Branch identification and switch state monitoring device and method based on wideband carrier

Abstract

The invention discloses a branch identification and switch state monitoring device and method based on a wideband carrier. The device comprises a main control module with a micro controller, a branchidentification module, a power broadband carrier communication module, a metering module, a storage module, a human-machine interaction module and a power module. The branch identification module is configured to couple a characteristic current signal to a power line and parse the characteristic current signal received on the power line. The metering module is configured to acquire three-phase voltage and current signals inputted into the model and transmit current and voltage data to the main control module. The power broadband carrier communication module is used for communication connectionwith the remote terminal to realize data interaction between the remote terminal and the main control module. After installation of branch identification and switch state monitoring devices at all branch switch nodes of the court power supply network, automatic identification of the topology connection relationship of the court power supply network as well as on-line monitoring of the branch switch operation statuses is realized, thereby meeting the real-time monitoring requirement of the court power supply network.

Description

technical field [0001] The invention relates to a branch identification and switch state monitoring device and a branch identification and switch state monitoring method based on a broadband carrier. Background technique [0002] The power supply network of the low-voltage station area is the end of the power grid. Due to the large number of equipment and low automation level, there are many blind spots in management; especially the power supply equipment between the station area and the low-voltage users has always been in the blind spot of equipment monitoring. Due to the lack of effective online monitoring means, users are always aware of power outages, resulting in passive and disordered repair work. In the event of a power outage, due to the lack of the topological relationship of the power supply network in the station area and the current operating status of the power supply network in the station area, it is impossible to quickly and accurately locate the fault point...

AI Technical Summary

Problems solved by technology

[0002] The power supply network of the low-voltage station area is the end of the power grid. Due to the large number of equipment and low automation level, there are many blind spots in management; especially the power supply equipment between the station area and the low-voltage user has been in the equipment monitoring blind spot.

Due to the lack of effective online monitoring means, users are always aware of power outages, resulting in passive and disordered repair work

In the event of a power outage, due to the lack of the topological relationship of the power supply network in the station area and the current operating status of the power supply network in the station area, it is impossible to quickly and accurately locate the fault point and calculate the scope of the power outage, resulting in repeated and invalid attendance, affecting the efficiency of emergency repairs, and it is difficult to fundamentally improve User Satisfaction with Electricity

[0003] At present, the station area branch identification instrument on the market is an offline handheld device, which cannot be connected to the network to run online. It requires staff to arrive at the scene to control the device to complete the topology identification of the station area power supply network.

Due to the inability to monitor online in real time, when the power supply network in the station area changes, it is impossible to know

[0004] At present, most of the branch switches at all levels of the power supply network in the station area are non-intelligent switches, and there is no effective monitoring means, and it is impossible to know the switch status and measurement data such as voltage, current, power, and electricity.

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