CN209447649U - A kind of forced-oil-air cooling intelligent transformer cooling control system - Google Patents
A kind of forced-oil-air cooling intelligent transformer cooling control system Download PDFInfo
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- CN209447649U CN209447649U CN201920302341.2U CN201920302341U CN209447649U CN 209447649 U CN209447649 U CN 209447649U CN 201920302341 U CN201920302341 U CN 201920302341U CN 209447649 U CN209447649 U CN 209447649U
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- 238000001816 cooling Methods 0.000 title claims abstract description 69
- 239000002828 fuel tank Substances 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 15
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 92
- 230000007257 malfunction Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Transformer Cooling (AREA)
Abstract
The utility model relates to a kind of forced-oil-air cooling intelligent transformer cooling control systems, the control system by built-in winding main transformer fuel tank, the cooler group of attached with frequency converters and intelligent air-cooled controller composition, intelligent air-cooled controller is also used to the start and stop of control contactor and cooler group, cooler group includes oil stream sensor, oil pump and blower fan group, oil pump is arranged between oil stream sensor and blower fan group, oil pump is also connect with frequency converter, frequency converter is used to adjust the rate and start and stop of oil pump, oil stream sensor is used to acquire the oil stream information of cooler group, and with negative feedback mode compared with oil stream setting value, after PID mediation algorithm, output specific frequency exchanges electric drive oil pump with voltage；The utility model has the advantages that intelligent level is high, security performance is high, good cooling results.
Description
Technical field
The utility model relates to electric power Cooling Control Technology fields, and in particular to a kind of forced-oil-air cooling intelligent transformer is cooling
Control system.
Background technique
The cooler of forced-oil-air cooling transformer is made of fan, radiator, oil pipe, oil pump oil stream indicator etc..Cooling wind
Fan is for the hot-air emitted in heat exchanger to be discharged, and is to be fixed on cooler ontology with bracket, fan is strong
System blowing, it is cooling to make radiator, to keep the oil in radiator cooling.Radiator is mounted on transformer body surface face, by transformer
Oil radiates, thus cooling.Oil pipe cools down the hot oil transfer in transformer body to radiator, then will be after cooling
Oil is transmitted back to transformer body.Oil pump is mounted in the lower part of cooler, recycles the top oil of heat exchanger to the lower part, it is by transformation
Hot oil in device ontology detaches by force and is delivered to radiator and cooled down, then oil after cooling is transmitted back to transformer body,
To the winding and iron core of cooling inside transformer.
Forced-oil-air cooling transformer is used widely in the large and medium-sized main transformer of substation, China, but there is also some typical cases to ask
Topic, " the water hammer effect of oil tank of transformer caused by the cooler Oil pump electrical machinery such as occurred in the process of running starts without stepless speed control
Answer " cause oil stream it is excessive, further result in main transformer body protection grave gas movement and main transformer relay protection tripping it is serious
Maloperation problem, the rotation of blower one direction are easy to cause cooler cooling fin accumulation floating material to influence heat dissipation problem, pass through people
The problems such as blower maintenance mode of work setting " operation-auxiliary-deactivates " is not intelligent；Therefore it provides a kind of intelligent level is high, peace
Full performance is high, good cooling results forced-oil-air cooling intelligent transformer cooling control systems are necessary.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and it is high, safe to provide a kind of intelligent level
The forced-oil-air cooling intelligent transformer cooling control system of performance height, good cooling results.
Purpose of the utility model is realized as follows: a kind of forced-oil-air cooling intelligent transformer cooling control system, described
Control system is made of the main transformer fuel tank of built-in winding, the cooler group of attached with frequency converters and intelligent air-cooled controller, the intelligence
Energy air-cooled controller for acquiring main transformer fuel tank temperature of top information and ambient temperature information, also use by the intelligent air-cooled controller
In the start and stop of control contactor and cooler group, the cooler group includes oil stream sensor, oil pump and blower fan group, the oil pump
It is arranged between oil stream sensor and blower fan group, the oil pump is also connect with frequency converter, and the frequency converter is for adjusting oil pump
Rate and start and stop, the oil stream sensor is used to acquire the oil stream information of cooler group, and is set with negative feedback mode and oil stream
Value compares, and after PID mediation algorithm, output specific frequency exchanges electric drive oil pump with voltage.
Specific step is as follows for the application method of forced-oil-air cooling intelligent transformer cooling control system described in the utility model:
The intelligent air-cooled controller of step 1) is by acquisition main transformer fuel tank temperature of top information and ambient temperature information, with ring
Border temperature information is input, and by " look-up table ", traversal queries are preset in " the environment temperature n- cooling in intelligent air-cooled controller
Device starts oil temperature definite value n- cooler and stops oil temperature definite value n " data set, obtains current time with oil temperature setting value adaptive mode
The starting of cooler group and shutdown temperature set information, solve and original need to carry out artificial setting cooling in the different time period
The starting of device group and shutdown temperature set information problem；
The intelligent air-cooled controller real-time circulation of step 2 judges collected main transformer oil and the starting of cooler group and shuts down
Temperature set information puts into one group when detecting that main transformer oil is greater than cooler group starting setting value to recycle investing method
Cooler, and the group number of work at present cooler is recorded, when needing next time to put into cooler group, then this cooler group is skipped, to
Next group of cooler sends cooler enabled instruction, has not only extended the service life of cooler, but also to reduce more coolers same
Main transformer grave gas malfunction caused by Shi Qidong increases the impact of power grid and oil tank of transformer oil stream simultaneously further causes master
Become trip risk, establishes the first line of defence for the reliability service of main transformer；
The step 3) present invention concatenates frequency converter between cooler Oil pump electrical machinery contactor and motor, so that intelligence is cooling
The start command that controller issues, starts via frequency converter timing, by acquiring this group of cooler oil pump oil stream information, and with negative
Feedback system is compared with oil stream setting value, and after PID adjusts algorithm, the AC power source for exporting specific frequency and voltage drives oil
Pump motor realizes that the smooth starting of oil pump, i.e. energy conservation reduce impact of the cooler total pressure power frequency startup to power grid, Yi Jibian again
Main transformer grave gas malfunction caused by depressor fuel tank oil stream increases simultaneously further causes transformer tripping risk, is the reliable fortune of main transformer
Row establishes second defence line；
At the same time, intelligent air-cooled controller issues instruction and controls the cooler blower fan group motor step 4), is thrown with recycling
Enter mode and start work, after the operating of setting time, intelligent air-cooled controller issues blower positive and negative rotation again and cuts this group of blower
Control instruction is changed, the wind direction switching of blower is completed；
Step 5) is looped back and forth like this, when intelligent air-cooled controller detects main transformer oil lower than setting value, to cooling
Device motor and blower motor issue halt command.
Intelligent air-cooled controller is as calculating analysis and decision, instruction issue unit.
Not only main transformer top-oil temperature, but also acquisition environment temperature had been acquired, environment temperature is for intelligent air-cooled controller by " tabling look-up
Method " obtains real-time cooler group starting and stops oil temperature setting value.
The starting of blower fan group uses circulation investing method.
Frequency converter is sealed between cooler oil pump contactor and motor, Oil pump electrical machinery starts via frequency converter timing, passes through
This group of cooler oil pump oil stream information is acquired, and with negative feedback mode compared with oil stream setting value, after PID adjusts algorithm,
The AC power source for exporting specific frequency and voltage drives Oil pump electrical machinery, realizes the smooth starting of oil pump.
For blower after the operating of setting time, intelligent air-cooled controller issues blower positive and negative rotation switching control instruction again,
Complete the wind direction switching of blower.
The utility model has the beneficial effects that the utility model relates to a kind of cooling control systems of forced-oil-air cooling intelligent transformer
System, the forced-oil-air cooling intelligent transformer cooling control system is by the main transformer fuel tank of built-in winding, the cooler group of attached with frequency converters
It is formed with intelligent air-cooled controller.The forced-oil-air cooling intelligent transformer cooling control method is: intelligent air-cooled controller is by adopting
Collect main transformer fuel tank temperature of top information and ambient temperature information, obtains the starting of cooler group by oil temperature setting value adaptive algorithm
And shutdown temperature set information puts into one group of cooler when detecting that main transformer oil is greater than the set value to recycle investing method,
The Oil pump electrical machinery of the cooler starts via frequency converter timing, by acquiring this group of cooler oil pump oil stream information, and with negative anti-
Feedback mode drives Oil pump electrical machinery after PID mediation algorithm compared with oil stream setting value, realizes the smooth starting of oil pump, meanwhile,
Intelligent air-cooled controller issues instruction and controls the cooler blower fan group motor, to recycle investing method starting work, this group of blower
After operation setup time, intelligent air-cooled controller issues blower positive and negative rotation control instruction again, completes the direction switching of blower, so
It moves in circles, when intelligent air-cooled controller detects main transformer oil lower than setting value, is sent out to cooler motor and blower motor
Halt command out.The cooler Oil pump electrical machinery that the utility model occurs in the process of running for forced-oil-air cooling transformer is without flat
The oil stream that oil tank of transformer " water hammer effect " caused by sliding speed-adjusting start causes is excessive, further results in the weight of main transformer body protection
The serious maloperation problem of gas movement and main transformer relay protection tripping, the rotation of blower one direction are easy to cause cooler to radiate
Piece accumulation floating material influences heat dissipation problem, maintaining mode by the blower of manually setting " operation-auxiliary-deactivates ", intelligence etc. is not asked
It inscribes, propose a kind of forced-oil-air cooling intelligent transformer cooling control system, solve foregoing problems, reduce cooler group start and stop
Impact of the process to power grid avoids forced-oil-air cooling transformer due to the out-of-limit caused main transformer malfunction trip problem of oil stream, realizes
The intelligent equalization of cooler blower fan group uses, and the intelligent O&M of the safety operation level and equipment that improve power grid is horizontal；
The utility model has the advantages that a kind of intelligent level is high, security performance is high, good cooling results.
Detailed description of the invention
Fig. 1 is the utility model forced-oil-air cooling intelligent transformer cooling control system structure chart.
Fig. 2 is the smooth starting algorithm schematic diagram of the utility model forced-oil-air cooling intelligent transformer cooling control system oil pump.
Fig. 3 is the utility model forced-oil-air cooling intelligent transformer cooling control system blower fan group circulation investment schematic diagram.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
Embodiment
As shown in Figure 1-3, the forced-oil-air cooling intelligent transformer cooling control system of the utility model is by the master of built-in winding
Become fuel tank, the cooler group of attached with frequency converters and intelligent air-cooled controller composition, is got over solving cooler oil pump oil stream above-mentioned
The problems such as serious maloperation of the grave gas movement and main transformer relay protection tripping of the protection of main transformer body caused by limiting.
The intelligent air-cooled controller is for acquiring main transformer fuel tank temperature of top information and ambient temperature information, the intelligence
Air-cooled controller is also used to the start and stop of control contactor and cooler group, the cooler group include oil stream sensor, oil pump and
Blower fan group, the oil pump are arranged between oil stream sensor and blower fan group, and the oil pump is also connect with frequency converter, the frequency converter
For adjusting the rate and start and stop of oil pump, the oil stream sensor is used to acquire the oil stream information of cooler group, and with negative-feedback
Mode is compared with oil stream setting value, and after PID mediation algorithm, output specific frequency exchanges electric drive oil pump with voltage.
The control method of this control system is as follows:
The intelligent air-cooled controller of step 1) is by acquisition main transformer fuel tank temperature of top information and ambient temperature information, with ring
Border temperature information is input, and by " look-up table ", traversal queries are preset in " the environment temperature n- cooling in intelligent air-cooled controller
Device starts oil temperature definite value n- cooler and stops oil temperature definite value n " data set, obtains current time with oil temperature setting value adaptive mode
The starting of cooler group and shutdown temperature set information, solve and original need to carry out artificial setting cooling in the different time period
The starting of device group and shutdown temperature set information problem；
The intelligent air-cooled controller real-time circulation of step 2 judges collected main transformer oil and the starting of cooler group and shuts down
Temperature set information puts into one group when detecting that main transformer oil is greater than cooler group starting setting value to recycle investing method
Cooler, and the group number of work at present cooler is recorded, when needing next time to put into cooler group, then this cooler group is skipped, to
Next group of cooler sends cooler enabled instruction, has not only extended the service life of cooler, but also to reduce more coolers same
Main transformer grave gas malfunction caused by Shi Qidong increases the impact of power grid and oil tank of transformer oil stream simultaneously further causes master
Become trip risk, establishes the first line of defence for the reliability service of main transformer；
The step 3) present invention concatenates frequency converter between cooler Oil pump electrical machinery contactor and motor, as shown in Fig. 2, making
The start command that intelligent cooling controller issues is obtained, is started via frequency converter timing, by acquiring this group of cooler oil pump oil stream
Information, and with negative feedback mode compared with oil stream setting value, after PID adjusts algorithm, export the friendship of specific frequency and voltage
Power drives Oil pump electrical machinery is flowed, realizes that the smooth starting of oil pump, i.e. energy conservation reduce cooler total pressure power frequency startup to power grid again
Impact and oil tank of transformer oil stream increase caused by the malfunction of main transformer grave gas and further initiation transformer tripping risk, be
The reliability service of main transformer establishes second defence line；
At the same time, intelligent air-cooled controller issues instruction and controls the cooler blower fan group motor step 4), is thrown with recycling
Enter mode and start work, as shown in figure 3, the first round starting first and second group of blower of investment, this group of blower pass through 60 minutes
Operating after, be switched to second and third group blower, and so on carry out round circulation.For the wind of each group of starting operation
Machine, intelligent air-cooled controller issued this group of blower positive and negative rotation switching control instruction every 15 minutes, completed the wind direction switching of blower；
Step 5) is looped back and forth like this, when intelligent air-cooled controller detects main transformer oil lower than setting value, to cooling
Device motor and blower motor issue halt command.
By above step, impact of the cooler group total pressure power frequency shutdown process to power grid is reduced, strong oil wind is avoided
Due to the out-of-limit caused main transformer malfunction trip problem of oil stream, the intelligent equalization for realizing cooler blower fan group uses cold transformer,
The forward and reverse commutation of the timing of blower fan group can effectively remove the floating material accumulated on cooler cooling fin, promote cooling effect,
The intelligent O&M of the safety operation level and equipment that improve power grid is horizontal.
Claims (4)
1. a kind of forced-oil-air cooling intelligent transformer cooling control system, it is characterised in that: the control system is by built-in winding
Main transformer fuel tank, attached with frequency converters cooler group and intelligent air-cooled controller composition, the intelligent air-cooled controller is for adopting
Collecting main transformer fuel tank temperature of top information and ambient temperature information, the intelligent air-cooled controller is input with ambient temperature information,
By " look-up table ", traversal queries are preset in " the environment temperature n- cooler starting oil temperature definite value n- in intelligent air-cooled controller
Cooler stop oil temperature definite value n " data set, with oil temperature setting value adaptive mode obtain current time cooler group starting and
Shutdown temperature set information, the intelligent air-cooled controller are also used to the start and stop of control contactor and cooler group, the cooling
Device group includes oil stream sensor, oil pump and blower fan group, and the oil pump is arranged between oil stream sensor and blower fan group, the oil pump
It is also connect with frequency converter, the frequency converter is used to adjust the rate and start and stop of oil pump, and the oil stream sensor is for acquiring cooling
The oil stream information of device group, and with negative feedback mode compared with oil stream setting value, after PID mediation algorithm, export specific frequency
Electric drive oil pump is exchanged with voltage.
2. forced-oil-air cooling intelligent transformer cooling control system according to claim 1, it is characterised in that: the intelligence wind
Cold control is as calculating analysis and decision, instruction issue unit.
3. forced-oil-air cooling intelligent transformer cooling control system according to claim 1, it is characterised in that: the cooler
The starting of group uses circulation investing method.
4. forced-oil-air cooling intelligent transformer cooling control system according to claim 1, it is characterised in that: the intelligence wind
Cold control is used to issue the control instruction of blower fan group positive and negative rotation switching, completes the wind direction switching of blower fan group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920302341.2U CN209447649U (en) | 2019-03-11 | 2019-03-11 | A kind of forced-oil-air cooling intelligent transformer cooling control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920302341.2U CN209447649U (en) | 2019-03-11 | 2019-03-11 | A kind of forced-oil-air cooling intelligent transformer cooling control system |
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| CN209447649U true CN209447649U (en) | 2019-09-27 |
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| CN201920302341.2U Expired - Fee Related CN209447649U (en) | 2019-03-11 | 2019-03-11 | A kind of forced-oil-air cooling intelligent transformer cooling control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645868A (en) * | 2022-03-30 | 2022-06-21 | 东方电气集团东方电机有限公司 | Fan control method, computer device and storage medium |
-
2019
- 2019-03-11 CN CN201920302341.2U patent/CN209447649U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645868A (en) * | 2022-03-30 | 2022-06-21 | 东方电气集团东方电机有限公司 | Fan control method, computer device and storage medium |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190927 |
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| CF01 | Termination of patent right due to non-payment of annual fee |