CN113890193A - Working state monitoring method and system for electric tracing system of transformer substation circuit breaker - Google Patents
Working state monitoring method and system for electric tracing system of transformer substation circuit breaker Download PDFInfo
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- 230000008569 process Effects 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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Abstract
The utility model provides a working state monitoring method and a system for an electric tracing system of a transformer substation breaker, which comprises the following steps: acquiring a transformer substation environment temperature curve and a breaker temperature curve; acquiring the change rate and the real-time temperature of the environmental temperature of the transformer substation at the current moment based on the environmental temperature curve of the transformer substation, and adjusting the working state of the electric tracing system in real time when the change rate and the real-time temperature of the environmental temperature of the transformer substation both meet the condition that a circuit breaker normally works; in the monitoring process of the working state of the electric tracing system, the change rate and the real-time temperature of the circuit breaker at the current moment are acquired based on the temperature curve of the circuit breaker, and the working state of the electric tracing system is optimized and adjusted in real time. The real-time operation state of the electric tracing system is monitored based on the detection of the environment where the transformer substation is located and the real-time temperature of the breaker, digital information acquisition is achieved, the degree of manual participation is reduced, the operation and maintenance cost is effectively reduced, and the safety and reliability of the operation of the transformer substation are improved.
Description
Technical Field
The disclosure belongs to the technical field of transformer substations, and particularly relates to a method and a system for monitoring the working state of an electric tracing system of a transformer substation breaker.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In order to ensure the safe operation of the substation circuit breaker in a low-temperature environment, an electric tracing system needs to be additionally arranged, so that the substation circuit breaker operates at a proper temperature. The electric tracing system is used as a heat insulation material of a breaker of a transformer substation so as to avoid the influence on the running reliability of a power system caused by the fact that the breaker is abnormally operated due to too low temperature. After the electric tracing system is wound on the circuit breaker, the circuit breaker is sealed by using a heat insulation layer, protected and fixed by an iron sheet, and finally wrapped by heat insulation cotton. Therefore, after the electric tracing system is put into use, the real-time operation temperature of the circuit breaker cannot be detected through direct touch or direct use of temperature measuring equipment, and if the temperature of the circuit breaker is too low, the normal operation of the power system is directly influenced.
Therefore, the working state of the circuit breaker in the transformer substation is judged by regular polling of the working personnel, so that higher working strength is brought to the working personnel, and the difficulty of operation and maintenance is increased; the manual inspection has the following problems:
firstly, the inspection is discontinuous, the real-time inspection of each breaker of the transformer substation cannot be realized, the problems of an electric tracing system cannot be found in time, and the normal operation of the transformer substation is directly influenced;
secondly, the working intensity is high, and the manual operation and maintenance cost is high;
thirdly, when the electric tracing system is installed in a high or dangerous place, the inspection is inconvenient;
fourth, there is a lack of quantitative analysis of real-time operational data of electric tracing systems.
Disclosure of Invention
In order to solve the problems, the invention provides a method and a system for monitoring the working state of an electric tracing system of a substation circuit breaker, which are used for monitoring the real-time running state of the electric tracing system based on the detection of the environment of the substation and the real-time temperature of the circuit breaker, realizing digital information acquisition, reducing the degree of manual participation, effectively reducing the operation and maintenance cost and improving the safety and reliability of the operation of the substation.
According to some embodiments, a first aspect of the present disclosure provides a method for monitoring a working state of an electric tracing system of a substation circuit breaker, which adopts the following technical scheme:
a working state monitoring method for an electric tracing system of a substation circuit breaker comprises the following steps:
acquiring a transformer substation environment temperature curve and a breaker temperature curve;
acquiring the change rate and the real-time temperature of the environmental temperature of the transformer substation at the current moment based on the environmental temperature curve of the transformer substation, and adjusting the working state of the electric tracing system in real time when the change rate and the real-time temperature of the environmental temperature of the transformer substation both meet the condition that a circuit breaker normally works;
and in the process of adjusting the working state of the electric tracing system in real time, acquiring the change rate and the real-time temperature of the circuit breaker at the current moment based on the temperature curve of the circuit breaker, and optimizing and adjusting the working state of the electric tracing system in real time.
As a further technical limitation, the change rate and real-time temperature of the ambient temperature of the substation when the circuit breaker is working normally are initially set as required.
And as a further technical limitation, when the change rate and the real-time temperature of the environmental temperature of the transformer substation do not meet the condition of normal work of the circuit breaker, judging whether the real-time temperature of the circuit breaker changes or not, if not, judging that the electric tracing system works abnormally, and if not, judging that the environmental temperature of the transformer substation is abnormal.
As a further technical limitation, in the process of adjusting the working state of the electric tracing system in real time, if the change of the ambient temperature curve of the transformer substation is in positive correlation and the ambient temperature of the transformer substation is greater than the upper limit of the preset ambient temperature threshold, the electric tracing system is turned off.
As a further technical limitation, in the process of adjusting the working state of the electric tracing system in real time, if the change of the transformer substation environment temperature curve is in negative correlation and the transformer substation environment temperature is less than the preset lower limit of the environment temperature threshold, the electric tracing system is started.
Further, if the real-time temperature of the circuit breaker at the current moment is lower than the lowest preset temperature lower limit, or the rising rate of the temperature of the circuit breaker at the current moment is reduced, the parameters of the electric tracing system are optimized while the electric tracing system is started.
Further, if the real-time temperature of the circuit breaker at the current moment is higher than the minimum preset upper temperature limit, parameters of the electric tracing system are optimized while the electric tracing system is started.
According to some embodiments, a second aspect of the present disclosure provides a working state monitoring system for a substation circuit breaker electric tracing system, which adopts the following technical solutions:
a transformer substation circuit breaker electric tracing system operating condition monitoring system includes:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is configured to acquire a transformer substation environment temperature curve and a breaker temperature curve;
the monitoring module is configured to acquire the change rate and the real-time temperature of the environmental temperature of the transformer substation at the current moment based on the environmental temperature curve of the transformer substation, and adjust the working state of the electric tracing system in real time when the change rate and the real-time temperature of the environmental temperature of the transformer substation both meet the condition that the circuit breaker normally works;
and in the process of adjusting the working state of the electric tracing system in real time, acquiring the change rate and the real-time temperature of the circuit breaker at the current moment based on the temperature curve of the circuit breaker, and optimizing and adjusting the working state of the electric tracing system in real time.
According to some embodiments, a third aspect of the present disclosure provides a computer-readable storage medium, which adopts the following technical solutions:
a computer readable storage medium having stored thereon a program which, when executed by a processor, carries out the steps in the method of monitoring the operating condition of a substation breaker electric tracing system according to the first aspect of the disclosure.
According to some embodiments, a fourth aspect of the present disclosure provides an electronic device, which adopts the following technical solutions:
an electronic device comprising a memory, a processor and a program stored on the memory and executable on the processor, the processor implementing the steps of the method for monitoring the operating condition of a substation breaker electric tracing system according to the first aspect of the disclosure when executing the program.
Compared with the prior art, the beneficial effect of this disclosure is:
the real-time operation state of the electric tracing system is monitored based on the detection of the environment where the transformer substation is located and the real-time temperature of the breaker, digital information acquisition is achieved, the degree of manual participation is reduced, the operation and maintenance cost is effectively reduced, and the safety and reliability of the operation of the transformer substation are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
FIG. 1 is a flow chart of a method for monitoring the operating state of an electric tracing system of a breaker of a substation according to an embodiment of the present disclosure;
fig. 2 is a block diagram of a system for monitoring the operating state of an electric tracing system of a breaker of a substation in the second embodiment of the present disclosure.
The specific implementation mode is as follows:
the present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
Example one
The embodiment of the disclosure introduces a method for monitoring the working state of an electric tracing system of a substation circuit breaker.
The working state monitoring method of the electric tracing system of the substation circuit breaker shown in fig. 1 comprises the following steps:
acquiring a transformer substation environment temperature curve and a breaker temperature curve;
acquiring the change rate and the real-time temperature of the environmental temperature of the transformer substation at the current moment based on the environmental temperature curve of the transformer substation;
when the change rate and the real-time temperature of the environmental temperature of the transformer substation both meet the condition that the circuit breaker normally works, the working state of the electric tracing system is adjusted in real time, the change rate and the real-time temperature of the circuit breaker temperature at the current moment are acquired based on the temperature curve of the circuit breaker, and the working state of the electric tracing system is optimized and adjusted in real time;
when the change rate and the real-time temperature of the environmental temperature of the transformer substation do not meet the condition of normal working of the circuit breaker, judging whether the real-time temperature of the circuit breaker changes or not, if not, judging that the electric tracing system works abnormally, otherwise, judging that the environmental temperature of the transformer substation is abnormal;
in the process of adjusting the working state of the electric tracing system in real time, if the change of the environmental temperature curve of the transformer substation is in positive correlation and the environmental temperature of the transformer substation is greater than the upper limit of a preset environmental temperature threshold, the electric tracing system is closed;
in the real-time adjustment of the working state of the electric tracing system, if the change of the environmental temperature curve of the transformer substation is in negative correlation and the environmental temperature of the transformer substation is less than the lower limit of a preset environmental temperature threshold, the electric tracing system is started; specifically, the method comprises the following steps:
if the real-time temperature of the circuit breaker at the current moment is lower than the lowest preset temperature lower limit or the rising rate of the temperature of the circuit breaker at the current moment is reduced, optimizing parameters of the electric tracing system while starting the electric tracing system;
and if the real-time temperature of the circuit breaker at the current moment is higher than the minimum preset upper temperature limit, optimizing the parameters of the electric tracing system while starting the electric tracing system.
As one or more embodiments, the change rate and the real-time temperature of the ambient temperature of the substation during normal operation of the circuit breaker are initially set as required.
In this example, a tank SF6 circuit breaker operating above-20 ℃ was used.
The on-off parameters of the electric heat tracing system comprise slope intervals K1, K2, K3, K4, … and Kn and temperature values C1, C2, C3, C4, … and Cn corresponding to the slope intervals. The setting of initial parameters comprehensively considers the safety working temperature of the circuit breaker, the power and the efficiency of the electric tracing band and the heat preservation condition of the site.
And when the ambient temperature on the outside day changes from minus 8 ℃ to minus 25 ℃, the temperature is 18 o' clock at night for 3 minutes and 25 seconds, the monitoring system monitors that the real-time curve tangent slope of the ambient temperature is minus 2.18, and the real-time temperature is minus 13 ℃, wherein the curve tangent slope of minus 2.18 is positioned in a slope interval K1. The corresponding temperature parameter C1 was-12.9 ℃. And according to the judgment, the electric tracing system is required to be started.
25 minutes and 40 seconds at 8 am on the next day, the monitoring system monitors that the slope of the tangent line of the real-time curve of the ambient temperature is 2.3, and the real-time temperature is-13 ℃, wherein the slope of the tangent line of the curve is 2.3 and is positioned in a slope interval Kn. The corresponding temperature parameter Cn is-14.9 ℃, the condition is met, the electric tracing system is closed, and the circuit breaker is stopped to be heated; analyzing whether the parameter C1 is appropriate or not according to a real-time temperature curve in the circuit breaker after the electric tracing system is started; if not, corresponding adjustment is carried out; after the electric tracing system is closed, analyzing a real-time temperature curve in the circuit breaker to determine whether the parameter C2 is appropriate; if not, corresponding adjustment is carried out.
As one or more embodiments, in order to further ensure the safety and reliability of the operation of the substation and avoid the fault operation caused by an emergency, a certain margin threshold needs to be reserved in the setting of the upper and lower limits of the minimum preset temperature of the temperature change of the circuit breaker.
The embodiment realizes the monitoring of the real-time running state of the electric tracing system by detecting the environment of the transformer substation and the real-time temperature of the breaker, realizes digital information acquisition, reduces the manual participation degree, effectively reduces the operation and maintenance cost, and improves the safe reliability of the operation of the transformer substation.
Example two
The second embodiment of the disclosure introduces a working state monitoring system of a transformer substation circuit breaker electric tracing system, and adopts the working state monitoring method of the transformer substation circuit breaker electric tracing system introduced in the first embodiment.
As shown in fig. 2, the working state monitoring system for electric tracing system of substation breaker includes:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is configured to acquire a transformer substation environment temperature curve and a breaker temperature curve;
the monitoring module is configured to acquire the change rate and the real-time temperature of the environmental temperature of the transformer substation at the current moment based on the environmental temperature curve of the transformer substation, and adjust the working state of the electric tracing system in real time when the change rate and the real-time temperature of the environmental temperature of the transformer substation both meet the condition that the circuit breaker normally works;
in the monitoring process of the working state of the electric tracing system, the change rate and the real-time temperature of the circuit breaker at the current moment are acquired based on the temperature curve of the circuit breaker, and the working state of the electric tracing system is optimized and adjusted in real time.
Specifically, the acquisition module adopts a temperature sensor; the first temperature sensor is arranged on the circuit breaker at a position close to the electric tracing system, is positioned in the heat insulation layer of the electric tracing system and is used for detecting the temperature value of the circuit breaker; the second temperature sensor is arranged on a breaker of the transformer substation in the external environment, is positioned outside the heat insulation cotton of the electric tracing system and directly detects the temperature value of the external environment where the transformer substation is positioned.
In the embodiment, the electric tracing band is adopted by the electric tracing system and surrounds the circuit breaker to provide uniform heating for the circuit breaker. The first temperature sensor is arranged to be a flat structure, is tightly attached to the surface of the electric tracing band, is in direct contact with the electric tracing band, is provided with a signal wire to be led out, and is made of a sealing heat-insulating material on the outermost layer to seal the arc extinguish chamber of the tank-type SF6 circuit breaker, the electric tracing band and the temperature sensor; and acquiring the value of the temperature sensor to obtain the temperature of the electric tracing band in the sealing band.
The monitoring module comprises a control unit, and a communication unit, a display unit, an alarm unit and a current acquisition unit which are respectively connected with the control unit.
The current acquisition unit acquires the current value of the electric tracing system in real time, compares the acquired real-time current value with the rated current value of the electric tracing system, judges the working state of the electric tracing system and is convenient for the subsequent optimization of the parameters of the electric tracing system.
The alarm module sends an alarm signal based on the communication unit; when the change trend and time of the external environment temperature accord with the electric tracing starting strategy, if the electric tracing system is not started, an alarm is started to inform a worker to check the reason or inform the worker whether the electric tracing system starting strategy is normal; when the real-time temperature of the circuit breaker is too low, the circuit breaker is prompted to alarm, and workers are informed to further check.
And the display unit displays the current equipment running state in real time.
In the embodiment, the display unit adopts an LED display screen.
The control unit is used for receiving the data of each data acquisition device and transmitting the data to the local host and the cloud server; in this embodiment, the control unit employs a microcontroller, such as an STM32 minimum system.
Specifically, a first curve of the circuit breaker temperature T1 changing along with time is obtained based on the fact that a first temperature sensor collects the circuit breaker temperature T1, and a second curve of the environment temperature T2 changing along with time is obtained through the fact that a second temperature sensor continuously collects the environment temperature T2.
When the reduction rate and the temperature of the ambient temperature T2 both meet the conditions, starting an electric tracing system for heating; the tracking recording of the ambient temperature T2 and the breaker temperature T1 is continued. Optimizing the parameter condition for turning on the electric tracing system if the T1 temperature change is not as expected (the lowest value of the temperature change curve is too low, resulting in an alarm, or no alarm, but is at a dangerous value, namely near the alarm threshold); under the condition that the slope of the temperature curve of the circuit breaker is the same, when the environmental temperature T2 is higher, the electric tracing system is started; or the ambient temperature T2 is not changed, but the temperature curve of the circuit breaker is more gradual, the electric tracing system is started.
When the reduction rate and the temperature of the ambient temperature T2 both meet the conditions, starting an electric tracing system for heating; the tracking recording of the ambient temperature T2 and the breaker temperature T1 is continued. If the T1 temperature change is not in accordance with the expectation (the lowest value of the temperature change curve is too high, which causes the waste of resources), optimizing the parameter condition for starting the electric tracing system; under the condition that the slope of the temperature curve of the circuit breaker is the same, when the ambient temperature T2 is lower, the electric tracing system is started; or the environment temperature T2 is not changed, but the slope of the temperature curve of the circuit breaker is increased, the electric tracing system is started.
Meanwhile, a large margin is reserved for the upper limit and the lower limit of the minimum temperature change value of the circuit breaker, and the system operation fault caused by emergency is avoided.
When the rising trend of the ambient temperature T2 and the temperature both meet the conditions, the electric tracing system is closed, and the heating is stopped. Continuously tracking and recording the ambient temperature T2 and the breaker temperature T1; optimizing the parameter condition for shutting down the electric tracing system if the T1 temperature change is not expected; under the condition that the slope of the temperature curve of the circuit breaker is the same, when the ambient temperature T2 is higher, the electric tracing system is closed; or the ambient temperature T2 is not changed, but the slope of the temperature curve of the circuit breaker is increased, the electric tracing system is required to be shut down.
And obtaining optimized parameter configuration after learning a large amount of environment temperature change data based on the control unit. And generating a series of safety strategies according to different temperature variation trends and real-time temperature values. Calculating the change trend within a certain time by combining the real-time environment temperature acquisition result of each time with the stored historical data; according to the learned safety strategy, corresponding results are implemented, and the electric tracing system should be turned on or off. After the electric tracing system is turned on or turned off, the current sensor feeds back whether the electric tracing system works normally or not in time; and alarming in time for the abnormal state, and informing the staff of maintenance.
In addition, the working state monitoring system of the electric tracing system of the circuit breaker of the transformer substation further comprises power modules which are connected with the acquisition module and the monitoring module.
In this embodiment, the power module adopts a one-way 220V and two-way 24V redundant power supply mode, which is convenient for field use. One 220V power supply outputs 24V power supply after transformation, rectification and filtering; and the two 24V power supplies are connected in parallel through three diodes to form a power supply for supplying electric energy required by normal operation to the system.
The detailed working step principle of the working state monitoring system of the electric tracing system of the circuit breaker of the transformer substation is the same as that of the working state monitoring method of the electric tracing system of the circuit breaker of the transformer substation provided in the first embodiment, and is not described herein again.
EXAMPLE III
The third embodiment of the disclosure provides a computer-readable storage medium.
A computer readable storage medium, on which a program is stored, which when executed by a processor, implements the steps in the method for monitoring the operating state of a substation breaker electric tracing system according to the first embodiment of the disclosure.
The detailed steps are the same as those of the method for monitoring the working state of the electric tracing system of the substation circuit breaker provided in the first embodiment, and are not described herein again.
Example four
The fourth embodiment of the disclosure provides an electronic device.
An electronic device comprises a memory, a processor and a program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the steps of the method for monitoring the working state of the electric tracing system of the substation circuit breaker according to the first embodiment of the disclosure.
The detailed steps are the same as those of the method for monitoring the working state of the electric tracing system of the substation circuit breaker provided in the first embodiment, and are not described herein again.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. A method for monitoring the working state of an electric tracing system of a substation breaker is characterized by comprising the following steps:
acquiring a transformer substation environment temperature curve and a breaker temperature curve;
acquiring the change rate and the real-time temperature of the environmental temperature of the transformer substation at the current moment based on the environmental temperature curve of the transformer substation, and adjusting the working state of the electric tracing system in real time when the change rate and the real-time temperature of the environmental temperature of the transformer substation both meet the condition that a circuit breaker normally works;
in the monitoring process of the working state of the electric tracing system, the change rate and the real-time temperature of the circuit breaker at the current moment are acquired based on the temperature curve of the circuit breaker, and the working state of the electric tracing system is optimized and adjusted in real time.
2. A method of monitoring the operating condition of a substation circuit breaker electric tracing system as claimed in claim 1, wherein the rate of change of the ambient temperature of the substation and the real time temperature at which the circuit breaker operates normally are initially set as required.
3. The method for monitoring the working state of the electric tracing system of the substation circuit breaker according to claim 1, wherein when the change rate of the environmental temperature of the substation and the real-time temperature do not meet the condition of normal operation of the circuit breaker, it is determined whether the real-time temperature of the circuit breaker changes, if not, the electric tracing system works abnormally, otherwise, the environmental temperature of the substation is abnormal.
4. The method for monitoring the working state of the electric tracing system of the substation circuit breaker according to claim 1, wherein in the process of adjusting the working state of the electric tracing system in real time, if the change of the environmental temperature curve of the substation is in positive correlation and the environmental temperature of the substation is greater than the preset upper limit of the environmental temperature threshold, the electric tracing system is turned off.
5. The method for monitoring the operating condition of the electric tracing system of the substation circuit breaker according to claim 1, wherein in the process of adjusting the operating condition of the electric tracing system in real time, if the ambient temperature curve of the substation is inversely related and the ambient temperature of the substation is less than the preset lower limit of the ambient temperature threshold, the electric tracing system is turned on.
6. The method for monitoring the operating condition of the electric tracing system of the substation circuit breaker according to claim 5, wherein if the real-time temperature of the circuit breaker at the current time is lower than the minimum preset temperature lower limit or the rising rate of the circuit breaker temperature at the current time is slowed down, the parameters of the electric tracing system are optimized while the electric tracing system is turned on.
7. The method for monitoring the operating condition of the electric tracing system of the substation circuit breaker according to claim 5, wherein if the real-time temperature of the circuit breaker at the present time is higher than the minimum preset upper temperature limit, the parameters of the electric tracing system are optimized while the electric tracing system is turned on.
8. A monitoring system for the working state of an electric tracing system of a circuit breaker of a transformer substation is characterized by comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is configured to acquire a transformer substation environment temperature curve and a breaker temperature curve;
the monitoring module is configured to acquire the change rate and the real-time temperature of the environmental temperature of the transformer substation at the current moment based on the environmental temperature curve of the transformer substation, and adjust the working state of the electric tracing system in real time when the change rate and the real-time temperature of the environmental temperature of the transformer substation both meet the condition that the circuit breaker normally works;
in the monitoring process of the working state of the electric tracing system, the change rate and the real-time temperature of the circuit breaker at the current moment are acquired based on the temperature curve of the circuit breaker, and the working state of the electric tracing system is optimized and adjusted in real time.
9. A computer-readable storage medium, on which a program is stored, which program, when being executed by a processor, carries out the steps of the method for monitoring the operating state of a substation breaker electric tracing system according to any one of claims 1 to 7.
10. An electronic device comprising a memory, a processor and a program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of the method for monitoring the operating condition of a substation breaker electric heat tracing system according to any of claims 1-7.
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Effective date of registration: 20231218 Address after: 021008 No.12 Xuefu Road, Hailar District, Hulunbuir City, Inner Mongolia Autonomous Region Applicant after: HULUN BUIR POWER SUPPLY COMPANY, STATE GRID INNER MONGOLIA EASTERN ELECTRIC POWER Co.,Ltd. Applicant after: STATE GRID CORPORATION OF CHINA Applicant after: Inner Mongolia Power Engineering Co.,Ltd. Address before: 021008 No.12 Xuefu Road, Hailar District, Hulunbuir City, Inner Mongolia Autonomous Region Applicant before: HULUN BUIR POWER SUPPLY COMPANY, STATE GRID INNER MONGOLIA EASTERN ELECTRIC POWER Co.,Ltd. Applicant before: STATE GRID CORPORATION OF CHINA Applicant before: SHANDONG HEXIN INTELLIGENT TECHNOLOGY CO.,LTD. Applicant before: Inner Mongolia Power Engineering Co.,Ltd. |