Power distribution network terminal access method based on IEC61850 standard

Abstract

The invention relates to the field of power system and automation, in particular to a power distribution network terminal access method based on the IEC61850 standard. The method includes the following steps that (1) a power distribution terminal gets access to a port of a program monitoring UDP networking protocol, and data packages are broadcast, found and registered at regular intervals; (2) whether the correlation function of the power distribution terminal passes audits or not is judged; (3) access to the web service port of the power distribution terminal is carried out, and configuration information of the power distribution terminal is obtained; (4) a point table of measure points is generated from the configuration information; (5) the generated point table of the measure points is applied to a distribution automation system. The whole process of the power distribution network terminal access is automatic without manual intervention, namely the power distribution network terminal is of a plug-and-play type, workload of distribution automation and possibility of error occurrence are greatly reduced, implementation difficulty and implementation cost of the distribution automation are reduced, the construction of the distribution automation is promoted, and working efficiency and working correctness of the distribution automation are improved, so that the level of distribution network automation operation is improved, and outage cost is reduced.

Description

technical field [0001] The invention relates to the field of electric power system and automation thereof, in particular to a distribution network terminal access method based on the IEC61850 standard. Background technique [0002] The distribution terminal refers to the remote terminal unit of distribution automation, which is a general term for various remote monitoring and control units installed on the medium-voltage distribution network site, mainly including feeder terminals, station terminals, and distribution transformer terminals. Wait. Its functions include but not limited to the following: [0003] (1) Data collection: the terminal collects analog data such as line voltage, current, active power and reactive power, which is usually called telemetry function; it should be able to collect the current position of the switch, the completion of energy storage, the status of the terminal and other state quantities, usually It is called the remote signaling function. ...

AI Technical Summary

Problems solved by technology

[0012] 2) Metadata entry of terminal measurement points and control points: After completing the first step above, the distribution automation master station has been able to obtain the measurement point data of the distribution terminal, but the measurement data uploaded by the terminal does not include measurement points The metadata of the measurement point (that is, what electrical parameter does the data of this measurement point represent, what is the measurement range, and what is the measurement unit, these information are necessary to use the measurement data), so the distribution automation master station should use these Before collecting the data, it is necessary to establish the relationship between these measurement points and the electrical parameters in the master station system. This step is usually called checking the "point table" in the distribution automation work, and this process must be done manually. Completed, a terminal may have dozens of measurement points, and a distribution automation system may contain hundreds or thousands of terminals, so the workload of checking the point table is huge, and it is extremely error-prone in the process , and not easy to find, these errors will have a major impact on distribution automation work

[0015] Under the existing circumstances, the process of obtaining the metadata of the terminal measurement point and establishing the association with the electrical parameters is done manually, with a heavy workload and error-prone, which is a link in the distribution automation work that needs to be improved urgently

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