUEe, to adjust work accordingly according to comparative result.

Embodiment three

The present embodiment provides a kind of determinator of efficiency, for performing the assay method of above-mentioned efficiency.

As shown in Figure 2, be the structural representation of the determinator of the efficiency according to the present embodiment.The determinator 200 of this efficiency comprises acquiring unit 201 and computing unit 202.

Wherein, acquiring unit 201 is for obtaining the current power consumption of the present load rate of data center machine room, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device; Computing unit 202, for the current power consumption of the present load rate of the data center machine room that obtains according to acquiring unit 201, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device, obtains the efficiency of the data center machine room under default load factor.

Alternatively, computing unit specifically for:

The efficiency PUEe of data center machine room under default load factor is obtained according to following formula:

$\mathrm{PUEe}=1+\frac{a(f_U\left(m\right)+P_{\mathrm{Ua}}-f_U\left(a\right))}{{\mathrm{mP}}_{\mathrm{ITa}}}+\frac{P_{\mathrm{Ca}}}{P_{\mathrm{ITa}}}+\frac{a(f_W\left(m\right)+P_{\mathrm{Wa}}-f_W\left(a\right))}{{\mathrm{mP}}_{\mathrm{ITa}}}+\frac{{\mathrm{aP}}_{\mathrm{Oa}}}{{\mathrm{mP}}_{\mathrm{ITa}}},$

Wherein, a is present load rate, the P of data center machine room _iTafor current power consumption, the P of information technoloy equipment _uafor current power consumption, the P of UPS equipment _cafor current power consumption, the P of air-conditioning equipment _wafor current power consumption, the P of supply air system _oafor the current power consumption of the equipment such as illumination security protection, f _utotal power consumption factor of UPS equipment that m () is default load when being m, wherein 0 < m≤1, f _utotal power consumption factor of UPS equipment that a () is present load when being a, wherein 0 < a≤1, f _wtotal power consumption factor of supply air system that m () is default load when being m, f _wtotal power consumption factor of supply air system that a () is present load when being a.

Alternatively, acquiring unit 201 also for:

Obtain the current power consumption of described UPS equipment and the relation P of present load rate _ua=f _u(a)+K;

Obtain the current power consumption of described supply air system and the relation P of present load rate _wa=f _w(a)+M;

Wherein, K and M is constant.

Alternatively, the default load of the present embodiment can be 100%.

When default load is 100%, the value of PUEe is as shown in below:

$\mathrm{PUEe}=1+\frac{a(f_U\left(1\right)+P_{\mathrm{Ua}}-f_U\left(a\right))}{P_{\mathrm{ITa}}}+\frac{P_{\mathrm{Ca}}}{P_{\mathrm{ITa}}}+\frac{a(f_W\left(1\right)+P_{\mathrm{Wa}}-f_W\left(a\right))}{P_{\mathrm{ITa}}}+\frac{{\mathrm{aP}}_{\mathrm{Oa}}}{P_{\mathrm{ITa}}}$

The mode of operation of the determinator 200 of the efficiency of the present embodiment is consistent with embodiment one or embodiment two, does not repeat them here.

According to the determinator 200 of the efficiency of the present embodiment, under the efficiency of acquisition is adjusted to default load factor, namely, the efficiency under load factor is preset by each parameter acquiring of current system, so just can compare with the efficiency under other data center machine room identical load rate, and then can according to comparative result, take the data center machine room that energy-saving and emission-reduction recondition measure adjustment efficiency is lower, its efficiency is improved, and then reaches energy-saving and emission-reduction object.In addition, the assay method of the efficiency of the present embodiment is only numerically the efficiency of each data center machine room is adjusted to the efficiency under default load factor by measurements and calculations, and not by actual for the load factor of each data center machine room adjust to default load factor under, therefore can not impact data center machine room facility and business.

One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.

Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (8)

1. an assay method for efficiency, is characterized in that, comprising:

Obtain the current power consumption of the present load rate of data center machine room, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device;

According to the current power consumption of the present load rate of described data center machine room, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device, obtain the efficiency of the described data center machine room under default load factor.

2. the assay method of efficiency according to claim 1, it is characterized in that, the current power consumption of the described present load rate according to described data center machine room, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device, obtain the efficiency of the described data center machine room under default load factor, specifically comprise:

The efficiency PUEe of described data center machine room under described default load factor m is obtained according to following formula:

$\mathrm{PUEe}=1+\frac{a(f_U\left(m\right)+P_{\mathrm{Ua}}-f_U\left(a\right))}{{\mathrm{mP}}_{\mathrm{ITa}}}+\frac{P_{\mathrm{Ca}}}{P_{\mathrm{ITa}}}+\frac{a(f_W\left(m\right)+P_{\mathrm{Wa}}-f_W\left(a\right))}{{\mathrm{mP}}_{\mathrm{ITa}}}+\frac{{\mathrm{aP}}_{\mathrm{Oa}}}{{\mathrm{mP}}_{\mathrm{ITa}}},$

Wherein, a is present load rate, the P of described data center machine room _iTafor current power consumption, the P of information technoloy equipment _uafor current power consumption, the P of UPS equipment _cafor current power consumption, the P of air-conditioning equipment _wafor current power consumption, the P of supply air system _oafor the current power consumption of the equipment such as illumination security protection, f _utotal power consumption factor of described UPS equipment that m () is described default load factor when being m, 0 < m≤1, f _utotal power consumption factor of described UPS equipment that a () is described present load rate when being a, 0 < a≤1, f _wtotal power consumption factor of described supply air system that m () is described default load factor when being m, f _wtotal power consumption factor of described supply air system that a () is described present load rate when being a.

3. the assay method of efficiency according to claim 2, is characterized in that, before the efficiency of the described data center machine room of described acquisition under default load factor, also comprises:

Obtain the current power consumption of described UPS equipment and the relation P of present load rate _ua=f _u(a)+K;

Obtain the current power consumption of described supply air system and the relation P of present load rate _wa=f _w(a)+M;

Wherein, K and M is constant.

4. the assay method of the efficiency according to any one of claim 1-3, is characterized in that, described default load factor is 100%.

5. a determinator for efficiency, is characterized in that, comprising:

Acquiring unit, for obtaining the current power consumption of the present load rate of data center machine room, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device;

Computing unit, for the current power consumption of the present load rate according to described data center machine room, the current power consumption of information technoloy equipment, the current power consumption of UPS equipment and current total power consumption factor, the current power consumption of air-conditioning equipment, the current power consumption of supply air system and current total power consumption factor, illumination security device, obtain the efficiency of the described data center machine room under default load factor.

6. the determinator of efficiency according to claim 4, is characterized in that, described computing unit specifically for:

The efficiency PUEe of described data center machine room under described default load factor m is obtained according to following formula:

$\mathrm{PUEe}=1+\frac{a(f_U\left(m\right)+P_{\mathrm{Ua}}-f_U\left(a\right))}{{\mathrm{mP}}_{\mathrm{ITa}}}+\frac{P_{\mathrm{Ca}}}{P_{\mathrm{ITa}}}+\frac{a(f_W\left(m\right)+P_{\mathrm{Wa}}-f_W\left(a\right))}{{\mathrm{mP}}_{\mathrm{ITa}}}+\frac{{\mathrm{aP}}_{\mathrm{Oa}}}{{\mathrm{mP}}_{\mathrm{ITa}}},$

Wherein, a is present load rate, the P of described data center machine room _iTafor current power consumption, the P of information technoloy equipment _uafor current power consumption, the P of UPS equipment _cafor current power consumption, the P of air-conditioning equipment _wafor current power consumption, the P of supply air system _oafor the current power consumption of the equipment such as illumination security protection, f _utotal power consumption factor of described UPS equipment that m () is described default load factor when being m, 0 < m≤1, f _utotal power consumption factor of described UPS equipment that a () is described present load rate when being a, 0 < a≤1, f _wtotal power consumption factor of described supply air system that m () is described default load factor when being m, f _wtotal power consumption factor of described supply air system that a () is described present load rate when being a.

7. the determinator of efficiency according to claim 6, is characterized in that, described acquiring unit also for:

Obtain the current power consumption of described UPS equipment and the relation P of present load rate _ua=f _u(a)+K;

Obtain the current power consumption of described supply air system and the relation P of present load rate _wa=f _w(a)+M;

Wherein, K and M is constant.

8. the determinator of the efficiency according to any one of claim 5-7, is characterized in that, described default load factor is 100%.