CN113467536A - Intelligent management system for dynamic load of transformer - Google Patents
Intelligent management system for dynamic load of transformer Download PDFInfo
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- CN113467536A CN113467536A CN202110485471.6A CN202110485471A CN113467536A CN 113467536 A CN113467536 A CN 113467536A CN 202110485471 A CN202110485471 A CN 202110485471A CN 113467536 A CN113467536 A CN 113467536A
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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
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- Automation & Control Theory (AREA)
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Abstract
The invention discloses an intelligent management system for a dynamic load of a transformer, which comprises: the microclimate monitoring device is used for acquiring a field environment signal of the transformer and transmitting the field environment signal to the outdoor control cabinet; the temperature sensors are arranged on the upper oil pipe wall and the lower oil pipe wall of the transformer radiator and used for transmitting the acquired temperature data to the outdoor control cabinet through cables; the outdoor control cabinet is communicated with the indoor control cabinet through a signal transmission optical cable, and transmits a field environment signal and temperature data of upper and lower oil pipe walls of a transformer radiator to the indoor control cabinet; the intelligent transformer load management system comprises an indoor control cabinet, a transformer load intelligent management terminal and a transformer load intelligent management terminal, wherein the indoor control cabinet is provided with the transformer load intelligent management terminal; and the database server is used for receiving the hot spot temperature and the line oil temperature difference index information calculated by the outdoor control cabinet. The embodiment of the invention realizes effective monitoring of the temperature of the hot spot of the transformer and the like, and provides monitoring guarantee for safe operation.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to an intelligent management system for a dynamic load of a transformer.
Background
The power transformer is the most widely used equipment in the power grid, and once the power transformer stops operating due to a fault, the safe operation of the whole power grid is threatened. The hot spot temperature of the transformer is the highest temperature inside the transformer during operation, and is an important index for judging whether the transformer is in a safe operation state. GBT 1094.7-2008 power transformer part 7: the minimum temperature limit value of the overload operation of the transformer is given by the load guide rule of the oil-immersed power transformer (hereinafter called load guide rule), the top oil temperature is 105 ℃, and the hot spot temperature is 140 ℃. When the oil-immersed power transformer operates, the internal temperature index of the oil-immersed power transformer is ensured not to exceed the limit value, and the thermal life of the transformer is ensured not to be lost. The "load guide rule" also gives an operation load curve chart drawn by the transformer under severe environmental conditions (no wind and strong illumination), shows the time that the transformer can safely operate under different environmental temperatures and initial load states, and arranges the operation mode of the transformer according to the time when the operation rule of the transformer is determined. With the increase of the voltage level of the power grid and the increase of the power supply demand, the voltage level and the capacity of the transformer are increased, the intensity of the leakage magnetic field of the transformer is increased with the increase of the capacity of the transformer, the eddy current loss and the stray loss generated by the increase of the capacity of the transformer are increased, and finally the problem of overheating of a winding is possibly caused. Due to the lack of effective monitoring means for the hot spot temperature and the winding temperature of the transformer, the safe operation of the transformer is at risk.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an intelligent management system for the dynamic load of a transformer, which solves the problems of the dynamic load management of the prior transformer, realizes effective monitoring on the hot spot temperature and the like of the transformer, and provides a monitoring guarantee for safe operation.
In order to solve the above problems, the present invention provides an intelligent management system for transformer dynamic load, comprising:
the microclimate monitoring device is used for acquiring a field environment signal of the transformer and transmitting the field environment signal to the outdoor control cabinet;
the temperature sensors are arranged on the upper oil pipe wall and the lower oil pipe wall of the transformer radiator and used for transmitting the acquired temperature data to the outdoor control cabinet through cables;
the remote control unit is used for acquiring three-phase high and medium and low voltage information of the transformer, three-phase high and medium and low current information of the transformer, a transformer top oil temperature value and a transformer on-load switch gear signal, and sending the three-phase high and medium and low voltage information of the transformer, the three-phase high and medium and low current information of the transformer, the transformer top oil temperature value and the transformer on-load switch gear signal to the indoor control cabinet;
the outdoor control cabinet is communicated with the indoor control cabinet through a signal transmission optical cable, and transmits a field environment signal and temperature data of upper and lower oil pipe walls of a transformer radiator to the indoor control cabinet;
the intelligent transformer load management terminal is integrated with a high-precision and rapid transformer hot spot temperature estimation model algorithm, and hot spot temperature and line oil temperature difference indexes of the transformer are calculated based on three-phase high and medium and low voltage information of the transformer, three-phase high and medium and low current information of the transformer, a transformer top oil temperature value, a transformer on-load switch gear signal, a field environment signal and temperature data of upper and lower oil pipe walls of a transformer radiator;
and the database server is used for receiving the hot spot temperature and the line oil temperature difference index information calculated by the outdoor control cabinet.
The intelligent management software system for the transformer dynamic load is used for a user to access data stored on the database server based on a Web client.
The system further comprises:
the cooling control system is connected with the outdoor control cabinet based on a signal cable, and the cooling control system is controlled by the outdoor control cabinet to issue an instruction to carry out automatic alternate switching control on the cooling control system.
The cooling control system includes: the cooler is connected with an outdoor control cabinet based on a temperature signal cable, the cooler is connected with the main transformer cooler control terminal box based on a power cable, and the main transformer cooler control terminal box is connected with the outdoor control cabinet based on a signal cable.
The database server realizes transformer load regulation and control optimization based on transformer hot spot temperature, temperature rise characteristics, transformer substation micrometeorological parameters monitored in real time and transformer operation parameters, and calculates the safety utilization rate and the operation capacity utilization rate of the load rate of the transformer under the current operation working condition.
The microclimate monitoring device is provided with an ultrasonic anemometer which is used for measuring the wind speed of the site environment.
The microclimate monitoring device is provided with an illumination intensity tester, and the illumination intensity tester is used for measuring the illumination intensity of the field environment.
Be provided with temperature sensor on the microclimate monitoring devices, temperature sensor is used for measuring ambient temperature data.
The outdoor control cabinet adopts an analog quantity acquisition module to transmit analog quantity of scattered field data points to the indoor control cabinet through AD conversion.
And the remote motivation and the transformer load management terminal support IEC103, IEC104, IEC61850 and CDT standard protocols for data communication.
According to the embodiment of the invention, the environment signal can be acquired through the transformer dynamic load intelligent management system based on the microclimate monitoring device, different temperature data can be acquired based on the set temperature sensor, the related data of the transformer can be acquired through the moving machine, the high-precision rapid estimation and overload capacity evaluation of the hot spot temperature of the transformer can be realized, and the reasonable transmission capacity of each transformer can be visually displayed, so that the management of users is facilitated, the requirements of different users are met, and the safe and reliable operation management strategy of the transformer load can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an intelligent management system for a dynamic load of a transformer in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 shows a schematic structural diagram of an intelligent management system for a dynamic load of a transformer in an embodiment of the present invention, where the system includes: the system comprises a microclimate monitoring device, a plurality of temperature sensors, a remote control unit, an outdoor control cabinet, an indoor control cabinet, a database server and the like.
The microclimate monitoring device is used for acquiring field environment signals where the transformer is located and sending the field environment signals to the outdoor control cabinet, and the microclimate monitoring device acquires the field environment signals such as wind speed, illumination, ambient temperature and the like.
The temperature sensors are arranged on the upper oil pipe wall and the lower oil pipe wall of the transformer radiator, collected temperature data are sent to the outdoor control cabinet through cables, and the temperature sensors adopt diode thermometers to measure the temperature.
The remote control unit is used for acquiring three-phase high and medium and low voltage information of the transformer, three-phase high and medium and low current information of the transformer, a transformer top oil temperature value and a transformer on-load switch gear signal, and sending the three-phase high and medium and low voltage information of the transformer, the three-phase high and medium and low current information of the transformer, the transformer top oil temperature value and the transformer on-load switch gear signal to the indoor control cabinet.
And the outdoor control cabinet is communicated with the indoor control cabinet through a signal transmission optical cable, and transmits the field environment signal and the temperature data of the upper and lower oil pipe walls of the transformer radiator to the indoor control cabinet.
The intelligent transformer load management terminal is integrated with a high-precision rapid transformer hot spot temperature estimation model algorithm, and hot spot temperature and line oil temperature difference indexes of the transformer are calculated based on three-phase high and medium and low voltage information of the transformer, three-phase high and medium and low current information of the transformer, a transformer top oil temperature value, a transformer on-load switch gear signal, a field environment signal and temperature data of upper and lower oil pipe walls of a transformer radiator.
And the database server is used for receiving the hot spot temperature and the line oil temperature difference index information calculated by the outdoor control cabinet.
The intelligent management software system for the transformer dynamic load is used for a user to access data stored on the database server based on a Web client.
The cooling control system is connected with the outdoor control cabinet based on a signal cable, and the cooling control system is controlled by the outdoor control cabinet to issue an instruction to carry out automatic alternate switching control on the cooling control system.
The cooling control system includes: the cooler is connected with an outdoor control cabinet based on a temperature signal cable, the cooler is connected with the main transformer cooler control terminal box based on a power cable, and the main transformer cooler control terminal box is connected with the outdoor control cabinet based on a signal cable.
The database server realizes transformer load regulation and control optimization based on transformer hot spot temperature, temperature rise characteristics, transformer substation micrometeorological parameters monitored in real time and transformer operation parameters, and calculates the safety utilization rate and the operation capacity utilization rate of the load rate of the transformer under the current operation working condition.
The microclimate monitoring device is provided with an ultrasonic anemometer which is used for measuring the wind speed of the site environment.
The microclimate monitoring device is provided with an illumination intensity tester, the illumination intensity tester is used for measuring the illumination intensity of a field environment, the spectral range of the illumination intensity tester is 300nm to 3000nm, and the illumination test range is 0W/m to 2000W/m2And the nonlinear error of illumination measurement is less than or equal to 3 percent.
Be provided with temperature sensor on the microclimate monitoring devices, temperature sensor is used for measuring ambient temperature data.
The outdoor control cabinet adopts an analog quantity acquisition module to transmit analog quantity of scattered field data points to the indoor control cabinet through AD conversion.
And the remote server and the transformer load management terminal support standard protocols such as IEC103, IEC104, IEC61850, CDT and the like for data communication.
According to the embodiment of the invention, the environment signal can be acquired through the transformer dynamic load intelligent management system based on the microclimate monitoring device, different temperature data can be acquired based on the set temperature sensor, the related data of the transformer can be acquired through the moving machine, the high-precision rapid estimation and overload capacity evaluation of the hot spot temperature of the transformer can be realized, and the reasonable transmission capacity of each transformer can be visually displayed, so that the management of users is facilitated, the requirements of different users are met, and the safe and reliable operation management strategy of the transformer load can be realized.
The above embodiments of the present invention are described in detail, and the principle and the implementation of the present invention are described herein by using specific embodiments, and the description of the above embodiments is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. An intelligent management system for transformer dynamic load, the system comprising:
the microclimate monitoring device is used for acquiring a field environment signal of the transformer and transmitting the field environment signal to the outdoor control cabinet;
the temperature sensors are arranged on the upper oil pipe wall and the lower oil pipe wall of the transformer radiator and used for transmitting the acquired temperature data to the outdoor control cabinet through cables;
the remote control unit is used for acquiring three-phase high and medium and low voltage information of the transformer, three-phase high and medium and low current information of the transformer, a transformer top oil temperature value and a transformer on-load switch gear signal, and sending the three-phase high and medium and low voltage information of the transformer, the three-phase high and medium and low current information of the transformer, the transformer top oil temperature value and the transformer on-load switch gear signal to the indoor control cabinet;
the outdoor control cabinet is communicated with the indoor control cabinet through a signal transmission optical cable, and transmits a field environment signal and temperature data of upper and lower oil pipe walls of a transformer radiator to the indoor control cabinet;
the intelligent transformer load management terminal is integrated with a high-precision and rapid transformer hot spot temperature estimation model algorithm, and hot spot temperature and line oil temperature difference indexes of the transformer are calculated based on three-phase high and medium and low voltage information of the transformer, three-phase high and medium and low current information of the transformer, a transformer top oil temperature value, a transformer on-load switch gear signal, a field environment signal and temperature data of upper and lower oil pipe walls of a transformer radiator;
and the database server is used for receiving the hot spot temperature and the line oil temperature difference index information calculated by the outdoor control cabinet.
2. The intelligent management system for transformer dynamic loads according to claim 1, wherein the database server is installed with an intelligent management software system for transformer dynamic loads, which can centrally display data and give information of current transformer load safe running time, N-1 safe running time, 1.5 times rated load safe running time and 30 minutes safe load, and is used for users to access data stored on the database server based on Web clients.
3. The intelligent management system for transformer dynamic loads according to claim 1, further comprising:
the cooling control system is connected with the outdoor control cabinet based on a signal cable, and the cooling control system is controlled by the outdoor control cabinet to issue an instruction to carry out automatic alternate switching control on the cooling control system.
4. The intelligent management system for transformer dynamic loads according to claim 3, wherein the cooling control system comprises: the cooler is connected with an outdoor control cabinet based on a temperature signal cable, the cooler is connected with the main transformer cooler control terminal box based on a power cable, and the main transformer cooler control terminal box is connected with the outdoor control cabinet based on a signal cable.
5. The intelligent management system for the dynamic load of the transformer according to claim 1, wherein the database server is used for realizing the load regulation and control optimization of the transformer based on the hot spot temperature and the temperature rise characteristic of the transformer, the micro meteorological parameters of the transformer substation monitored in real time and the running parameters of the transformer, and calculating the safety utilization rate and the running capacity utilization rate of the load rate of the transformer under the current running condition.
6. The intelligent management system for the dynamic load of the transformer according to claim 1, wherein an ultrasonic anemometer is disposed on the microclimate monitoring device, and the ultrasonic anemometer is used for measuring the wind speed in the field environment.
7. The intelligent management system for transformer dynamic load according to claim 1, wherein the outdoor control cabinet adopts an analog quantity acquisition module to transmit analog quantity of dispersed field data points to the indoor control cabinet through AD conversion.
8. The intelligent management system for the dynamic load of the transformer according to claim 1, wherein a light intensity tester is disposed on the microclimate monitoring device, and the light intensity tester is used for measuring the light intensity of the field environment.
9. The intelligent management system for transformer dynamic load according to claim 1, wherein a temperature sensor is disposed on the microclimate monitoring device, and the temperature sensor is used for measuring environmental temperature data.
10. The transformer dynamic load intelligent management system according to any one of claims 1 to 9, wherein the remote server and the transformer load management terminal support IEC103, IEC104, IEC61850, CDT standard protocols for data communication.
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| CN202110485471.6A CN113467536A (en) | 2021-04-30 | 2021-04-30 | Intelligent management system for dynamic load of transformer |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080294297A1 (en) * | 2005-12-13 | 2008-11-27 | Siemens Aktiengesellschaft | Control Method for Cooling an Industrial Plant |
| US20110071697A1 (en) * | 2010-10-06 | 2011-03-24 | William Vincent Torre | Smart transformer |
| CN102957208A (en) * | 2012-09-19 | 2013-03-06 | 北开电气集团有限公司 | Intelligent monitoring device of power distribution transformer and control method thereof |
| CN104165660A (en) * | 2014-09-10 | 2014-11-26 | 上海海能信息科技有限公司 | Intelligent distribution and transformation monitoring terminal capable of calculating winding temperature |
| CN104283311A (en) * | 2014-09-25 | 2015-01-14 | 上海海能信息科技有限公司 | Load monitoring and service life evaluation system of transformer |
| CN204205601U (en) * | 2014-11-14 | 2015-03-11 | 国网辽宁省电力有限公司检修分公司 | Transformer loads device for controlling dynamically |
| CN204304606U (en) * | 2014-11-19 | 2015-04-29 | 国家电网公司 | A kind of transformer load prediction and management study system |
| CN104795891A (en) * | 2015-03-12 | 2015-07-22 | 国网浙江海盐县供电公司 | Intelligent main transformer online monitoring system in distribution line |
| CN106643877A (en) * | 2016-11-18 | 2017-05-10 | 西安亚能电气有限责任公司 | Multi-sensing information fusion-based power transformer on-line monitoring system and method |
| CN109962528A (en) * | 2019-02-28 | 2019-07-02 | 国家电网有限公司 | A kind of substation secondary device intelligence managing and control system |
-
2021
- 2021-04-30 CN CN202110485471.6A patent/CN113467536A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080294297A1 (en) * | 2005-12-13 | 2008-11-27 | Siemens Aktiengesellschaft | Control Method for Cooling an Industrial Plant |
| US20110071697A1 (en) * | 2010-10-06 | 2011-03-24 | William Vincent Torre | Smart transformer |
| CN102957208A (en) * | 2012-09-19 | 2013-03-06 | 北开电气集团有限公司 | Intelligent monitoring device of power distribution transformer and control method thereof |
| CN104165660A (en) * | 2014-09-10 | 2014-11-26 | 上海海能信息科技有限公司 | Intelligent distribution and transformation monitoring terminal capable of calculating winding temperature |
| CN104283311A (en) * | 2014-09-25 | 2015-01-14 | 上海海能信息科技有限公司 | Load monitoring and service life evaluation system of transformer |
| CN204205601U (en) * | 2014-11-14 | 2015-03-11 | 国网辽宁省电力有限公司检修分公司 | Transformer loads device for controlling dynamically |
| CN204304606U (en) * | 2014-11-19 | 2015-04-29 | 国家电网公司 | A kind of transformer load prediction and management study system |
| CN104795891A (en) * | 2015-03-12 | 2015-07-22 | 国网浙江海盐县供电公司 | Intelligent main transformer online monitoring system in distribution line |
| CN106643877A (en) * | 2016-11-18 | 2017-05-10 | 西安亚能电气有限责任公司 | Multi-sensing information fusion-based power transformer on-line monitoring system and method |
| CN109962528A (en) * | 2019-02-28 | 2019-07-02 | 国家电网有限公司 | A kind of substation secondary device intelligence managing and control system |
Non-Patent Citations (1)
| Title |
|---|
| 闫宝庚: "基于热路模型的变压器负荷智能系统研究", 《电气时代》 * |
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