CN112701793B - Box transformer substation power monitoring method and monitoring system - Google Patents
Box transformer substation power monitoring method and monitoring system Download PDFInfo
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- CN112701793B CN112701793B CN202110092869.3A CN202110092869A CN112701793B CN 112701793 B CN112701793 B CN 112701793B CN 202110092869 A CN202110092869 A CN 202110092869A CN 112701793 B CN112701793 B CN 112701793B
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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
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/1659—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The application relates to a box transformer power monitoring method and a box transformer power monitoring system, which comprises the steps of obtaining high-voltage intensity data input from a high-voltage side and low-voltage intensity data output from a low-voltage side in the same time period; judging whether the high voltage intensity is greater than a preset box-type transformer-reducible voltage threshold value or not; if yes, stopping the box transformer substation and transmitting the high-voltage intensity data to the power generation terminal; if not, detecting whether the low voltage intensity is greater than a preset threshold value of the output voltage; if so, stopping the box transformer substation and transmitting the low-voltage intensity data to the box control terminal; if not, the box transformer substation is kept working. This application has the effect that improves case and become work security nature.
Description
Technical Field
The application relates to the field of box-type substations, in particular to a box-type substation power monitoring method and a box-type substation power monitoring system.
Background
The box-type transformer substation is a compact complete distribution device which combines a distribution transformer of high-voltage switch equipment, low-voltage switch equipment, electric energy metering equipment, a reactive compensation device and the like in one or more boxes according to a certain wiring scheme.
In the related art, a box-type substation such as the one disclosed in application publication No. CN112217125A includes a transformer, a high-voltage side control circuit and a low-voltage side control circuit, wherein the high-voltage side control circuit is arranged on the primary side of the transformer, the low-voltage side control circuit is arranged on the secondary side of the transformer, and the transformer further includes a microcomputer, a first switching-on/off module, a second switching-on/off module and a communication module; the communication module transmits the control instruction to the microcomputer; the microcomputer distributes the first control instruction to the first switching-on/off module and distributes the second control instruction to the second switching-on/off module; the first switching-on/off module controls the on/off of the high-voltage side control circuit according to a first control instruction; and the second switching-on and switching-off module controls the on-off of the low-voltage side control circuit according to a second control instruction.
In the transformer substation in the related art, in the use process, high-voltage electricity enters the box transformer substation through the high-voltage side and is subjected to voltage reduction through the transformer, and then low voltage is output from the low-voltage side for use by a user, but in the use process of the box transformer substation, once the high-voltage electricity entering the box transformer substation or the output low-voltage electricity exceeds a critical value which can be borne by the high-voltage side or the low-voltage side, a certain electric leakage situation occurs, and the box transformer substation in the related art does not consider protection in the aspect, so that the inventor thinks that a great potential safety hazard exists in the related art.
Disclosure of Invention
In order to improve the use safety of the box-type substation, the application provides a box-type substation power monitoring method and a box-type substation power monitoring system.
In a first aspect, the present application provides a box substation power monitoring method, which adopts the following technical scheme:
a box-type substation power monitoring method comprises the following steps:
acquiring high voltage intensity data input by a high voltage side and low voltage intensity data output by a low voltage side in the same time period;
judging whether the high voltage intensity is greater than a preset box-type transformer-reducible voltage threshold value or not;
if so, stopping the box transformer substation and transmitting the high-voltage intensity data to the power generation terminal;
if not, detecting whether the low voltage intensity is greater than a preset threshold value of the output voltage;
if so, stopping the box transformer substation and transmitting the low-voltage intensity data to the box control terminal;
if not, the box transformer substation is kept working.
By adopting the technical scheme, when the box-type substation performs voltage reduction operation, in the same time period, the high voltage intensity input to the high voltage side and the magnitude of the threshold value of the output voltage are detected firstly, when the high voltage intensity is greater than the threshold value of the output voltage, the box-type substation can be stopped to operate, so that overheating or electric leakage of the box-type substation caused by the fact that too high voltage is input into the box-type substation is reduced, when the high voltage intensity is smaller than the threshold value of the output voltage, the voltage intensity output by the low voltage side is detected again, when the low voltage intensity is greater than the threshold value of the preset output voltage, the situation that the high voltage is not completely converted into the low voltage is indicated, the electric leakage of the box-type substation is easy to occur, only when the low voltage intensity is smaller than the threshold value of the preset output voltage, the normal operation of the box-type substation is maintained, and the safety in the working process of the box-type substation is improved.
Optionally, when acquiring the high-low voltage intensity data in the same time period, the method includes:
detecting the variation trend of the high and low voltage intensities from the beginning to the end in the same time period;
when the high voltage intensity continuously rises and tends to prepare a high voltage threshold value, a pre-alarm is given to the power generation terminal;
and when the low voltage intensity continuously rises and tends to prepare a low voltage threshold value, pre-alarming is carried out on the box control terminal.
By adopting the technical scheme, the prepared high-voltage threshold value and the prepared low-voltage threshold value are set, so that when the input high voltage is increased and reaches the prepared high-voltage threshold value, and the output low voltage is still in a higher condition and reaches the prepared low-voltage threshold value, an alarm can be given in advance to prevent the voltage from being subsequently increased and cannot be processed in time, and the working safety of the box-type substation is further improved.
Optionally, when the trend of the high-low voltage intensity variation in the same time period is detected, the method includes:
recording the starting time point and the ending time point of the high voltage intensity rising trend;
detecting the variation trend of the low voltage intensity output by the low voltage side corresponding to the high voltage intensity rising starting time point and the high voltage intensity rising ending time point;
when the low voltage intensity also shows the rising trend, recording as the low voltage intensity rising prediction in the same time period;
and pre-adjusting and alarming when the prediction times of the low voltage intensity rise recorded from the voltage intensity rise starting time point to the voltage intensity rise ending time point of the time period reach X times, wherein X is more than or equal to 3.
By adopting the technical scheme, when the high-voltage strength is detected to have a rising trend in the same time period, the starting time point and the ending time point in the rising process are recorded, the change condition of the low-voltage strength in the time of the high-voltage strength rising process is searched, once the low-voltage strength is raised in the same way and reaches a certain number of times, the condition that the voltage of the transformer is not reduced in time exists, the alarm can be adjusted at the moment, and the box transformer problem can be checked in time.
Optionally, the recording an ending time point of the high voltage intensity rising trend includes:
acquiring the end time of detecting the change trend of the high and low voltage intensities in the same time period;
when the recorded high-low voltage intensity rising trend ending time point exceeds the ending time of the time period, the detection of the high-low voltage intensity changing trend by the time period is continued to the next time period adjacent to the time period.
By adopting the technical scheme, when the rising trend of the high and low voltage intensities in the same time period is detected and the maximum time point of the time period is reached in the rising process, the detection of the high and low voltage intensities is continued to the next time period so as to determine the rising time of the high and low voltage intensities.
Optionally, when the detection time period of the high-low voltage intensity variation trend is continued, the detected time period is extended to a range of a next time period corresponding to the high-low voltage intensity increase trend ending time point, and the time of the next time period is shortened at the same time, and the starting time point of the next time period is defined as the extended high-low voltage intensity increase trend ending time.
By adopting the technical scheme, the time period of the detection is prolonged, so that the time for rising the high-low voltage intensity is better counted, and the time period for rising the high-low voltage intensity is more clearly known.
Optionally, the method further includes dividing the time of each day into a plurality of time periods for acquiring high voltage intensity data input by the high voltage side and low voltage intensity data output by the low voltage side;
acquiring a starting time point and an ending time point of a corresponding high voltage intensity rising trend in each time period, and recording as a conventional high voltage intensity change interval;
detecting the high voltage intensity change trend from the beginning to the end time point in the conventional high voltage intensity change interval;
when the high voltage intensity rising trend appears in the conventional high voltage intensity change interval of each time period in one day, pre-adjustment alarming is carried out when the conventional high voltage intensity change interval begins to enter the next day.
Through adopting above-mentioned technical scheme, through separating for a plurality of time quantums every day to high voltage intensity in every time quantums changes and detects, in case there is every time quantums when all appearing the high voltage rising trend, carries out subsequent pre-adjustment and reports to the police, so that better control box becomes work.
In a second aspect, the present application provides a box substation power monitoring system, which adopts the following technical scheme:
a box substation power monitoring system comprising:
the data acquisition module is used for acquiring high-voltage intensity data input by a high-voltage side and low-voltage intensity data output by a low-voltage side in the same time period;
the first detection module is preset with a box transformer reducible voltage threshold and an outputable voltage threshold and is used for detecting the magnitudes of the high voltage intensity, the box transformer reducible voltage threshold and the low voltage intensity, and the outputable voltage threshold;
the transmission stopping module is used for stopping the box transformer substation from working and transmitting high-voltage intensity data to the power generation terminal and transmitting low-voltage intensity data to the box transformer substation terminal when the high-voltage intensity is greater than a voltage threshold which can be reduced by the box transformer substation or the low-voltage intensity is greater than an output voltage threshold;
and otherwise, when the high voltage intensity is smaller than the voltage threshold which can be reduced by the box transformer or the low voltage intensity is smaller than the voltage threshold which can be output, the box transformer is kept to work.
Optionally, the method further includes:
the intensity trend detection module is used for detecting the intensity change trend of high and low voltages from beginning to end in the same time period;
and the pre-alarm module is preset with a prepared high-voltage threshold and a prepared low-voltage threshold, and is used for pre-alarming to the power generation terminal when the high-voltage intensity continuously rises and tends to the prepared high-voltage threshold, and pre-alarming to the box control terminal when the low-voltage intensity continuously rises and tends to the prepared low-voltage threshold.
Optionally, the method further includes:
the recording module is used for recording the starting time point and the ending time point of the rising trend of the high voltage intensity when detecting the high and low voltage intensity variation trend in the same time period;
the second detection module is used for detecting the variation trend of the low voltage intensity output by the low voltage side corresponding to the high voltage intensity rising starting time point and the high voltage intensity rising ending time point;
a recording module for recording the low voltage intensity rising prediction in the same time period when the low voltage intensity rising trend appears between the high voltage intensity rising starting time point and the high voltage intensity rising ending time point;
the pre-adjustment alarm module is used for carrying out pre-adjustment alarm on the box transformer substation when the prediction times of low voltage intensity increase recorded between the starting time point and the ending time point of high voltage intensity increase reach X times, wherein X is more than or equal to 3;
the time acquisition module is used for acquiring the end time of detecting the change trend of the high and low voltage intensities in the same time period when the rising trend of the high voltage intensity is ended;
and the time duration module is used for continuing the detection of the high-low voltage intensity change trend of the time period to the next time period adjacent to the time period when the high-voltage intensity increase trend ending time point exceeds the ending time of the time period.
Optionally, the method further includes:
the time period separation module is used for dividing the time of each day into a plurality of time periods for acquiring high voltage intensity data input by the high voltage side and low voltage intensity data output by the low voltage side;
the interval registration module is used for acquiring a starting time point and an ending time point of the corresponding high-voltage intensity rising trend in each time period and recording the starting time point and the ending time point as a conventional high-voltage intensity change interval;
the third detection module is used for detecting the high-voltage intensity change trend from the beginning to the end time point in the conventional high-voltage intensity change interval;
and the pre-adjustment alarm module performs pre-adjustment alarm when entering the conventional high-voltage intensity change interval from the next day when the conventional high-voltage intensity change interval of each time period in one day has a high-voltage intensity rising trend.
In summary, the present application includes at least one of the following beneficial technical effects:
by detecting the high voltage intensity and the low voltage intensity in the same time period, when the high voltage intensity is greater than the voltage-reducing threshold value of the box transformer substation or the low voltage intensity is greater than the voltage-outputting threshold value, the box transformer substation is stopped to work, and the safety of the box transformer substation in the working process is improved.
Drawings
Fig. 1 is a schematic flow chart of the first embodiment of the present application.
Fig. 2 is a schematic flow chart of the principle of the embodiment of the present application.
Fig. 3 is a schematic flow chart diagram three of the principle of the embodiment of the present application.
Fig. 4 is a schematic structural diagram of an embodiment of the present application.
Description of reference numerals: 1. a data acquisition module; 2. a first detection module; 3. stopping the transmission module; 4. an intensity trend detection module; 5. a pre-alarm module; 6. a recording module; 7. a second detection module; 8. recording a module; 9. a pre-adjustment alarm module; 10. a time acquisition module; 11. a time duration module; 12. a time period separating module; 13. an interval registration module; 14. and a third detection module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1-4 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The embodiment of the application discloses a box substation power monitoring method.
Referring to fig. 1, the box-type substation power monitoring method specifically includes the following steps:
step S100, high voltage intensity data input at the high voltage side and low voltage intensity data output at the low voltage side are obtained in the same time period.
Specifically, the high-voltage side of the box-type substation is a high-voltage cabinet, the low-voltage side of the box-type substation is a low-voltage cabinet, and the high voltage is input to the high-voltage cabinet through a line and then is output from the low-voltage cabinet through a transformer, in this embodiment, the normal input voltage of the high-voltage side is preferably 10kv, and the normal output voltage of the low-voltage side is preferably 380V, and when the input high voltage and the output low voltage are obtained, the same time period needs to be in the same time period, but is not limited to one hour unit, for example, 11 pm to 12 pm or 8 pm to 9 pm in one day.
And step S200, judging whether the high voltage intensity is greater than a preset box-type transformer-type voltage-reducing threshold value.
Specifically, the box-type substation reducible voltage threshold is preferably the maximum voltage that can be borne by the box-type substation, the box-type substation reducible voltage threshold in this embodiment may be, but is not limited to 11KV, and when the input high-voltage intensity data is acquired, the high-voltage intensity data needs to be compared with the size of the box-type substation reducible voltage threshold.
If yes, the box transformer stops working and transmits the high-voltage intensity data to the power generation terminal.
Specifically, when the high-voltage intensity data is greater than the voltage threshold that can be reduced by the box transformer substation, it indicates that the input high-voltage data exceeds the voltage that can be reduced by the box transformer substation, at this time, the operation of the box transformer substation is stopped, and the acquired high-voltage intensity data is transmitted to the power generation terminal.
If not, detecting whether the low voltage intensity is larger than a preset threshold value of the output voltage.
Specifically, when the high-voltage intensity data is smaller than the voltage threshold which can be reduced by the box transformer substation, the box transformer substation can reduce the input high-voltage intensity data, and at the moment, the low-voltage intensity data output by the low-voltage cabinet can be compared with the threshold which can be output.
If yes, the box transformer substation stops working and transmits the low-voltage intensity data to the box control terminal.
Specifically, when the low-voltage intensity data is greater than the threshold of the outputable voltage, it indicates that the step-down processing of the high-voltage by the transformer cannot meet the output standard, and at this time, the operation of the box-type substation is stopped to reduce the leakage of electricity exceeding the threshold of the outputable voltage, and the acquired low-voltage intensity data is transmitted to the box control terminal, which may be, but is not limited to, a microcomputer on the box-type substation, a mobile phone of a worker, and the like.
If not, the box transformer substation is kept working.
Specifically, when the low-voltage intensity data is smaller than the threshold of the outputable voltage, it indicates that the low-voltage output after the transformer steps down the high-voltage reaches the output standard, and normal power supply can be performed.
Referring to fig. 2, further, when acquiring the high-low voltage intensity data in the same time period, the method specifically includes the following steps:
in step S110, the high-low voltage intensity variation trend from the beginning to the end in the same time period is detected.
Specifically, in the same time period of the box transformer operation, the same time period in this embodiment is preferably a time period in units of one hour, such as 11 pm to 12 pm or 8 pm to 9 pm in one day, and changes of the high voltage intensity data and the low voltage intensity data in one hour from 11 pm to 12 pm are detected, taking 11 pm to 12 pm as an example.
When the high voltage intensity continuously rises and tends to prepare a high voltage threshold value, a pre-alarm is given to the power generation terminal.
Specifically, the preliminary high voltage threshold is preferably a high voltage value which can start to remind when the high voltage strength reaches the voltage threshold which can be reduced by the box transformer, and when the high voltage strength data is increased and gradually reaches the preliminary high voltage threshold in the detection time from the point 11 to the point 12, a pre-alarm message is sent to the power generation terminal to remind the power generation terminal of paying attention to the situation that the voltage is continuously increased in the box transformer, and a warning that the voltage threshold which can be reduced by the box transformer is reached exists, so that a worker of the power generation terminal can prepare for reducing the transmission voltage of a line where the box transformer is located in advance.
And when the low voltage intensity continuously rises and tends to prepare a low voltage threshold value, pre-alarming is carried out on the box control terminal.
Specifically, the prepared low-voltage threshold is preferably a low-voltage numerical value which can start to remind when the low-voltage intensity reaches the threshold capable of outputting the voltage, and when the low-voltage intensity data after voltage reduction is increased and gradually reaches the threshold capable of outputting the voltage in the detection time from the point 11 to the point 12, a pre-alarm message is sent to the box control terminal to remind the box control terminal of paying attention to the fact that the low voltage after voltage reduction starts to be continuously increased in the box transformer and give a warning that the low voltage reaches the threshold capable of outputting the voltage, so that a worker of the box control terminal can prepare for stopping the box transformer in advance.
Further, when the variation trend of the high and low voltage intensities in the same time period is detected, the method specifically comprises the following steps:
in step S120, the starting time point and the ending time point of the high voltage strength rising trend are recorded.
Specifically, in the detection period from the beginning of point 11 to the end of point 12, the time point of acquisition of each high voltage intensity data is recorded in real time, which may be, but is not limited to, 10 minutes at point 11 and 20 minutes at point 11, so that when the high voltage intensity data has a rising trend, the time at which the high voltage intensity data starts rising, for example, 10 minutes at point 11, and the time at which the high voltage intensity data finishes rising, for example, 20 minutes at point 11, are recorded specifically; the judgment of the rise of the high voltage intensity data is based on the occurrence of high voltage data larger than the current time after the current time point, for example, a high voltage intensity data is obtained at 11 o ' clock 10 min, and a data larger than the high voltage intensity data at 11 o ' clock 10 min is obtained at 11 o ' clock 11 min; the judgment of the end-of-rise of the high voltage intensity data is based on the occurrence of high voltage data smaller than the current time at a time after the current time point, for example, one high voltage intensity data is obtained at 11 o ' clock 20, and one data smaller than the 11 o ' clock 20 is obtained at 11 o ' clock 21.
In step S130, a variation trend of the low voltage intensity output from the low voltage side corresponding to the high voltage intensity increase start time point and the high voltage intensity increase end time point is detected.
Specifically, when it is detected that the high voltage intensity data has a rising trend, for example, from 11 o 'clock 10 to 11 o' clock 20, the high voltage intensity data continues rising, and then the low voltage intensity data outputted from the low voltage side from 11 o 'clock 10 to 11 o' clock 20 is detected to determine the corresponding variation.
In step S140, when the low voltage level also shows a rising trend, it is recorded as a low voltage level rising prediction in the same time period.
Specifically, when it is detected that the low voltage intensity data is also increased from 11 o 'clock 10 to 11 o' clock 20, it is defined as a low voltage intensity increase prediction in the same period, i.e. it indicates that the low voltage data output from the low voltage side is affected by the high voltage data input from the high voltage side, and it can prove that the step-down function of the transformer is problematic.
And step S150, performing pre-adjustment alarm when the predicted times of low voltage intensity increase recorded from the voltage intensity increase starting time point to the voltage intensity increase ending time point of the time period reach X times, wherein X is more than or equal to 3.
Specifically, between 11 o ' clock 10 minutes and 11 o ' clock 20 minutes, the high voltage intensity data of the high voltage side and the low voltage intensity data of the low voltage side all appear rising trend, and when the same condition appears 3 times or more, can carry out the preset alarm, need remind the staff promptly to do and detect the preparation of changing the transformer even to the case becomes, reducible data detection's contingency simultaneously to confirm that the case becomes to have the problem.
Further, when the ending time point of the high voltage intensity rising trend is recorded, in this embodiment, it is preferable that, when the high voltage intensity rising trend is generated, a time corresponding to the data of the high voltage intensity smaller than the maximum data of the high voltage intensity rising trend appears, but not limited to 11 points and 20 minutes, and the recording process further includes the following steps:
and acquiring the end time of the same time period for detecting the change trend of the high and low voltage intensities.
Specifically, in the present embodiment, the time period corresponding to the trend of the high-low voltage intensity increase occurring between 11 points 10 and 11 points 20 is preferably 11 points to 12 points, and thus the end time is preferably 12 points.
When the recorded high-low voltage intensity rising trend ending time point exceeds the ending time of the time period, the detection of the high-low voltage intensity changing trend by the time period is continued to the next time period adjacent to the time period.
Specifically, taking the time period from 11 o ' clock to 12 o ' clock as an example, the time point of the rising trend of the high and low voltage intensities in the time period may be from 11 o ' clock 10 to 11 o ' clock 20, the time point of the ending time of the rising trend is 11 o ' clock 20, which is earlier than 12 o ' clock, and once the time of the rising trend of the high and low voltage intensities in the time period from 11 o ' clock to 12 o ' clock 05, the time point of the ending time of the rising trend is 12 o ' clock 05, which is later than 12 o ' clock, the time period of the rising trend of the high and low voltage intensities detected between 11 o ' clock and 12 o ' clock needs to be extended to the next time period of 12 o ' clock 05 to ensure the accuracy of the maximum data of the obtained high and low voltage intensities.
Further, when the detection time period of the high-low voltage intensity variation trend continues, the detected time period is prolonged to the range of the next time period corresponding to the end time point of the high-low voltage intensity increase trend, the time of the next time period is shortened at the same time, and the start time point of the next time period is set as the prolonged end time of the high-low voltage intensity increase trend.
Specifically, the data acquisition of the rising trend of the high-low voltage intensity in the time period from 11 to 12 points is continued to 12 to 05 minutes, that is, the specific time in the time period from 11 to 12 points is modified into the time period from 11 to 12 to 05 minutes, and the time period from 12 to 13 points is modified into the time period from 12 to 05 to 13 points, so as to ensure the accuracy of the data and the change time acquisition when the rising trend of the high-low voltage intensity occurs.
Referring to fig. 3, in addition to the working hours of the box transformer substation per day, the present embodiment further includes:
step S300, dividing the time of day into a plurality of time periods for acquiring the high voltage intensity data input from the high voltage side and the low voltage intensity data output from the low voltage side.
Specifically, in this embodiment, preferably, one hour is taken as one time period, the operating time of the box transformer substation in one day is divided into 24 time periods, and each high-voltage intensity data input from the high-voltage side and each low-voltage intensity data output from the low-voltage side are acquired in each time period.
Step S400, acquiring a start time point and an end time point of the corresponding high voltage intensity rising trend in each time period, and recording as a regular high voltage intensity variation interval.
Specifically, when a trend of an increase in the high-voltage intensity occurs in a certain period of time, a specific increase start time and an increase end time are recorded, and this time interval from the increase start time to the increase end time is defined as a regular high-voltage intensity variation interval.
Step S500, detecting a high voltage intensity variation trend from a start time point to an end time point within a regular high voltage intensity variation interval.
Step S600, when the high voltage intensity rising trend appears in the conventional high voltage intensity change interval of each time period in one day, pre-adjusting alarm is carried out when the conventional high voltage intensity change interval begins to enter the conventional high voltage intensity change interval in the next day.
Specifically, the change condition of the high-voltage intensity data in the conventional high-voltage intensity change interval corresponding to each divided time period is detected, when the high-voltage intensity data in each time period in the 24 time periods shows a rising trend in the time interval of the conventional high-voltage intensity change interval, when the box transformer works on the next day, the time interval of the conventional high-voltage intensity change interval is focused, specifically, when the working time of the box transformer starts to enter the initial time of the conventional high-voltage intensity change interval in each time period of the second day, a pre-adjustment alarm is performed to remind a worker that the high-voltage intensity data is about to rise, so that the condition that the worker, especially a new worker controls the box transformer by mistake is reduced, for example, the box transformer stops working and the like.
The embodiment of the application also discloses a box transformer power monitoring system.
Referring to fig. 4, the box-type substation power monitoring system includes a data acquisition module 1, a first detection module 2, and a transmission stopping module 3, where the data acquisition module 1 is configured to acquire high-voltage intensity data input at a high-voltage side and low-voltage intensity data output at a low-voltage side at the same time period; the first detection module 2 is internally preset with a box-to-variable voltage-reducible threshold and an outputable voltage threshold and is used for detecting the magnitudes of the high-voltage intensity, the box-to-variable voltage-reducible threshold, the low-voltage intensity and the outputable voltage threshold; the transmission stopping module 3 is used for stopping the box transformer substation and transmitting high-voltage intensity data to the power generation terminal and transmitting low-voltage intensity data to the box transformer substation terminal when the high-voltage intensity is greater than the voltage-reducible threshold of the box transformer substation or the low-voltage intensity is greater than the voltage-outputtable threshold; and otherwise, when the high voltage intensity is smaller than the voltage threshold which can be reduced by the box transformer or the low voltage intensity is smaller than the voltage threshold which can be output, the box transformer is kept to work.
Further, when detecting the high-low voltage intensity variation trend in the same time period, the embodiment further includes an intensity trend detection module 4, a pre-alarm module 5, a recording module 6, a second detection module 7, a recording module 8, a pre-adjustment alarm module 9, a time acquisition module 10, and a time duration module 11; the intensity trend detection module 4 is used for detecting the intensity variation trend of high and low voltages from beginning to end in the same time period; the pre-alarm module 5 is preset with a prepared high voltage threshold and a prepared low voltage threshold, and is used for pre-alarming to the power generation terminal when the high voltage strength continuously rises and tends to the prepared high voltage threshold, and pre-alarming to the box control terminal when the low voltage strength continuously rises and tends to the prepared low voltage threshold.
The recording module 6 is used for recording the starting time point and the ending time point of the high voltage intensity rising trend when detecting the high and low voltage intensity variation trend in the same time period; the second detection module 7 is used for detecting the variation trend of the low voltage intensity output by the low voltage side corresponding to the high voltage intensity rising starting time point and the high voltage intensity rising ending time point; the recording module 8 is used for recording the low voltage intensity rising trend between the high voltage intensity rising starting time point and the high voltage intensity rising ending time point as a low voltage intensity rising prediction of the same time period; the pre-adjustment alarm module 9 is used for performing pre-adjustment alarm on the box transformer substation when the prediction times of low voltage intensity increase recorded between the high voltage intensity increase starting time point and the high voltage intensity increase ending time point reach X times, wherein X is more than or equal to 3; the time acquisition module 10 is configured to acquire an end time of detecting a change trend of the high-low voltage intensity in the same time period when the rising trend of the high-voltage intensity ends; the time duration module 11 is configured to, when the high voltage intensity rising trend ending time point exceeds the ending time of the time period, continue the detection of the high and low voltage intensity variation trend by the time period to a next time period adjacent to the time period.
Further, for the working time of the box transformer substation every day, the embodiment further includes a time interval division module 12, an interval registration module 13, and a third detection module 14; the time period separating module 12 is configured to divide the time of each day into a plurality of time periods for acquiring high voltage intensity data input by the high voltage side and low voltage intensity data output by the low voltage side; the interval registration module 13 is configured to obtain a start time point and an end time point of a corresponding high voltage intensity rising trend in each time period, and record the start time point and the end time point as a conventional high voltage intensity change interval; the third detection module 14 is configured to detect a high voltage intensity variation trend from a beginning time point to an end time point within a regular high voltage intensity variation interval; the preset alarm module 9 performs preset alarm when entering the conventional high voltage intensity change interval from the next day when the conventional high voltage intensity change interval of each time period in the day has a high voltage intensity rising trend.
The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Claims (6)
1. A box substation power monitoring method is characterized in that: the method comprises the following steps:
acquiring high voltage intensity data input by a high voltage side and low voltage intensity data output by a low voltage side in the same time period;
judging whether the high-voltage intensity data are larger than a preset box-type transformer-reducible voltage threshold value or not;
if yes, stopping the box transformer substation and transmitting the high-voltage intensity data to the power generation terminal;
if not, detecting whether the low-voltage intensity data is larger than a preset threshold value of the output voltage;
if so, stopping the box transformer substation and transmitting the low-voltage intensity data to the box control terminal;
if not, keeping the box transformer substation working;
when obtaining high low voltage intensity data in same time quantum, include:
detecting the variation trend of high and low voltage intensity data from beginning to end in the same time period;
when the high-voltage intensity data continuously rise and tend to prepare a high-voltage threshold value, pre-alarming is carried out on the power generation terminal;
when the low-voltage intensity data continuously rise and tend to prepare a low-voltage threshold value, pre-alarming is carried out on the box control terminal;
when detecting the high-low voltage intensity data change trend of the same time period, the method comprises the following steps:
recording the starting time point and the ending time point of the rising trend of the high-voltage intensity data;
detecting the variation trend of the low voltage intensity data output by the low voltage side corresponding to the rising start time point and the rising end time point of the high voltage intensity data;
recording the low voltage intensity data as the rising prediction of the low voltage intensity data in the same time period when the low voltage intensity data also shows a rising trend;
and pre-adjusting and alarming when the predicted times of the low voltage intensity data increase recorded from the voltage intensity increase starting time point to the voltage intensity increase ending time point of the time period reach X times, wherein X is more than or equal to 3.
2. The box transformer substation power monitoring method according to claim 1, characterized in that: when the ending time point of the rising trend of the high voltage intensity data is recorded, the method comprises the following steps:
acquiring the end time of detecting the change trend of the high-low voltage intensity data in the same time period;
when the recorded rising trend ending time point of the high-low voltage intensity data exceeds the ending time of the time period, the detection of the changing trend of the high-low voltage intensity data in the time period is continued to the next time period adjacent to the time period.
3. The box-type substation power monitoring method according to claim 2, characterized in that: and when the detection time period of the change trend of the high-low voltage intensity data is continued, the detected time period is prolonged to the range of the next time period corresponding to the rising trend ending time point of the high-low voltage intensity data, the time of the next time period is shortened at the same time, and the starting time point of the next time period is defined as the prolonged rising trend ending time of the high-low voltage intensity data.
4. The box-type substation power monitoring method according to claim 3, characterized in that: further comprising:
dividing the time of each day into a plurality of time periods for acquiring high voltage intensity data input by a high voltage side and low voltage intensity data output by a low voltage side;
acquiring a starting time point and an ending time point of the rising trend of the corresponding high-voltage intensity data in each time period, and recording as a conventional high-voltage intensity data change interval;
detecting the change trend of the high-voltage intensity data from the beginning to the end time point in the change interval of the conventional high-voltage intensity data;
when the high voltage intensity data increase trend appears in the conventional high voltage intensity data change interval of each time period in one day, pre-adjustment alarming is carried out when the conventional high voltage intensity data change interval begins to enter the conventional high voltage intensity data change interval in the next day.
5. The utility model provides a case power monitoring system which characterized in that: the method comprises the following steps:
the data acquisition module (1) is used for acquiring high voltage intensity data input by a high voltage side and low voltage intensity data output by a low voltage side in the same time period;
the first detection module (2) is preset with a box transformer reducible voltage threshold and an outputable voltage threshold and is used for detecting the magnitude of the high voltage intensity data, the box transformer reducible voltage threshold, the low voltage intensity data and the outputable voltage threshold;
the transmission stopping module (3) is used for stopping the box transformer substation from working and transmitting the high-voltage intensity data to the power generation terminal and transmitting the low-voltage intensity data to the box transformer substation terminal when the high-voltage intensity data is larger than the voltage threshold which can be reduced by the box transformer substation or the low-voltage intensity data is larger than the voltage threshold which can be output;
otherwise, when the high voltage intensity data is smaller than the voltage threshold value which can be reduced by the box transformer substation or the low voltage intensity data is smaller than the voltage threshold value which can be output, the box transformer substation is kept to work;
further comprising:
the intensity trend detection module (4) is used for detecting the change trend of the high-low voltage intensity data from the beginning to the end in the same time period;
the pre-alarm module (5) is preset with a prepared high-voltage threshold value and a prepared low-voltage threshold value and is used for pre-alarming the power generation terminal when the high-voltage intensity data continuously rises and tends to the prepared high-voltage threshold value, and pre-alarming the box control terminal when the low-voltage intensity data continuously rises and tends to the prepared low-voltage threshold value;
further comprising:
the recording module (6) is used for recording the starting time point and the ending time point of the rising trend of the high-voltage intensity data when the variation trend of the high-voltage intensity data and the low-voltage intensity data in the same time period is detected;
the second detection module (7) is used for detecting the variation trend of the low-voltage intensity data output by the low-voltage side corresponding to the rising starting time point and the rising ending time point of the high-voltage intensity data;
a recording module (8) for recording the rising trend of the low voltage intensity data between the starting time point and the ending time point of the rising of the high voltage intensity data as the rising prediction of the low voltage intensity data in the same time period;
the pre-adjustment alarm module (9) is used for carrying out pre-adjustment alarm on the box transformer substation when the rising prediction times of the low-voltage intensity data recorded between the rising start time point and the rising end time point of the high-voltage intensity data reach X times, wherein X is more than or equal to 3;
the time acquisition module (10) is used for acquiring the end time of the same time period of the change trend of the high-low voltage intensity data when the rising trend of the high-voltage intensity data is ended;
and the time duration module (11) is used for continuing the detection of the change trend of the high-low voltage intensity data in the period to the next period adjacent to the period when the rising trend ending time point of the high-voltage intensity data exceeds the ending time of the period.
6. The box-type substation power monitoring system according to claim 5, characterized in that: further comprising:
the time period separating module (12) is used for dividing the time of each day into a plurality of time periods for acquiring high voltage intensity data input by the high voltage side and low voltage intensity data output by the low voltage side;
the interval registration module (13) is used for acquiring a starting time point and an ending time point of the rising trend of the high-voltage intensity data corresponding to each time period and recording the starting time point and the ending time point as a conventional high-voltage intensity data change interval;
the third detection module (14) is used for detecting the change trend of the high-voltage intensity data from the beginning to the end time point in the conventional high-voltage intensity data change interval;
and the pre-adjustment alarm module (9) performs pre-adjustment alarm when the conventional high-voltage intensity data change interval of each time period in one day has a high-voltage intensity data rising trend, and enters the conventional high-voltage intensity data change interval from the next day.
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| US20100094479A1 (en) * | 2008-10-10 | 2010-04-15 | Keefe Robert A | System and Method for Providing Voltage Control in a Power Line Distribution Network |
| CA2869372C (en) * | 2013-10-31 | 2023-04-04 | Ilya Roytelman | Determining distribution system voltages from remote voltage alarm signals |
| CN205159805U (en) * | 2015-11-18 | 2016-04-13 | 文登蓝岛建筑工程有限公司 | Switch board and owe excessive pressure alarm device thereof |
| CN106169708B (en) * | 2016-07-14 | 2017-12-22 | 山东金人电气有限公司 | A kind of synthesis electric power system with remote monitoring |
| CN211209093U (en) * | 2019-10-29 | 2020-08-07 | 山东科技大学 | Intelligent prepackage type transformer substation |
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