CN104461852A - Fan power dissipation calculation method - Google Patents
Fan power dissipation calculation method Download PDFInfo
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- CN104461852A CN104461852A CN201410819597.2A CN201410819597A CN104461852A CN 104461852 A CN104461852 A CN 104461852A CN 201410819597 A CN201410819597 A CN 201410819597A CN 104461852 A CN104461852 A CN 104461852A
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Abstract
The invention discloses a fan power dissipation calculation method. For a server without the fan work current detection function, the flow resistance of the server and the single fan performance are measured so that work points at different fan rotating speeds can be determined, according to the positions of the work points, fan rotating speeds and single fan power dissipation which correspond to different fan duty ratios can be acquired in a sorted mode through a single fan performance curve measured by wind tunnel equipment, and therefore a relation formula of the fan power dissipation and the corresponding fan rotating speed can be acquired through a mathematical method. Compared with the prior art, the fan power dissipation calculation method has the advantages that the fan power dissipation can be read without modifying hardware of the server, fan power dissipation detection accuracy is improved through algorithm optimization, practicality is high, and popularization is easy.
Description
Technical field
The present invention relates to server technology field, specifically a kind of practical, fan power consumption calculation method.
Background technology
Along with the development of data center's scale, the requirement of client to server Overall Power Consumption is more and more higher, therefore start to monitor each parts power consumption of server, and reduce complete machine operation power consumption by corresponding control and optimize, fan part is comprised to the monitoring of parts power consumption.Previous generation server is because of not this power consumption monitoring demand, and generally not design current testing circuit on mainboard, therefore cannot carry out the reading of fan power consumption.
Based on this, now provide a kind of and improve the precision of fan consumption detection, carried out the method for fan power consumption calculation by Mathematical Fitting.
Summary of the invention
Technical assignment of the present invention is for above weak point, provides a kind of practical, fan power consumption calculation method.
A kind of fan power consumption calculation method, its specific implementation process is:
One, build hardware system, this hardware system comprises server machine system, wind tunnel instrumentation, BMC control system, wherein:
Server machine system is for measuring flow resistance curve, and this curve and fan performance curve determine fan work point jointly;
Wind tunnel instrumentation is used for performance curve under the flow resistance of testing server and monomer fan different rotating speeds and power consumption profile;
The rotation speed of the fan that Mathematical Fitting obtains by BMC control system and power consumption relation formula are integrated into program, and when server normally works, BMC obtains rotation speed of the fan, calculates monomer fan power consumption;
Two, server machine system starts and starts working, and wind tunnel instrumentation tests performance curve under the flow resistance of this server machine system and monomer fan different rotating speeds and power consumption profile, namely confirms the working point under different rotation speed of the fan;
Three, by corresponding rotation speed of the fan and monomer fan power consumption under working point data and the different fan dutycycle of fan performance curve acquisition;
Four, data processing, obtain the relation formula of fan power consumption and rotation speed of the fan, formulae express becomes the form of cubic equation;
Five, in fitting formula write BMC software program, for monitoring rotation speed of the fan, and acquisition monomer fan power consumption is calculated.
After described hardware system has been built, also comprise the step of confirmed service type number and fan model: different fan performance curves is different, and working point there are differences in different server.
The concrete deterministic process of described working point is: fan is being agreed to all can change with the change of working point, rotation speed of the fan and power consumption under dutycycle, test obtains performance curve under server flow resistance and fan different rotating speeds and power consumption profile two data are used for determining fan work point, confirms the air quantity that fan works under different duty and blast state value.
A kind of fan power consumption calculation method of the present invention, has the following advantages:
A kind of fan power consumption calculation method of this invention should carry out the method for fan power consumption calculation by Mathematical Fitting, avoid the amendment to server hardware circuit, improve functional development speed, and ensure that the precision of functional realiey, can effectively improve client's legacy server by zero cost, make client can realize server energy consumption monitoring function, practical, be easy to promote.
Accompanying drawing explanation
Accompanying drawing 1 is realization flow figure of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
The present invention proposes a kind of fan power consumption calculation method, the working point that the method is determined under different rotation speed of the fan for the server lacking fan work current detecting by measuring server flow resistance and fan monomer performance, the monomer fan performance curve utilizing wind-tunnel facilities to measure according to operating point location can arrange and obtain corresponding rotation speed of the fan and monomer fan power consumption under different fan dutycycle, and then utilize mathematical method can obtain the relation formula of fan power consumption and rotation speed of the fan, the method does not need to modify to server hardware to realize the reading of fan power consumption, improved the precision of fan consumption detection by algorithm optimization simultaneously.Its specific implementation depends on the hardware system built, and this hardware system comprises server machine system, wind tunnel instrumentation, BMC control system, wherein:
Server machine system: use for measuring flow resistance curve, this curve can determine fan work point jointly with fan performance curve.
Wind tunnel instrumentation: this equipment is used for performance curve under the flow resistance of testing server and monomer fan different rotating speeds and power consumption profile.
BMC control system: the rotation speed of the fan obtain Mathematical Fitting and power consumption relation formula are integrated into program, and when server normally works, BMC obtains rotation speed of the fan, calculates monomer fan power consumption.
Based on above-mentioned hardware system, as shown in Figure 1, the specific implementation process of the method is:
Confirmed service type number and fan model: different fan performance curves is different, and in different server, working point there are differences, and therefore needs clear and definite model, improve the precision of functional realiey.
Test obtains server flow resistance and fan PQ performance curve: fan, agreeing to all can change with the change of working point, rotation speed of the fan and power consumption under dutycycle, measures above two data and may be used for determining fan work point.
Confirm the working point under different rotation speed of the fan: specify that namely fan work point can confirm that fan is operated in which type of air quantity/blast state under different duty.
Utilize corresponding rotation speed of the fan and monomer fan power consumption under the different fan dutycycle of working point data and fan performance curve acquisition: fan work point is determined, air quantity, the back pressure parameter of fan can be determined, and then rotation speed of the fan and power consumption data no longer change.
Data processing, obtain the relation formula of fan power consumption and rotation speed of the fan, formulae express becomes the form of cubic equation: according to fan performance Changing Pattern, there is three cubed Changing Pattern in the power consumption of fan and rotating speed, therefore adopts cubic equation to represent that the relation formula of fan power consumption and rotating speed can improve the precision of calculating.
In fitting formula write BMC software program, for monitoring rotation speed of the fan, and calculate acquisition monomer fan power consumption: server adopts BMC to carry out working state administration, and bmc can realize the monitoring of rotation speed of the fan, by in this fitting formula write-in program, the function calculating fan power consumption in real time can be realized.
By above operation, we do not need to increase extra hardware circuit design, only need the adjustment carrying out software view, can realize the detection management function of fan power consumption, and this implementation is zero cost, high precision, is easy to operation.
Above-mentioned embodiment is only concrete case of the present invention; scope of patent protection of the present invention includes but not limited to above-mentioned embodiment; claims of any a kind of fan power consumption calculation method according to the invention and the those of ordinary skill of any described technical field to its suitable change done or replacement, all should fall into scope of patent protection of the present invention.
Claims (3)
1. a fan power consumption calculation method, is characterized in that, its specific implementation process is:
One, build hardware system, this hardware system comprises server machine system, wind tunnel instrumentation, BMC control system, wherein:
Server machine system is for measuring flow resistance curve, and this curve and fan performance curve determine fan work point jointly;
Wind tunnel instrumentation is used for performance curve under the flow resistance of testing server and monomer fan different rotating speeds and power consumption profile;
The rotation speed of the fan that Mathematical Fitting obtains by BMC control system and power consumption relation formula are integrated into program, and when server normally works, BMC obtains rotation speed of the fan, calculates monomer fan power consumption;
Two, server machine system starts and starts working, and wind tunnel instrumentation tests performance curve under the flow resistance of this server machine system and monomer fan different rotating speeds and power consumption profile, namely confirms the working point under different rotation speed of the fan;
Three, by corresponding rotation speed of the fan and monomer fan power consumption under working point data and the different fan dutycycle of fan performance curve acquisition;
Four, data processing, obtain the relation formula of fan power consumption and rotation speed of the fan, formulae express becomes the form of cubic equation;
Five, in fitting formula write BMC software program, for monitoring rotation speed of the fan, and acquisition monomer fan power consumption is calculated.
2. a kind of fan power consumption calculation method according to claim 1, it is characterized in that, after described hardware system has been built, also comprise the step of confirmed service type number and fan model: different fan performance curves is different, and working point there are differences in different server.
3. a kind of fan power consumption calculation method according to claim 2, it is characterized in that, the concrete deterministic process of described working point is: fan is being agreed to all can change with the change of working point, rotation speed of the fan and power consumption under dutycycle, test obtains performance curve under server flow resistance and fan different rotating speeds and power consumption profile two data are used for determining fan work point, confirms the air quantity that fan works under different duty and blast state value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410819597.2A CN104461852A (en) | 2014-12-25 | 2014-12-25 | Fan power dissipation calculation method |
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| CN201410819597.2A CN104461852A (en) | 2014-12-25 | 2014-12-25 | Fan power dissipation calculation method |
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| CN104461852A true CN104461852A (en) | 2015-03-25 |
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| CN201410819597.2A Pending CN104461852A (en) | 2014-12-25 | 2014-12-25 | Fan power dissipation calculation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106126858A (en) * | 2016-07-06 | 2016-11-16 | 西安理工大学 | A kind of method of fan type selecting in electrokinetic cell air cooling system |
| CN106897524A (en) * | 2017-02-28 | 2017-06-27 | 郑州云海信息技术有限公司 | A kind of method for designing for optimizing fan housing air outlet structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103423189A (en) * | 2013-09-03 | 2013-12-04 | 中国科学院计算技术研究所 | Server fan power consumption measuring method |
| CN103488535A (en) * | 2013-09-25 | 2014-01-01 | 浪潮电子信息产业股份有限公司 | Method for switching air fans with different P-Q curves in air fan control strategy |
| CN103744504A (en) * | 2014-01-14 | 2014-04-23 | 浪潮电子信息产业股份有限公司 | Electrical fan design method for reducing power consumption of server |
-
2014
- 2014-12-25 CN CN201410819597.2A patent/CN104461852A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423189A (en) * | 2013-09-03 | 2013-12-04 | 中国科学院计算技术研究所 | Server fan power consumption measuring method |
| CN103488535A (en) * | 2013-09-25 | 2014-01-01 | 浪潮电子信息产业股份有限公司 | Method for switching air fans with different P-Q curves in air fan control strategy |
| CN103744504A (en) * | 2014-01-14 | 2014-04-23 | 浪潮电子信息产业股份有限公司 | Electrical fan design method for reducing power consumption of server |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106126858A (en) * | 2016-07-06 | 2016-11-16 | 西安理工大学 | A kind of method of fan type selecting in electrokinetic cell air cooling system |
| CN106126858B (en) * | 2016-07-06 | 2019-05-28 | 西安理工大学 | A kind of method of fan type selecting in power battery air cooling system |
| CN106897524A (en) * | 2017-02-28 | 2017-06-27 | 郑州云海信息技术有限公司 | A kind of method for designing for optimizing fan housing air outlet structure |
| CN106897524B (en) * | 2017-02-28 | 2020-06-12 | 苏州浪潮智能科技有限公司 | Design method for optimizing air outlet structure of outer frame of fan |
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Application publication date: 20150325 |