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Real-time on-line monitoring device for power-frequency electromagnetic data

A technology of power frequency electromagnetic and monitoring device, applied in the direction of measurement device, electromagnetic field characteristics, measurement of electrical variables, etc., can solve the problem of large induction error, and achieve the effect of reducing the introduction error, solving the large interference error and increasing reliability.

Inactive Publication Date: 2013-04-17
SOUTHEAST UNIV +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

If an incoming cable is used to realize automatic charging, the incoming charging cable will introduce a large induction error when it is not working, and the maximum can be as high as several hundred times. When the local field value is small, the introduced error will cover the local field value. Phenomenon

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  • Real-time on-line monitoring device for power-frequency electromagnetic data
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Embodiment Construction

[0025] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] refer to figure 1 , is a schematic diagram of the main structure of the power frequency electromagnetic data real-time on-line monitoring device of the present invention, including a power frequency electromagnetic data acquisition unit 1, a time synchronization unit 2, a data processing unit 3, a power supply system 4, a main controller 5 and a display unit 6.

[0027] Cooperate figure 2 As shown, the power frequency electromagnetic data acquisition unit 1 includes a high precision power frequency electromagnetic sensor 101, a large capacity battery 102, a power management module 103 and at least two physical isolators 104, wherein the power management module 103 includes a DC / DC Converter 103-1 and unidirectional diode 103-2;...

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Abstract

Disclosed is a real-time online monitoring device for an electromagnetic environment, which comprises a main controller (5), an acquisition unit (1) for power frequency electromagnetic data, a time synchronization unit (2), a data processing unit (3) and a power system (4); the acquisition unit (1) for power frequency electromagnetic data comprises a high-accuracy power frequency electromagnetic sensor (101), a high-capacity battery (102), a power managing module (103) which comprises a DC / DC converter (103-1) and a unilateral diode (103-2), and at least two physical isolators (104); the physical isolators (104) are connected successively, with an input end thereof connected to the power system (4) and an output end connected to the positive pole of the unilateral diode (103-2). The negative pole of the unilateral diode (103-2) is connected to the DC / DC converter (103-1) and the high-capacity battery (102), and the output end of the DC / DC converter (103-1) is connected to a power input end of the high-accuracy power frequency electromagnetic sensor (101), which high-accuracy power frequency electromagnetic sensor (101) is also connected to the main controller (5) and the high-capacity battery (102). The device can achieve a long-period power supply and automatic charging for the high-accuracy power frequency electromagnetic sensor, and can effectively shield the effect on the measuring result of the switching-in of power lines.

Description

technical field [0001] The invention belongs to the field of industrial frequency electromagnetic field environment monitoring, and in particular relates to a device for collecting electromagnetic environment data around a transmission and transformation station project. Background technique [0002] In recent years, people pay more and more attention to electromagnetic interference and electromagnetic environment problems in power systems, and the ecological effects of power frequency electromagnetic fields have always been the focus of attention. The public's misunderstanding of electromagnetic pollution has caused unnecessary psychological panic, and thus they have a strong opposition to the construction of transmission and transformation stations around them, which has caused great resistance to the construction of transmission and transformation station facilities. Incidents happen frequently. The unnecessary direct consequence of this phenomenon is that the construc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/08
CPCG01R29/0857G01R29/0871
Inventor 黄学良谭林林钱朝阳张德进周赣柏杨陈楷王春宁
Owner SOUTHEAST UNIV
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