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Method of Online Detection of Leakage Current of UHVDC Arrester Using Cloud Technology

An ultra-high voltage DC and leakage current technology, applied in the direction of measuring current/voltage, instrument, measuring electricity, etc., can solve the problem that the leakage current of ultra-high voltage DC arrester cannot be accurately detected, and achieve simple structure, strong practicability, and withstand voltage capability. boosted effect

Active Publication Date: 2018-10-30
RED PHASE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a method for online detection of the leakage current of UHV DC arresters using cloud technology, and its main purpose is to overcome the defect that the existing leakage current alarm system cannot stably and accurately detect the leakage current of UHV DC arresters

Method used

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  • Method of Online Detection of Leakage Current of UHVDC Arrester Using Cloud Technology
  • Method of Online Detection of Leakage Current of UHVDC Arrester Using Cloud Technology
  • Method of Online Detection of Leakage Current of UHVDC Arrester Using Cloud Technology

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Embodiment 1

[0038] refer to figure 1. A system for online detection of leakage circuits of UHV DC arresters using cloud technology, comprising a detection device 1 arranged near the DC arrester, a data transmission device for transmitting the leakage current detection results obtained by the detection device 1, A data receiving device, a central monitoring device and a mobile terminal 3 . The data sending device is a public network signal transmitting unit 5 , and the data receiving device is a public network signal receiving unit 6 . The public network signal transmitting unit 5 and the public network signal receiving unit 6 can realize data transmission through the mobile public network (GSM network or GPRS network). The transmitting unit 5 is preferably a communication module of a GSM network or a GPRS network. The central monitoring device includes a background processor 40 and a storage device 41, the input end of the background processor 40 is connected to the data receiving devi...

Embodiment 2

[0062] refer to Figure 6 . This embodiment is substantially the same as the implementation of Embodiment 1, the difference is that: the data sending device includes a radio frequency signal transmitting unit 50, a frequency modulation forwarding unit 51 and a dual-mode communication unit 52 connected in sequence, and the data receiving The device is the public network signal receiving unit 6 connected to the output end of the dual-mode communication unit 52 .

[0063] Adopting the above settings can make this embodiment not only transmit the circuit detection value to the central monitoring device in the range covered by the public network, but also pass the radio frequency signal transmitting unit and the frequency modulation forwarding unit in the area where there is no public network signal. In cooperation, the lightning strike information is first sent to a dual-mode communication unit set within the coverage of the public network, and then transmitted to the central mon...

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Abstract

The invention provides an ultrahigh voltage DC lightning arrester leakage current online detection method by using a cloud technology. The following steps are respectively completed by using a detection system: a. whether signal acquisition of current is performed is judged; b. signal acquisition of current is performed; c. the acquired signals are processed and then current value data are formed and outputted; d. the acquired current data are wirelessly transmitted to a central monitoring device to be summarized; and e. the central monitoring device displays the current data and allocates and transmits the current data to the mobile terminals of corresponding lightning arrester managers simultaneously. Online acquisition of the microampere order of magnitude of weak circuit signals can be performed, and change of leakage current, harmonic wave and static electricity in the DC lightning arresters can be monitored anytime via the central monitoring device by depending on the cloud technology so that damage and casualties of buildings and people and animals can be effectively eliminated, and the service life of the lightning arresters can be prolonged.

Description

technical field [0001] The invention relates to a state detection technology of an UHV DC line arrester, in particular to a method for online detection of the leakage current of an UHV DC line arrester using cloud technology. Background technique [0002] With the rapid development of my country's economy, the demand for electricity is growing rapidly. However, my country has the natural characteristics that the distribution of power resources does not match the load center area. It is necessary to use long-distance and large-capacity transmission lines to improve the contradiction between power supply and demand. "West to East Power Transmission", Projects such as "North-South Mutual Supply" are the main deployment schemes at this stage, and UHV DC transmission technology is the specific implementation technical means. [0003] DC power transmission converts AC power into DC power through a converter, then sends it to the power receiving end through a DC transmission line, c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/00G01R31/02
Inventor 邓敏袁愿陈耀高郭翔李文斐蔡怡然
Owner RED PHASE INC