CN110197762B - Transformer heat dissipation temperature control method and system - Google Patents
Transformer heat dissipation temperature control method and system Download PDFInfo
- Publication number
- CN110197762B CN110197762B CN201910637913.7A CN201910637913A CN110197762B CN 110197762 B CN110197762 B CN 110197762B CN 201910637913 A CN201910637913 A CN 201910637913A CN 110197762 B CN110197762 B CN 110197762B
- Authority
- CN
- China
- Prior art keywords
- temperature
- transformer
- module
- moment
- current
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
Abstract
The invention discloses a method and a system for controlling the heat dissipation and temperature of a transformer; the temperature acquisition module is used for acquiring temperature signals in the transformer and the transformer cabinet and transmitting the temperature signals to the data processing module for processing. The invention can automatically regulate the temperature when the current signal is abnormal and the fault caused by the temperature factor is judged, all temperature values at each moment are not needed to be considered when the temperature control is carried out, only the required temperature value is considered in a key way, the dimension of the temperature sequence vector is processed along with the increase of time and the collected temperature value, when the calculated amount of the temperature data and the time data is exponentially multiplied, the temperature regulation instruction at the current moment is memorized, and the pressure regulation is carried out on the basis of the temperature regulation at the current moment in the next moment, thereby ensuring the continuity of the pressure regulation process of the transformer node in the temperature regulation.
Description
Technical Field
The invention belongs to the technical field of transformers, and particularly relates to a transformer heat dissipation temperature control method and system.
Background
With the rapid development of the economy of China, the demand of electric energy of China is gradually increased in recent years, the capacity of a transformer is continuously increased, the temperature control requirement is continuously improved, the higher the accuracy of the temperature control is, the higher the operation efficiency of the transformer is, and the transformer has very important significance for maintaining the stable operation of a power system.
Due to the fact that the power grid fluctuates continuously, the sensitivity of the transformer to temperature control is not high enough, the transformer cannot timely feed back the temperature change, the operation efficiency of the transformer is low, the service life of the transformer is shortened, and the secondary cost of the transformer is increased. In the current technology, temperature control usually responds according to data collected by a sensor, but all temperature values at each moment need to be considered in the mode, along with the increase of time and collected temperature values, the dimensionality of a temperature sequence vector is increased, the calculated amount of the temperature data and the time data is exponentially multiplied, not only can calculation delay be brought, but also the performances of temperature control and voltage control of a transformer are reduced, so that the voltage regulation process of a transformer node in temperature regulation is started or stopped, and the risks of overload and overheating of the transformer are increased. The temperature change of the transformer has a process, and if the temperature change cannot be regulated correctly, the transformer can work outside the threshold temperature, which is not allowed.
Disclosure of Invention
The invention aims to overcome the defects and provides a transformer heat dissipation temperature control method which comprises the following steps:
the temperature acquisition module acquires temperature signals in the transformer and the transformer cabinet and transmits the temperature signals to the data processing module for processing;
the data processing module processes the temperature signal and then transmits the temperature signal to the processor module, the processor module compares the temperature signal obtained at the moment with a temperature threshold value stored in the pre-storage module, and when the temperature exceeds the threshold value, a regulation and control signal instruction is output to the temperature regulation module;
and the temperature adjusting module adjusts the temperature in the transformer cabinet according to the regulating and controlling signal instruction.
The invention has the following effects: the invention can automatically adjust the temperature when the current signal is abnormal and the fault caused by the temperature factor is judged, all temperature values at each moment are not needed to be considered when the temperature control is carried out, only the required temperature value is considered in a key way, the dimension of the temperature sequence vector is processed along with the increase of the time and the collected temperature value, when the calculated amount of the temperature data and the time data is exponentially multiplied, the temperature adjusting instruction at the current moment is memorized, the voltage is adjusted at the next moment in an accumulation way on the basis of the temperature adjustment at the current moment, thereby ensuring the continuity of the voltage adjusting process of the transformer node in the temperature adjustment, enabling the voltage adjusting process of the transformer node in the temperature adjustment to be started and stopped, effectively improving the quick adjusting capability of the transformer, reducing the risks of overload and overheating of the transformer and reducing the frequent adjustment of the temperature of the transformer by predicting the temperature at the next moment, the operation times are reduced, and the efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Detailed Description
The invention is further illustrated by the following specific examples:
a heat dissipation temperature control method for a transformer comprises the following steps:
the temperature acquisition module acquires temperature signals in the transformer and the transformer cabinet and transmits the temperature signals to the data processing module for processing;
the data processing module processes the temperature signal and then transmits the temperature signal to the processor module, the processor module compares the temperature signal obtained at the moment with a temperature threshold value stored in the pre-storage module, and when the temperature exceeds the threshold value, a regulation and control signal instruction is output to the temperature regulation module;
and the temperature adjusting module adjusts the temperature in the transformer cabinet according to the regulating and controlling signal instruction.
When the processor module compares the temperature signal acquired at the moment with the temperature threshold stored in the pre-storage module, if the temperature signal at the current moment exceeds the threshold and the temperature signal at the previous moment does not exceed the threshold, the processor module inquires the transformer current signal acquired at the previous moment of the current acquisition module, compares the threshold of the transformer current signal at the current moment with the transformer current signal acquired at the current moment of the current acquisition module, when the threshold is exceeded, simulates various faults of the transformer according to the received current signal, judges the type of the fault, and if the fault type is caused by temperature factors, outputs a regulation and control signal instruction to the temperature adjustment module.
The step of transmitting the temperature signal to the data processing module for processing specifically comprises the following steps: the temperature values collected by the continuous 5 moment temperature collection modules form a temperature value input sequence TM, and the temperature value at each moment comprises a transformer temperature value at the moment and an environment temperature value in a transformer cabinet body:
TM＝(tm1，tm2)T＝(tm1，tm2，…，tmT) (ii) a Wherein T-5 is the size of the time window,
denotes transposition, TM is a two-dimensional vector consisting of the transformer temperature values at 5 moments and the environment temperature value in the transformer cabinet body; weighting the temperature value TM at each moment in the two-dimensional vector TM through a data processing module to obtain a temperature value weight variable
Wherein
Is the weight of the transformer temperature value at the t-th moment or the environmental temperature value in the transformer cabinet body,
the temperature value is a transformer temperature value at the t-th moment or an environment temperature value in a transformer cabinet body, wherein i is 1, 2, …, n; repeating the steps for 5 times by taking each moment as variable input to obtain a weight vector of the temperature value at each moment
Weighting vector for temperature value at each time
Reconstructing and reducing dimension to obtain reconstructed temperature value vector
Predicting the temperature at the next moment:
(ii) a Wherein j is a variable of the loop,
representing the reconstruction error, w (tm)T+1，tm′T+1) Representing the temperature value tm at the next moment in timeT+1And an actual collected temperature value tm'T+1An error of (2); the temperature at the next moment is predicted to be compared with the temperature threshold value stored in the pre-storage moduleAnd comparing, when the temperature exceeds the threshold value, outputting a regulation and control signal instruction to the temperature regulation module, and regulating the temperature in the transformer cabinet by the temperature regulation module according to the regulation and control signal instruction.
When the temperature adjusting module adjusts the temperature in the transformer cabinet according to the adjusting and controlling signal instruction, the reference values of the working power and the working voltage of the transformer node at each moment can be changed, the allowable temperature fluctuation amount in the temperature threshold range can also be changed, the reference values of the working power and the working voltage of the transformer node are updated before the temperature adjustment is carried out at each moment, if the voltage adjusting amount exists on the transformer node at the last moment, the voltage adjusting amount is instantly reduced to 0 when the updating is started at the current moment, the temperature adjusting instruction at the current moment is memorized, and the voltage is adjusted by accumulating on the temperature adjusting basis at the current moment at the next moment, so that the continuity of the voltage adjusting process of the transformer node in the temperature adjustment is ensured.
The system for the temperature control method for transformer heat dissipation comprises the following steps: the device comprises a temperature acquisition module, a current acquisition module, a data processing module, a processor module, a prestoring module and a temperature adjusting module; the temperature acquisition module is connected with the data processing module, and the processor module is respectively connected with the data processing module, the current acquisition module, the prestoring module and the temperature adjusting module.
Claims (2)
1. A heat dissipation temperature control method for a transformer is characterized by comprising the following steps:
the temperature acquisition module acquires temperature signals in the transformer and the transformer cabinet and transmits the temperature signals to the data processing module for processing;
the data processing module processes the temperature signal and transmits the temperature signal to the processor module,
when the processor module compares the temperature signal acquired at the moment with a temperature threshold stored in a pre-storage module, if the temperature signal at the current moment exceeds the threshold and the temperature signal at the previous moment does not exceed the threshold, inquiring a transformer current signal acquired at the previous moment by the current acquisition module, comparing the threshold of the transformer current signal at the current moment with the transformer current signal acquired at the current moment by the current acquisition module by the processor module, when the threshold is exceeded, simulating various faults of the transformer according to the received current signal, judging the type of the fault, and if the fault type is caused by temperature factors, outputting a regulation and control signal instruction to the temperature regulation module;
when the temperature adjusting module adjusts the temperature in the transformer cabinet according to the adjusting and controlling signal instruction, the reference values of the working power and the working voltage of the transformer node at each moment can be changed, the allowable temperature fluctuation amount in the temperature threshold range can also be changed, the reference values of the working power and the working voltage of the transformer node are updated before the temperature adjustment is carried out at each moment, if the voltage adjusting amount exists on the transformer node at the last moment, the voltage adjusting amount is instantly reduced to 0 when the updating is started at the current moment, the temperature adjusting instruction at the current moment is memorized, and the voltage is adjusted by accumulating on the temperature adjusting basis at the current moment at the next moment, so that the continuity of the voltage adjusting process of the transformer node in the temperature adjustment is ensured.
2. The system for controlling the heat dissipation and temperature of the transformer according to claim 1, comprising: the device comprises a temperature acquisition module, a current acquisition module, a data processing module, a processor module, a prestoring module and a temperature adjusting module; the temperature acquisition module is connected with the data processing module, and the processor module is respectively connected with the data processing module, the current acquisition module, the prestoring module and the temperature adjusting module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910637913.7A CN110197762B (en) | 2019-07-15 | 2019-07-15 | Transformer heat dissipation temperature control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910637913.7A CN110197762B (en) | 2019-07-15 | 2019-07-15 | Transformer heat dissipation temperature control method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110197762A CN110197762A (en) | 2019-09-03 |
| CN110197762B true CN110197762B (en) | 2021-03-16 |
Family
ID=67756055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910637913.7A Active CN110197762B (en) | 2019-07-15 | 2019-07-15 | Transformer heat dissipation temperature control method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110197762B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024336A (en) * | 1975-11-28 | 1977-05-17 | Ppg Industries, Inc. | Split bushing control |
| CN203644507U (en) * | 2013-11-27 | 2014-06-11 | 国家电网公司 | Ventilation and heat dissipation system of transformer |
| CN105247374A (en) * | 2012-05-04 | 2016-01-13 | 西门子工业公司 | Methods and systems for measurement and verification weighting with temperature distribution |
| CN106483996A (en) * | 2016-11-03 | 2017-03-08 | 上海和鸣超导变压器有限公司 | A kind of temperature control system of superconduction tractive transformer |
| CN107527134A (en) * | 2017-07-11 | 2017-12-29 | 中国农业大学 | A kind of distribution transformer state evaluating method and device based on big data |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7903381B2 (en) * | 2008-03-11 | 2011-03-08 | Schweitzer Engineering Laboratories, Inc. | Negative sequence differential element |
-
2019
- 2019-07-15 CN CN201910637913.7A patent/CN110197762B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024336A (en) * | 1975-11-28 | 1977-05-17 | Ppg Industries, Inc. | Split bushing control |
| CN105247374A (en) * | 2012-05-04 | 2016-01-13 | 西门子工业公司 | Methods and systems for measurement and verification weighting with temperature distribution |
| CN203644507U (en) * | 2013-11-27 | 2014-06-11 | 国家电网公司 | Ventilation and heat dissipation system of transformer |
| CN106483996A (en) * | 2016-11-03 | 2017-03-08 | 上海和鸣超导变压器有限公司 | A kind of temperature control system of superconduction tractive transformer |
| CN107527134A (en) * | 2017-07-11 | 2017-12-29 | 中国农业大学 | A kind of distribution transformer state evaluating method and device based on big data |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110197762A (en) | 2019-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210255595A1 (en) | Method and system for extracting excess power | |
| CN101958554A (en) | The system, the method and apparatus that are used for the operand power transducer | |
| US20130049478A1 (en) | Power system, method of operation thereof, and controller for operating | |
| JP5766364B1 (en) | Voltage monitoring control device and voltage control device | |
| CN102097827B (en) | Power ramp rate control for renewable variable power generation systems | |
| CN102055241B (en) | Integrated realtime power and solar-electricity station control system | |
| US9954370B2 (en) | Electrical grid control system, electrical grid control method, and power conversion apparatus | |
| JP5393934B1 (en) | Voltage monitoring control device, voltage control device, and voltage monitoring control method | |
| EP2682838A1 (en) | Control device of solar power conversion unit, method of controlling thereof, and solar power generation apparatus | |
| JP6751335B2 (en) | System voltage adjusting system, system voltage adjusting method, and program | |
| CN110391662B (en) | Load side regulation and control device and method for power system and load regulation and control system | |
| US10720777B2 (en) | DC integration of battery for expanding the DC:AC ratio limit of a PV inverter | |
| KR20230019892A (en) | System for controlling output fluctuation of electric power, energe storage system and method | |
| EP4113773B1 (en) | Photovoltaic system and control method | |
| JP2013034372A (en) | System and method for power curtailment in power network | |
| CN107248843A (en) | A kind of control method of photovoltaic generation, control device and photovoltaic generating system | |
| CN110535170B (en) | Grid-connected voltage control method and device for distributed photovoltaic inverter | |
| CN110197762B (en) | Transformer heat dissipation temperature control method and system | |
| KR102509371B1 (en) | Energy storage charging power regulation method and energy management system for grid-connected power generation system with photovoltaic and energy storage | |
| US20190181639A1 (en) | Reactive power control integrated with renewable energy power invertor | |
| CN109638885B (en) | New forms of energy power output control system | |
| CN110970915B (en) | Control method and device for grid-connected voltage of wind generating set | |
| KR20200020972A (en) | DC voltage cooperative control method | |
| AU2019315575B2 (en) | Adaptive voltage bandwidth for a voltage regulation device | |
| CN113258609B (en) | Grid-connected power control method and application system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210104 Address after: 315100 Yimen village, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province (Science and Technology Park) Applicant after: NINGBO YINZHOU ZHUCHUANG INFORMATION TECHNOLOGY Co.,Ltd. Address before: 430000 Liudian Village, Panlongcheng Economic Development Zone, Huangpi District, Wuhan City, Hubei Province Applicant before: WUHAN POWER TRANSFORMER REPAIR Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221118 Address after: 215200 north side of luxui section, 74k, 318 National Road, Lili Town, Wujiang District, Suzhou City, Jiangsu Province Patentee after: Jiangsu Etern Co.,Ltd. Address before: 315100 Yimen village, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province (Science and Technology Park) Patentee before: NINGBO YINZHOU ZHUCHUANG INFORMATION TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |