Power distribution DTU multi-interval comprehensive wave recording management system and method

Abstract

The invention provides a power distribution DTU multi-interval comprehensive wave recording management system. The method comprises the following steps: firstly, carrying out thread division design through channel data recording and waveform file storage according to different real-time requirements, and setting intermediate waveform data cache write-disk queues according to intervals to realize fault recording execution among multiple intervals and decoupling of intermediate recording data, and ensuring that normal operation of other functional modules on equipment is not influenced; and secondly, realizing mutual decoupling of storage and retrieval of the multi-interval historical fault information through a sub-queue multi-stage management technology of the multi-interval historical waveform data and the fault information report data, and finally realizing the purpose of completely independently managing the multi-interval fault information of the power distribution DTU. The invention also provides a corresponding power distribution DTU multi-interval comprehensive wave recording management method.

Description

A kind of distribution DTU multi-interval integrated wave recording management system and method technical field The invention belongs to a kind of power distribution DTU equipment, relate to a kind of multi-interval integrated wave recording management system and method. Background technique [0002] DTU is mainly used in ring network cabinets, switch stations, box-type substations, etc. in the distribution network. It can quickly and reliably realize fault location, isolation and power restoration of non-faulty sections of the distribution network. It is a new generation of distribution automation remote terminal device that integrates functions such as information and information. In practical engineering application, DTU can be connected to 16 lines at most, in order to realize the accurate detection of line faults by the main power distribution station [0003] Determining the location and rapid isolation, the relevant specifications specify that the fault informati...

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Problems solved by technology

[0003] In practical engineering applications, the DTU can be connected to up to 16 lines. In order to achieve accurate location and rapid isolation of line faults by the power distribution master station, the relevant specifications specify that the fault information of the DTU equipment must be independently managed according to the line interval; the fault information includes Recording channel record data COMTRADE files and other related fault information report data, to achieve independent management of fault information at different intervals, that is, DTU must consider that in the case of superimposed faults on the same line, the fault information will not be lost due to too late storage; at the same time, it must also consider When multiple lines fail at the same time, the fault information between the lines will not affect each other, resulting in abnormal coverage; finally, it must also be considered that the COMTRADE waveform file sent to the master station only contains channel data of the faulty line, and can be used for LCDs, etc. The man-machine interface and the external communication protocol module provide an independent fault information query interface by interval, and none of the existing technologies can meet the multi-interval fault recording requirements of DTU equipment with 16 lines

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