CN-121995301-A - Electric working condition detection method, system and storage medium of electric energy metering device

CN121995301ACN 121995301 ACN121995301 ACN 121995301ACN-121995301-A

Abstract

The application relates to the technical field of power system metering and detection, and discloses an electric working condition detection method, an electric working condition detection system and a storage medium of an electric energy metering device, wherein a self-checking timing value is preset, self-checking is triggered by a first set value in a factory detection stage, and accumulated reset times reach the standard to generate a self-checking normal mark; and responding to the self-checking signal, triggering a self-checking program through a self-checking action module, resetting a timing value or setting the timing value as an abnormal value according to the result, and alarming and prompting when the abnormality occurs. The application realizes full-period automation of the device, has no human intervention and self-checking, combines detection efficiency and monitoring accuracy, solves the problems that the traditional manual self-checking depends on professional operation and is difficult to be executed normally, and ensures the accuracy and reliability of electric energy metering operation.

Inventors

LIN XIAOYAN
JIANG ZHIPING
CHEN HANYONG
LUO ZHIWEI
HUANG ZHIQIANG
HUANG JINRUI
HU SHUANGSHUANG
HUANG YINGPING

Assignees

默鸿电气有限公司

Dates

Publication Date: 20260508
Application Date: 20260326

Claims (10)

1. The electric working condition detection method of the electric energy metering device is characterized by comprising the following steps of: The self-checking timing value is preset, and the self-checking timing value is used for timing when the electric energy metering device performs factory detection; The self-checking method comprises the steps of responding to a self-checking signal to call a preset self-checking action module to execute self-checking action, triggering preset self-checking program operation by the self-checking action, and obtaining a self-checking result generated by the self-checking program operation; Accumulating the number of times of resetting the self-checking timing value as a first resetting number, and generating a self-checking normal mark when the first resetting number of times is larger than a preset setting number of times; Acquiring an installation mark generated by the completion of the installation of the electric energy metering device after leaving the factory, and calling a second set value in response to the installation mark and a self-checking normal mark, wherein the second set value is larger than the first set value if the self-checking timing value is larger than the preset second set value; The self-checking action module is called to execute self-checking action in response to the self-checking signal, the self-checking action triggers self-checking program operation, and a self-checking result generated by the self-checking program operation is obtained; The number of times of accumulating the self-checking timing value to reset is a second reset number, a second set value is adjusted according to the second reset number, the larger the second reset number is, the larger the second set value is, the smaller the second reset number is, and the smaller the second set value is; And if the self-checking timing value is an abnormal value, carrying out self-checking abnormal alarm prompt.
2. The method for detecting the electrical condition of the electric energy metering device according to claim 1, wherein the step of performing self-checking abnormality alarm prompting further comprises the following sub-steps: Acquiring an inspection instruction corresponding to the self-inspection abnormal alarm prompt; and acquiring the triggering times of the self-checking program operation within a preset detection duration according to the checking instruction, and resetting the self-checking timing value if the triggering times are greater than the preset reference times.
3. The method for detecting an electrical condition of an electrical energy metering device of claim 1, further comprising the steps of: Acquiring positioning data of the electric energy metering device, dividing a plurality of setting areas according to the positioning data, wherein the maximum span in the setting areas is a preset distance span; Acquiring self-checking timing values of a plurality of electric energy metering devices positioned in a setting area; Calculating a difference value between the self-checking timing values as a timing difference value, and marking an electric energy metering device corresponding to the timing difference value as a synchronous timing device if the timing difference value is smaller than a preset timing reference difference value; taking the smallest self-checking timing value in the synchronous timing device as a synchronous timing value; and acquiring a synchronous instruction of the operation end, and synchronously setting a self-checking timing value of the synchronous timing device as a synchronous timing value in response to the synchronous instruction.
4. The method for detecting an electrical condition of an electrical energy metering device of claim 3, further comprising the steps of: Before the self-checking timing value is synchronously set in the setting area, calculating the discrete degree value of the self-checking timing value in the synchronous timing device based on a preset discrete value algorithm; And adjusting the distance span according to the discrete degree value, wherein the larger the discrete degree value is, the smaller the distance span is, and the smaller the discrete degree value is, the larger the distance span is.
5. The method for detecting an electrical condition of an electrical energy metering device of claim 3, further comprising the steps of: Before the self-checking timing value is synchronously set in the setting area, calculating the discrete degree value of the self-checking timing value in the synchronous timing device based on a preset discrete value algorithm; And adjusting the timing reference difference value according to the discrete degree value, wherein the larger the discrete degree value is, the smaller the timing reference difference value is, and the larger the discrete degree value is.
6. The method of claim 1, wherein the self-checking program operation comprises the steps of: controlling a built-in signal generation module to generate detection voltage and detection current, controlling a built-in acquisition change-over switch, and connecting the output end of the signal generation module into a metering sampling channel of the electric energy metering device; the metering unit sequentially performs real-time sampling, analog-to-digital conversion and power operation on the signals in the metering sampling channel to obtain a self-checking measured value; the main control unit compares the self-checking measured value with a preset standard theoretical value and outputs a self-checking result; If the self-checking measured value and the standard theoretical value are within the preset allowable error range, the self-checking result is passed, the electrical working conditions of the metering sampling channel, the metering unit and the main control unit are judged to be normal, otherwise, the self-checking result is not passed, and the electrical working conditions of the metering sampling channel, the metering unit and the main control unit are judged to be abnormal.
7. The method for detecting an electrical condition of an electrical energy metering device of claim 1, further comprising the steps of: the self-checking action module is set to be an electromagnetic relay module which executes self-checking signals to perform preset actions, and the electromagnetic relay module is used for supplying power to the signal generation module and changing the switching state of the change-over switch; when the self-checking action module is stopped, the change-over switch is controlled first, and then the signal generating module is powered.
8. The method for detecting an electrical condition of an electrical energy metering device of claim 1, further comprising the steps of: The self-checking action module is set to be a pulse generation module for executing the self-checking signal to generate a pulse width modulation signal; The signal generation module identifies the pulse width and the pulse frequency of the pulse width modulation signal, adjusts the voltage value of the detection voltage according to the pulse width, and adjusts the current value of the detection current according to the pulse frequency; and acquiring the power value calculated by the electric energy metering device in the working state, and regulating the pulse width modulation signal according to the power value, wherein the larger the power value is, the wider the pulse width is, the lower the pulse frequency is, the smaller the power value is, the narrower the pulse width is, and the higher the pulse frequency is.
9. An electrical condition detection system for an electrical energy metering device, comprising a processor in which the steps of the electrical condition detection method for an electrical energy metering device according to any one of claims 1 to 8 are performed.
10. A storage medium having stored therein a program which, when executed by a processor, implements the steps of the electric condition detection method of an electric energy metering device according to any one of claims 1 to 8.

Description

Electric working condition detection method, system and storage medium of electric energy metering device Technical Field The application relates to the technical field of metering and detection of electric power systems, in particular to an electric working condition detection method, an electric working condition detection system and a storage medium of an electric energy metering device. Background The electric energy metering device is used as a core basic appliance for electric energy metering, trade settlement and power grid operation monitoring in an electric power system, and the accuracy and reliability of the operation of the electric energy metering device are directly related to fairness and fairness of electric power market transaction, so that the vital interests of a power supply enterprise and an electricity user are affected. Along with the rapid development of a novel power system, the application scene of the electric energy metering device is becoming wider, and the validity of the electric energy metering data is directly determined by whether the electric working condition is stable or not. At present, the self-checking of the electrical working condition of the existing electric energy metering device is mainly realized by means of built-in standard signals, standard signal modules such as a reference voltage source and the like are generally integrated in the device, standard signals are output through the standard signal modules, and core electrical working condition parameters such as a sampling channel of the device, a metering chip calculation logic and the like are verified. The self-checking operation is to manually trigger the self-checking in a manner strictly specified by the device specification, and after the self-checking is manually triggered, the actually measured signal value acquired by the sampling channel is compared with the built-in standard signal value, so as to judge whether the electric working condition of the electric energy metering device is normal or not and whether the metering precision meets the requirement or not. However, the effective execution of the manual triggering self-checking operation is highly dependent on manual passive intervention, and related personnel are required to trigger the hardware simulation module to start the self-checking flow according to the specification. Because the use scene of the electric energy metering device is scattered, and most users do not have professional power equipment operation knowledge and skills, the self-checking triggering operation cannot be accurately executed. Disclosure of Invention In order to realize the active self-checking of the electric energy metering device, the application provides an electric working condition detection method, an electric working condition detection system and a storage medium of the electric energy metering device. In a first aspect, the present application provides a method for detecting an electrical condition of an electric energy metering device, which adopts the following technical scheme: An electric working condition detection method of an electric energy metering device comprises the following steps: The self-checking timing value is preset, and the self-checking timing value is used for timing when the electric energy metering device performs factory detection; The self-checking method comprises the steps of responding to a self-checking signal to call a preset self-checking action module to execute self-checking action, triggering preset self-checking program operation by the self-checking action, and obtaining a self-checking result generated by the self-checking program operation; Accumulating the number of times of resetting the self-checking timing value as a first resetting number, and generating a self-checking normal mark when the first resetting number of times is larger than a preset setting number of times; Acquiring an installation mark generated by the completion of the installation of the electric energy metering device after leaving the factory, and calling a second set value in response to the installation mark and a self-checking normal mark, wherein the second set value is larger than the first set value if the self-checking timing value is larger than the preset second set value; The self-checking action module is called to execute self-checking action in response to the self-checking signal, the self-checking action triggers self-checking program operation, and a self-checking result generated by the self-checking program operation is obtained; The number of times of accumulating the self-checking timing value to reset is a second reset number, a second set value is adjusted according to the second reset number, the larger the second reset number is, the larger the second set value is, the smaller the second reset number is, and the smaller the second set value is; And if the self-checking timing value is an abnormal value, carrying out self