CN202851413U - Air cooling control device - Google Patents
Air cooling control device Download PDFInfo
- Publication number
- CN202851413U CN202851413U CN 201220509807 CN201220509807U CN202851413U CN 202851413 U CN202851413 U CN 202851413U CN 201220509807 CN201220509807 CN 201220509807 CN 201220509807 U CN201220509807 U CN 201220509807U CN 202851413 U CN202851413 U CN 202851413U
- Authority
- CN
- China
- Prior art keywords
- fans
- temperature
- air cooling
- control device
- cooling control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000001816 cooling Methods 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 230000010363 phase shift Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Control Of Temperature (AREA)
Abstract
The utility model relates to an air cooling control device. The air cooling control device comprises a temperature detection sensor, a plurality of fans and a programmable logic controller (PLC) module, wherein the PLC module is connected with the temperature detection sensor and is suitable for controlling a corresponding number of the fans to work according to the external temperature. According to the air cooling control device, the PLC module is utilized to replace a traditional relay circuit, so that the defects of tedious wiring and high failure rate of a relay are avoided, the number of the fans is controlled according to the temperature, no fan or a small number of fans is/are turned on in low temperature winter, all fans are turned on for heat dissipation in high temperature summer, and therefore a large amount of electric energy is saved, and the service life of a motor is prolonged.
Description
Technical field
The utility model relates to a kind of wind cooling controller.
Background technique
In the prior art, the transformer of 110kV and following electric pressure often adopts cooling fan that transformer is cooled, and the working condition of cooling fan directly affects the on-load ability of transformer; And air cooling system also often can break down; by statistics; the air cooling system fault mainly is divided into the control loop element fault; and what the reason of control loop fault mainly was that control unit adopts is electromagnetic relay, and these discrete components reliability that works long hours is not high, and rate of fault is high; poor anti jamming capability; cause these elements often to burn, damage, affect the operation of air cooling system, control the technical barrier that whole air cooling system is related domain so how to design a kind of electromagnetic relay that replaces.
The model utility content
The technical problems to be solved in the utility model provides a kind of testing environment temperature that is suitable for the wind cooling controller of control starting fan quantity.
In order to solve the problems of the technologies described above, this is novel to provide a kind of wind cooling controller, comprising: temperature detection sensor, some fans, the PLC module that is suitable for just controlling according to external temperature the fan work of respective numbers that links to each other with described temperature detection sensor.
Further, because motor is inductive load, so in use can cause the wattless power of electrical network to increase, reduce power factor, so necessary during to fan work, utilize chain type SVG(static reacance generator, be also referred to as STATCOM) control gear, improve the power factor in the electrical network, so described wind cooling controller, also comprise: one is suitable for correcting the chain type SVG control gear of power factor, and this chain type SVG control gear is connected in the input end of the three phase mains of described wind cooling controller.
Compared with prior art, this novel wind cooling controller has following advantage: (1) utilizes the PLC module to replace traditional relay circuit, has avoided loaded down with trivial details wiring and the high defective of relay rate of fault; (2) carry out the control of number of fans according to temperature, can not start fan or a small amount of fan the winter lower in temperature, and just need to start whole fan coolings the summer that temperature is higher, saved a large amount of electric energy, also prolonged the life-span of motor; (3) utilize described chain type SVG control gear, correct because machine operation causes the problem of the power factor decline of electrical network, improved the utilization ratio of transformer.
Description of drawings
For this novel content is more likely to be clearly understood, below the specific embodiment and by reference to the accompanying drawings of basis, to this novel being described in further detail, wherein
This novel wind cooling controller structured flowchart of Fig. 1;
This novel chain type SVG control gear structured flowchart of Fig. 2.
Embodiment
Below in conjunction with drawings and Examples to this novel being elaborated:
As shown in Figure 1, a kind of wind cooling controller comprises: temperature detection sensor, some fans, the PLC module that is suitable for just controlling according to external temperature the fan work of respective numbers that links to each other with described temperature detection sensor.
In temperature higher summer, the heating value of transformer is huge, so when the sensor detected temperatures reached 60 degrees centigrade, all fans were all worked; In temperature lower winter, because ambient temperature is lower, so in the not high situation of the heating value of transformer, the fan of can opening less or not blow in.
As shown in Figure 2, wind cooling controller also comprises: one is suitable for correcting the chain type SVG control gear of power factor, and this chain type SVG control gear is connected in the input end of the three phase mains of described wind cooling controller.
Described chain type SVG control gear comprises:
The multi-electrical level inverter of H electric bridge multi-type, it is made of the three-phase H bridge power model that is connected in described three phase mains, wherein, sets up at least one H electric bridge element circuit for subsequent use in every phase H bridge power model;
The auto by pass circuit is located at the output terminal of each H electric bridge element circuit, and when a H electric bridge element circuit is damaged, with this H electric bridge element circuit bypass;
Sample circuit is suitable for gathering the momentary value of the voltage and current of described three phase mains;
Minute phase current independent controling circuit, it links to each other with described sample circuit is suitable for calculating according to the momentary value of the voltage and current of described three phase mains modulation ratio M and the phase angle of the required sinusoidal modulation wave of described pulse-width modulation circuit
Pulse-width modulation circuit links to each other with described minute phase current independent controling circuit, is used for modulation ratio M and phase angle according to described sinusoidal modulation wave
The carrier wave pyramidal wave phase shift SPWM that adopts between each H electric bridge element circuit is controlled; Namely, after the H electric bridge element circuit bypass that damages, this pulse-width modulation circuit is suitable on constant basis of the sampling period that keeps described sample circuit, change the carrier frequency of described carrier wave pyramidal wave phase shift SPWM of a phase H bridge power model at the H electric bridge element circuit place of this damage, to obtain the Sampling waveform of the carrier wave pyramidal wave phase shift SPWM corresponding with remaining H electric bridge element circuit quantity in this phase H bridge power model.
Obviously, above-described embodiment only is for this novel example clearly is described, and is not to be a restriction to this novel mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all mode of executions exhaustive.And these belong to the apparent variation that this novel spirit extends out or change and still are among the novel protection domain of basis.
Claims (2)
1. wind cooling controller is characterized in that comprising: temperature detection sensor, some fans, the PLC module that is suitable for just controlling according to external temperature the fan work of respective numbers that links to each other with described temperature detection sensor.
2. wind cooling controller according to claim 1, characterized by further comprising: one is suitable for correcting the chain type SVG control gear of power factor, and this chain type SVG control gear is connected in the input end of the three phase mains of described wind cooling controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509807 CN202851413U (en) | 2012-09-28 | 2012-09-28 | Air cooling control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509807 CN202851413U (en) | 2012-09-28 | 2012-09-28 | Air cooling control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851413U true CN202851413U (en) | 2013-04-03 |
Family
ID=47982620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220509807 Expired - Fee Related CN202851413U (en) | 2012-09-28 | 2012-09-28 | Air cooling control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840160A (en) * | 2012-09-28 | 2012-12-26 | 江苏省电力公司常州供电公司 | Air cooling control device and working method thereof |
-
2012
- 2012-09-28 CN CN 201220509807 patent/CN202851413U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840160A (en) * | 2012-09-28 | 2012-12-26 | 江苏省电力公司常州供电公司 | Air cooling control device and working method thereof |
| CN102840160B (en) * | 2012-09-28 | 2014-12-24 | 江苏省电力公司常州供电公司 | Air cooling control device and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20170928 |