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Smart power grid transmission line fault monitoring system and method

A transmission line and smart grid technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of large manpower, material resources, single type of fault detection, and online monitoring cannot be realized by line inspection methods, so as to improve accuracy , Improving the effect of real-time rapidity

Active Publication Date: 2013-12-04
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a smart grid transmission line fault monitoring system and method to solve the technical problems that the traditional line inspection method cannot realize online monitoring, requires a lot of manpower and material resources, low detection accuracy and single detection fault types

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  • Smart power grid transmission line fault monitoring system and method
  • Smart power grid transmission line fault monitoring system and method
  • Smart power grid transmission line fault monitoring system and method

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] like figure 1 As shown, the smart grid transmission line fault monitoring system includes sensor unit 1, signal conditioning circuit 2, DSP unit 3, ARM unit 4, GPRS module 5, keyboard 6, upper computer 7, LCD display 8, power module 9, first Reset circuit 10, first clock circuit 11, first storage circuit 12, second clock circuit 13, second storage circuit 14, second reset circuit 15; the output terminal of the sensor unit 1 and the input terminal of the signal conditioning circuit 2 connected, the output end of the signal conditioning circuit 2 is connected to the input end of the DSP unit 3, the output end of the DSP unit 3 is connected to the input end of the ARM unit 4, and the reset signal input end of the DSP unit 3 is connected to the first reset circuit The output end of 10 is connected, the clock input end of DSP unit 3 is conne...

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Abstract

The invention discloses a smart power grid transmission line fault monitoring system and method. The smart power grid transmission line fault monitoring system utilizes a modern embedded technology and adopts double central processing units (CPU), namely a structure that an advanced RISC machine (ARM) is matched with a digital signal processor (DSP). An ARM processor good at operating management type tasks is responsible for control of communication between general packet radio service (GPRS) and an upper computer and a man-machine interaction function, but the DSP applicable to operation of a digital signal processing algorithm is only responsible for operation of a fault diagnosis algorithm, improvement of data processing real-time rapidity of the monitoring system and improvement of fault monitoring accuracy. The smart power grid transmission line fault monitoring method utilizes a signal singular point confirming method by adopting a discrete wavelet transformation and modulus maximum judging method to process power grid transient state signals and improve the fault monitoring accuracy. The smart power grid transmission line fault monitoring system and method can achieve monitoring of short circuit, circuit disconnection and grounding faults and utilizes a GPRS network and the upper machine to achieve transmission line online fault monitoring.

Description

technical field [0001] The invention relates to a transmission line of a smart grid, in particular to a fault monitoring system and a fault diagnosis method for a transmission line of a smart grid, and belongs to the technical field of power supply and distribution equipment. Background technique [0002] In March 2010, Premier Wen Jiabao proposed "strengthening smart grid construction" in his government work report at the National Two Sessions. The following year, "promoting the construction of smart grid" was included in the national "Twelfth Five-Year Plan" and became a basic national strategy. This is an inevitable requirement for power resources in the rapid development of social and economic levels in the 21st century. According to the definition of the International Energy Conference, the smart grid, that is, the intelligence of the grid, is also called "grid 2.0". It is built on the basis of an integrated, high-speed two-way communication network, through the applic...

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Application Information

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IPC IPC(8): G01R31/02
Inventor 曾庆军张帝陈伟
Owner JIANGSU UNIV OF SCI & TECH
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