A leakage current compensation method, device, electronic equipment and medium

Abstract

The present invention provides a leakage current compensation method, device, electronic device and medium, by obtaining the current component measurement values ​​of the leakage current corresponding to the arresters of different phases; wherein the current component measurement values ​​include the capacitive component measurement values ​​and the resistive component measurement values; according to the capacitive component measurement values ​​under different phases, the interference current between the arresters of each phase is determined; according to the interference current, the current component measurement values ​​of the arresters of each phase are compensated respectively. The technical solution of the present invention improves the accuracy of the leakage current determination result.

Description

Technical Field

[0001] The embodiments of the present invention relate to a lightning arrester leakage current measurement technology, and in particular to a leakage current compensation method, device, electronic equipment and medium. Background Art

[0002] At present, in the process of testing the leakage current of the lightning arrester in the substation, the interference of the electric field in the test environment will cause certain errors in the measurement data, and the insulation state of the lightning arrester cannot be accurately monitored, and the leakage current needs to be compensated.

[0003] In the prior art, the arrester leakage current compensation is usually performed by manually inputting the compensation angle or calculating the average of the angle between the leakage current and the operating voltage phase. However, the above compensation method is not accurate enough and cannot reflect the real state of the arrester. Therefore, how to accurately compensate for the leakage current is crucial. Summary of the invention

[0004] The present invention provides a leakage current compensation method, device, electronic equipment and medium to achieve accurate compensation of the arrester leakage current.

[0005] According to one aspect of the present invention, there is provided a leakage current compensation method, comprising:

[0006] Obtaining current component measurement values ​​of leakage current corresponding to lightning arresters of different phases; wherein the current component measurement values ​​include capacitive component measurement values ​​and resistive component measurement values;

[0007] Determine the interference current between the arresters of each phase according to the measured values ​​of the capacitive components at different phases;

[0008] The current component measurement value of the lightning arrester of each phase is compensated according to the interference current.

[0009] According to another aspect of the present invention, there is also provided a leakage current compensation device, comprising:

[0010] A data acquisition module, used to obtain current component measurement values ​​of leakage current corresponding to the arrester of different phases; wherein the current component measurement values ​​include capacitive component measurement values ​​and resistive component measurement values;

[0011] The interference current determination module is used to determine the interference current between the arresters of each phase according to the capacitive component measurement values ​​under different phases;

[0012] The compensation data determination module is used to compensate the current component measurement value of the lightning arrester of each phase according to the interference current.

[0013] According to another aspect of the present invention, there is also provided an electronic device, comprising:

[0014] one or more processors;

[0015] A memory for storing one or more programs;

[0016] When the one or more programs are executed by the one or more processors, the one or more processors are able to execute any one of the leakage current compensation methods provided by the embodiments of the present invention.

[0017] According to another aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored. When the program is executed by a processor, any leakage current compensation method provided by the embodiments of the present invention is implemented.

[0018] The leakage current compensation method provided by the embodiment of the present invention obtains the current component measurement values ​​of the leakage current corresponding to the arresters of different phases; wherein the current component measurement values ​​include the capacitive component measurement values ​​and the resistive component measurement values; according to the capacitive component measurement values ​​at different phases, the interference current between the arresters of each phase is determined; and according to the interference current, the current component measurement values ​​of the arresters of each phase are compensated respectively. The above scheme determines the interference current used to characterize the influence on the leakage current by introducing the capacitive component measurement values ​​of the arresters of different phases, thereby compensating the current component measurement values ​​of the arresters of each phase by the interference current, thereby improving the accuracy of the current component measurement values ​​of the leakage current, and further improving the accuracy of the leakage current.

[0019] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 is a flow chart of a leakage current compensation method provided by Embodiment 1 of the present invention;

[0022] Figure 2A is a flow chart of a leakage current compensation method provided by Embodiment 2 of the present invention;

[0023] Figure 2B is a lightning arrester leakage current phase diagram provided by the second embodiment of the present invention;

[0024] Figure 2C is another lightning arrester leakage current phase diagram provided by the second embodiment of the present invention;

[0025] Figure 3 is a flow chart of a leakage current compensation method provided by Embodiment 3 of the present invention;

[0026] Figure 4 is a schematic structural diagram of a leakage current compensation device provided by a fourth embodiment of the present invention;

[0027] Figure 5 It is a structural schematic diagram of an electronic device for implementing a leakage current compensation method provided in Embodiment 5 of the present invention. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] Embodiment 1

[0030] Figure 1 It is a flow chart of a leakage current compensation method provided in Embodiment 1 of the present invention. This embodiment can be applied to the situation of accurately compensating the detected arrester leakage current. The method can be executed by a leakage current compensation device, which can be implemented in software and / or hardware and can be integrated in an electronic device that carries the leakage current compensation function.

[0031] See also Figure 1 The leakage current compensation method shown comprises:

[0032] S110. Obtain current component measurement values ​​of leakage currents corresponding to lightning arresters of different phases.

[0033] Among them, leakage current can be used to characterize the current flowing through the insulation part of the arrester when there is no fault and voltage is applied. Specifically, leakage current is one of the important indicators to measure the insulation quality of electrical appliances and is the main indicator of product safety performance.

[0034] The current component measurement value may include a capacitive component measurement value and a resistive component measurement value.

[0035] Specifically, under the operating voltage, the leakage current flowing through the arrester can include the capacitive component measurement value (reactive component) and the resistive component measurement value (active component). Among them, the capacitive component measurement value can be used to characterize the current formed by the bus voltage passing through the capacitance between the arrester valve plates to the grounding wire. Among them, the resistive component measurement value can be used to characterize the current formed by the bus voltage passing through the high-value resistance of the arrester valve plate to the grounding wire. The size of the resistive component measurement value is an important parameter that determines the performance of the arrester. Among them, the operating voltage can be used to characterize the voltage from a single phase to the ground.

[0036] Among them, the arresters of different phases can be used to characterize the type of arrester. Specifically, the arresters of different phases can include an A-phase arrester, a B-phase arrester, and a C-phase arrester. Optionally, the three-phase arresters have the same model and structure, and the A-phase arrester and the C-phase arrester are equidistantly arranged on both sides of the B-phase arrester.

[0037] Specifically, the arrester live tester can be used to introduce the arrester leakage current into the instrument through the measuring wire at the upper end of the arrester counter, obtain the leakage current corresponding to the arrester of different phases, and the angle between the leakage current and the operating voltage, and obtain the capacitive component measurement value and the resistive component measurement value. Among them, the operating voltage can be measured using a voltage transformer.

[0038] S120. Determine the interference current between the arresters of each phase according to the measured values ​​of the capacitive components in different phases.

[0039] Among them, the interference current can be used to characterize the current formed by the phase-to-phase coupling capacitance. Specifically, the leakage current on the surface of the arrester will couple with the surface leakage current of the adjacent arrester to form a phase-to-phase coupling distributed capacitance, generate capacitive current, and interfere with the leakage current measurement of the arrester. It should be noted that the phase-to-phase coupling distributed capacitance of the arrester is affected by the shape structure of the arrester, the phase-to-phase distance and other factors, and has nothing to do with the internal insulation state of the arrester.

[0040] Optionally, the leakage current on the surface of the A-phase arrester will be coupled with the surface leakage current of the adjacent B-phase arrester to form a phase-to-phase coupling distributed capacitance, generating a capacitive current, which is the interference current between the A-phase arrester and the B-phase arrester. Alternatively, the leakage current on the surface of the C-phase arrester will be coupled with the leakage current on the surface of the adjacent B-phase arrester to form a phase-to-phase coupling distributed capacitance, generating a capacitive current, which is the interference current between the C-phase arrester and the B-phase arrester.

[0041] Specifically, the interference current between the arresters of each phase is obtained by calculating according to the measured values ​​of the capacitive components in different phases.

[0042] S130, respectively compensating the current component measurement value of the lightning arrester of each phase according to the interference current.

[0043] Specifically, due to the influence of interference current, the current component measurement value of the arrester of each phase deviates from the theoretical current component measurement value (such as increase or decrease), so it is necessary to correct the deviation to obtain the corrected current component measurement value. Among them, the theoretical current component measurement value can be used to characterize the current component measurement value determined without the influence of interference current.

[0044] Optionally, compensating the current component measurement values ​​of the lightning arrester of each phase according to the interference current can include: determining the compensated capacitive component measurement value and the compensated resistive component measurement value according to the capacitive component measurement value, resistive component measurement value and interference current corresponding to the lightning arrester of each phase.

[0045] Specifically, the compensated capacitive component measurement value is determined based on the capacitive component measurement value of the phase arrester plus the interference current; the compensated resistive component measurement value is determined based on the resistive component measurement value of the phase arrester plus or minus the interference current.

[0046] The leakage current compensation method provided by the embodiment of the present invention obtains the current component measurement values ​​of the leakage current corresponding to the arresters of different phases; wherein the current component measurement values ​​include the capacitive component measurement values ​​and the resistive component measurement values; according to the capacitive component measurement values ​​at different phases, the interference current between the arresters of each phase is determined; and according to the interference current, the current component measurement values ​​of the arresters of each phase are compensated respectively. The above scheme determines the interference current used to characterize the influence on the leakage current by introducing the capacitive component measurement values ​​of the arresters of different phases, thereby compensating the current component measurement values ​​of the leakage current by the interference current, thereby improving the accuracy of the current component measurement values ​​of the leakage current, and further improving the accuracy of the leakage current.

[0047] It should be noted that, for the parts not described in detail in the embodiments of the present invention, reference may be made to the relevant descriptions of other embodiments and will not be repeated here.

[0048] In this embodiment, for each phase of the arrester, the angle between the compensated leakage current and the operating voltage of the arrester of that phase can be determined according to the measured value of the current component corresponding to the compensated arrester of that phase.

[0049] Exemplarily, the angle between the compensated leakage current and the operating voltage of the phase arrester is determined based on the ratio of the compensated capacitive component measurement value corresponding to the phase arrester to the compensated resistive component measurement value corresponding to the phase arrester.

[0050] Specifically, the angle between the compensated leakage current of any phase arrester and the operating voltage corresponding to the phase arrester can be determined based on the following formula.

[0051]

[0052] in, I' is the angle between the compensated leakage current of any phase arrester and the operating voltage of the arrester of that phase; C is the measured value of the capacitive component of the phase arrester after compensation; I' R It is the measured value of the resistive component of the phase arrester after compensation.

[0053] Optionally, the angle between the compensated leakage current of the phase A arrester and the operating voltage of the arrester of that phase may be determined based on the measured value of the compensated capacitive component of the phase A arrester and the measured value of the compensated resistive component of the phase A arrester.

[0054] Specifically, the angle between the compensated leakage current of the A phase arrester and the operating voltage of the phase arrester can be determined based on the following formula:

[0055]

[0056] in, I' is the angle between the compensated leakage current of the A phase arrester and the operating voltage of the arrester of this phase; AC is the capacitive component measurement value after compensation of the A-phase arrester; I' AR It is the measured value of the resistive component of the A-phase arrester after compensation.

[0057] Optionally, the angle between the compensated leakage current of the B-phase arrester and the operating voltage of the arrester of that phase may be determined based on the measured value of the compensated capacitive component of the B-phase arrester and the measured value of the compensated resistive component of the B-phase arrester.

[0058] Specifically, the angle between the compensated leakage current of the B phase arrester and the operating voltage of the arrester of this phase can be determined based on the following formula:

[0059]

[0060] in, I' is the angle between the compensated leakage current of the B phase arrester and the operating voltage of the arrester of this phase; BC is the capacitive component measurement value after compensation of the B phase arrester; I' BR It is the measured value of the resistive component of the B-phase arrester after compensation.

[0061] Optionally, the angle between the compensated leakage current of the C phase arrester and the operating voltage of the arrester of that phase may be determined based on the measured value of the compensated capacitive component of the C phase arrester and the measured value of the compensated resistive component of the C phase arrester.

[0062] Specifically, the angle between the compensated leakage current of the C phase arrester and the operating voltage of the arrester of this phase can be determined based on the following formula:

[0063]

[0064] in, I' is the angle between the compensated leakage current of the C phase arrester and the operating voltage of the arrester of this phase; CC is the capacitive component measurement value after compensation of the C phase arrester; I' CR It is the measured value of the resistive component of the C phase arrester after compensation.

[0065] In this embodiment, the angle between the compensated leakage current and the operating voltage of any phase arrester is determined by the ratio of the measured value of the capacitive component of any phase arrester after compensation to the measured value of the resistive component of the phase arrester after compensation, so that the determined result is more accurate.

[0066] Specifically, the larger the included angle between the compensated leakage current and the operating voltage of the phase arrester, and / or the smaller the measured value of the compensated resistive component, the better the performance of the arrester.

[0067] It can be understood that the above technical scheme improves the accuracy of the above angle determination result by introducing the measured value of the resistive component after compensation of any phase lightning arrester and the measured value of the capacitive component after compensation of the phase lightning arrester, thereby compensating for the angle between the leakage current and the operating voltage of the phase lightning arrester. Since the above angle can indirectly reflect the insulation performance of the lightning arrester, it provides references in different dimensions for the performance detection of the lightning arrester, thereby improving the diversity and richness of the performance detection of the lightning arrester.

[0068] Embodiment 2

[0069] Figure 2A is a flow chart of a leakage current compensation method provided by Embodiment 2 of the present invention, Figure 2B is a lightning arrester leakage current phase diagram provided by the second embodiment of the present invention, Figure 2C It is another arrester leakage current phase diagram provided by the second embodiment of the present invention. Based on the above embodiments, this embodiment further refines the operation of "determining the interference current between the arresters of each phase according to the capacitive component measurement values ​​under different phases" into "using at least one of the capacitive component measurement values ​​of the A phase arrester and the C phase arrester as the reference capacitive component measurement value; determining the interference current according to the reference capacitive component measurement value and the capacitive component measurement value of the B phase arrester" to improve the interference current determination mechanism. Combined with Figure 2B and Figure 2C ,right Figure 2A The leakage current compensation method shown is described in detail.

[0070] See also Figure 2A The leakage current compensation method shown comprises:

[0071] S210. Obtain current component measurement values ​​of leakage currents corresponding to lightning arresters of different phases.

[0072] Optionally, when the three-phase arresters have the same model and structure, the A-phase arrester and the C-phase arrester are equidistantly arranged on both sides of the B-phase arrester. The current component measurement value can be determined according to the leakage current corresponding to the arresters of different phases and the angle between the leakage current and the operating voltage of the arrester of the phase, and the relationship between the theoretical current component measurement value and the current component measurement value can be determined.

[0073] The theoretical resistive component measurement value can be obtained by multiplying the leakage current corresponding to any phase arrester by the cosine value of the angle between the leakage current and the operating voltage of the arrester of that phase; the theoretical capacitive component measurement value can be obtained by multiplying the leakage current corresponding to any phase arrester by the sine value of the angle between the leakage current and the operating voltage of the arrester of that phase.

[0074] It should be noted that, in this embodiment, the three-phase lightning arresters are of the same model and the phase-to-phase distances are equal. It can be considered that the coupling distributed capacitance between the A-phase lightning arrester and the B-phase lightning arrester is equal to the coupling distributed capacitance between the B-phase lightning arrester and the C-phase lightning arrester, and the interference currents formed by the phase-to-phase coupling capacitances are equal, that is, the interference current between the A-phase lightning arrester and the B-phase lightning arrester is equal to the interference current between the B-phase lightning arrester and the C-phase lightning arrester.

[0075] For example, U A is the operating voltage of the A phase arrester, I A is the operating voltage U A The corresponding leakage current, is the leakage current I A With operating voltage U A The angle between X is the interference current, then the resistance component measurement value is The resistance component measurement value is larger than the theoretical value. The capacitive component is measured as The capacitive component measurement value is reduced compared to the theoretical value.

[0076] For example, U C is the operating voltage of the C phase arrester, I C is the operating voltage U C The corresponding leakage current, is the leakage current I C With operating voltage U C The angle between the two is, then the resistance component measurement value is The resistance component measurement value is reduced compared to the theoretical value. The capacitive component is measured as The capacitive component measurement value is reduced compared to the theoretical value.

[0077] It should be noted that 60° can be used to characterize the angle between the operating voltage and the interference current of the A-phase arrester, and 60° can also be used to characterize the angle between the operating voltage and the interference current of the C-phase arrester. Specifically, 60° can be evenly distributed on the phase diagram according to the operating voltage of the three-phase arrester, the angle between every two operating voltages is 120°, and the interference current I X The line voltage is determined by 90° ahead of the line voltage. The line voltage can be used to characterize the voltage between two adjacent phase arresters. X Leading line voltage U AB 90°, the operating voltage U can be determined A With interference current I X The line voltage U AB It can be used to characterize the voltage between the A phase arrester and the B phase arrester. Or alternatively, when the interference current I X Leading line voltage U CB 90°, the operating voltage U can be determined C With interference current I X The line voltage U CB It can be used to characterize the voltage between the C phase arrester and the B phase arrester. It should be noted that when the three-phase arresters have the same model and structure, the voltage across the coupling distributed capacitor between the A phase arrester and the B phase arrester is proportional to the line voltage U between the two phase arresters. AB Therefore, the current flowing through the coupling distributed capacitance between the two-phase arrester leads the line voltage U AB 90°, that is, the interference current I X Leading line voltage U AB 90°; When the three-phase arresters are of the same model and structure, the voltage across the coupling distributed capacitor between the C-phase arrester and the B-phase arrester is proportional to the line voltage U between the two-phase arresters. CB Therefore, the current flowing through the coupling distributed capacitance between the two-phase arrester leads the line voltage U CB 90°, that is, the interference current I X Leading line voltage U CB 90°.

[0078] For example, U Bis the operating voltage of the B-phase arrester. The B-phase arrester is simultaneously subjected to coupling interference from the A-phase arrester and the C-phase arrester. The measured value of the resistive component of the B-phase arrester is approximately equal to the theoretical measured value of the resistive component. The measured value of the capacitive component of the B-phase arrester can be determined by superimposing the measured values ​​of the capacitive components of the A-phase arrester and the C-phase arrester. It can be seen from the above that the measured value of the capacitive component of the B-phase arrester is reduced compared with the theoretical measured value of the capacitive component.

[0079] S220. Use at least one of the capacitive component measurement value of the A-phase lightning arrester and the capacitive component measurement value of the C-phase lightning arrester as a reference capacitive component measurement value.

[0080] Wherein, the reference capacitive component measurement value can be used to characterize the standard of the capacitive component measurement value, and the calculation is performed according to the standard. Optionally, the reference capacitive component measurement value may include the capacitive component measurement value of the A-phase lightning arrester. Or optionally, the reference capacitive component measurement value may also include the capacitive component measurement value of the C-phase lightning arrester. Or optionally, the reference capacitive component measurement value may also include the capacitive component measurement value of the A-phase lightning arrester and the capacitive component measurement value of the C-phase lightning arrester.

[0081] Specifically, the capacitive component measurement value of the A-phase lightning arrester can be used as a reference capacitive component measurement value; or, the capacitive component measurement value of the C-phase lightning arrester can be used as a reference capacitive component measurement value; or, the capacitive component measurement value of the A-phase lightning arrester and the capacitive component measurement value of the C-phase lightning arrester can both be used as reference capacitive component measurement values.

[0082] S230: Determine the interference current according to the reference capacitive component measurement value and the capacitive component measurement value of the B-phase arrester.

[0083] In this embodiment, the arresters of the same model and structure have substantially the same body capacitance and are less affected by the insulation state. Therefore, it can be considered that the capacitive component measurement values ​​of the three-phase arresters are substantially equal without the influence of the interference current. However, as can be seen from the foregoing, the capacitive current component measurement values ​​of the three-phase arresters are actually affected by the interference current, making the capacitive component measurement values ​​of the three-phase arresters unequal, that is, C A =C C >C B It should be noted that Among them, C A It can be used to characterize the capacitive component measurement value of the A-phase arrester when it is affected by interference current; C B It can be used to characterize the capacitive component measurement value of the B phase arrester when it is affected by the interference current; C C It can be used to characterize the capacitive component measurement value of the C-phase arrester when it is affected by interference current.

[0084] According to the above, the capacitive component measurement values ​​of the A-phase lightning arrester and the C-phase lightning arrester are affected by the interference current, which is smaller than the case without the interference current. The capacitive component measurement value of the B phase arrester is affected by the interference current and is smaller than that without the interference current. Therefore, the capacitive component measurement value of the B phase arrester is smaller than the capacitive component measurement values ​​of the A phase arrester and the C phase arrester. Based on the above conclusions, the interference current can be obtained.

[0085] Optionally, the interference current may be determined based on at least one reference capacitive component measurement value and a capacitive component measurement value of the B-phase arrester.

[0086] Exemplarily, the manner of determining the interference current may include: if the reference capacitive component measurement value is a single value, determining the interference current according to the difference between the reference capacitive component measurement value and the capacitive component measurement value of the B-phase arrester.

[0087] Optionally, if the reference capacitive component measurement value is the capacitive component measurement value of the A-phase arrester, the first interference current I can be determined based on the following formula: X1 :

[0088]

[0089] Among them, the first interference current I X1 It can be used to characterize the current formed by the phase coupling capacitance between the A phase arrester and the B phase arrester; C A It can be used to characterize the capacitive component measurement value of the A-phase arrester when it is affected by interference current; C B It can be used to characterize the capacitive component measurement value of the B-phase arrester when it is affected by interference current.

[0090] Alternatively, if the reference capacitive component measurement value is the capacitive component measurement value of the C-phase arrester, the second interference current I can be determined based on the following formula: X2 :

[0091]

[0092] Among them, the second interference current I X2 It can be used to characterize the current formed by the phase coupling capacitance between the C phase arrester and the B phase arrester; C C It can be used to characterize the capacitive component measurement value of the C phase arrester when it is affected by interference current; C B It can be used to characterize the capacitive component measurement value of the B-phase arrester when it is affected by interference current.

[0093] Exemplarily, the method for determining the interference current may also include: if the reference capacitive component measurement value includes two numerical values, that is, the reference capacitive component measurement value includes the capacitive component measurement value of the A-phase lightning arrester and the capacitive component measurement value of the C-phase lightning arrester, then the difference between the capacitive component measurement value of the B-phase lightning arrester and each reference capacitive component measurement value is determined respectively, and the interference current is determined based on each difference result.

[0094] Specifically, if the reference capacitive component measurement value is the capacitive component measurement value of the A-phase arrester and the capacitive component measurement value of the C-phase arrester, then the third interference current I X3 It can be the first interference current I X1 and the second interference current I X2 The mean of .

[0095] Optionally, the first interference current can be calculated based on the difference between the capacitive component measurement value of the A phase arrester and the capacitive component measurement value of the B phase arrester. Among them, C A It can be used to characterize the capacitive component measurement value of the A-phase arrester when it is affected by interference current; C B It can be used to characterize the capacitive component measurement value of the B-phase arrester when it is affected by the interference current. The second interference current is calculated based on the difference between the capacitive component measurement value of the C-phase arrester and the capacitive component measurement value of the B-phase arrester. Among them, C C It can be used to characterize the capacitive component measurement value of the C phase arrester when it is affected by interference current; C B It can be used to characterize the capacitive component measurement value of the B phase arrester when it is affected by the interference current. X1 With the second interference current I X2 The third interference current I can be obtained by taking the average of X3 .

[0096] Among them, the third interference current I X3 It can be used to characterize the current formed by the phase coupling capacitance between the B phase arrester and the A phase arrester and the C phase arrester. It should be noted that when the arrester model and structure are the same, the first interference current, the second interference current and the third interference current are the same; when the arrester model and / or structure are different, the first interference current, the second interference current and the third interference current are different.

[0097] In this embodiment, the interference current between the arresters of each phase is determined by the difference between at least one reference capacitive component measurement value and the capacitive component measurement value of the B phase arrester, thereby improving the accuracy of the interference current determination result.

[0098] S240, respectively compensating the current component measurement value of the lightning arrester of each phase according to the interference current.

[0099] The leakage current compensation method provided by the embodiment of the present invention obtains the current component measurement value of the leakage current corresponding to the arrester of different phases; uses at least one of the capacitive component measurement value of the A-phase arrester and the capacitive component measurement value of the C-phase arrester as a reference capacitive component measurement value; determines the interference current according to the reference capacitive component measurement value and the capacitive component measurement value of the B-phase arrester; and compensates the current component measurement value of the arrester of each phase according to the interference current. The above scheme determines the interference current between the arresters of each phase by determining at least one reference capacitive component measurement value and the capacitive component measurement value of the B-phase arrester. The influence of a single reference capacitive component measurement value on the determination of the interference current is avoided, and the accuracy of the interference current determination result is improved.

[0100] It should be noted that, for the parts not described in detail in the embodiments of the present invention, reference may be made to the relevant descriptions of other embodiments and will not be repeated here.

[0101] Embodiment 3

[0102] Figure 3 It is a flow chart of a leakage current compensation method provided in Example 3 of the present invention. Based on the above embodiments, this embodiment further refines the operation of "compensating the current component measurement values ​​of the lightning arresters of each phase according to the interference current" into "for the lightning arresters of each phase, determining the interference component of the lightning arrester of that phase according to the interference current; and compensating the current component measurement value of the lightning arrester of that phase according to the interference component of the lightning arrester of that phase" to improve the compensation mechanism of the current component measurement value.

[0103] See also Figure 3 The leakage current compensation method shown comprises:

[0104] S310, obtaining current component measurement values ​​of leakage currents corresponding to lightning arresters of different phases.

[0105] S320. Determine the interference current between the arresters of each phase according to the measured values ​​of the capacitive components in different phases.

[0106] S330. For the lightning arrester of each phase, determine the interference component of the lightning arrester of that phase according to the interference current.

[0107] The interference component can be used to characterize the current component measurement value of the leakage current corresponding to the arrester of different phases due to the influence of the interference current, and the current that deviates from the theoretical current component measurement value. The interference component can include a capacitive interference component and a resistive interference component.

[0108] Optionally, if the current component measurement value is a resistive component measurement value, the corresponding interference current is a resistive interference component; if the current component measurement value is a capacitive component measurement value, the corresponding interference current is a capacitive interference component.

[0109] For example, according to the above, the measured value of the resistive component of the A-phase arrester is greater than the theoretical measured value of the resistive component. Then the resistive interference component of the A phase arrester is The measured capacitive component value of the A-phase arrester is smaller than the theoretical capacitive component value. Then the capacitive interference component of the A phase arrester is

[0110] Specifically, the A-phase arrester will be interfered by the B-phase arrester, and the interference current between the A-phase arrester and the B-phase arrester is equal. From the above, it can be known that the theoretical capacitive component measurement value of the B-phase arrester and the theoretical capacitive component measurement value of the A-phase arrester should be equal, but the measured capacitive component measurement value of the B-phase arrester is smaller than the measured capacitive component measurement value of the A-phase arrester. It can be seen that the difference between the capacitive component measurement values ​​of the A-phase arrester and the B-phase arrester is due to the interference of the C-phase arrester, so the resistive interference component of the A-phase arrester is The capacitive interference component of the A phase arrester is (C C -C B ).

[0111] For example, according to the above, the measured value of the resistive component of the C phase arrester is smaller than the theoretical measured value of the resistive component. Then the resistive interference component of the C phase arrester is The capacitive component measured value of the C phase arrester is smaller than the theoretical capacitive component measured value. Then the capacitive interference component of the C phase arrester is

[0112] Specifically, the C phase arrester will be interfered by the B phase arrester, and the interference current between the C phase arrester and the B phase arrester is equal. From the above, it can be known that the theoretical capacitive component measurement value of the B phase arrester and the theoretical capacitive component measurement value of the C phase arrester should be equal, but the measured capacitive component measurement value of the B phase arrester is smaller than the measured capacitive component measurement value of the C phase arrester. It can be seen that the difference between the capacitive component measurement values ​​of the C phase arrester and the B phase arrester is due to the interference of the A phase arrester, so the resistive interference component of the C phase arrester is The capacitive interference component of the C phase arrester is (C A -C B ).

[0113] For example, according to the above, if the measured value of the resistive component of the B-phase arrester is approximately equal to the theoretical measured value of the resistive component, the resistive interference component of the B-phase arrester is approximately 0; the measured value of the capacitive component of the B-phase arrester is smaller than the theoretical measured value of the capacitive component. Then the capacitive interference component of the B phase arrester is

[0114] Specifically, the B-phase arrester will be interfered by the A-phase arrester and the C-phase arrester. The interference currents of the A-phase arrester and the C-phase arrester are superimposed, and the measured value of the resistive component of the B-phase arrester is approximately equal to the theoretical measured value of the resistive component. Then, the resistive interference component of the B-phase arrester is approximately 0; the measured value of the capacitive component of the B-phase arrester is reduced by 0. The capacitive interference component of the B phase arrester is You can It is divided into two parts. One part is the interference of the B phase arrester by the A phase arrester, and the other part is the interference of the B phase arrester by the C phase arrester. By superimposing the interference currents of the two parts, the capacitive interference component of the B phase arrester can be obtained as (C A +C C -2C B ).

[0115] S340: Compensate the current component measurement value of the phase arrester according to the interference component of the phase arrester.

[0116] Specifically, the resistive interference component of the phase arrester is used to compensate the measured value of the resistive component to obtain the compensated measured value of the resistive component; and the capacitive interference component of the phase arrester is used to compensate the measured value of the capacitive component to obtain the compensated measured value of the capacitive component.

[0117] Exemplarily, the resistive component measurement value of the phase arrester can be compensated according to the resistive interference component of the phase arrester, and the compensated resistive component measurement value of the phase arrester is determined based on the following formula:

[0118] I' R =I R ±I XR ;

[0119] Among them, I' R I is the measured value of the resistive component after compensation of any phase arrester; R is the measured value of the resistive component of the phase arrester; I XR is the resistive interference component of the phase arrester.

[0120] Specifically, from the above, it can be known that the resistive interference component of the A phase arrester is The measured value of the resistive component of the A-phase arrester is greater than the theoretical measured value of the resistive component. The measured value of the resistive component of the A-phase arrester after compensation is:

[0121]

[0122] Among them, I' AR is the measured value of the resistive component of the A-phase arrester after compensation; I AR is the measured value of the resistive component of the A-phase arrester.

[0123] Specifically, from the above, it can be known that the resistive interference component of the C phase arrester is The measured value of the resistive component of the C-phase arrester is less than the theoretical measured value of the resistive component. The measured value of the resistive component of the C-phase arrester after compensation is:

[0124]

[0125] Among them, I' CR is the measured value of the resistive component of the C phase arrester after compensation; I CR is the measured value of the resistive component of the C phase arrester.

[0126] Specifically, it can be seen from the above that the measured value of the resistive component of the B-phase arrester is approximately equal to the theoretical measured value of the resistive component, and the resistive interference component of the B-phase arrester is approximately 0. Then the measured value of the resistive component of the B-phase arrester after compensation is:

[0127] I' BR =I BR ;

[0128] Among them, I' BR is the measured value of the resistive component of the B-phase arrester after compensation; I BR is the measured value of the resistive component of the B phase arrester.

[0129] Exemplarily, the capacitive component measurement value of the phase arrester can be compensated according to the capacitive interference component of the phase arrester, and the compensated capacitive component measurement value of the phase arrester can be obtained based on the following formula.

[0130] I' C =I C +I XC ;

[0131] Among them, I' C is the capacitive component measurement value after compensation of any phase arrester, I C is the measured value of the capacitive component of the phase arrester, I XC is the capacitive interference component of the phase arrester.

[0132] Specifically, from the above, it can be known that the capacitive interference component of the A phase arrester is (CC -C B ), the capacitive component measurement value of the A-phase arrester is less than the theoretical capacitive component measurement value, then the capacitive component measurement value of the A-phase arrester after compensation is:

[0133] I' AC =I AC +(C C -C B );

[0134] Among them, I' AC is the capacitive component measurement value after compensation of the A-phase arrester; I AC is the measured value of the capacitive component of the A-phase arrester.

[0135] Specifically, from the above, it can be known that the capacitive interference component of the C phase arrester is (C A -C B ), the capacitive component measurement value of the C-phase arrester is less than the theoretical capacitive component measurement value, then the capacitive component measurement value of the C-phase arrester after compensation is:

[0136] I' CC =I CC +(C A -C B );

[0137] Among them, I' CC is the capacitive component measurement value after compensation of the C phase arrester; I CC is the measured value of the capacitive component of the C phase arrester.

[0138] Specifically, from the above, it can be known that the capacitive interference component of the B phase arrester is (C A +C C -2C B ), the capacitive component measurement value of the B-phase arrester is less than the theoretical capacitive component measurement value, then the capacitive component measurement value of the B-phase arrester after compensation is:

[0139] I' BC =I BC +(C A +C C -2C B );

[0140] Among them, I' BC is the capacitive component measurement value after compensation of the B phase arrester; I BC is the measured value of the capacitive component of the B phase arrester.

[0141] In this embodiment, the measured value of the resistive component of any phase arrester and the measured value of the capacitive component of the phase arrester are compensated respectively according to the resistive interference component of any phase arrester and the capacitive interference component of the phase arrester, so that the compensation is more accurate.

[0142] The leakage current compensation method provided by the embodiment of the present invention obtains the current component measurement value of the leakage current corresponding to the arrester of different phases; determines the interference current between the arresters of each phase according to the capacitive component measurement value at different phases; determines the interference component of the arrester of each phase according to the interference current; and compensates the current component measurement value of the arrester of that phase according to the interference component of the arrester of that phase. The above scheme compensates the current component measurement value of the arrester of that phase by determining the interference component corresponding to the current component measurement value of the leakage current of the arrester of different phases, so that the compensation is more accurate and can better reflect the state of the arrester.

[0143] It should be noted that, for the parts not described in detail in the embodiments of the present invention, reference may be made to the relevant descriptions of other embodiments and will not be repeated here.

[0144] Embodiment 4

[0145] Figure 4 4 is a schematic diagram of the structure of a leakage current compensation device provided by the fourth embodiment of the present invention. As shown in FIG4 , the leakage current compensation device includes: a data acquisition module 410, an interference current determination module 420 and a compensation data determination module 430. Among them,

[0146] The data acquisition module 410 is used to obtain the current component measurement values ​​of the leakage current corresponding to the arrester of different phases; wherein the current component measurement values ​​include the capacitive component measurement values ​​and the resistive component measurement values;

[0147] The interference current determination module 420 is used to determine the interference current between the arresters of each phase according to the capacitive component measurement values ​​at different phases;

[0148] The compensation data determination module 430 is used to compensate the current component measurement value of the lightning arrester of each phase according to the interference current.

[0149] The leakage current compensation method provided by the embodiment of the present invention obtains the current component measurement values ​​of the leakage current corresponding to the arresters of different phases; wherein the current component measurement values ​​include the capacitive component measurement values ​​and the resistive component measurement values; according to the capacitive component measurement values ​​at different phases, the interference current between the arresters of each phase is determined; and according to the interference current, the current component measurement values ​​of the arresters of each phase are compensated respectively. The above scheme determines the interference current used to characterize the influence on the leakage current by introducing the capacitive component measurement values ​​of the arresters of different phases, thereby compensating the current component measurement values ​​of the leakage current by the interference current, thereby improving the accuracy of the current component measurement values ​​of the leakage current, and further improving the accuracy of the leakage current.

[0150] In an optional embodiment, the interference current determination module 420 includes:

[0151] A reference capacitive component determination unit, configured to use at least one of the capacitive component measurement value of the A-phase arrester and the capacitive component measurement value of the C-phase arrester as a reference capacitive component measurement value;

[0152] The interference current determination unit is used to determine the interference current according to the reference capacitive component measurement value and the capacitive component measurement value of the B-phase lightning arrester.

[0153] In an optional embodiment, the interference current determination unit includes:

[0154] A first interference current determination subunit, configured to determine the interference current according to a difference between the reference capacitive component measurement value and the capacitive component measurement value of the B-phase arrester if the reference capacitive component measurement value is a single value;

[0155] The second interference current determination subunit is used to determine the difference between the capacitive component measurement value of the B phase arrester and each reference capacitive component measurement value if the reference capacitive component measurement value includes two values, and determine the interference current according to each difference result.

[0156] In an optional embodiment, the compensation data determination module 430 includes:

[0157] An interference component determination unit is used to determine the interference component of the arrester of each phase according to the interference current;

[0158] The compensation current determination unit is used to compensate the current component measurement value of the phase arrester according to the interference component of the phase arrester.

[0159] In an optional embodiment, the interference component includes a resistive interference component and a capacitive interference component, and the compensation current determination unit includes:

[0160] A resistive component compensation determination subunit, used to compensate the resistive component measurement value of the phase arrester according to the resistive interference component of the phase arrester;

[0161] The capacitive component compensation determination subunit is used to compensate the capacitive component measurement value of the phase arrester according to the capacitive interference component of the phase arrester.

[0162] In an optional embodiment, the compensation data determination module 430 further includes:

[0163] The compensation angle determination unit is used to determine the angle between the compensated leakage current and the operating voltage of the arrester of each phase according to the measured value of the current component after compensation corresponding to the arrester of that phase.

[0164] In an optional embodiment, the compensation angle determination unit includes:

[0165] The compensation angle determination subunit is used to determine the angle between the compensated leakage current and the operating voltage of the phase arrester according to the ratio of the measured value of the capacitive component of the phase arrester after compensation to the measured value of the resistive component of the phase arrester after compensation.

[0166] The leakage current compensation device can execute the leakage current compensation method provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing each leakage current compensation method.

[0167] In the technical solution of the present invention, the acquisition, storage and application of the current component measurement values ​​of the leakage current involved are in compliance with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0168] Embodiment 5

[0169] Figure 5 : is a structural schematic diagram of an electronic device for implementing a leakage current compensation method provided by Embodiment 5 of the present invention. The electronic device 50 is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0170] like Figure 5As shown, the electronic device 50 includes at least one processor 51, and a memory connected to the at least one processor 51 in communication, such as a read-only memory (ROM) 52, a random access memory (RAM) 53, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 51 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 52 or the computer program loaded from the storage unit 58 to the random access memory (RAM) 53. In the RAM 53, various programs and data required for the operation of the electronic device 50 can also be stored. The processor 51, the ROM 52, and the RAM 53 are connected to each other via a bus 54. An input / output (I / O) interface 55 is also connected to the bus 54.

[0171] A number of components in the electronic device 50 are connected to the I / O interface 55, including: an input unit 56, such as a keyboard, a mouse, etc.; an output unit 57, such as various types of displays, speakers, etc.; a storage unit 58, such as a disk, an optical disk, etc.; and a communication unit 59, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 59 allows the electronic device 50 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0172] The processor 51 may be a variety of general and / or dedicated processing components with processing and computing capabilities. Some examples of the processor 51 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 51 performs the various methods and processes described above, such as the leakage current compensation method.

[0173] In some embodiments, the leakage current compensation method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 58. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 50 via the ROM 52 and / or the communication unit 59. When the computer program is loaded into the RAM 53 and executed by the processor 51, one or more steps of the leakage current compensation method described above may be performed. Alternatively, in other embodiments, the processor 51 may be configured to perform the leakage current compensation method in any other suitable manner (e.g., by means of firmware).

[0174] Various embodiments of the systems and techniques described above herein may be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: being implemented in one or more computer programs, which may be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general programmable processor, which may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device. Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a dedicated computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may execute entirely on the machine, partly on the machine, partly on the machine, as a stand-alone software package and partly on a remote machine or entirely on the remote machine or server.

[0175] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0176] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0177] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0178] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0179] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0180] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A leakage current compensation method, characterized in that: include: Obtaining current component measurement values ​​of leakage current corresponding to lightning arresters of different phases; wherein the current component measurement values ​​include capacitive component measurement values ​​and resistive component measurement values; Determine the interference current between the arresters of each phase according to the measured values ​​of the capacitive components at different phases; Compensating the current component measurement values ​​of the arresters of each phase respectively according to the interference current; The method of determining the interference current between the arresters of each phase according to the capacitive component measurement values ​​at different phases includes: Using at least one of the capacitive component measurement value of the A-phase arrester and the capacitive component measurement value of the C-phase arrester as a reference capacitive component measurement value; Determining the interference current according to the reference capacitive component measurement value and the capacitive component measurement value of the B-phase arrester; Wherein, determining the interference current according to the reference capacitive component measurement value and the capacitive component measurement value of the B-phase arrester includes: If the reference capacitive component measurement value is a single value, the interference current is determined according to the difference between the reference capacitive component measurement value and the capacitive component measurement value of the B-phase arrester; If the reference capacitive component measurement value includes two values, then the difference between the capacitive component measurement value of the B-phase arrester and each of the reference capacitive component measurement values ​​is determined respectively, and the interference current is determined according to each difference result; The current component measurement values ​​of the arresters of each phase are compensated according to the interference current, including: For the arrester of each phase, determining the interference component of the arrester of this phase according to the interference current; Compensating the measured value of the current component of the phase arrester according to the interference component of the phase arrester; Wherein, the interference component includes a resistive interference component and a capacitive interference component; Correspondingly, compensating the current component measurement value of the phase arrester according to the interference component of the phase arrester includes: According to the resistive interference component of the phase arrester, compensating the resistive component measurement value of the phase arrester; According to the capacitive interference component of the phase arrester, the capacitive component measurement value of the phase arrester is compensated.

2. The method according to claim 1, characterized in that The method further comprises: For the arrester of each phase, the angle between the compensated leakage current and the operating voltage of the arrester of this phase is determined according to the measured value of the current component corresponding to the compensated arrester of this phase.

3. The method according to claim 2, characterized in that The step of determining the angle between the compensated leakage current and the operating voltage of the phase arrester according to the measured value of the compensated current component corresponding to the phase arrester comprises: According to the ratio of the measured value of the capacitive component of the phase arrester after compensation to the measured value of the resistive component of the phase arrester after compensation, the angle between the compensated leakage current and the operating voltage of the phase arrester is determined.

4. A leakage current compensation device, characterized in that: include: A data acquisition module, used to obtain current component measurement values ​​of leakage current corresponding to the arrester of different phases; wherein the current component measurement values ​​include capacitive component measurement values ​​and resistive component measurement values; The interference current determination module is used to determine the interference current between the arresters of each phase according to the capacitive component measurement values ​​under different phases; A compensation data determination module, used to compensate the current component measurement value of the arrester of each phase according to the interference current; Wherein, the interference current determination module includes: A reference capacitive component determination unit, configured to use at least one of the capacitive component measurement value of the A-phase arrester and the capacitive component measurement value of the C-phase arrester as a reference capacitive component measurement value; An interference current determination unit, used to determine the interference current according to the reference capacitive component measurement value and the capacitive component measurement value of the B-phase arrester; Wherein, the interference current determination unit includes: A first interference current determination subunit, configured to determine the interference current according to a difference between the reference capacitive component measurement value and the capacitive component measurement value of the B-phase arrester if the reference capacitive component measurement value is a single value; A second interference current determination subunit is used for determining the difference between the capacitive component measurement value of the B-phase arrester and each of the reference capacitive component measurement values ​​if the reference capacitive component measurement value includes two values, and determining the interference current according to each difference result; Wherein, the compensation data determination module includes: An interference component determination unit, configured to determine, for each phase of the arrester, the interference component of the arrester of that phase according to the interference current; A compensation current determination unit, used for compensating the current component measurement value of the phase arrester according to the interference component of the phase arrester; The interference component includes a resistive interference component and a capacitive interference component, and the compensation current determination unit includes: A resistive component compensation determination subunit, used to compensate the resistive component measurement value of the phase arrester according to the resistive interference component of the phase arrester; The capacitive component compensation determination subunit is used to compensate the capacitive component measurement value of the phase arrester according to the capacitive interference component of the phase arrester.

5. An electronic device, characterized in that: include: one or more processors; A memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the leakage current compensation method according to any one of claims 1 to 3.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the leakage current compensation method as described in any one of claims 1 to 3 is implemented.

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