Abnormal state automatic identification model and method for voltage measurement data
A voltage measurement and automatic identification technology, applied in the multi-dimensional voltage measurement data occasion, the automatic identification model field of the abnormal state of the voltage measurement data, can solve the problems of non-recognition, large identification dead zone, misidentification, etc. The effect of strong operability and high recognition accuracy
Active Publication Date: 2019-02-01
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +1
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[0006] The invention provides an automatic recognition model and method for the abnormal state of voltage measurement data, which solves the technical problems of inaccurate recognition methods and large recognition dead zones, which cause false recognition and non-recognition, and realizes fast and accurate online analysis 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 recognition model and method for the abnormal state of voltage measurement data, which solves the technical problems of inaccurate recognition methods and large recognition dead zones, which cause false recognition and non-recognition, and realizes fast and accurate online analysis The status of the voltage measurement data has the technical effects of high recognition accuracy, fast 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 are set forth in ...
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The invention discloses an abnormal state automatic identification model and a method for voltage measurement data. The model comprises: a data preprocessing module for excluding noise data; an optimal parameter matching module for matching an optimal combined input parameter of a density-based clustering algorithm DBSCAN; an abnormal state boundary solving module for solving a relative error maximum value of a normal data sample and serving as a determination value of the abnormal state boundary; an outlier voltage measurement data determination module for using an optimal combined parameterprovided by the optimal parameter matching module as an input condition of the density clustering algorithm DBSCAN, and separating a point that is clearly far from the central area, that is, separating an abnormal state point; and a voltage measurement data abnormal state determination module for using the abnormal state boundary provided by the abnormal state boundary solving module to complete the voltage measurement data abnormal state determination. According to the abnormal state automatic identification model and the method for the voltage measurement data, the technical effect that thestate of the voltage measurement data is quickly and accurately analyzed online, the recognition precision is high, the speed is high, and the operability is strong is realized.
Description
technical field [0001] The invention relates to the field of big data analysis of power systems, in particular to an automatic recognition model and method for abnormal state of voltage measurement data, which is 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 substation voltage measu...
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Login to View More 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