Automatic monitoring system for main grid substation relay protection devices based on time series
The operation status of substation relay protection devices directly affects the safety of the main network.Therefore,in order to real-time grasp the operation status of substation relay protection devices,a time series based automation monitoring system for the main network substation relay protection devices is designed.The data acquisition lay in that front end of the system collects the time sequence data of the operation state of the substation relay protection device through the wireless sensor node,and transmits the time sequence data to the data processing and operation layer through the network interface;aft the time sequence data are aggregated by the data collection node,the layer processes abnormal data and repairs missing data based on the time sequence;Based on the stored time series data and the time series prediction model of time spectrum neural network,the upper business application layer pre-dicts the operation state of substation relay protection devices in the main network,and carries out automatic early warning of the state.The test results show that the system has good data processing performance,can delete abnormal data in the data,and achieve true data repair;The judgment coefficient results are all above 0.955,indicating good predictive performance;Able to obtain abnor-mal status results of the device and provide warnings based on predicted results.
time seriesmain network substation relayprotective devicesautomated monitoringtime series data processingautomated early warning