Induced voltage verification method and device of high-frequency current sensor and computer equipment

Abstract

The invention relates to an induced voltage verification method and device of a high-frequency current sensor, computer equipment, a computer readable storage medium and a computer program product. The method comprises the steps of performing a simulation test on a to-be-verified high-frequency current sensor according to a feature set of an electromagnetic interference signal, and obtaining an actual induced voltage value of the to-be-verified high-frequency current sensor; obtaining a deviation value between the actual value of the induced voltage and the standard value of the induced voltage; in the scene of the simulation test, characteristic parameters of real-time electromagnetic interference signals of the high-frequency current sensor to be verified are obtained, and the similarity between the characteristic parameters of the real-time electromagnetic interference signals and the characteristic set of the electromagnetic interference signals is calculated; and adjusting the deviation value according to the similarity, and verifying the induced voltage of the to-be-verified high-frequency current sensor by using the adjusted deviation value. By adopting the method, the induced voltage can be verified under the condition of considering external electromagnetic interference, so that the accuracy of a verification result is improved.

Claims

1. A method for calibrating the induced voltage of a high-frequency current sensor, characterized in that: The method comprises: Constructing a feature set of electromagnetic interference signals, and performing a simulation test on a high-frequency current sensor to be verified based on the feature set of electromagnetic interference signals to obtain an actual value of an induced voltage of the high-frequency current sensor to be verified; Obtaining a deviation between the actual induced voltage value and the standard induced voltage value; In a simulation test scenario, characteristic parameters of a real-time electromagnetic interference signal of a high-frequency current sensor to be verified are obtained, and similarity between the characteristic parameters of the real-time electromagnetic interference signal and a feature set of the electromagnetic interference signal is calculated; The deviation value is adjusted according to the similarity, and the induced voltage of the high-frequency current sensor to be verified is verified using the adjusted deviation value.

2. The method according to claim 1, characterized in that The constructing of the feature set of the electromagnetic interference signal includes: Obtain historical electromagnetic interference signals from high-frequency current sensors; Analyze and obtain signal position information, skewness and kurtosis of historical electromagnetic interference signals of high-frequency current sensors; A feature set of the electromagnetic interference signal is constructed according to the signal position information, skewness and kurtosis.

3. The method according to claim 2, characterized in that The step of performing a simulation test on the high-frequency current sensor to be verified based on the characteristic set of the electromagnetic interference signal to obtain an actual value of the induced voltage of the high-frequency current sensor to be verified includes: Adjusting parameters of an interference signal generator according to the characteristic set of the electromagnetic interference signal, wherein the parameters of the interference signal generator include signal frequency, signal amplitude and signal waveform; Adjust the position of the interference signal generator so that the distance and position relationship between the interference signal generator and the high-frequency current sensor to be calibrated meet the preset requirements; Start the signal generator to perform a simulation test, apply the simulated electromagnetic interference signal to the test environment and act on the high-frequency current sensor to be calibrated, and measure the actual value of the induced voltage of the high-frequency current sensor to be calibrated.

4. The method according to claim 1, wherein The calculation formula of the similarity is: Among them, T i represents the similarity between the characteristic parameters of the real-time electromagnetic interference signal and the feature set of the electromagnetic interference signal, S represents the skewness of the characteristic parameters of the real-time electromagnetic interference signal, K represents the kurtosis of the characteristic parameters of the real-time electromagnetic interference signal, S ki represents the skewness of the feature set of the i-th group of electromagnetic interference signals, K ui Represents the kurtosis of the feature set of the i-th group of electromagnetic interference signals.

5. The method according to claim 1, wherein The adjusting the deviation value according to the similarity includes: According to the maximum value of the similarity, the deviation value of the feature set of the corresponding group of electromagnetic interference signals is determined, and the deviation value is compensated and adjusted according to the compensation coefficient. The calculation formula of the compensation coefficient is: Among them, U std is the standard value of the induced voltage, U meas is the actual value of the induced voltage.

6. The method according to claim 2, characterized in that The calculation formulas for the skewness and kurtosis are as follows: Among them, x i is the amplitude of the electromagnetic interference signal, is the mean of the amplitude, s is the standard deviation, skewness indicates the symmetry of the electromagnetic interference signal, and kurtosis indicates the sharpness of the electromagnetic interference signal.

7. An induced voltage calibration device for a high-frequency current sensor, characterized in that: The device comprises: A data acquisition module is used to construct a feature set of electromagnetic interference signals, and to perform a simulation test on the high-frequency current sensor to be verified based on the feature set of the electromagnetic interference signals to obtain the actual value of the induced voltage of the high-frequency current sensor to be verified; A calculation module, configured to obtain a deviation between the actual induced voltage value and the standard induced voltage value; The calculation module is further used to obtain characteristic parameters of the real-time electromagnetic interference signal of the high-frequency current sensor to be verified in the simulation test scenario, and calculate the similarity between the characteristic parameters of the real-time electromagnetic interference signal and the feature set of the electromagnetic interference signal; The voltage verification module is used to adjust the deviation value according to the similarity, and use the adjusted deviation value to verify the induced voltage of the high-frequency current sensor to be verified.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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