Fault positioning method for multi-source information of power distribution network master station
A multi-source information and fault location technology, applied in the field of automation, can solve the problems of low accuracy and long time to judge the fault interval, and achieve the effect of wide practicability
Active Publication Date: 2021-08-24
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology
[0005] The embodiment of the present invention provides a fault location method for multi-source information of the master station of the distribution network, which is used to solve the problem that there are multiple automatic terminals in the existing distribution network line, and the fault location is handled manually by the dispatcher, and the fault interval time is judged Long and inaccurate technical questions
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Embodiment 1
[0040] figure 1 It is a flow chart of the steps of the fault location method for the multi-source information of the distribution network master station described in the embodiment of the present invention, figure 2 It is a flowchart of a fault location method for multi-source information of a distribution network master station according to an embodiment of the present invention.
[0041] Such as figure 1 and figure 2 As shown, the embodiment of the present invention provides a fault location method for multi-source information of a master station of a distribution network, which is applied to a feeder of a distribution network provided with multiple automated terminals, including the following steps:
[0042] S10. Collect all signals uploaded by the automation terminal on the feeder after the fault.
[0043] It should be noted that, in the distribution network, after a fault occurs, each automation terminal on the feeder uploads its own electrical signal to the master s...
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The invention relates to a fault positioning method for multi-source information of a power distribution network master station. The method comprises the following steps: acquiring all signals uploaded by an automatic terminal on a feeder line after a fault occurs; and after the delay time T, enabling the automatic terminal on the feeder to no longer upload the signal, judging all the collected signals according to a first judgment condition, a second judgment condition, a third judgment condition and a fourth judgment condition in sequence, and obtaining a judgment result. According to the method, all the signals on the feeder line are collected, then the first judgment condition, the second judgment condition, the third judgment condition and the fourth judgment condition are adopted to sequentially judge all the collected signals, the judgment result is obtained, automatic fault positioning is achieved, the fault positioning recognition efficiency is high, and the judgment result is accurate. The fault positioning method for the multi-source information of the power distribution network master station can be suitable for fault positioning of feeder lines with a plurality of coexisting automation modes, is also suitable for positioning of various types of faults, and is wide in practicability.
Description
technical field [0001] The invention relates to the technical field of automation, in particular to a fault location method for multi-source information of a master station of a distribution network. Background technique [0002] The existing distribution network automation uses computers, networks and terminal equipment to realize the monitoring and remote control of power supply and distribution equipment, so that the distribution network can operate in a reliable and controllable state and provide users with stable power consumption. However, due to the influence of factors such as the operating environment of the distribution network, equipment quality, and grid fluctuations, faults in the distribution network occur from time to time. After a fault occurs in the distribution network, the distribution network automation equipment will collect the fault signal, which includes the relay protection signal of the switch, the switch opening signal, the fault blocking and the v...
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IPC IPC(8): G01R31/08
CPCG01R31/086
Inventor 侯祖锋陈建钿林敏洪杨叶昕缪辰宇丘冠新曹安瑛
Owner GUANGDONG POWER GRID CO LTD