CN109346280A - A kind of converting operation method suitable for 330kV and above main transformer cooler - Google Patents
A kind of converting operation method suitable for 330kV and above main transformer cooler Download PDFInfo
- Publication number
- CN109346280A CN109346280A CN201811247456.2A CN201811247456A CN109346280A CN 109346280 A CN109346280 A CN 109346280A CN 201811247456 A CN201811247456 A CN 201811247456A CN 109346280 A CN109346280 A CN 109346280A
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- CN
- China
- Prior art keywords
- cooler
- group
- main transformer
- sent
- converting operation
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- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a kind of converting operation methods suitable for 330kV and above main transformer cooler, when detecting the top-oil temperature of main transformer cooler lower than 55 DEG C, variable mode instruction is sent to first group of cooler, the instruction that will stop working is sent to remaining cooler；When the top-oil temperature for detecting main transformer cooler is optionally greater than 55 DEG C and is lower than 65 DEG C, variable mode instruction is sent to first group of cooler and second group of cooler, the instruction that will stop working is sent to remaining cooler；When the top-oil temperature for detecting main transformer cooler is optionally greater than 65 DEG C and is lower than 75 DEG C, variable mode instruction is sent to first group of cooler, second group of cooler and third group cooler, the instruction that will stop working is sent to remaining cooler；When the top-oil temperature for detecting main transformer cooler is greater than or equal to 75 DEG C, the work order by power frequency equal to 50Hz is sent to first group of cooler, second group of cooler and third group cooler, and standby command is sent to remaining cooler.
Description
Technical field
The present invention relates to the power transformer cooling system energy-conserving control technologies of voltage levels, and in particular to one kind is applicable in
In the converting operation method of 330kV and above main transformer cooler.
Background technique
The transformer of the large-scale 330kV and above that put into operation before 2008 domestic, cooling system are generally adopted
With the forced oil and forced air cooled type type of cooling (ODAF/OFAF), operational mode is according to local environment weather, by artificial experience
Judgement, puts into a certain number of cooler groups, continual progress oil temperature heat dissipation in cooler arrangement 24 hours is recycled by oil pump
The heat that transformer core and winding are generated by loss is taken away, then by blower and radiator heat convection.
Traditional cooler controller, inside be all that A.C. contactor and electrothermal relay construct, pass through pasta temperature
The travel switch of degree meter carrys out switching cooler.Two coolers are put into always, put into supplement heat rejecter when temperature is greater than certain value
Device, when temperature be greater than when Cooler Fault, spare cooler can be put into.This control mode principle is simple, but line it is more and
It is complicated, volume is big, high failure rate.
Summary of the invention
To solve deficiency in the prior art, the present invention provides a kind of cold suitable for 330kV and above main transformer
But the converting operation method of device solves 330kV in the prior art and above main transformer cooler transformer oil cooling
The not high technical problem of system automation degree.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of converting operation method suitable for 330kV and above main transformer cooler, it is characterised in that:
When detecting the top-oil temperature of main transformer cooler lower than 55 DEG C, variable mode instruction is sent to first group of cooler,
The instruction that will stop working is sent to remaining cooler；
When the top-oil temperature for detecting main transformer cooler is optionally greater than 55 DEG C and is lower than 65 DEG C, variable mode instruction is sent to
First group of cooler and second group of cooler, the instruction that will stop working are sent to remaining cooler；
When the top-oil temperature for detecting main transformer cooler is optionally greater than 65 DEG C and is lower than 75 DEG C, variable mode instruction is sent to
First group of cooler, second group of cooler and third group cooler, the instruction that will stop working are sent to remaining cooler；
When the top-oil temperature for detecting main transformer cooler is greater than or equal to 75 DEG C, the work order by power frequency equal to 50Hz is sent
To first group of cooler, second group of cooler and third group cooler, standby command is sent to remaining cooler.
It is above-mentioned a kind of cooling suitable for 330kV and above main transformer as a kind of prioritization scheme of the invention
The converting operation method of device: cooler includes first group of cooler, second group of cooler, third group cooler and the 4th group of cooling
Device.
It is above-mentioned a kind of cooling suitable for 330kV and above main transformer as a kind of prioritization scheme of the invention
The converting operation method of device: first group of cooler, second group of cooler, third group cooler, the 4th group of cooler wrap
Include a cooler.
It is above-mentioned a kind of cooling suitable for 330kV and above main transformer as a kind of prioritization scheme of the invention
The converting operation method of device: first group of cooler, second group of cooler include a cooler, and the third group is cooling
Device, the 4th group of cooler include two coolers.
It is above-mentioned a kind of cooling suitable for 330kV and above main transformer as a kind of prioritization scheme of the invention
The converting operation method of device: first group of cooler, second group of cooler, third group cooler, the 4th group of cooler wrap
Include two coolers.
It is above-mentioned a kind of cooling suitable for 330kV and above main transformer as a kind of prioritization scheme of the invention
The converting operation method of device: when the controller for controlling cooler breaks down or the frequency converter of cooler breaks down
When, start security operating mode, under security operating mode first group of cooler, second group of cooler and third group cooler with
The frequency of power frequency 50Hz is run, and the 4th group of cooler is in standby.
It is above-mentioned a kind of cooling suitable for 330kV and above main transformer as a kind of prioritization scheme of the invention
The converting operation method of device: the converting operation frequency of cooler is automatically adjusted by PID negative-feedback.
It is above-mentioned a kind of cooling suitable for 330kV and above main transformer as a kind of prioritization scheme of the invention
The converting operation method of device: cooler passes through PLC or Frequency Converter Control.
Advantageous effects of the invention: the present invention can be configured according to the size and local climate situation of main transformer cooler
The cooler of different number, under normal converting operation mode, the data that can be detected according to temperature sensor adjust each cooling
The workload of device.On the other hand, the converting operation frequency of cooler of the present invention is automatically adjusted by PID negative-feedback, can be realized
Closed-loop control.The operating power that each group cooler can be adjusted in real time according to the monitoring data of temperature sensor, reaches quick
Corresponding and energy-efficient purpose.
When the controller for controlling cooler breaks down or when the frequency converter of cooler breaks down, starting safety
Operational mode, in the secure mode, system default temperature are greater than or equal to 75 DEG C, can be avoided system failure bring oil in this way
The excessively high phenomenon of temperature.In the case where guaranteeing safe operation, maximum energy-saving and noise-reducing, control precision is high, and is suitble to various multiple
Miscellaneous application and environment.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
Present embodiment discloses a kind of frequency conversions suitable for 330kV and above main transformer cooler as shown in Figure 1:
Operation method mainly includes temperature sensor, controller and multiple groups cooler, temperature sensor for realizing the device of the invention
For detecting the temperature of transformer oil liquid top layer, temperature sensor will test signal and be sent to controller, and controller is cold to more
But the working frequency of device is adjusted, and specific adjustment process is as follows:
When detecting the top-oil temperature of main transformer cooler lower than 55 DEG C, variable mode instruction is sent to first group of cooler,
The instruction that will stop working is sent to remaining cooler；When the top-oil temperature for detecting main transformer cooler is optionally greater than 55 DEG C and is lower than
At 65 DEG C, variable mode instruction is sent to first group of cooler and second group of cooler, the instruction that will stop working is sent to it
Remaining cooler；When the top-oil temperature for detecting main transformer cooler is optionally greater than 65 DEG C and is lower than 75 DEG C, variable mode is instructed
It is sent to first group of cooler, second group of cooler and third group cooler, the instruction that will stop working is sent to remaining cooler；
When the top-oil temperature for detecting main transformer cooler is greater than or equal to 75 DEG C, the work order by power frequency equal to 50Hz is sent to the
One group of cooler, second group of cooler and third group cooler, are sent to remaining cooler for standby command.
The cooler of the present embodiment preferably includes first group of cooler, second group of cooler, third group cooler and the 4th
Group cooler, amounts to four groups of coolers.
Four groups of coolers can have four, six or eight, when only four, first group of cooler, second group of cooling
Device, third group cooler, the 4th group of cooler include a cooler.
When there is six, first group of cooler, second group of cooler include a cooler, third group cooler,
Four groups of coolers include two coolers.
When there is eight coolers, first group of cooler, second group of cooler, third group cooler, the 4th group of cooler
It include two coolers.
Operational mode that there are two types of this hair names, first is that above-mentioned normal converting operation mode, second is that security operating mode.When with
When the controller for controlling cooler breaks down or when the frequency converter of cooler breaks down, start security operating mode.This
Under the security operating mode of invention, first group of cooler, second group of cooler and third group cooler are with the frequency of power frequency 50Hz
Operation, i.e. first group of cooler, second group of cooler and third group cooler are fully loaded with work, and the 4th group of cooler is in standby
State, it is spare to make.
The converting operation frequency of cooler of the present invention is automatically adjusted by PID negative-feedback.It can be according to temperature sensor
Monitoring data adjust the operating power of each group cooler in real time, reach quick corresponding purpose.
The controller of the present embodiment can be PLC or Frequency Converter Control.
The present invention can configure the cooler of different number according to the size and local climate situation of main transformer cooler, normal
Under converting operation mode, the workload of each cooler can be adjusted according to the data that temperature sensor detects.On the other hand, originally
The converting operation frequency of invention cooler is automatically adjusted by PID negative-feedback, can be realized closed-loop control.It can be passed according to temperature
The monitoring data of sensor adjust the operating power of each group cooler in real time, reach quick corresponding and energy-efficient purpose.
When the controller for controlling cooler breaks down or when the frequency converter of cooler breaks down, starting safety
Operational mode, in the secure mode, system default temperature are greater than or equal to 75 DEG C, can be avoided system failure bring oil in this way
The excessively high phenomenon of temperature.In the case where guaranteeing safe operation, maximum energy-saving and noise-reducing, control precision is high, and is suitble to various multiple
Miscellaneous application and environment.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of converting operation method suitable for 330kV and above main transformer cooler, it is characterised in that:
When detecting the top-oil temperature of main transformer cooler lower than 55 DEG C, variable mode instruction is sent to first group of cooler,
The instruction that will stop working is sent to remaining cooler；
When the top-oil temperature for detecting main transformer cooler is optionally greater than 55 DEG C and is lower than 65 DEG C, variable mode instruction is sent to
First group of cooler and second group of cooler, the instruction that will stop working are sent to remaining cooler；
When the top-oil temperature for detecting main transformer cooler is optionally greater than 65 DEG C and is lower than 75 DEG C, variable mode instruction is sent to
First group of cooler, second group of cooler and third group cooler, the instruction that will stop working are sent to remaining cooler；
When the top-oil temperature for detecting main transformer cooler is greater than or equal to 75 DEG C, the work order by power frequency equal to 50Hz is sent
To first group of cooler, second group of cooler and third group cooler, standby command is sent to remaining cooler.
2. a kind of converting operation side suitable for 330kV and above main transformer cooler according to claim 1
Method, it is characterised in that: cooler includes first group of cooler, second group of cooler, third group cooler and the 4th group of cooler.
3. a kind of converting operation side suitable for 330kV and above main transformer cooler according to claim 2
Method, it is characterised in that: first group of cooler, second group of cooler, third group cooler, the 4th group of cooler include one
Platform cooler.
4. a kind of converting operation side suitable for 330kV and above main transformer cooler according to claim 2
Method, it is characterised in that: first group of cooler, second group of cooler include a cooler, the third group cooler,
4th group of cooler includes two coolers.
5. a kind of converting operation side suitable for 330kV and above main transformer cooler according to claim 2
Method, it is characterised in that: first group of cooler, second group of cooler, third group cooler, the 4th group of cooler include two
Platform cooler.
6. a kind of converting operation side suitable for 330kV and above main transformer cooler according to claim 1
Method, it is characterised in that: when the controller for controlling cooler breaks down or when the frequency converter of cooler breaks down, open
Dynamic security operating mode, first group of cooler, second group of cooler and third group cooler are under security operating mode with power frequency
The frequency of 50Hz is run, and the 4th group of cooler is in standby.
7. a kind of converting operation side suitable for 330kV and above main transformer cooler according to claim 1
Method, it is characterised in that: the converting operation frequency of cooler is automatically adjusted by PID negative-feedback.
8. a kind of converting operation side suitable for 330kV and above main transformer cooler according to claim 1
Method, it is characterised in that: cooler passes through PLC or Frequency Converter Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811247456.2A CN109346280A (en) | 2018-10-25 | 2018-10-25 | A kind of converting operation method suitable for 330kV and above main transformer cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811247456.2A CN109346280A (en) | 2018-10-25 | 2018-10-25 | A kind of converting operation method suitable for 330kV and above main transformer cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109346280A true CN109346280A (en) | 2019-02-15 |
Family
ID=65311600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811247456.2A Pending CN109346280A (en) | 2018-10-25 | 2018-10-25 | A kind of converting operation method suitable for 330kV and above main transformer cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109346280A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100109883A1 (en) * | 2007-03-20 | 2010-05-06 | Eduardo Pedrosa Santos | Temperature monitoring system for power transformers submerged in oil |
| CN204061254U (en) * | 2014-06-09 | 2014-12-31 | 国家电网公司 | Based on the transformer blower fan of PLC VFC |
| CN104460744A (en) * | 2014-11-13 | 2015-03-25 | 长沙慧林机电科技有限公司 | Cooling control method and cooling control system of large-capacity transformer |
| CN105005260A (en) * | 2013-04-26 | 2015-10-28 | 国网山东省电力公司青岛供电公司 | Intelligent air-cooling frequency conversion energy-saving method and system for transformer |
-
2018
- 2018-10-25 CN CN201811247456.2A patent/CN109346280A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100109883A1 (en) * | 2007-03-20 | 2010-05-06 | Eduardo Pedrosa Santos | Temperature monitoring system for power transformers submerged in oil |
| CN105005260A (en) * | 2013-04-26 | 2015-10-28 | 国网山东省电力公司青岛供电公司 | Intelligent air-cooling frequency conversion energy-saving method and system for transformer |
| CN204061254U (en) * | 2014-06-09 | 2014-12-31 | 国家电网公司 | Based on the transformer blower fan of PLC VFC |
| CN104460744A (en) * | 2014-11-13 | 2015-03-25 | 长沙慧林机电科技有限公司 | Cooling control method and cooling control system of large-capacity transformer |
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Application publication date: 20190215 |
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| RJ01 | Rejection of invention patent application after publication |