Assistant Terminal unit applied to Distribution Automation System and Method for Estimating Fault Location and Restoration

摘要

The present invention provides an auxiliary terminal device for drastically shortening the recovery time by establishing a network for recovery only by using a mobile communication network in the event of a failure of a distribution system, and providing a method of identifying and recovering a failure location of a distribution system.;The present invention is applied to each distribution automation RTU of the distribution automation system, and is connected to the communication line between the distribution automation RTU and the central control unit through a serial communication interface module in series to monitor the signal on the communication line A device comprising: downloading and storing recovery operation information from the auxiliary central control device; When a periodic signal is sent to the distribution automation RTU and periodically asked whether there is a fault current experience or when a fault occurs or a report of a fault current experience is reported, a fault location is confirmed by communicating with other auxiliary terminal devices; Perform a recovery operation according to the recovery operation information downloaded from the auxiliary central control unit before failure, and transmit the recovery operation information to the other auxiliary terminal device using the mobile communication network to control the opening and closing state of the corresponding distribution automation RTU. It is characterized by comprising an intelligent module for performing the recovery operation.;Distribution system, distribution automation system (DAS), fault recovery, RTU for distribution automation