Method and device for detecting repeated data in online monitoring data of power transformation equipment
A technology for repeating data and monitoring data. It is applied in the fields of electrical digital data processing, digital data information retrieval, special data processing applications, etc. It can solve the problem of less application, reduce detection time, avoid global data comparison, and reduce data storage. The effect of capacity requirements
Pending Publication Date: 2021-03-19
北京中恒博瑞数字电力科技有限公司
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However, these technologies are mostly used in the financial industry or other industries, and are relatively less used in the power industry, especially in the field of condition-based maintenance.
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[0016] Such as figure 1 As shown, the duplicate data detection method in the on-line monitoring data of this substation equipment comprises the following steps:
[0017] (1) For data dimensionality reduction, select global representative attributes for record matching and search for duplicate data; redundant attributes and invalid attributes are eliminated;
[0018] (2) When calculating the similarity of two data records, assign different specific weights to the selected comparison attributes;
[0019] (3) First segment the acquired monitoring data set, divide the collected data set into different windows, and then perform duplicate data detection on the data in each window according to the similarity calculation formula.
[0020] By adopting the duplicate data detection method based on the sliding window, the present invention can effectively eliminate the duplicate data in the monitoring data stream, reduce data redundancy, greatly reduce the demand for data storage capacit...
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The invention discloses a method and a device for detecting repeated data in online monitoring data of power transformation equipment, which can reduce data redundancy, improve detection speed, reducehardware storage waste and reduce occupied computing resources. The method for detecting the repeated data in the online monitoring data of the power transformation equipment comprises the followingsteps: (1) reducing the dimension of the data, selecting global representative attributes for recording and matching, searching the repeated data, and removing redundant attributes and invalid attributes; (2) when the similarity of the two data records is calculated, endowing different specific weights to the selected different comparison attributes; (3) segmenting the acquired monitoring data set, dividing the acquired data set into different windows, and performing repeated data detection on the data in each window according to a similarity calculation formula.
Description
technical field [0001] The invention relates to the technical field of power systems, in particular to a method for detecting repeated data in online monitoring data of power transformation equipment, and a device for detecting repeated data in online monitoring data of power transformation equipment. Background technique [0002] Substation equipment plays an important role in the operation of the entire power system, and its reliable operation can provide guarantee for the safety and performance of the power system. In order to ensure the safe and stable operation of power equipment, power grid companies usually use a large number of monitoring sensors to monitor various operating parameters of substation equipment to ensure that operation and maintenance personnel can detect early faults of transformers in time. However, in the actual application of the field, on the one hand, due to a large number of invalid monitoring sensors and the decrease in device accuracy, a large...
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CPCG06F16/215
Inventor 仇向东周庆捷张永浩黄辉付龙明魏晋军
Owner 北京中恒博瑞数字电力科技有限公司