CN-122001077-A - Parameter monitoring method, equipment and medium for power equipment

CN122001077ACN 122001077 ACN122001077 ACN 122001077ACN-122001077-A

Abstract

The application provides a parameter monitoring method, equipment and medium of power equipment, relating to the technical field of data processing, comprising the steps of obtaining real-time power parameters of the power equipment; judging whether the real-time power parameter has a first abnormality according to a rated threshold corresponding to the real-time power parameter, sending an abnormality alarm if the real-time power parameter is determined to have the first abnormality, determining a sudden change judging time period corresponding to the real-time power parameter if the real-time power parameter is determined to have no first abnormality, determining a sudden change amount corresponding to the real-time power parameter according to the sudden change judging time period, determining a sudden change amount judging threshold according to the historical power parameter, judging whether the power equipment has a second abnormality according to the sudden change amount judging threshold, and improving monitoring precision and operation safety.

Inventors

LUO SONGLIN
LIU HONG
WANG ZIWEN
CHEN JIAHUI
CHEN SHOUBIN
LAI WEIJIAN
ZHAI ZHUXIN
LI JINGHANG

Assignees

广东电网有限责任公司东莞供电局

Dates

Publication Date: 20260508
Application Date: 20260109

Claims (10)

1. A method for monitoring parameters of an electrical device, comprising: acquiring real-time power parameters of the power equipment; Judging whether the real-time power parameter has a first abnormality or not according to a rated threshold corresponding to the real-time power parameter; if the real-time power parameter is determined to have the first abnormality, an abnormality alarm is sent out; If the real-time power parameter is determined to have no first abnormality, determining an abrupt change judging time period corresponding to the real-time power parameter; determining the mutation amount corresponding to the real-time power parameter according to the mutation judgment time period; Determining a mutation quantity judgment threshold according to the historical power parameters; and judging whether the power equipment has a second abnormality according to the abrupt change judgment threshold.
2. The method of claim 1, wherein the determining the abrupt determination period corresponding to the real-time power parameter comprises: Determining a difference range of the mutation time; Determining a mutation judgment time starting point according to the difference range; Determining an abrupt change judging time end point according to the acquisition time of the real-time power parameters; And determining a mutation judgment time period corresponding to the real-time power parameter according to the mutation judgment time starting point and the mutation judgment time ending point.
3. The method of claim 2, wherein the determining the range of differences in mutation time comprises: obtaining a mapping relation between a preset real-time power parameter and a difference range, wherein in the mapping relation, the real-time power parameter is in direct proportion to the difference range; and determining the difference range of the abrupt change time according to the mapping relation and the real-time power parameter.
4. The method according to claim 1, wherein determining the mutation amount corresponding to the real-time power parameter according to the mutation determination period includes: acquiring all power parameter values in the abrupt change judging time period; determining a power parameter maximum value and a power parameter minimum value according to the power parameter value; calculating a first difference absolute value between the real-time power parameter and the maximum value of the power parameter; calculating a second difference absolute value between the real-time power parameter and the minimum value of the power parameter; and determining the larger one of the first difference absolute value and the second difference absolute value as the corresponding abrupt change of the real-time power parameter.
5. The method of claim 1, wherein determining the mutation level determination threshold based on the historical power parameter comprises: Acquiring a historical power parameter in a preset historical time period; determining a maximum value of the historical power parameter according to the historical power parameter; Determining a change abrupt change fixed value according to a threshold proportionality coefficient and the maximum value of the historical power parameter; Acquiring a preset fixed mutation fixed value; and determining the larger one of the variation mutation fixed value and the fixed mutation fixed value as the mutation amount judgment threshold.
6. The method according to any one of claims 1 to 5, wherein the determining whether the electrical device has the second abnormality according to the mutation amount determination threshold value includes: if the real-time power parameter is not greater than the abrupt change judgment threshold, determining that the power equipment is not abnormal; and if the real-time power parameter is larger than the abrupt change judgment threshold, determining that the power equipment has a second abnormality.
7. The method of claim 6, further comprising, after the determining that the power device has a second anomaly if the real-time power parameter is greater than the abrupt determination threshold: acquiring operation information of the power equipment with the second abnormality; Judging whether the power equipment has equipment switch shifting power-off and power-on operation or not according to the operation information in a preset operation time period; and if the power equipment does not have equipment switch shifting power-off and power-on operation, an abnormal alarm is sent out.
8. A parameter monitoring apparatus for an electrical device, comprising: the acquisition module is used for acquiring real-time power parameters of the power equipment; the first judging module is used for judging whether the real-time power parameter has a first abnormality or not according to the rated threshold corresponding to the real-time power parameter; the alarm module is used for sending an abnormal alarm if the real-time power parameter is determined to have the first abnormality; the first determining module is used for determining an abrupt change judging time period corresponding to the real-time power parameter if the real-time power parameter is determined to have no first abnormality; The second determining module is used for determining the mutation quantity corresponding to the real-time power parameter according to the mutation judging time period; the third determining module is used for determining a mutation judgment threshold according to the historical power parameters; And the second judging module is used for judging whether the power equipment has a second abnormality according to the mutation quantity judging threshold value.
9. The parameter monitoring device of the power equipment is characterized by comprising a memory and a processor; The memory stores computer-executable instructions; The processor executing computer-executable instructions stored in the memory, causing the processor to perform the method of any one of claims 1-7.
10. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to carry out the method of any one of claims 1-7.

Description

Parameter monitoring method, equipment and medium for power equipment Technical Field The present application relates to the field of data processing technologies, and in particular, to a method, an apparatus, and a medium for monitoring parameters of an electrical device. Background The power supply equipment is an important component of normal operation of a power supply system, and in a large number of power supply equipment substations, regulation and control integration is implemented for ensuring the safe operation of the substations, so that centralized monitoring is realized. The dispatcher needs to monitor the remote measurement values of the current, the active power and the like of the power equipment, and usually, in order to avoid the excessive values of the current, the active power and the like of the equipment, the limit value is set when the current, the active power and the like of the equipment exceed the limit of safe operation of the equipment, and an alarm is sent when the current, the active power and the like exceed the specified limit value in the monitoring process, so that the dispatcher intervenes in real time. Therefore, the development of a more accurate parameter monitoring method for the power equipment becomes a direction with application prospect. In the prior art, the current and active power changes of the power equipment are smooth curve changes, and in the daily monitoring process, the current or active power and the like are set to be specified limit values according to the current limit of the equipment, the specified limit values are exceeded, the equipment is overloaded, and the system sends out alarm reminding for adjustment. However, in the prior art, when the current of the power equipment is suddenly changed within the limit value range (such as equipment internal fault or system disturbance) based on the fixed threshold value, the system cannot actively identify abnormal fluctuation because the preset threshold value is not broken through, so that regulatory personnel cannot timely sense the hidden abnormality of the equipment, a monitoring blind area is formed, and the technical problems of low monitoring precision and poor operation safety exist. Disclosure of Invention The parameter monitoring method, the equipment and the medium of the power equipment are used for achieving the technical effects of improving the monitoring precision and the operation safety. In a first aspect, the present application provides a method for monitoring parameters of an electrical device, including: acquiring real-time power parameters of the power equipment; Judging whether the real-time power parameter has a first abnormality or not according to a rated threshold corresponding to the real-time power parameter; if the real-time power parameter is determined to have the first abnormality, an abnormality alarm is sent out; If the real-time power parameter is determined to have no first abnormality, determining an abrupt change judging time period corresponding to the real-time power parameter; determining the mutation amount corresponding to the real-time power parameter according to the mutation judgment time period; Determining a mutation quantity judgment threshold according to the historical power parameters; And judging whether the power equipment has a second abnormality according to the abrupt change judgment threshold. In one possible implementation manner, determining the abrupt change judgment period corresponding to the real-time power parameter includes: Determining a difference range of the mutation time; Determining a mutation judgment time starting point according to the difference range; Determining an abrupt change judging time end point according to the acquisition time of the real-time power parameters; and determining a mutation judgment time period corresponding to the real-time power parameter according to the mutation judgment time starting point and the mutation judgment time ending point. In one possible embodiment, determining the range of differences in mutation time includes: Acquiring a mapping relation between a preset real-time power parameter and a difference range, wherein in the mapping relation, the real-time power parameter is in direct proportion to the difference range; And determining the difference range of the abrupt change time according to the mapping relation and the real-time power parameter. In one possible implementation manner, determining the mutation amount corresponding to the real-time power parameter according to the mutation judgment time period includes: acquiring all power parameter values in the abrupt change judging time period; determining a power parameter maximum value and a power parameter minimum value according to the power parameter value; Calculating a first difference absolute value between the real-time power parameter and the maximum value of the power parameter; Calculating a second difference absolute value b