CN107092282A - A kind of temperature control method of frequency-charger cabinet - Google Patents
A kind of temperature control method of frequency-charger cabinet Download PDFInfo
- Publication number
- CN107092282A CN107092282A CN201710372714.9A CN201710372714A CN107092282A CN 107092282 A CN107092282 A CN 107092282A CN 201710372714 A CN201710372714 A CN 201710372714A CN 107092282 A CN107092282 A CN 107092282A
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- China
- Prior art keywords
- temperature
- frequency
- cabinet
- charger cabinet
- control method
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
Abstract
The invention discloses a kind of temperature control method of frequency-charger cabinet, the cooling water temperature adjustment cooling water flow first in water-cooling system in frequency conversion tank is so that frequency conversion in-cabinet temperature is in the first preset standard temperature threshold；When the cooling water flow is in limiting value and the frequency conversion in-cabinet temperature is more than the first preset standard temperature threshold, the power converter output in regulation frequency-charger cabinet is so that frequency converter in-cabinet temperature is in the second preset standard temperature threshold.The temperature control method of the frequency-charger cabinet of the present invention has the advantages that easy to operate, control is precisely reliable and cost-effective.
Description
Technical field
The invention mainly relates to converter technique field, a kind of temperature control method of frequency-charger cabinet is refered in particular to.
Background technology
With the fast development of frequency changing driving system, frequency conversion market reaches its maturity, and using increasingly extensively, every profession and trade is to frequency conversion
The reliability requirement of drive system also more and more higher, either frequency conversion drive field still generate electricity by way of merging two or more grid systems field, frequency converter it is prominent
Right disorderly closedown will all produce certain influence to system, and mistakenly stop machine sometimes is also possible to produce certain economic loss, for ship
The fields such as oceangoing ship, mine vehicle, mistakenly stop car is also possible to influence whether vehicle（Ship）Operation safety, therefore, reduce frequency converter mistakenly stop
Machine probability is to ensure one of important measure of frequency converter safe and stable operation.
The frequency changing driving system of modernization, it is unattended into trend, it is necessary to which frequency converter possesses completely by frequency conversion equipment
Self-regulation ability, frequency converter is complicated due to control mode, and influence factor is excessive, easily causes mistakenly stop machine situation, and overtemperature
Protection is as one of important safeguard measure of frequency converter, easily because reaching that protection value causes frequency converter to be shut down, and frequency converter stops
Machine is likely to result in load dead electricity, and causes car（Ship）Run out of steam.In order to ensure that frequency converter is continuously run, there is segmentation scheme use
The mode of temperature control regulation, and employ temperature sensor and enter trip temperature and collect so as to adjust the heat-sinking capability inside frequency converter,
It is final to improve the temperature rise in frequency converter, but such a mode only improves the heat-sinking capability of frequency converter, regulation simply by intake
Mode is single, can not ensure the stable operation of frequency converter when heat-sinking capability reaches capacity, for requiring the highly reliable fortune of frequency converter
Capable industry, such a mode can not meet its demand.The frequency converter or device of temperature control regulation are presently, there are in addition, but due to each row
Industry environment is different, the difference of ambient temperature or outside supply water temperature, will all influence the temperature extremes inside frequency converter, it is adjusted
Section process is larger to the dependence of environment, if environment temperature is higher, and its temperature control regulative mode can not efficiently improve frequency converter
The temperature conditions of internal components, when heat-sinking capability can not meet demand, can only cause component failure or equipment passively to shut down, nothing
Method meets the safe and reliable requirement continuously run of device.
The content of the invention
The technical problem to be solved in the present invention is that：The technical problem existed for prior art, the present invention provides one
Plant temperature control method that is easy to operate, controlling frequency-charger cabinet that is reliable, reducing cost.
In order to solve the above technical problems, technical scheme proposed by the present invention is：
A kind of temperature control method of frequency-charger cabinet, the cooling water temperature adjustment cooling first in water-cooling system in frequency conversion tank
Water-carrying capacity is so that frequency conversion in-cabinet temperature is in the first preset standard temperature threshold；When the cooling water flow be in limiting value and
When the frequency conversion in-cabinet temperature is more than the first preset standard temperature threshold, the power converter output in regulation frequency-charger cabinet
So that frequency converter in-cabinet temperature is in the second preset standard temperature threshold.
It is used as the further improvement of above-mentioned technical proposal：
When the cooling water flow is in limiting value and the frequency conversion in-cabinet temperature is more than the first preset standard temperature threshold
When, the fall of power converter output is adjusted according to the temperature range in the frequency-charger cabinet.
According to concretely comprising the following steps for the fall of the temperature range regulation power converter output in the frequency-charger cabinet：
Temperature signal Tc in S01, in real time collection frequency-charger cabinet；
S02, when temperature signal Tc be more than the first preset temperature value Tb1 when, reduce frequency converter power output；As temperature signal Tc
During more than the second preset temperature value Tb2, the power output of frequency converter, wherein Tb2 are reduced again> Tb1.
In step S02, decline 10%~20% rated output power every time.
In step S02, decline 15% rated output power every time.
The cooling water temperature is the temperature at water inlet pipe in water-cooling system.
By increasing the aperture of the water cooling regulating valve in water-cooling system to increase cooling water flow.
Cooling water temperature in water-cooling system in frequency conversion tank adjusts cooling water flow so that frequency conversion in-cabinet temperature is in
Concretely comprising the following steps in the first preset standard temperature threshold：
S01, in real time collection cooling water temperature Ta；
S02, cooling water temperature Ta and preset temperature value Tb contrasted；Work as Ta>During Tb, increase cooling water flow.
Temperature signal in the frequency-charger cabinet is the temperature at frequency-charger cabinet internal power device.
The second preset standard temperature threshold is more than the first preset standard temperature threshold.
Compared with prior art, the advantage of the invention is that：
The temperature control method of the frequency-charger cabinet of the present invention, is adjusted by early stage water-cooling system and later stage power adjusting is combined
Mode, the heat dissipation capacity in frequency-charger cabinet is controlled, it is ensured that frequency-charger cabinet temperature is in controllable temperature value range, so as to ensure
Each part in frequency-charger cabinet（Mainly frequency converter）Normal operation.
Brief description of the drawings
Fig. 1 is flow chart of the method for the present invention.
Fig. 2 is control block of the invention.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
As depicted in figs. 1 and 2, the temperature control method of the frequency-charger cabinet of the present embodiment, first according to water cooling in frequency conversion tank
Cooling water temperature adjustment cooling water flow in system is so that frequency conversion in-cabinet temperature is in the first preset standard temperature threshold；When
When cooling water flow is in limiting value and frequency conversion in-cabinet temperature and is more than the first preset standard temperature threshold, in regulation frequency-charger cabinet
Power converter output is so that frequency converter in-cabinet temperature is in the second preset standard temperature threshold, wherein the second preset standard temperature
Spend threshold value and be more than the first preset standard temperature threshold.The temperature control method of the frequency-charger cabinet of the present invention, passes through early stage water cooling system
The mode that system regulation and later stage power adjusting are combined, is controlled, it is ensured that frequency-charger cabinet to the heat dissipation capacity in frequency-charger cabinet
Temperature is in controllable temperature value range, so that each part in ensureing in frequency-charger cabinet（Mainly frequency converter）Normal operation.
In the present embodiment, when cooling water flow is in limiting value and frequency conversion in-cabinet temperature is more than preset standard temperature threshold
When, the fall of power converter output is adjusted according to the temperature range in frequency-charger cabinet；Specifically it may include following steps：
Temperature signal Tc in S01, in real time collection frequency-charger cabinet；
S02, when temperature signal Tc be more than the first preset temperature value Tb1 when, reduce frequency converter power output；As temperature signal Tc
During more than the second preset temperature value Tb2, the power output of frequency converter, wherein Tb2 are reduced again> Tb1.Used in the present embodiment
Two grades of temperature ranges carry out power adjusting, easy to adjust；In other embodiments, it would however also be possible to employ more temperature ranges are carried out
Power adjusting, is further ensured that temperature controlled accuracy.
In the present embodiment, in step S02, decline 10%~20% every time（Such as 15%）Rated output power；Fall
Depending on can be according to on-site actual situations.
In the present embodiment, cooling water temperature is the temperature at water inlet pipe in water-cooling system, ensure that the promptness of regulation；
Additionally by the aperture for increasing the water cooling regulating valve in water-cooling system to increase cooling water flow.
In the present embodiment, the cooling water temperature in water-cooling system in frequency conversion tank adjusts cooling water flow so that frequency conversion tank
Interior temperature is in concretely comprising the following steps in the first preset standard temperature threshold：
S01, in real time collection cooling water temperature Ta；
S02, cooling water temperature Ta and preset temperature value Tb contrasted；Work as Ta>During Tb, increase cooling water flow.
In the present embodiment, the temperature signal in frequency-charger cabinet is Primary Component in frequency-charger cabinet（Such as power device）The temperature at place
Degree.
It is provided with as shown in Fig. 2 the inside of frequency-charger cabinet possesses in Water-cooling circulating pipeline, pipeline in cooling-water temperature sensor, cabinet
Other critical components install suitable temperature sensor to detect device environment temperature according to device property.Cooling-water temperature sensor
Temperature collection value sends into control unit in real time, and control unit is compared according to the first preset standard temperature threshold and real-time temperature values
Compared with output control signal, so as to control outside Water-cooling circulating regulating valve（Abbreviation water cooling regulating valve）Switch angle, to reach control
Water temperature inside the purpose of the inside and outside water heat exchange flow of system, final control frequency converter.
On the other hand, when environment temperature designs the maximum temperature that can bear in itself more than frequency-charger cabinet（General frequency conversion
The environment temperature of device cabinet design has higher limit, and below this higher limit, the temperature in frequency-charger cabinet can be exchanged heat by water cooling
It is adjusted）, the temperature rise of lower water temperature now uncontrollable frequency converter, now by being embedded in some particular devices
（Such as the higher power device that generates heat）Neighbouring temperature sensor is acquired to the temperature in this space, the temperature value feeding of collection
Control unit is compared with the first preset standard temperature threshold, if collecting temperature value is higher than the first preset standard temperature threshold
Output control signal, drop work(is carried out to power module of converter, and power drop ratio can be configured according to the actual requirements, purpose
It is that after drop work(the temperature value in cabinet can be made to tend towards stability no longer to rise, so as to ensure the reliable and stable operation of frequency converter.
The temperature control method of the frequency-charger cabinet of the present invention, can be controlled according to temperature change to heat exchange amount in cabinet,
In the case where heat exchange amount can not meet and be radiated in cabinet, pass through the timely reduction to power output, it is ensured that Primary Component in cabinet
Temperature control is in safe range, so as to reach the effect of dynamic regulation, it is ensured that the operational reliability of frequency converter, to reduce frequency conversion
Device is because temperature is too high and protects the number of times shut down, for some key areas, it is ensured that the continuous reliability service of frequency converter is particularly critical,
And operating cost will not be increased.
It the above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention should be regarded as the protection of the present invention
Scope.
Claims (10)
1. a kind of temperature control method of frequency-charger cabinet, it is characterised in that the cooling first in water-cooling system in frequency conversion tank
Coolant-temperature gage adjusts cooling water flow so that frequency conversion in-cabinet temperature is in the first preset standard temperature threshold；When the cooling current
Amount in limiting value and the frequency conversion in-cabinet temperature be more than the first preset standard temperature threshold when, in regulation frequency-charger cabinet
Power converter output is so that frequency converter in-cabinet temperature is in the second preset standard temperature threshold.
2. the temperature control method of frequency-charger cabinet according to claim 1, it is characterised in that at the cooling water flow
When limiting value and the frequency conversion in-cabinet temperature are more than the first preset standard temperature threshold, according in the frequency-charger cabinet
Temperature range adjusts the fall of power converter output.
3. the temperature control method of frequency-charger cabinet according to claim 2, it is characterised in that according in the frequency-charger cabinet
The fall of temperature range regulation power converter output concretely comprise the following steps：
Temperature signal Tc in S01, in real time collection frequency-charger cabinet；
S02, when temperature signal Tc be more than the first preset temperature value Tb1 when, reduce frequency converter power output；As temperature signal Tc
During more than the second preset temperature value Tb2, the power output of frequency converter, wherein Tb2 are reduced again> Tb1.
4. the temperature control method of frequency-charger cabinet according to claim 3, it is characterised in that in step S02, every time under
The rated output power of drop 10%~20%.
5. the temperature control method of frequency-charger cabinet according to claim 4, it is characterised in that in step S02, every time under
The rated output power of drop 15%.
6. the temperature control method of frequency-charger cabinet as claimed in any of claims 1 to 5, it is characterised in that described
Cooling water temperature is the temperature at water inlet pipe in water-cooling system.
7. the temperature control method of frequency-charger cabinet as claimed in any of claims 1 to 5, it is characterised in that pass through
The aperture of the water cooling regulating valve in water-cooling system is increased to increase cooling water flow.
8. the temperature control method of frequency-charger cabinet as claimed in any of claims 1 to 5, it is characterised in that according to
Cooling water temperature adjustment cooling water flow in frequency conversion tank in water-cooling system is so that frequency conversion in-cabinet temperature is in the first preset standard
Concretely comprising the following steps in temperature threshold：
S01, in real time collection cooling water temperature Ta；
S02, cooling water temperature Ta and preset temperature value Tb contrasted；Work as Ta>During Tb, increase cooling water flow.
9. the temperature control method of frequency-charger cabinet as claimed in any of claims 1 to 5, it is characterised in that described
Temperature signal in frequency-charger cabinet is the temperature at frequency-charger cabinet internal power device.
10. the temperature control method of frequency-charger cabinet as claimed in any of claims 1 to 5, it is characterised in that described
Second preset standard temperature threshold is more than the first preset standard temperature threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372714.9A CN107092282A (en) | 2017-05-24 | 2017-05-24 | A kind of temperature control method of frequency-charger cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372714.9A CN107092282A (en) | 2017-05-24 | 2017-05-24 | A kind of temperature control method of frequency-charger cabinet |
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| Publication Number | Publication Date |
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| CN107092282A true CN107092282A (en) | 2017-08-25 |
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ID=59639767
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710372714.9A Pending CN107092282A (en) | 2017-05-24 | 2017-05-24 | A kind of temperature control method of frequency-charger cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989739A (en) * | 2019-11-22 | 2020-04-10 | 浙江中控西子科技有限公司 | Energy-saving frequency conversion industrial electric appliance control cabinet |
| CN117093039A (en) * | 2023-10-18 | 2023-11-21 | 南通西塔自动化科技有限公司 | Water-cooling heat dissipation control method and system for frequency converter |
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| CN103427670A (en) * | 2013-09-06 | 2013-12-04 | 海信（山东）空调有限公司 | Temperature control method of intelligent power module and frequency conversion device |
| CN203482082U (en) * | 2013-09-24 | 2014-03-12 | 上海华菱电站成套设备有限公司 | Air-cooled and water-cooled fully-closed type frequency conversion cabinet |
| CN203474138U (en) * | 2013-09-24 | 2014-03-12 | 上海华菱电站成套设备有限公司 | Cooling device of hoister medium-voltage frequency conversion cabinet |
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Patent Citations (7)
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| CN103427670A (en) * | 2013-09-06 | 2013-12-04 | 海信（山东）空调有限公司 | Temperature control method of intelligent power module and frequency conversion device |
| CN203482082U (en) * | 2013-09-24 | 2014-03-12 | 上海华菱电站成套设备有限公司 | Air-cooled and water-cooled fully-closed type frequency conversion cabinet |
| CN203474138U (en) * | 2013-09-24 | 2014-03-12 | 上海华菱电站成套设备有限公司 | Cooling device of hoister medium-voltage frequency conversion cabinet |
| US20170054187A1 (en) * | 2015-08-18 | 2017-02-23 | Emerson Network Power, Energy Systems, North America, Inc. | Battery heater controllers and infrastructure cabinets including battery heater controllers |
| CN105978299A (en) * | 2016-07-05 | 2016-09-28 | 沈阳远大电力电子科技有限公司 | Water cooling and high voltage frequency converter system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989739A (en) * | 2019-11-22 | 2020-04-10 | 浙江中控西子科技有限公司 | Energy-saving frequency conversion industrial electric appliance control cabinet |
| CN117093039A (en) * | 2023-10-18 | 2023-11-21 | 南通西塔自动化科技有限公司 | Water-cooling heat dissipation control method and system for frequency converter |
| CN117093039B (en) * | 2023-10-18 | 2023-12-26 | 南通西塔自动化科技有限公司 | Water-cooling heat dissipation control method and system for frequency converter |
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Application publication date: 20170825 |
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