Research on Load Monitoring Technology for Intelligent Low-Frequency and Low-Voltage Load Reduction Device
During the operation of the power grid,it is necessary to monitor low-frequency and low-voltage phenomena in a timely manner to ensure the stable operation of the power system.To this end,firstly,the Anhui power grid is taken as the object,and the intelligent pressure plate/outlet dual pressure plate is used to monitor the status of the tripping inlet and outlet pressure plates.Then,it is combined with the recognition results of the bus operation mode and the main transformer operation mode to determine the load lines that can be cut off.Finally,based on asymmetric real-time system architecture technology and back-propagation network,load prediction is implemented,and corresponding load cutting strategies are formulated.The results show that the important load guarantee rate of this method reaches over 98%,the load misoperation rate is only about 5%,and the frequency and voltage recovery time are both around 10 s,with a fast speed.In experiments with different sample sizes,the average recognition accuracy of this method is 95.47%,which has significant advantages.This monitoring technology can effectively monitor the load situation in power system and provide appropriate load shedding strategies to ensure stability of the power system.
low-frequency and low-voltage load reduction deviceload monitoringback-propagation network
万方数据
维普
