CN117725388B - Adjusting system and method aiming at ground fault information - Google Patents
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Abstract
A regulation system and method for ground fault information belongs to the ground fault technical field, which comprises obtaining a plurality of output component values through ground fault identification index decomposition treatment, starting to select the output component value one of all clutter values in the whole output component value one, cleaning the output component value one of all clutter values in the whole output component value one to obtain a plurality of output component values two, obtaining the clutter value component in the output component value two and the clutter value component not having obvious distinguishing rule, finally integrating the whole output component values three into the ground fault identification index three through actively setting the Fourier critical value of a Fourier filter according to the clutter content of each output component value in the ground fault identification index, so as to more accurately clean the clutter in the ground fault identification index and improve the anti-interference function.
Description
Technical Field
The invention belongs to the technical field of ground faults, and particularly relates to a system and a method for adjusting ground fault information.
Background
Ground faults refer to a short circuit between a live conductor, such as a phase line, a neutral line, etc., and ground, as shown. "ground" as used herein refers to the exposed conductive portions of the electrical device that are connected to ground and the conductive portions outside the device.
In terms of identifying the ground fault, the prior art scheme, such as the patent application number CN202110098363.3, and the patent name defined as "a power distribution network line adaptive reclosing method and a storage medium", is often used to perform the acquisition of the ground fault information, specifically, the identifying terminal receives the voltage value and the current value of the in-out line in the power distribution network system, and identifies whether the in-out line has a single-phase ground fault according to the voltage value and the current value, so as to acquire the ground fault information.
On the other hand, the voltage value and the current value of the incoming and outgoing line acquired by the identification terminal are used for identifying the ground fault, the voltage value and the current value of the incoming and outgoing line are ground fault identification indexes for identifying the ground fault, the mode that the identification terminal acquires the voltage value and the current value of the incoming and outgoing line is often transmitted in a wireless mode, thus clutter interference can be received in the transmission period, the ground fault identification indexes acquired by the identification terminal under clutter interference can form adverse effects on the acquired ground fault information, the anti-interference treatment is carried out on the ground fault identification indexes by adopting a clutter cleaning mode aiming at clutter interference at present, and when the anti-interference is carried out by adopting a clutter cleaning mode, the clutter cleaning is always carried out on all the ground fault identification indexes synchronously, however, because all the ground fault identification indexes are formed by accumulation of output components of different types, clutter in a plurality of types of output component values are not easy to be cleaned effectively by adopting a filter, the clutter effect of output component values of different types are not carried out, the clutter effect of output component values is not low, the clutter effect of some output component values is not high, the clutter effect of the clutter value is not dependent on the clutter effect of the clutter value of the output component values is not high, and the clutter effect of the output component value is not optimal to the noise component value is not optimal because the noise component value is not carried out.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a regulation system and a regulation method aiming at ground fault information, which are used for obtaining a plurality of output component values through ground fault identification index decomposition treatment, starting to select the output component value one of all clutter values in the all output component values one, so as to clean the output component one of all clutter values in the all output component values one to obtain a plurality of output component values two, analyzing the difference between each subcomponent in each output component value two and other subcomponents according to a rule that the clutter value component in each output component value is obviously different from the clutter value component in each clutter value, obtaining the clutter quantity of each output component value two, accurately cleaning the clutter value component of each output component value two through the Fourier critical value of an active setting Fourier filter, obtaining the output component value three without clutter interference, and integrating the all output component three to obtain the ground fault identification index three.
The invention adopts the following technical scheme.
A method of regulating for ground fault information, comprising:
the method comprises the steps that a terminal is considered to collect a voltage value and a current value of an in-out line in a power distribution network system in a wireless mode, clutter cleaning is carried out on the voltage value and the current value, whether the in-out line has a single-phase earth fault or not is considered according to the voltage value and the current value after clutter cleaning, so that ground fault information is obtained, and the collected voltage value and current value of the in-out line in the power distribution network system are ground fault identification indexes;
A method of performing clutter cleaning on voltage values and current values, comprising:
S1, collecting an earth fault identification index;
S2, performing component decomposition treatment on the ground fault identification index to obtain a plurality of first output component values, calculating global fluctuation amounts of the first output component values, obtaining a distinguishing amount of each pair of first output component values according to the global fluctuation amounts of the first output component values, and obtaining a plurality of second output component values according to the distinguishing amount of each pair of first output component values;
S3, performing cutting treatment on each output component value II to obtain a plurality of subgroups of each output component value II, calculating a reference quantity of each subgroup, obtaining a reference group of each output component value II according to the reference quantity, and obtaining a noise quantity of each output component value II according to the distinguishing condition of each subgroup and the reference group in the output component value II;
S4, obtaining a Fourier critical value of each output component value II according to the clutter quantity of each output component value II, performing clutter cleaning treatment on each output component value II according to the Fourier critical value of each output component value II to obtain an output component value III, and integrating the total output component values III to obtain a ground fault identification index III.
Preferably, in S2, the method InfoMax is applied to perform the decomposition treatment on the ground fault identification indicator to obtain a plurality of output component values of one of the ground fault identification indicator.
Preferably, in S2, the operation equation for obtaining the global fluctuation amount of one output component value is:
，
in the equation of the present invention, Represents the/>Global fluctuation amount of one output component value,/>Represents the/>Average number of values of all elements in one output component value,/>Represents the/>The output component value is one inner first/>Numerical value of individual element,/>Representing the number of elements contained in each output component value one; /(I)Represents the/>The output component value is one inner first/>Numerical values of the individual elements.
Preferably, S2 further comprises: the peak Gu Yuansu of the whole of the output component value one is obtained, and the discrimination of each pair of the output component value one is obtained based on the discrimination status of the peak-valley element of the output component value one and the other output component value one and the fluctuation amount discrimination status.
Preferably, the equation for taking the discrimination amount of one for each pair of output component values is:
，
in the equation of the present invention, Represents the/>Global fluctuation amount of one output component value,/>Represents the/>Global fluctuation amount of one output component value,/>Represents the/>The number of peak-valley elements contained in one output component value,/>Represents the/>The number of peak-valley elements contained in one output component value,/>Represents the/>The output component value is one inner first/>Peak valley element and second/>Number of elements between peak and valley elements,/>Represents the/>The output component value is one inner first/>Peak valley element and second/>Number of elements between the individual peak-valley elements; /(I)Represents the/>Output component values one and/>The number of outputs is the amount of discrimination of the component value one.
Preferably, S2 further comprises: obtaining a pair of output component values I corresponding to the highest amount of the differential component values, defining the pair of output component values I as reference output component values I, calculating to obtain the average value of the differential amounts of each reference output component value I and the other overall output component values I, and obtaining the overall differential value of each reference output component value I; the corresponding reference output component value of the highest amount of the total zone quantity in the pair of reference output component values is used as a clutter value; the clutter values are cleaned up in the whole output component value I, and the residual output component value I is defined as an output component value II.
Preferably, S3 comprises: for the arbitrary first output component value II, obtaining the whole valley bottom elements of the output component value II, and cutting the output component value II into a plurality of subgroups by using each valley bottom element as a cutting position, wherein each subgroup is cut to contain the valley bottom elements at two ends;
Then, the reference quantity of each subgroup is obtained by the following steps:
Taking the quantity obtained by subtracting the value of the last element from each element in each subgroup of each output component value II as the first derivative of each element in each subgroup of each output component value II, and taking the quantity obtained by subtracting the value of the next element from each element in each subgroup of each output component value II as the second derivative of each element in each subgroup of each output component value II; the operation equation for obtaining the reference quantity of each subgroup according to the first derivative and the second derivative of each element in each subgroup of each output component value II is as follows:
，
in the equation of the present invention, Represents the/>Second internal second/>, of the output component valuesNumber of elements within subgroup,/>Represents the/>Second internal second/>, of the output component valuesNumber of elements within subgroup,/>Represents the/>Number of subgroups outputting component values two,/>Represents the/>Output component value of twoFirst/>, of subgroupDerivative of individual element one,/>Represents the/>Output component value of twoFirst/>, of subgroupDerivative of individual element two,/>Represents the/>Output component value of twoNumber of elements within subgroup,/>Is Euler number,/>Represents the/>Output component value of twoReference amounts of subgroups.
Preferably, S3 further comprises: taking the subgroup with the highest reference quantity in the whole subgroups with the second output component values as the reference group with the second output component values;
Then, chebyshev norms of each subgroup and reference group in each output component value II are calculated, and the clutter quantity of each output component value II is obtained according to the Chebyshev norms of each subgroup and reference group, wherein the calculation equation is as follows:
，
in the equation of the present invention, Represents the/>Output component value of twoChebyshev norms for the subgroups and reference groups,Represents the/>Number of subgroups outputting component values two,/>Represents the pair/>, via the Z-Score methodPerform normalization treatment,/>Represents the/>And outputs a noise amount of component two.
Preferably, S4 comprises:
The operation equation for obtaining the fourier critical value of each output component value two according to the clutter quantity of each output component value two is:
，
in the equation of the present invention, Represents the/>Amount of mixed wave of output component value two,/>Parameter representing preset Fourier critical value,/>Represents the/>Fourier critical values of two output component values;
Applying the Fourier threshold is Fourier filter pair of/>Performing clean clutter treatment to obtain the second/>, of the second output component valueObtaining each output component value three by analogy to obtain each output component value two;
And then, collecting the total output component values three to obtain a ground fault identification index three, wherein the ground fault identification index three is the ground fault identification index after clutter cleaning.
A conditioning system for ground fault information, comprising:
A terminal is identified;
The identification terminal is used for receiving a voltage value and a current value of an in-out line in the power distribution network system in a wireless mode, performing clutter cleaning on the voltage value and the current value, and identifying whether the in-out line has a single-phase earth fault or not according to the voltage value and the current value after clutter cleaning so as to acquire the information of the earth fault;
The module running on the identification terminal comprises:
a receiving module for receiving an earth fault identification index;
a decomposition module for performing component decomposition treatment on the ground fault identification index to obtain a plurality of first output component values, calculating global fluctuation amounts of the first output component values, obtaining a discrimination amount of each pair of first output component values according to the global fluctuation amounts of the first output component values, and obtaining a plurality of second output component values according to the discrimination amount of each pair of first output component values;
A cutting module for performing a cutting treatment on each output component value two to obtain a plurality of subgroups of each output component value two, calculating a reference amount of each subgroup, obtaining a reference group of each output component value two based on the reference amount, and obtaining a noise amount of each output component value two based on a distinguishing condition of each subgroup and the reference group in the output component value two;
And the cleaning module is used for obtaining the Fourier critical value of each output component value II according to the clutter quantity of each output component value II, performing cleaning clutter treatment on each output component value II according to the Fourier critical value of each output component value II to obtain an output component value III, and integrating the total output component values III to obtain a ground fault identification index III.
The invention has the beneficial function that compared with the prior art, the invention obtains a plurality of output component values I through the ground fault identification index decomposition treatment, because the clutter value and the non-clutter value have great difference, the invention responds to the situation that each output component value I is the clutter value by analyzing the distinguishing quantity of each output component value I and the other output component value I, and the output component value I which is totally attributed to the clutter value is initially selected in the total output component value I, so that the output component value I which is totally attributed to the clutter value is cleaned out in the total output component value I to obtain a plurality of output component values II, and the output component value II even if the total non-clutter value is not the clutter value, however, each output component value II is subjected to the action of the clutter value, namely each output component value II contains the clutter value component and the clutter value quantity contained in each output component value II is different, thus, according to the rule that the clutter value component and the non-clutter value component in the output component value II have obvious distinction, the situation that the output component value II is affected by the clutter value is reflected by resolving the distinction between the output component value II and the other subgroup, the clutter value of the output component value II is obtained, the clutter value component of the output component value II is correctly cleaned, the Fourier critical value of the output component value II is correspondingly set according to the clutter value of the output component value II, the clutter value component of the output component value II is correctly cleaned through the Fourier critical value of the active set Fourier filter to obtain the output component value III without clutter interference, the total output component value III is integrated to obtain the ground fault identification index III, and the anti-interference method of the constant Fourier critical value is set in comparison with the current subjective, the invention can actively change the Fourier critical value corresponding to each component according to the clutter content of each output component value in the ground fault identification index, thereby more accurately clearing the clutter in the ground fault identification index and improving the anti-interference function.
Drawings
FIG. 1 is a schematic block diagram of a portion of a regulation system for ground fault information according to the present invention;
Fig. 2 is a partial flow chart of the method of adjusting for ground fault information described in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be clearly and completely expressed with reference to the drawings in the embodiments of the present application. The embodiments of the application that are presented are only some of the embodiments of the application and not all of the embodiments. Based on the spirit of the present application, it is within the scope of the present application to have additional embodiments available to one of ordinary skill without the benefit of the present application.
As shown in fig. 2, a method for adjusting ground fault information according to the present invention includes:
The method comprises the steps that a terminal is considered to collect a voltage value and a current value of an in-out line in a power distribution network system in a wireless mode, clutter cleaning is carried out on the voltage value and the current value, whether the in-out line has a single-phase earth fault or not is considered according to the voltage value and the current value after clutter cleaning, so that ground fault information is obtained, and the collected voltage value and current value of the in-out line in the power distribution network system are ground fault identification indexes; the architecture for recognizing the terminal to collect the voltage value and the current value of the in-out line in the power distribution network system in a wireless mode can be as follows: the voltage sensor and the current sensor are arranged on the in-out line in the power distribution network system, the 4G module, the voltage sensor and the current sensor are all connected with the controller, the controller is in communication connection with the identification terminal in the 4G network through the 4G module, and therefore the voltage value and the current value which are transmitted by the voltage sensor and the current sensor and are respectively sampled by the controller in a power distribution network system can be transmitted to the identification terminal in the 4G network through the 4G module.
A method of performing clutter cleaning on voltage values and current values, comprising:
S1, collecting an earth fault identification index;
since the wireless receiving of the ground fault identification indicator often causes clutter interference, the ground fault identification indicator received by the receiver contains clutter values, which are detrimental to the ground fault information identification performance of the ground fault identification indicator, so that anti-interference treatment is performed on the ground fault identification indicator received by the identification terminal.
S2, performing component decomposition treatment on the ground fault identification index to obtain a plurality of first output component values, calculating global fluctuation amounts of the first output component values, obtaining a distinguishing amount of each pair of first output component values according to the global fluctuation amounts of the first output component values, and obtaining a plurality of second output component values according to the distinguishing amount of each pair of first output component values;
In a preferred but non-limiting embodiment of the present invention, since the ground fault identification indicator includes a global value formed by a plurality of index values, performing analysis according to the global value does not easily obtain a correct clutter value component, so that a decomposition treatment is performed on the ground fault identification indicator to obtain a plurality of output component values one; because the ground fault identification indexes received by the identification terminal through the wireless mode have the similarity, the clutter values and the ground fault identification indexes received by the identification terminal through the wireless mode have the low difference, the difference between the output component values I and the other output component values I is analyzed to obtain clutter values, and the clutter values in the output component values I are cleaned to obtain output component values II.
In S2, the method InfoMax is applied to perform the decomposition treatment on the ground fault identification index to obtain a plurality of output component values of one of the ground fault identification index. The first output component values of the ground fault identification index obtained by performing the decomposition treatment on the ground fault identification index by using the InfoMax method are arranged in the order of the outputs.
To confirm the degree of distinction between the respective output component values and the other output component values, the degree of distinction between the respective output component values and the other output component values is characterized based on the attribute of the respective output component values, where the fluctuation condition of the respective output component values may well characterize the attribute of the respective output component values, so that the global fluctuation amount of the respective output component values is calculated first.
In a preferred but non-limiting embodiment of the present invention, in S2, the operation equation for obtaining the global fluctuation amount of one output component value is:
，
in the equation of the present invention, Represents the/>Global fluctuation of one output component value is calculated by the/>For/>Representation of the relief execution of the output component value one,/>Represents the/>Average number of values of all elements in one output component value,/>Represents the/>The output component value is one inner first/>Numerical value of individual element,/>Representing the number of elements contained in each output component value one via/>Reaction of the first/>The dispersion of the total element values in the output component value one,Higher amounts of (a) means thatThe higher the amount of the output component value one is from the midpoint, so the/>The higher the fluctuation amount of one output component value is, the greater the fluctuation amount isFailure to respond to numerical discrimination conditions between adjacent elements; /(I)Represents the/>The output component value is one inner first/>The values of the individual elements viaReaction No./>The numerical distinction between adjacent elements in the output component value one,Higher amounts of (a) means thatThe higher the degree of numerical distinction between adjacent elements within an output component value.
In a preferred but non-limiting embodiment of the invention, S2 further comprises: the peak Gu Yuansu of the whole of the output component value one (the peak valley element is the element whose value of the previous element and the next element in the output component value one is higher or lower than that of the element) is obtained, and the discrimination of each pair of the output component values one is obtained according to the discrimination condition and the fluctuation amount discrimination condition of the peak valley element of the output component value one and the other output component value one.
In a preferred but non-limiting embodiment of the invention, the equation to obtain the discrimination of one for each pair of output components is:
，
in the equation of the present invention, Represents the/>Global fluctuation amount of one output component value,/>Represents the/>Global fluctuation amount of one output component value,/>Reaction of the first/>Output component values one and/>Fluctuation discrimination status between output component values one,/>Represents the/>The number of peak-valley elements contained in one output component value,/>Can react to the first/>Fluctuation of one output component value,/>Higher means the/>The higher the amount of fluctuation of one output component value is,/>Represents the firstThe number of peak-valley elements contained in one output component value,/>Reaction of the first/>Output component values one and/>Fluctuation discrimination between output component values one,/>Represents the/>The output component value is one inner first/>Peak valley element and second/>Number of elements between peak and valley elements, and/>Output of component value onePeak valley element and the firstThe element between the peak-valley elements contains the first/>Peak valley element and No. >Peak-valley elements viaReaction of the first/>The output component value is an inner fluctuation coverage amount status,/>Higher means the/>The more the number of the inner fluctuation coverage of each output component value is/>Represents the/>The output component value is onePeak valley element and second/>Number of elements between the individual peak-valley elements; via/>Reaction of the first/>The output component value-internal fluctuation coverage status is determined by/>Reaction No./>Output component values one and/>Fluctuation coverage difference status of output component value one,/>Represents the/>Output component values one and/>The number of outputs is the amount of discrimination of the component value one.
Thus, the differential amounts of each pair of output component values are obtained.
The clutter value and the ground fault identification index received by the identification terminal through the wireless mode have no small difference, so the clutter value is obtained through the difference condition between each output component value one and the other output component values, and then the clutter value is cleaned in the whole output component value one to obtain the output component value two.
In a preferred but non-limiting embodiment of the invention, S2 further comprises: obtaining a pair of output component values I corresponding to the highest amount of the differential component values, defining the pair of output component values I as reference output component values I, calculating to obtain the average value of the differential amounts of each reference output component value I and the other overall output component values I, and obtaining the overall differential value of each reference output component value I; the corresponding reference output component value of the highest amount of the total zone quantity in the pair of reference output component values is used as a clutter value; the clutter values are cleaned up in the whole output component value I, and the residual output component value I is defined as an output component value II.
Thus, the output component values of the whole are obtained by the above method.
S3, performing cutting treatment on each output component value II to obtain a plurality of subgroups of each output component value II, calculating a reference quantity of each subgroup, obtaining a reference group of each output component value II according to the reference quantity, and obtaining a noise quantity of each output component value II according to the distinguishing condition of each subgroup and the reference group in the output component value II;
The method can obtain complete clutter values, however, the residual output component value II also contains some clutter components, at this time, the whole output component values cannot be cleaned directly, because the effective component values can be cleaned directly by cleaning the whole output component values, the clutter cleaning treatment can be only performed on the other output component values II, the clutter components in the output component values II are filtered, and the clutter cleaning treatment can not be performed on the output component values II by using the same filter because the clutter contents in the output component values II are different, so that the clutter content conditions in the output component values II are analyzed. The filter is set according to the clutter content condition.
The clutter-free sub-group and the clutter-free sub-group are contained in each output component value II, the clutter-free sub-group can be used as a reference group, the clutter quantity of each output component value II is obtained by analyzing the distinguishing condition of the reference group and the other sub-group in each output component value II, and the difference degree between the clutter-free sub-group and the other sub-group in each output component value II is not high, so the reference group is obtained according to the difference degree, and the clutter quantity of the output component value II is obtained according to the reference group in each output component value II.
In a preferred but non-limiting embodiment of the invention, S3 comprises: for any one output component value II, obtaining all valley bottom elements of the output component value II, and cutting the output component value II into a plurality of subgroups by using each valley bottom element as a cutting position, wherein each subgroup contains the valley bottom elements at two ends (the valley bottom element is the last element and the next element are larger than the last element);
Then, the reference quantity of each subgroup is obtained by the following steps:
Taking the quantity obtained by subtracting the value of the last element from each element in each subgroup of each output component value II as the first derivative of each element in each subgroup of each output component value II, and taking the quantity obtained by subtracting the value of the next element from each element in each subgroup of each output component value II as the second derivative of each element in each subgroup of each output component value II; the operation equation for obtaining the reference quantity of each subgroup according to the first derivative and the second derivative of each element in each subgroup of each output component value II is as follows:
，
in the equation of the present invention, Represents the/>Second internal second/>, of the output component valuesNumber of elements within subgroup,/>Represents the/>Second internal second/>, of the output component valuesNumber of elements within subgroup,/>Represents the/>The number of subgroups outputting component values two, each subgroup representing the value of a heave period, by/>Reaction of the first/>Intrinsic first/>, of the individual output component valuesThe undulating coverage status of another subgroup outside the subgroup, via/>Reaction of the first/>The condition of difference in the amount of fluctuation coverage between a subgroup and another subgroup, the subgroup with clutter value tends to be different from the amount of fluctuation coverage of the subgroup without clutter, so the higher the difference in the amount of fluctuation coverage between the subgroup and the other subgroup, the higher the probability that the subgroup is the subgroup with clutter value; /(I)Represents the/>Output component value of twoFirst/>, of subgroupDerivative of individual element one,/>Represents the/>Output component value of twoFirst/>, of subgroupDerivative of individual element two,/>Represents the/>Output component value of twoThe number of elements within a subgroup viaReflecting the distinguishing variation between adjacent values,The higher the fluctuation of the subgroup is, the higher the fluctuation of the clutter value is, so when the fluctuation of the subgroup is not low, the probability that the subgroup is the subgroup with the clutter value is not low is meant; /(I)Is Euler number,/>Represents the/>Output component value of twoReference amounts of subgroups.
In a preferred but non-limiting embodiment of the invention, S3 further comprises: taking the subgroup with the highest reference quantity in the whole subgroups with the second output component values as the reference group with the second output component values;
Then, chebyshev norms of each subgroup and reference group in each output component value II are calculated, and the clutter quantity of each output component value II is obtained according to the Chebyshev norms of each subgroup and reference group, wherein the calculation equation is as follows:
，
in the equation of the present invention, Represents the/>Output component value of twoChebyshev norms for the subgroups and reference groups,Higher amounts of (a) means thatThe higher the discrimination between subgroup and reference group, so the/>The higher the amount of clutter in the individual subgroups,Represents the/>Number of subgroups outputting component values two,/>Represents the pair/>, via the Z-Score methodPerform normalization treatment,/>Represents the/>And outputs a noise amount of component two.
Thus, the amount of noise at each output component value of two is obtained in the above manner.
S4, obtaining a Fourier critical value of each output component value II according to the clutter quantity of each output component value II, performing clutter cleaning treatment on each output component value II according to the Fourier critical value of each output component value II to obtain an output component value III, and integrating the total output component values III to obtain a ground fault identification index III.
The amount of noise in each output component value two is obtained in the above manner, and a filter is set for each output component value two based on the amount of noise in each output component value.
In a preferred but non-limiting embodiment of the invention, S4 comprises:
The operation equation for obtaining the fourier critical value of each output component value two according to the clutter quantity of each output component value two is:
，
in the equation of the present invention, Represents the/>Amount of mixed wave of output component value two,/>Parameter representing preset Fourier critical value,/>The value of (1) may be six,/>Represents the/>Fourier critical values of two output component values;
Applying the Fourier threshold is Fourier filter pair of/>Performing clean clutter treatment to obtain the second/>, of the second output component valueObtaining each output component value three by analogy to obtain each output component value two;
And then, collecting the total output component values three to obtain a ground fault identification index three, wherein the ground fault identification index three is the ground fault identification index after clutter cleaning.
In this way, the anti-interference treatment for the ground fault identification index is achieved to obtain the ground fault identification index three.
As shown in fig. 1, a system for adjusting ground fault information according to the present invention includes:
A terminal is identified;
The identification terminal is used for receiving a voltage value and a current value of an in-out line in the power distribution network system in a wireless mode, performing clutter cleaning on the voltage value and the current value, and identifying whether the in-out line has a single-phase earth fault or not according to the voltage value and the current value after clutter cleaning so as to acquire the information of the earth fault;
The module running on the identification terminal comprises:
a receiving module for receiving an earth fault identification index;
a decomposition module for performing component decomposition treatment on the ground fault identification index to obtain a plurality of first output component values, calculating global fluctuation amounts of the first output component values, obtaining a discrimination amount of each pair of first output component values according to the global fluctuation amounts of the first output component values, and obtaining a plurality of second output component values according to the discrimination amount of each pair of first output component values;
A cutting module for performing a cutting treatment on each output component value two to obtain a plurality of subgroups of each output component value two, calculating a reference amount of each subgroup, obtaining a reference group of each output component value two based on the reference amount, and obtaining a noise amount of each output component value two based on a distinguishing condition of each subgroup and the reference group in the output component value two;
And the cleaning module is used for obtaining the Fourier critical value of each output component value II according to the clutter quantity of each output component value II, performing cleaning clutter treatment on each output component value II according to the Fourier critical value of each output component value II to obtain an output component value III, and integrating the total output component values III to obtain a ground fault identification index III. The terminal is deemed to be a computer.
The invention has the beneficial function that compared with the prior art, the invention obtains a plurality of output component values I through the ground fault identification index decomposition treatment, because the clutter value and the non-clutter value have great difference, the invention responds to the situation that each output component value I is the clutter value by analyzing the distinguishing quantity of each output component value I and the other output component value I, and the output component value I which is totally attributed to the clutter value is initially selected in the total output component value I, so that the output component value I which is totally attributed to the clutter value is cleaned out in the total output component value I to obtain a plurality of output component values II, and the output component value II even if the total non-clutter value is not the clutter value, however, each output component value II is subjected to the action of the clutter value, namely each output component value II contains the clutter value component and the clutter value quantity contained in each output component value II is different, thus, according to the rule that the clutter value component and the non-clutter value component in the output component value II have obvious distinction, the situation that the output component value II is affected by the clutter value is reflected by resolving the distinction between the output component value II and the other subgroup, the clutter value of the output component value II is obtained, the clutter value component of the output component value II is correctly cleaned, the Fourier critical value of the output component value II is correspondingly set according to the clutter value of the output component value II, the clutter value component of the output component value II is correctly cleaned through the Fourier critical value of the active set Fourier filter to obtain the output component value III without clutter interference, the total output component value III is integrated to obtain the ground fault identification index III, and the anti-interference method of the constant Fourier critical value is set in comparison with the current subjective, the invention can actively change the Fourier critical value corresponding to each component according to the clutter content of each output component value in the ground fault identification index, thereby more accurately clearing the clutter in the ground fault identification index and improving the anti-interference function.
The present disclosure can be a system, method, and/or computer program product. The computer program product can include a computer-readable storage medium having computer-readable program instructions embodied thereon for causing a processor to perform various aspects of the present disclosure.
The computer readable auxiliary medium can be a tangible power grid line capable of holding and auxiliary instructions for execution of the power grid line operations by the instructions. The computer readable accessory medium can be, but is not limited to, an electric accessory grid line, a magnetic accessory grid line, an optical accessory grid line, an electromagnetic accessory grid line, a semiconductor accessory grid line, or any suitable combination of the foregoing. Still further examples (non-enumerated list) of the computer-readable storage medium include: portable computer disk, hard disk, random Access Memory (RAM), read-only memory (RyM), erasable programmable read-only memory (EPRyM or flash memory), static Random Access Memory (SRAM), portable compact disk read-only memory (HD-RyM), digital versatile disk (DXD), memory stick, floppy disk, mechanical code grid line, punch card like with instructions attached thereto or bump structure in a groove, optionally properly merging with the above. Computer-readable storage media as used herein are not to be construed as transient messages themselves, such as radio waves or otherwise freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or otherwise transfer medium (just like optical pulses through a transmission line cable), or electrical messages transferred through wires.
The computer readable program instructions expressed herein can be downloaded from a computer readable storage medium to the respective calculation/processing grid lines or to an external computer or external storage grid line via a wireless network, like the internet, a local area network, a wide area network and/or a wireless network. Wireless networks can include copper transfer cables, transmission line transfer, wireless transfer, routers, firewalls, switches, WIFI device computers, and/or edge servers. The wireless network adapter card or wireless network port in each of the extrapolated/processed power grid lines receives computer-readable program instructions from the wireless network and forwards the computer-readable program instructions for storage in the computer-readable accompanying medium in each of the extrapolated/processed power grid lines.
The computer program instructions for performing the operations of the present disclosure can be assembler instructions, instruction set architecture (lSA) instructions, machine-related instructions, microcode, firmware instructions, source code or object code written in a random access memory of one or more programming languages, including an object oriented programming language such as SDALLQALA, H ++ or the like, as opposed to a conventional procedural programming language such as the "H" language or similar programming languages. The computer readable program instructions can be executed entirely on the client computer, partly on the client computer, as a single software package, partly on the client computer and partly on a remote computer or entirely on the remote computer or server. In a modality involving a remote computer, the remote computer can be connected to the client computer through an arbitrary other wireless network, including a local area network (LAb) or a wide area network (UAb), or can be connected to an external computer (as if an internet service provider were employed to connect through the internet). In some embodiments, the various aspects of the present disclosure are achieved by personalizing an electronic circuit, like a programmable logic circuit, a field programmable gate array (disposal platform), or a Programmable Logic Array (PLA), with a status value of the computer readable program instructions.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, and any modifications and equivalents are intended to be encompassed by the scope of the claims.
Claims (6)
1. A method of adjusting for ground fault information, comprising:
the method comprises the steps that a terminal is considered to collect a voltage value and a current value of an in-out line in a power distribution network system in a wireless mode, clutter cleaning is carried out on the voltage value and the current value, whether the in-out line has a single-phase earth fault or not is considered according to the voltage value and the current value after clutter cleaning, so that ground fault information is obtained, and the collected voltage value and current value of the in-out line in the power distribution network system are ground fault identification indexes;
A method of performing clutter cleaning on voltage values and current values, comprising:
S1, collecting an earth fault identification index;
S2, performing component decomposition treatment on the ground fault identification index to obtain a plurality of first output component values, calculating global fluctuation amounts of the first output component values, obtaining a distinguishing amount of each pair of first output component values according to the global fluctuation amounts of the first output component values, and obtaining a plurality of second output component values according to the distinguishing amount of each pair of first output component values;
in S2, the operation equation for obtaining the global fluctuation amount of each output component value one is:
in the equation of the present invention, Represents the/>Global fluctuation amount of one output component value,/>Represents the/>Average number of values of all elements in one output component value,/>Represents the/>The output component value is one inner first/>Numerical value of individual element,/>Representing the number of elements contained in each output component value one; /(I)Represents the/>The output component value is one inner first/>The numerical value of the individual elements;
s2 further comprises: a peak Gu Yuansu for obtaining the whole of the first output component value, and a discrimination value for each pair of the first output component value is obtained based on the discrimination status of the first output component value and the peak-valley element of the second output component value and the discrimination status of the fluctuation amount;
the equation for taking the discrimination of one for each pair of output components is:
in the equation of the present invention, Represents the/>Global fluctuation amount of one output component value,/>Represents the/>Global fluctuation amount of one output component value,/>Represents the/>The number of peak-valley elements contained in one output component value,/>Represents the/>The number of peak-valley elements contained in one output component value,/>Represents the/>The output component value is one inner first/>Peak valley element and second/>Number of elements between peak and valley elements,/>Represents the/>The output component value is one inner first/>Peak valley element and the firstNumber of elements between the individual peak-valley elements; /(I)Represents the/>Output component values one and/>A discrimination amount of the individual output component values one;
S3, performing cutting treatment on each output component value II to obtain a plurality of subgroups of each output component value II, calculating a reference quantity of each subgroup, obtaining a reference group of each output component value II according to the reference quantity, and obtaining a noise quantity of each output component value II according to the distinguishing condition of each subgroup and the reference group in the output component value II;
S4, obtaining a Fourier critical value of each output component value II according to the clutter quantity of each output component value II, performing clutter cleaning treatment on each output component value II according to the Fourier critical value of each output component value II to obtain an output component value III, and integrating the total output component values III to obtain a ground fault identification index III.
2. The method according to claim 1, wherein in S2, the ground fault identification index is decomposed by InfoMax to obtain a plurality of output component values of one of the ground fault identification index.
3. The method of adjusting for ground fault information according to claim 2, wherein S2 further comprises: obtaining a pair of output component values I corresponding to the highest amount of the differential component values, defining the pair of output component values I as reference output component values I, calculating to obtain the average value of the differential amounts of each reference output component value I and the other overall output component values I, and obtaining the overall differential value of each reference output component value I; the corresponding reference output component value of the highest amount of the total zone quantity in the pair of reference output component values is used as a clutter value; the clutter values are cleaned up in the whole output component value I, and the residual output component value I is defined as an output component value II.
4. The method for adjusting ground fault information according to claim 1, wherein S3 comprises: for the arbitrary first output component value II, obtaining the whole valley bottom elements of the output component value II, and cutting the output component value II into a plurality of subgroups by using each valley bottom element as a cutting position, wherein each subgroup is cut to contain the valley bottom elements at two ends;
Then, the reference quantity of each subgroup is obtained by the following steps:
Taking the quantity obtained by subtracting the value of the last element from each element in each subgroup of each output component value II as the first derivative of each element in each subgroup of each output component value II, and taking the quantity obtained by subtracting the value of the next element from each element in each subgroup of each output component value II as the second derivative of each element in each subgroup of each output component value II; the operation equation for obtaining the reference quantity of each subgroup according to the first derivative and the second derivative of each element in each subgroup of each output component value II is as follows:
in the equation of the present invention, Represents the/>Second internal second/>, of the output component valuesNumber of elements within subgroup,/>Represents the/>Second internal second/>, of the output component valuesNumber of elements within subgroup,/>Represents the/>The number of subgroups outputting component values two,Represents the/>Output component value of twoFirst/>, of subgroupDerivative of individual element one,/>Represents the/>Output component value of twoFirst/>, of subgroupDerivative of individual element two,/>Represents the/>Output component value of twoNumber of elements within subgroup,/>Is Euler number,/>Represents the/>Output component value of twoReference amounts of subgroups.
5. The method of adjusting ground fault information as recited in claim 4, wherein S3 further comprises: taking the subgroup with the highest reference quantity in the whole subgroups with the second output component values as the reference group with the second output component values;
Then, chebyshev norms of each subgroup and reference group in each output component value II are calculated, and the clutter quantity of each output component value II is obtained according to the Chebyshev norms of each subgroup and reference group, wherein the calculation equation is as follows:
in the equation of the present invention, Represents the/>Output component value of twoChebyshev norms of subgroup and reference group,/>Represents the/>Number of subgroups outputting component values two,/>Represents the pair/>, via the Z-Score methodPerform normalization treatment,/>Represents the/>And outputs a noise amount of component two.
6. The method of claim 5, wherein S4 comprises:
The operation equation for obtaining the fourier critical value of each output component value two according to the clutter quantity of each output component value two is:
in the equation of the present invention, Represents the/>Amount of mixed wave of output component value two,/>Parameter representing preset Fourier critical value,/>Represents the/>Fourier critical values of two output component values;
Applying the Fourier threshold is Fourier filter pair of/>Performing clean clutter treatment to obtain the second/>, of the second output component valueObtaining each output component value three by analogy to obtain each output component value two;
And then, collecting the total output component values three to obtain a ground fault identification index three, wherein the ground fault identification index three is the ground fault identification index after clutter cleaning.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122810A (en) * | 2011-03-11 | 2011-07-13 | 上海诺雅克电气有限公司 | Current diagnosing device and method for monitoring state of current transformer |
| CN107219457A (en) * | 2017-06-15 | 2017-09-29 | 河北工业大学 | Frame-type circuit breaker fault diagnosis and degree assessment method based on operation annex electric current |
| CN109782108A (en) * | 2019-01-31 | 2019-05-21 | 中国电力科学研究院有限公司 | A kind of single-phase grounded malfunction in grounded system of low current localization method and device |
| CN112986859A (en) * | 2021-02-25 | 2021-06-18 | 国网江苏省电力有限公司无锡供电分公司 | Power distribution network intermittent earth fault protection method based on multi-interval information |
| CN113884816A (en) * | 2021-10-25 | 2022-01-04 | 北京东土科技股份有限公司 | Single-phase earth fault section positioning method, device, equipment and storage medium |
| CN114595623A (en) * | 2021-12-30 | 2022-06-07 | 华能上海燃机发电有限责任公司 | XGboost algorithm-based unit equipment reference value prediction method and system |
| CN116148599A (en) * | 2023-04-19 | 2023-05-23 | 天津滨电电力工程有限公司 | Kurtosis and skewness coefficient-based high-resistance ground fault diagnosis protection method and device |
| CN116169794A (en) * | 2023-04-26 | 2023-05-26 | 南京恺隆电力科技有限公司 | Prompting device and prompting method for power system |
| CN116191679A (en) * | 2023-04-24 | 2023-05-30 | 南京恺隆电力科技有限公司 | High-stability power monitoring system and monitoring method thereof |
| CN116338377A (en) * | 2023-03-16 | 2023-06-27 | 成都信息工程大学 | Method and system for acquiring data on line in real time and realizing ground network fault monitoring |
| CN116893296A (en) * | 2023-06-02 | 2023-10-17 | 国网河北省电力有限公司深泽县供电分公司 | Cable electricity larceny alarm device and alarm control method thereof |
| CN117406190A (en) * | 2023-10-19 | 2024-01-16 | 国网湖北省电力有限公司超高压公司 | Non-excavation pull rod corrosion detection method, device and equipment based on radar signals |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7583483B2 (en) * | 2007-10-04 | 2009-09-01 | Lear Corporation | Vehicle AC ground fault detection system |
-
2024
- 2024-02-07 CN CN202410171434.1A patent/CN117725388B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122810A (en) * | 2011-03-11 | 2011-07-13 | 上海诺雅克电气有限公司 | Current diagnosing device and method for monitoring state of current transformer |
| CN107219457A (en) * | 2017-06-15 | 2017-09-29 | 河北工业大学 | Frame-type circuit breaker fault diagnosis and degree assessment method based on operation annex electric current |
| CN109782108A (en) * | 2019-01-31 | 2019-05-21 | 中国电力科学研究院有限公司 | A kind of single-phase grounded malfunction in grounded system of low current localization method and device |
| CN112986859A (en) * | 2021-02-25 | 2021-06-18 | 国网江苏省电力有限公司无锡供电分公司 | Power distribution network intermittent earth fault protection method based on multi-interval information |
| CN113884816A (en) * | 2021-10-25 | 2022-01-04 | 北京东土科技股份有限公司 | Single-phase earth fault section positioning method, device, equipment and storage medium |
| CN114595623A (en) * | 2021-12-30 | 2022-06-07 | 华能上海燃机发电有限责任公司 | XGboost algorithm-based unit equipment reference value prediction method and system |
| CN116338377A (en) * | 2023-03-16 | 2023-06-27 | 成都信息工程大学 | Method and system for acquiring data on line in real time and realizing ground network fault monitoring |
| CN116148599A (en) * | 2023-04-19 | 2023-05-23 | 天津滨电电力工程有限公司 | Kurtosis and skewness coefficient-based high-resistance ground fault diagnosis protection method and device |
| CN116191679A (en) * | 2023-04-24 | 2023-05-30 | 南京恺隆电力科技有限公司 | High-stability power monitoring system and monitoring method thereof |
| CN116169794A (en) * | 2023-04-26 | 2023-05-26 | 南京恺隆电力科技有限公司 | Prompting device and prompting method for power system |
| CN116893296A (en) * | 2023-06-02 | 2023-10-17 | 国网河北省电力有限公司深泽县供电分公司 | Cable electricity larceny alarm device and alarm control method thereof |
| CN117406190A (en) * | 2023-10-19 | 2024-01-16 | 国网湖北省电力有限公司超高压公司 | Non-excavation pull rod corrosion detection method, device and equipment based on radar signals |
Non-Patent Citations (2)
| Title |
|---|
| Grounding and Ground Fault Protection of Multiple Generator Installations on Medium-Voltage Industrial and Commercial Power Systems—Part 4: Conclusion and Bibliography Working Group Report;Prafulla Pillai 等;《IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS》;20041231;第40卷(第1期);29-32 * |
| 基于零序电流的单相接地故障定位***;郭玉会 等;《电力学报》;20121231;第27卷(第6期);550-553 * |
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