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Traveling wave data acquisition and processing device

A data acquisition and processing device technology, applied in the direction of emergency protection circuit devices, fault locations, electrical components, etc., can solve the problems that data acquisition and data processing technology cannot be directly applied, and achieve the effect of reliable fault diagnosis basis

Inactive Publication Date: 2011-12-14
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, in order to realize the traveling wave protection technology, the existing data acquisition and data processing technology cannot be applied directly, and a traveling wave data acquisition and traveling wave data processing technology is needed

Method used

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  • Traveling wave data acquisition and processing device
  • Traveling wave data acquisition and processing device
  • Traveling wave data acquisition and processing device

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Embodiment Construction

[0030] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the present invention is not limited to the specific embodiments disclosed below limit.

[0032] figure 1 A schematic block diagram of a traveling wave data acquisition and processing device according to an embodiment of the present invention is shown.

[0033] like figure 1 As shown, a traveling wave data acquisition and processing device 100 includes: a traveling wave data acquisition module 102 and a traveling wave data processing module 104 .

[0034] The traveling wave data acquisi...

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Abstract

The invention provides a traveling wave data acquisition and processing device, which includes: a traveling wave data acquisition module and a traveling wave data processing module. Wherein, the traveling wave data acquisition module may include: a core control module, a second-order active low-pass filter module, a second-order passive band-pass filter module, a protection hardware startup module, a multiplexer switch module, and an A / D conversion module , and a dual-port RAM module. According to the technical solution of the present invention, it is possible to perform synchronous and high-speed data acquisition on current traveling waves and voltage traveling waves, and simultaneously perform real-time and high-speed digital signal processing on a large amount of traveling wave data, extract traveling wave data features and realize wavelet transform algorithms, for The realization of traveling wave protection technology provides hardware platform and software platform.

Description

technical field [0001] The invention relates to the field of power systems, and more specifically, to a traveling wave data acquisition and processing device in the field of relay protection. Background technique [0002] The current traveling wave and voltage traveling wave after a high-voltage transmission line fault contain a wealth of fault information, which can be used as a basis for fault detection. Traveling wave protection is not affected by current transformer saturation, power system oscillation, transmission line charging capacitor current, transmission line series capacitors and shunt reactors, and transition resistance. One of the important directions for the development of relay protection technology. The realization of traveling wave protection is inseparable from traveling wave signal acquisition and traveling wave signal processing technology. The voltage traveling wave and current traveling wave signal after a fault is a signal with a wide spectrum range...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/26G01R31/08
Inventor 董新洲王世勇施慎行
Owner TSINGHUA UNIV