CN113138360A - Hall current transformer measurement monitoring method, system, terminal and storage medium - Google Patents
Hall current transformer measurement monitoring method, system, terminal and storage medium Download PDFInfo
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Abstract
The application relates to a measurement monitoring method, a system, a terminal and a storage medium of a Hall current transformer, wherein the method comprises the steps of obtaining initial temperature data inside the transformer and temperature rising temperature data generated inside the transformer in the measurement process; calculating the temperature rise time required when the temperature rise data is continuously increased and reaches the preset threshold temperature data; comparing the temperature rise time with a preset temperature rise time threshold value in real time; and stopping the measurement work of the mutual inductor when the temperature rise time is less than the temperature rise time threshold, and keeping the measurement work of the mutual inductor when the temperature rise time is greater than the temperature rise time threshold. The Hall current transformer measuring method and device have the effect of improving the measuring accuracy of the Hall current transformer.
Description
Technical Field
The application relates to the field of Hall current transformers, in particular to a Hall current transformer measurement monitoring method, a Hall current transformer measurement monitoring system, a Hall current transformer measurement monitoring terminal and a storage medium.
Background
Hall current transformer is based on magnetic balance formula Hall principle for load current to internal motors such as machine of rising, vehicles monitors and measures, only utilize Hall current transformer to carry out current measurement to motors among the correlation technique, but less to the monitoring of Hall current sensor itself, and Hall current transformer is in the course of working that carries out current measurement, inside temperature can be crescent along with operating time's increase, easily make current transformer's measurement accuracy nature reduce when inside temperature reaches certain critical value or even damage, nevertheless because in the correlation technique less to the monitoring of self of Hall current sensor during operation, produce similar problem easily.
Therefore, with respect to the related art in the above, the inventor believes that there is a defect that the measurement accuracy of the hall current transformer is low.
Disclosure of Invention
In order to improve the accuracy of measurement of the Hall current transformer, the application provides a measurement monitoring method, a measurement monitoring system, a measurement monitoring terminal and a storage medium of the Hall current transformer.
In a first aspect, the present application provides a measurement and monitoring method for a hall current transformer, which adopts the following technical scheme:
a measurement monitoring method for a Hall current transformer comprises the following steps:
acquiring initial temperature data inside the mutual inductor and temperature rising temperature data generated inside the mutual inductor in a measuring process;
calculating the temperature rise time required when the temperature rise data is continuously increased and reaches the preset threshold temperature data;
comparing the temperature rise time with a preset temperature rise time threshold value in real time;
and stopping the measurement work of the mutual inductor when the temperature rise time is less than the temperature rise time threshold, and keeping the measurement work of the mutual inductor when the temperature rise time is greater than the temperature rise time threshold.
By adopting the technical scheme, when the current transformer performs measurement, the temperature inside the current transformer is monitored, the temperature data is acquired in real time along with the increase of the working time of the current transformer, the elapsed heating time is calculated until the temperature data inside the current transformer reaches the threshold temperature data, and once the heating time is less than the heating time threshold, the time taken for the current temperature inside the current transformer to reach the critical temperature is shorter, so that the condition that the inside of the current transformer is damaged is prompted, the current transformer needs to be replaced or overhauled in time, and the measurement accuracy of the current transformer is ensured; this kind is through monitoring the inside temperature data of current transformer during operation to in time change or overhaul current transformer, with the accuracy that improves current transformer measurement.
Optionally, a temperature rise upper limit time threshold greater than the temperature rise time threshold is preset, and in the process of calculating the temperature rise time, the method includes:
comparing the temperature rise time with the temperature rise upper limit time threshold;
and stopping monitoring when the temperature rising time reaches the temperature rising upper limit time threshold and the temperature rising temperature data is always smaller than the threshold temperature data.
By adopting the technical scheme, the temperature rise upper limit time threshold is set, so that the temperature rise time in the current transformer reaches the temperature rise upper limit time threshold, and the monitoring of the current transformer is stopped.
Optionally, in the process that the temperature rise time continues to increase after reaching the temperature rise time threshold and reaches the temperature rise upper limit time threshold, the method further includes:
acquiring first temperature data raised inside the mutual inductor when the temperature rise time reaches a temperature rise time threshold value, and calculating the temperature rise rate;
acquiring second temperature data of the temperature rise in the mutual inductor and calculating the temperature rise rate from the temperature rise time threshold to the temperature rise upper limit time threshold;
and when the rising rate corresponding to the first temperature data is smaller than the rising rate corresponding to the second temperature data, the monitoring of the mutual inductor is kept, otherwise, the monitoring is stopped.
By adopting the technical scheme, in the process that the temperature rise time reaches the temperature rise upper limit time threshold, the first temperature data and the second temperature data are acquired, so that the transformation of the temperature inside the current transformer before and after the temperature rise time threshold is monitored, and the change stability of the temperature inside the current transformer is monitored.
Optionally, when the mutual inductor is kept in measurement, the method further includes:
recording the working time of the mutual inductor after the working time reaches a temperature rise time threshold in real time, and recording the working time as the working retention time;
presetting a temperature recording time interval, and calculating the temperature data of the mutual inductor after the temperature recording time interval once after the working holding time begins to record;
and continuously acquiring the temperature data of the mutual inductor in the N temperature recording time intervals, and stopping the mutual inductor when the temperature data are in a rising state.
By adopting the technical scheme, when the current transformer keeps working, the temperature data of the transformer in a plurality of continuous temperature recording time intervals are obtained by setting the plurality of temperature recording time intervals, so that the state of the temperature data is judged, and the stability of the internal temperature change of the current transformer is monitored.
Optionally, in the step of continuously obtaining the temperature data of the mutual inductor in the N temperature recording time intervals, when there is a temperature recording time interval in which the temperature is decreased, the method further includes:
acquiring temperature data of two temperature recording time intervals before and after the temperature recording time interval of temperature reduction;
when the temperature data of the two temperature recording time intervals are the temperature rising time intervals, calculating the temperature rising rate;
and when the temperature rise rate in the next temperature recording time interval is greater than the temperature rise rate in the previous temperature recording time interval, stopping the transformer, otherwise, not stopping the transformer.
Through adopting above-mentioned technical scheme, the time interval that the temperature descends appears in N temperature record time interval in succession, and when this time interval's next time interval is greater than the previous one, then it is very fast to indicate the inside temperature variation of current transformer, need stop current transformer's work this moment in order to change or overhaul to guarantee current transformer measuring accuracy.
In a second aspect, the present application provides a hall current transformer measurement monitoring system, which adopts the following technical scheme:
a hall current transformer measurement monitoring system, comprising:
the temperature acquisition module is used for acquiring initial temperature data inside the mutual inductor and temperature rise temperature data generated inside the mutual inductor in the measurement process;
the first calculation module is used for calculating the temperature rise time required when the temperature rise data is continuously increased and reaches the preset threshold temperature data;
the first comparison module is used for comparing the temperature rise time with a preset temperature rise time threshold in real time, stopping the measurement work of the mutual inductor when the temperature rise time is smaller than the temperature rise time threshold, and keeping the measurement work of the mutual inductor when the temperature rise time is larger than the temperature rise time threshold.
Optionally, the method further includes:
the second comparison module is used for comparing the temperature-rising time with a preset temperature-rising upper limit time threshold value, and stopping monitoring when the temperature-rising time reaches the temperature-rising upper limit time threshold value and the temperature-rising temperature data is always smaller than the threshold temperature data, wherein the temperature-rising upper limit time threshold value is larger than the temperature-rising time threshold value;
the first statistical module is used for acquiring first temperature data raised inside the mutual inductor when the temperature rise time reaches a temperature rise time threshold value and calculating the temperature rise rate;
the second statistical module is used for acquiring second temperature data of the temperature rise in the mutual inductor and calculating the temperature rise rate, wherein the temperature rise time is increased from the temperature rise time threshold to the temperature rise upper limit time threshold;
and the monitoring module keeps monitoring the mutual inductor when the rising rate corresponding to the first temperature data is smaller than the rising rate corresponding to the second temperature data, otherwise, the monitoring is stopped.
Optionally, the method further includes:
the recording module is used for recording the working time of the mutual inductor after the working time reaches the temperature rise time threshold in real time and recording the working time as the working retention time;
the second calculation module is used for presetting a temperature recording time interval and calculating the temperature data of the mutual inductor after the temperature recording time interval passes every time after the work keeping time begins to record;
the stopping module is used for continuously acquiring the temperature data of the mutual inductor in the N temperature recording time intervals, and stopping the mutual inductor when the temperature data are all in a rising state;
the data acquisition module is used for acquiring temperature data of two temperature recording time intervals before and after the temperature recording time interval of temperature reduction;
the third calculation module is used for calculating the temperature rising rate when the temperature data of the front temperature recording time interval and the rear temperature recording time interval are both temperature rising time intervals;
and the stopping module stops the work of the mutual inductor when the temperature rising rate of the subsequent temperature recording time interval is greater than the temperature rising rate of the previous temperature recording time interval, otherwise, the mutual inductor does not stop.
In a third aspect, the present application provides an intelligent terminal, which adopts the following technical scheme:
an intelligent terminal comprises a memory and a processor, wherein the memory is stored with a computer program which can be loaded by the processor and can execute any one of the Hall current transformer measurement monitoring methods.
In a fourth aspect, the present application provides a computer-readable storage medium, which adopts the following technical solutions:
a computer readable storage medium storing a computer program that can be loaded by a processor and that can perform any of the above hall current transformer measurement monitoring methods.
In summary, the present application includes at least one of the following beneficial technical effects:
the internal temperature data of the current transformer during working are monitored, so that the current transformer can be replaced or maintained in time, and the accuracy of measurement of the current transformer is improved.
Drawings
Fig. 1 is a flowchart of a measurement monitoring method for a hall current transformer in an embodiment of the present application.
Fig. 2 is a flowchart illustrating sub-steps of step S200 in the embodiment of the present application.
Fig. 3 is a flowchart illustrating sub-steps of step S300 in the embodiment of the present application.
Fig. 4 is a flowchart illustrating sub-steps of step S330 in the embodiment of the present application.
Fig. 5 is a structural block diagram of a hall current transformer measurement monitoring system in the embodiment of the present application.
Description of reference numerals: 1. a temperature acquisition module; 2. a first calculation module; 3. a first comparison module; 4. a second comparison module; 5. a first statistical module; 6. a second statistical module; 7. a monitoring module; 8. a recording module; 9. a second calculation module; 10. a stop module; 11. a data acquisition module; 12. and a third calculation 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. 1-5 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 measurement monitoring method for a Hall current transformer.
Referring to fig. 1, the measurement monitoring method of the hall current transformer comprises the following steps:
step S100, obtaining initial temperature data inside the mutual inductor and temperature rising data generated inside the mutual inductor in the measuring process.
Specifically, the internal initial temperature of the current transformer is the internal temperature when the current transformer does not work, the internal temperature of the current transformer is zero at the moment, the internal temperature gradually rises in the current measurement process, the rising temperature data inside the current transformer is obtained at the moment, and the highest temperature data obtained from the rising temperature data is used as the temperature rising temperature data.
And step S200, calculating the temperature rise time required when the temperature rise data is continuously increased and reaches the preset threshold temperature data.
Specifically, the threshold temperature data is a critical temperature that can be borne by the inside of the current transformer, the measurement accuracy of the current transformer is reduced and even damaged by keeping the threshold temperature data for a long time, timing is started from the time when the current transformer works until the time when the temperature inside the current transformer rises to the threshold temperature data, and the timing is stopped, and a time difference is calculated to serve as the temperature rise time.
And step S300, comparing the temperature rise time with a preset temperature rise time threshold value in real time.
Specifically, the temperature rise time threshold is preferably a normal condition, the time taken for the internal temperature of the current transformer to reach the threshold temperature data is the time required, and after the temperature rise time is obtained, the temperature rise time is compared with the temperature rise time threshold; when the temperature rise time is less than the temperature rise time threshold, the current transformer is indicated to reach the critical temperature in a shorter time than that in a normal condition, at the moment, the condition that the inside of the current transformer is damaged is indicated, the measurement accuracy is reduced on the contrary when the current transformer continues to work, the measurement work of the current transformer needs to be stopped and subsequent replacement needs to be carried out, when the temperature rise time is greater than the temperature rise time threshold, the current transformer is indicated to be longer in the usable measurement time than that in the normal condition, and at the moment, the continuous measurement work of the current transformer can be kept.
Referring to fig. 2, further, in the present application, a temperature rise upper limit time threshold greater than the temperature rise time threshold is preset, and the method includes the following steps in the process of calculating the temperature rise time:
step S210, comparing the temperature rise time with the temperature rise upper limit time threshold value.
Specifically, the upper temperature-rise time threshold is preferably the longest time for monitoring the internal temperature of the current transformer, the temperature-rise time is compared with the upper temperature-rise time threshold, and the temperature-rise time is calculated when the current transformer starts to operate, so that as long as the current transformer operates all the time, the temperature-rise time is also always in the process of calculation, when the temperature-rise time reaches the upper temperature-rise time threshold, that is, the operating time of the current transformer reaches the longest time for monitoring the internal temperature of the current transformer, but the temperature-rise temperature data inside the current transformer is always less than the threshold temperature data, it is indicated that the current transformer can operate normally all the time, the quality of the current transformer is better, the subsequent measurement accuracy is higher, the monitoring of the current transformer can be stopped at this time, and the cost is reduced.
Further, in the process that the temperature rise time continues to increase after reaching the temperature rise time threshold and reaches the temperature rise upper limit time threshold, the method further comprises the following steps:
step S220, acquiring first temperature data raised inside the mutual inductor when the temperature rise time reaches a temperature rise time threshold value, and calculating the temperature rise rate.
Specifically, for a current transformer in which the temperature rise time reaches the upper temperature rise time threshold and the temperature rise temperature data is always smaller than the threshold temperature data, when the current transformer starts to operate and the temperature rise time reaches the temperature rise time threshold, first temperature data inside the current transformer, that is, the highest temperature data inside the current transformer, is obtained, and then the temperature rise speed inside the current transformer is calculated by dividing the first temperature data value by the temperature rise time threshold.
And step S230, acquiring second temperature data of the temperature rise in the mutual inductor and calculating the temperature rise rate, wherein the temperature rise time is increased from the temperature rise time threshold to the temperature rise upper limit time threshold.
Specifically, when the temperature rise time of the current transformer continues to increase and reaches the temperature rise upper limit time threshold, second temperature data inside the current transformer are obtained, where the second temperature data is specifically a difference value obtained by subtracting the first temperature data from the highest temperature inside the current transformer when the temperature rise time reaches the temperature rise upper limit time threshold, and then the temperature rise speed is calculated by dividing the second temperature data value by the difference value between the temperature rise upper limit time threshold and the temperature rise time threshold.
Step S240, when the rising rate corresponding to the first temperature data is smaller than the rising rate corresponding to the second temperature data, the monitoring of the transformer is maintained, otherwise, the monitoring is stopped.
Specifically, when the internal temperature rise speed of the current transformer corresponding to the first temperature data is smaller than the internal temperature rise speed of the current transformer corresponding to the second temperature data, it indicates that the internal temperature rise speed of the current transformer is increased after the temperature rise time reaches the temperature rise time threshold, and a problem occurs in stability.
Referring to fig. 3, in addition, for the current transformer which keeps the measurement work when the temperature rise time is greater than the temperature rise time threshold, the present application further includes the following steps:
and step S310, recording the working time of the mutual inductor after the working time reaches the temperature rise time threshold in real time, and recording the working time as the working retention time.
Specifically, after the operating time of the current transformer reaches the temperature rise time threshold, the current transformer continues to operate, and at this time, the time after the temperature rise time threshold is defined as the operation holding time, for example, the temperature rise time threshold is 10 hours, and the 11 th hour, the 12 th hour and the like after 10 hours are collectively referred to as the operation holding time.
Step S320, presetting a temperature recording time interval, and calculating the temperature data of the transformer every time the temperature recording time interval passes after the work holding time starts to be recorded.
Specifically, the temperature recording time interval is preferably 30 minutes, and after the current transformer enters the working retention time stage, temperature data inside the current transformer is acquired every 30 minutes, where the acquired temperature data is specifically the temperature inside the current transformer at the time point when the 30 minutes is reached.
And S330, continuously acquiring temperature data of the mutual inductor in N temperature recording time intervals, and stopping the mutual inductor when the temperature data are in a rising state.
Specifically, after the current transformer enters a working retention time stage, the temperature data inside the current transformer at the continuous N temperature recording time intervals can be directly acquired, or the current transformer can work for several temperature recording time intervals first and then acquire the temperature data inside the current transformer at the continuous N temperature recording time intervals.
Taking directly obtaining the temperature data inside the current transformer with N consecutive temperature recording time intervals as an example, the size of the temperature data obtained when the temperature data inside the current transformer at the first temperature recording time interval is judged to be the temperature data obtained at the time point of 30 minutes and the size of the temperature data obtained when the current transformer reaches the temperature rise time threshold value, when the temperature data obtained at the time point of 30 minutes is greater than the temperature data obtained when the temperature data obtained at the time point of temperature rise time threshold value, the temperature data is judged to be in the rising state, the size of the temperature data obtained at the time point of second 30 minutes and the temperature data obtained at the time point of first 30 minutes is judged to be the temperature data obtained at the time point of second 30 minutes, when the temperature data obtained at the time point of second 30 minutes is greater than the temperature data obtained at the time point of first 30 minutes, and judging that the temperature data is in a rising state, and analogizing to the above, when the temperature data of the current transformer in the N temperature recording time intervals are continuously obtained and are in the rising state, indicating that the temperature of the current transformer is continuously raised and is dangerous, and stopping the work of the current transformer in time is needed.
Referring to fig. 4, further, when there is a temperature recording time interval in which the temperature is decreased in the temperature data of the mutual inductor obtained in the N temperature recording time intervals continuously, the method includes the following steps:
in step S331, temperature data of two temperature recording time intervals before and after the temperature recording time interval of the temperature drop is acquired.
Specifically, if the temperature data acquired at the 30 th minute time point in a certain time interval of the N temperature recording time intervals is smaller than the temperature data acquired at the previous 30 th minute time point, the temperature data of the time interval is in a descending state, and at this time, the temperature data of two temperature recording time intervals before and after the time interval are acquired; for example, a temperature data falling state occurs in the second time interval of the N temperature recording time intervals, and the temperature state conditions of the first temperature recording time interval and the third temperature recording time interval are acquired.
In step S332, when the temperature data of the two previous and next temperature recording time intervals are both the temperature rise time intervals, the temperature rise rate is calculated.
Specifically, when the temperature states of the first temperature recording time interval and the third temperature recording time interval are both in an increasing state, the temperature increasing speed in the first temperature recording time interval and the third temperature recording time interval is calculated, and the third temperature recording time interval is taken as an example, and the specific calculation mode is to acquire temperature data at the 30 th minute time point of the third temperature recording time interval and the second temperature recording time interval, calculate the difference value of the temperature data, and divide the difference value by 30 minutes.
And step S333, when the temperature rising rate of the next temperature recording time interval is greater than the temperature rising rate of the previous temperature recording time interval, stopping the transformer, otherwise, not stopping the transformer.
Specifically, when the temperature rising speed of the third temperature recording time interval is greater than the temperature rising speed of the first temperature recording time interval, it indicates that the temperature inside the current transformer is rapidly rising after falling, and at this time, the operation of the current transformer needs to be stopped, so that the damage of the current transformer is reduced and the detection accuracy of the current transformer is affected, whereas when the temperature rising speed of the third temperature recording time interval is less than the temperature rising speed of the first temperature recording time interval, the continuous operation of the current transformer is maintained.
The embodiment of the application also discloses a measurement and monitoring system of the Hall current transformer.
Referring to fig. 5, the hall current transformer measurement monitoring system includes:
the temperature acquisition module 1 is used for acquiring initial temperature data inside the mutual inductor and temperature rise temperature data generated inside the mutual inductor in the measurement process;
the first calculation module 2 is used for calculating the temperature rise time required when the temperature rise data is continuously increased and reaches the preset threshold temperature data;
the first comparison module 3 is used for comparing the temperature rise time with a preset temperature rise time threshold in real time, stopping the measurement work of the mutual inductor when the temperature rise time is smaller than the temperature rise time threshold, and keeping the measurement work of the mutual inductor when the temperature rise time is larger than the temperature rise time threshold.
The second comparison module 4 is used for comparing the temperature rise time with a preset temperature rise upper limit time threshold value, and stopping monitoring when the temperature rise time reaches the temperature rise upper limit time threshold value and the temperature rise temperature data is always smaller than the threshold temperature data, wherein the temperature rise upper limit time threshold value is larger than the temperature rise time threshold value;
the first statistical module 5 is used for acquiring first temperature data raised inside the mutual inductor when the temperature rise time reaches a temperature rise time threshold value and calculating the temperature rise rate;
the second statistical module 6 is used for acquiring second temperature data of the temperature rise time from the temperature rise time threshold to the temperature rise upper limit time threshold and calculating the temperature rise rate;
and the monitoring module 7 keeps monitoring the mutual inductor when the rising rate corresponding to the first temperature data is smaller than the rising rate corresponding to the second temperature data, otherwise, stops monitoring.
The recording module 8 is used for recording the working time of the mutual inductor after the working time reaches the temperature rise time threshold in real time and recording the working time as the working retention time;
the second calculating module 9 is used for presetting a temperature recording time interval and calculating the temperature data of the mutual inductor after the temperature recording time interval passes every time after the work keeping time begins to record;
the stopping module 10 is used for continuously acquiring temperature data of the mutual inductor in N temperature recording time intervals, and stopping the mutual inductor when the temperature data are all in a rising state;
the data acquisition module 11 is configured to acquire temperature data of two temperature recording time intervals before and after a temperature recording time interval of temperature drop;
the third calculating module 12 is configured to calculate a temperature rising rate when the temperature data of the preceding and following two temperature recording time intervals are both temperature rising time intervals;
when the temperature rise rate of the subsequent temperature recording time interval is greater than the temperature rise rate of the previous temperature recording time interval, the stopping module 10 stops the transformer, otherwise, the transformer does not stop.
The embodiment of the application also discloses an intelligent terminal.
The intelligent terminal comprises a memory and a processor, wherein the memory is stored with a computer program which can be loaded by the processor and can execute the Hall current transformer measurement monitoring method.
The embodiment of the application also discloses a computer readable storage medium.
Specifically, the computer readable storage medium stores a computer program capable of being loaded by a processor and executing the hall current transformer measurement monitoring method, and the computer readable storage medium includes, for example: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.
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 (10)
1. A measurement monitoring method of a Hall current transformer is characterized by comprising the following steps: the method comprises the following steps:
acquiring initial temperature data inside the mutual inductor and temperature rising temperature data generated inside the mutual inductor in a measuring process;
calculating the temperature rise time required when the temperature rise data is continuously increased and reaches the preset threshold temperature data;
comparing the temperature rise time with a preset temperature rise time threshold value in real time;
and stopping the measurement work of the mutual inductor when the temperature rise time is less than the temperature rise time threshold, and keeping the measurement work of the mutual inductor when the temperature rise time is greater than the temperature rise time threshold.
2. The hall current transformer measurement monitoring method according to claim 1, characterized in that: presetting a temperature rise upper limit time threshold which is larger than a temperature rise time threshold, wherein the step of calculating the temperature rise time comprises the following steps:
comparing the temperature rise time with the temperature rise upper limit time threshold;
and stopping monitoring when the temperature rising time reaches the temperature rising upper limit time threshold and the temperature rising temperature data is always smaller than the threshold temperature data.
3. The hall current transformer measurement monitoring method according to claim 2, characterized in that: in the process that the temperature rise time continues to increase after reaching the temperature rise time threshold and reaches the temperature rise upper limit time threshold, the method further comprises the following steps:
acquiring first temperature data raised inside the mutual inductor when the temperature rise time reaches a temperature rise time threshold value, and calculating the temperature rise rate;
acquiring second temperature data of the temperature rise in the mutual inductor and calculating the temperature rise rate from the temperature rise time threshold to the temperature rise upper limit time threshold;
and when the rising rate corresponding to the first temperature data is smaller than the rising rate corresponding to the second temperature data, the monitoring of the mutual inductor is kept, otherwise, the monitoring is stopped.
4. The hall current transformer measurement monitoring method according to claim 1, characterized in that: when keeping mutual-inductor measurement during operation, still include:
recording the working time of the mutual inductor after the working time reaches a temperature rise time threshold in real time, and recording the working time as the working retention time;
presetting a temperature recording time interval, and calculating the temperature data of the mutual inductor after the temperature recording time interval once after the working holding time begins to record;
and continuously acquiring the temperature data of the mutual inductor in the N temperature recording time intervals, and stopping the mutual inductor when the temperature data are in a rising state.
5. The Hall current transformer measurement monitoring method according to claim 4, wherein: in the temperature data of mutual-inductor in N temperature record time interval of continuous acquisition, when there is the temperature record time interval of temperature decline, still include:
acquiring temperature data of two temperature recording time intervals before and after the temperature recording time interval of temperature reduction;
when the temperature data of the two temperature recording time intervals are the temperature rising time intervals, calculating the temperature rising rate;
and when the temperature rise rate in the next temperature recording time interval is greater than the temperature rise rate in the previous temperature recording time interval, stopping the transformer, otherwise, not stopping the transformer.
6. The utility model provides a hall current transformer measurement monitoring system which characterized in that: the method comprises the following steps:
the temperature acquisition module (1) is used for acquiring initial temperature data inside the mutual inductor and temperature rise temperature data generated inside the mutual inductor in the measurement process;
the first calculation module (2) is used for calculating the temperature rise time required when the temperature rise data are continuously increased and reach the preset threshold temperature data;
the first comparison module (3) is used for comparing the temperature rise time with a preset temperature rise time threshold value in real time, stopping the measurement work of the mutual inductor when the temperature rise time is smaller than the temperature rise time threshold value, and keeping the measurement work of the mutual inductor when the temperature rise time is larger than the temperature rise time threshold value.
7. The hall current transformer measurement monitoring system of claim 6, wherein: further comprising:
the second comparison module (4) is used for comparing the temperature rise time with a preset temperature rise upper limit time threshold value, and stopping monitoring when the temperature rise time reaches the temperature rise upper limit time threshold value and the temperature rise temperature data is always smaller than the threshold temperature data, wherein the temperature rise upper limit time threshold value is larger than the temperature rise time threshold value;
the first statistical module (5) is used for acquiring first temperature data raised inside the mutual inductor when the temperature rise time reaches a temperature rise time threshold value and calculating the temperature rise rate;
the second statistical module (6) is used for acquiring second temperature data of the temperature rise time from the temperature rise time threshold to the temperature rise upper limit time threshold and calculating the temperature rise rate;
and the monitoring module (7) keeps monitoring the mutual inductor when the rising rate corresponding to the first temperature data is smaller than the rising rate corresponding to the second temperature data, otherwise, stops monitoring.
8. The hall current transformer measurement monitoring system of claim 6, wherein: further comprising:
the recording module (8) is used for recording the working time of the mutual inductor after the working time reaches the temperature rise time threshold in real time and recording the working time as the working retention time;
the second calculation module (9) is used for presetting a temperature recording time interval and calculating the temperature data of the mutual inductor after the temperature recording time interval passes every time after the work keeping time begins to record;
the stopping module (10) is used for continuously acquiring the temperature data of the mutual inductor in N temperature recording time intervals, and stopping the mutual inductor when the temperature data are all in a rising state;
the data acquisition module (11) is used for acquiring temperature data of two temperature recording time intervals before and after the temperature recording time interval of temperature reduction;
the third calculating module (12) is used for calculating the temperature rising rate when the temperature data of the front temperature recording time interval and the rear temperature recording time interval are both temperature rising time intervals;
and the stopping module (10) stops the work of the mutual inductor when the temperature rising rate of the next temperature recording time interval is greater than the temperature rising rate of the previous temperature recording time interval, otherwise, the mutual inductor does not stop.
9. The utility model provides an intelligent terminal which characterized in that: comprising a memory and a processor, said memory having stored thereon a computer program which can be loaded by the processor and which performs the method of any of claims 1 to 5.
10. A computer-readable storage medium characterized by: further comprising: a computer program which can be loaded by a processor and which executes a method according to any one of claims 1 to 5.
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