CN104154022B - Fan speed-governing method in inverter - Google Patents
Fan speed-governing method in inverter Download PDFInfo
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- CN104154022B CN104154022B CN201410403089.6A CN201410403089A CN104154022B CN 104154022 B CN104154022 B CN 104154022B CN 201410403089 A CN201410403089 A CN 201410403089A CN 104154022 B CN104154022 B CN 104154022B
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Abstract
The invention discloses the fan speed-governing method in a kind of inverter, relate to adjusting means or the method and technology field of temperature.Comprise the following steps: (1) arranges starting fan temperature T in the controller of fan；(2) an inverter IGBT temperature is set in the controller of fan and controls desired value, be set to TTarget；(3) in use temperature sensor gathers inverter, the actual temperature value of IGBT, is set to TTest, and this value is sent in described controller, when actual temperature value TTestDuring more than starting fan temperature T, controller is according to formula P* (TTest‑TTarget)+I*∫(TTest‑TTarget) dt calculates the driving voltage value of fan, control fan and rotate；Described method can extend the service life of fan, can reduce again the loss of fan as far as possible, it is also possible to reduces the noise of fan.
Description
Technical field
The present invention relates to adjusting means or the method and technology field of temperature, particularly relate to the wind in a kind of inverter
Fan speed regulating method.
Background technology
In powerful photovoltaic energy storage inverter, it is typically all and uses the mode of fan refrigeration to come to inverter
Internal cooling, but fans drive needs loss of energy, the service life of fan is also restriction inverter simultaneously
One short slab in life-span.
The most conventional fan speed-governing method mainly has two kinds: one is segmentation speed regulation method, will output
Or output size of current is divided into several sections, when the power of output is in given scope, then output one is right
The voltage answered drives fan.Although this method can regulate fans drive voltage, but for cryogenic conditions
Under, inverter internal temperature is the lowest, to such an extent as to it is air-cooled to need not fan, thus wastes the energy, also drops
Low fan service life.If inverter is operated under high temperature low-power, big fan refrigeration can not be added again
Dynamics, causes inverter internal temperature the highest, can reduce the use longevity of inverter conversion efficiency and inverter
Life.
Another kind is that temperature regulates method, i.e. then starts fan, when temperature is little when IGBT temperature more than specified value
Fan then can be stopped in given temperature.Although this method can regulate fan according to the temperature of IGBT
Open, but the intensity of wind-force can not be regulated according to temperature value, inverter internal can be made sometimes hot and sometimes cold,
Fan can start and stop the most frequently, thus can be easily damaged the relay of fans drive, and reduce making of fan
Use the life-span.
Summary of the invention
The technical problem to be solved is to provide the fan speed-governing method in a kind of inverter, described side
Method can regulate the rotating speed of fan, and the most constant IGBT according to the instantaneous value of IGBT temperature
Temperature, it is ensured that IGBT is operated in optimum state, can not start fan, thus again simultaneously
The service life of fan can be extended, the loss of fan can be reduced again as far as possible, it is also possible to reduce fan
Noise.
For solving above-mentioned technical problem, the technical solution used in the present invention is: the fan in a kind of inverter
Speed regulating method, it is characterised in that comprise the following steps:
(1) starting fan temperature T is set in the controller of fan；
(2) an inverter IGBT temperature is set in the controller of fan and controls desired value, be set to TTarget；
(3) in use temperature sensor gathers inverter, the actual temperature value of IGBT, is set to TTest, and will
This value is sent in described controller, when actual temperature value TTestDuring more than starting fan temperature T, controller
According to formula P* (TTest-TTarget)+I*∫(TTest-TTarget) dt calculates the driving voltage value of fan, controls wind
Fan rotates, and lowers the temperature inverter, and wherein P and I represents the fan speed-regulating factor, and P span is respectively
Being 0.1-1, the span of I is 0.01-0.1 respectively
Further preferred technical scheme is: described starting fan temperature T is provided with return difference temperature +/-A DEG C,
I.e. when IGBT temperature reaches T+A DEG C, then sent fan by controller and enable signal, once after starting fan
Then give as control target temperature value using temperature T DEG C divided into, control to adjust the driving voltage value of fan,
If over factor impacts such as power drop, IGBT temperature declines, and fan works with minimum speed, until IGBT
At a temperature of when falling below T-A DEG C, after time delay, sent fan by controller do not enable signal, then stop wind
Fan.
Further preferred technical scheme is: the outfan of described controller is provided with fan control, is used for
The response speed of regulation fan.
Use and have the beneficial effects that produced by technique scheme: described method can be according to IGBT temperature
Instantaneous value regulates the rotating speed of fan, and the temperature of the most constant IGBT, it is ensured that IGBT works
At optimum state, fan can not started again simultaneously, thus can extend the service life of fan,
The loss of fan can be reduced again as far as possible, it is also possible to reduce the noise of fan.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the control flow chart of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear,
It is fully described by, it is clear that described embodiment is only a part of embodiment of the present invention rather than complete
The embodiment in portion.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creativeness
The every other embodiment obtained under work premise, broadly falls into the scope of protection of the invention.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but the present invention
Other can also be used to be different from alternate manner described here implement, those skilled in the art can be not
Doing similar popularization in the case of running counter to intension of the present invention, therefore the present invention is not by following public specific embodiment
Restriction.
In the present embodiment, employ the running voltage DC fan at 17V-24V, so the driving of fan
Galvanic electricity pressure amplitude limit is at 17V-24V, it was also found that alarm then can be triggered less than this voltage in actual application,
Fan likely can be burnt out higher than this voltage.And this fan is with a fault detect line, if adjusted
Joint excessive velocities also can trigger fan alarm, so the P factor being set to 0.2 in actual application, FI sets
Being set to 0.05 (value of P and I needs to be set) according to practical situation, the scope of return difference temperature is set to
+/-2 DEG C, by temperature objectives controlling value TTargetIt is set to 45 DEG C, (environment in the application of common laboratory
Temperature about 22 DEG C).
When start power limiting 8% works, fan is not turned on, and incrementally increases power, when power reaches 9%
Time, IGBT temperature has risen to 47 DEG C, and at this moment fan is opened, and can be shown by temperature test after unlatching
Data discovery temperature constant is at 45 DEG C, and driving voltage is 17.3V.Time again by power increase to 30%, drive
Voltage has risen to 19.9V.And temperature or constant at 45 DEG C.When again power being increased to 56%, drive
Voltage has been raised to 24V, and temperature rises to 45.2 DEG C, then along with the increase of power, IGBT temperature the most gradually goes up
Rising, final full load, temperature stabilization is at 76 DEG C.
After temperature stabilization, starting to reduce output, driving voltage can begin to decline, and IGBT temperature declines,
Until power drops to 8%, temperature starts to fall below 43 DEG C, then time delay 10s, and fan quits work.
By above application result it can be seen that this control method can possess good self-adjusting ability,
It is possible not only to the temperature of regulation IGBT quickly, it is also possible to auto sleep and arousal function, can greatly prolong
The service life of long fan, the energy of the biggest saving.
Claims (2)
1. the fan speed-governing method in an inverter, it is characterised in that comprise the following steps:
(1) starting fan temperature T is set in the controller of fan；
(2) an inverter IGBT control target temperature value is set in the controller of fan, is set to TTarget；
(3) actual temperature value of IGBT in use temperature sensor gathers inverter, it is set to TTest, and this value is sent in the controller of described fan, when actual temperature value TTest is more than starting fan temperature T, controller calculates the driving voltage value of fan according to formula P* (TTest-TTarget)+I* ∫ (TTest-TTarget) dt, control fan to rotate, inverter is lowered the temperature, wherein P and I represents the fan speed-regulating factor, P span is that the span of 0.1-1, I is respectively respectively
0.01-0.1；
Described starting fan temperature T is provided with return difference temperature +/-A DEG C, i.e. reaches when IGBT temperature
When T+A DEG C, then sent fan by controller and enable signal, once after starting fan, given as control target temperature value using temperature T DEG C divided into, controlling to adjust the driving voltage value of fan, affect if over power drop factor, IGBT temperature declines, fan works with minimum speed, during until falling below T-A DEG C at a temperature of IGBT, after time delay, being sent fan by controller do not enable signal, then stopping fan.
Fan speed-governing method in inverter the most according to claim 1, it is characterised in that: the outfan of described controller is provided with fan control, for regulating the response speed of fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403089.6A CN104154022B (en) | 2014-08-15 | 2014-08-15 | Fan speed-governing method in inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403089.6A CN104154022B (en) | 2014-08-15 | 2014-08-15 | Fan speed-governing method in inverter |
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| Publication Number | Publication Date |
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| CN104154022A CN104154022A (en) | 2014-11-19 |
| CN104154022B true CN104154022B (en) | 2016-09-07 |
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| CN201410403089.6A Active CN104154022B (en) | 2014-08-15 | 2014-08-15 | Fan speed-governing method in inverter |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105491852B (en) * | 2015-12-01 | 2017-12-26 | 中船重工鹏力（南京）新能源科技有限公司 | A kind of heat dissipating method of Active Power Filter-APF |
| CN106438433B (en) * | 2016-11-09 | 2017-11-24 | 南京南瑞继保电气有限公司 | The control method for fan and device of a kind of inverter |
| CN109253099B (en) * | 2017-07-13 | 2021-08-03 | 中兴通讯股份有限公司 | Base station fan control method and device |
| CN108872825B (en) * | 2018-05-09 | 2020-11-17 | 浙江埃菲生能源科技有限公司 | Online testing method for high-power IGBT module |
| CN110579075B (en) * | 2018-06-11 | 2021-10-01 | 惠而浦（中国）股份有限公司 | Method and system for controlling variable frequency load rotating speed of refrigerator |
| CN110543196B (en) * | 2019-08-13 | 2021-02-12 | 华为技术有限公司 | Control method and control device for heat dissipation element |
| CN110602922B (en) * | 2019-08-30 | 2020-12-08 | 宁波三星智能电气有限公司 | Charging pile internal temperature control method based on PWM fan control |
| CN114967791A (en) * | 2022-06-30 | 2022-08-30 | 日立电梯（中国）有限公司 | Temperature control method, system, apparatus, computer device, medium and product |
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| JP2003520561A (en) * | 2000-01-20 | 2003-07-02 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Speed control of induction motor with variable voltage-frequency ratio |
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| CN1705159A (en) * | 2004-06-02 | 2005-12-07 | 丰田自动车株式会社 | Cooling device of power supply |
| US7645010B2 (en) * | 2006-09-28 | 2010-01-12 | Fujifilm Corporation | Ink ejection amount measurement method and ink ejection amount measurement system |
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| CN104154022A (en) | 2014-11-19 |
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