A model system and method for automatically identifying abnormal states of voltage measurement data
A voltage measurement and automatic identification technology, applied in the model system for automatic identification of abnormal state of voltage measurement data, and in the field of multi-dimensional voltage measurement data. Strong, high recognition accuracy and fast speed
Active Publication Date: 2020-10-09
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +1
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[0006] The invention provides an automatic identification model system and method for abnormal state of voltage measurement data, which solves the technical problems of inaccurate identification methods and large identification dead zone, resulting in misidentification and non-identification, and realizes fast and accurate online Analyzing the status of voltage measurement data has the technical effects of high recognition accuracy, fast speed and strong operability
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[0058] The invention provides an automatic identification model system and method for abnormal state of voltage measurement data, which solves the technical problems of inaccurate identification methods and large identification dead zone, resulting in misidentification and non-identification, and realizes fast and accurate online Analyzing the state of the voltage measurement data has the technical effects of high identification accuracy, high speed and strong operability.
[0059] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the condition of not conflicting with each other, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0060] In the following description, many specific details...
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The invention discloses a system and method for automatically identifying abnormal states of voltage measurement data, including: a data preprocessing module: used to eliminate noise data; an optimal parameter matching module: used to match the optimal value of the density clustering algorithm DBSCAN Combined input parameters; abnormal state boundary solving module: used to solve the relative maximum error value of normal data samples, and used as the judgment value of abnormal state boundary; outlier voltage measurement data judgment module: used to use the optimal parameter matching module to provide The optimal combination parameters of the density clustering algorithm DBSCAN are used as the input conditions to separate the points that are obviously far away from the central area, that is, to separate the abnormal points of the state; the abnormal state judgment module of the voltage measurement data: use the abnormal state provided by the abnormal state boundary solution module The boundary completes the judgment of the abnormal state of the voltage measurement data, realizes the fast and accurate online analysis of the state of the voltage measurement data, and has the technical effects of high recognition accuracy, fast speed and strong operability.
Description
technical field [0001] The invention relates to the field of big data analysis of electric power systems, in particular to a model system and method for automatically identifying abnormal states of voltage measurement data, which are applied to multi-dimensional voltage measurement data occasions satisfying Kirchhoff's voltage law. Background technique [0002] The effective transmission of voltage measurement data is the premise to ensure the safe and stable operation of the power system. The protection system uses voltage measurement data to monitor the operation of the power grid in real time to selectively isolate faults in the power grid; the automation system uses voltage as the monitoring object to perform dynamic reactive power compensation to keep the voltage of the power grid within the range of economic and reliable requirements; the metering system utilizes The voltage measurement data realizes electric energy metering. [0003] The transformation process of sub...
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IPC IPC(8): G01R19/00G06K9/62
CPCG01R19/0084G06F18/23213
Inventor 吴杰苏少春滕予非常晓青张仕民宋梁龙呈李小鹏冷代军刘明忠张泰
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST