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Iron core loosening vibration data acquisition method and system

A technology of vibration data and iron core looseness, which is applied in vibration testing, signal transmission systems, testing of machines/structural components, etc., can solve the problems of inability to take into account data transmission integrity and transmission efficiency, UDP transmission protocol packet loss, and unstable stability Strong and other problems, to achieve the effect of improving on-site detection efficiency, optimizing UDP transmission, and reliable and stable communication

Pending Publication Date: 2021-07-09
SICHUAN POWER EHV OVERHAUL
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the loose iron core requires high efficiency in collecting vibration data, the efficiency of the TCP / IP transmission protocol is slow, the UDP transmission protocol has the risk of packet loss, and the integrity and transmission efficiency of data transmission cannot be taken into account. It is to provide a method and system for collecting vibration data of iron core looseness, which solves the problem of low efficiency and poor stability caused by packet loss during the transmission process of vibration data collected by iron core looseness using UDP transmission protocol

Method used

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  • Iron core loosening vibration data acquisition method and system
  • Iron core loosening vibration data acquisition method and system
  • Iron core loosening vibration data acquisition method and system

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Embodiment

[0061] like figure 1 As shown, a method for collecting vibration data of iron core loosening includes steps: S1: Acquire the original signal of mechanical vibration; S2: The signal coupling unit couples the original signal of mechanical vibration into a voltage signal; S3: Condition the voltage signal into a differential signal through a differential amplifier Signal; S4: Perform analog-to-digital conversion on the differential signal to obtain a digital signal; S5: Divide the digital signal into several data packets according to the sampling depth and the length of the data packet, and determine the number of data packets; S6: For several data packets Packets are numbered in increments starting from 1, and several data packets are sorted according to the order of the number, and the number is used as the header of the data packet; S7: several sorted data packets are transmitted to the receiving end; S8: the receiving end receives Several data packets, analyze the number of th...

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Abstract

The invention discloses an iron core loosening vibration data acquisition method and system. In the prior art, the diagnosis of the loosening of an iron core in a transformer still has certain defects, during transmission, if a UDP (User Datagram Protocol) transmission protocol is adopted, packet loss is easy to occur, and if a TCP / IP (Transmission Control Protocol / Internet Protocol) transmission protocol is adopted, the transmission is stable, but the efficiency is low. The requirement for iron core loosening vibration signal collection is high, the efficiency needs to be guaranteed, meanwhile, the integrity in the transmission process needs to be guaranteed, and the efficiency is not effectively improved when packet loss occurs in the transmission process through a UDP transmission protocol in the prior art. According to the invention, data packets are numbered and sequenced, the data packets are transmitted, a receiving end analyzes header numbers of the data packets, whether the data packets are lost or not is judged by analyzing the total number and the numbers of the data packets, and retransmission is carried out if the data packets are lost, so that UDP transmission is optimized, the integrity of data transmission is ensured, and the transmission efficiency is considered.

Description

technical field [0001] The invention relates to the technical field of on-line monitoring of the status of power transmission and transformation equipment, in particular to a method and system for collecting vibration data of iron core looseness. Background technique [0002] The power transformer is the core equipment of the power grid and plays an important role in the safe and stable operation of the power system. The iron core and winding are the key parts of the transformer, and their tightness will gradually decrease with transportation, installation, aging and short-circuit impact, and even obvious core looseness and winding deformation may occur, which will affect the ability of the transformer to withstand short-circuit impact There is a huge threat and may cause a further drop in insulation strength. A transformer fault analysis conducted by manufacturers and the State Grid Corporation of China from 2000 to 2012 showed that faults caused by core looseness and wind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/02G01R31/62G08C17/02
CPCG01M7/025G01M7/022G01R31/62G08C17/02
Inventor 王红梅杨嘉丞汪鑫何良李雪峰张旭波邵帅肖启繁丁登伟汪锦
Owner SICHUAN POWER EHV OVERHAUL
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