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Device and method for measuring DC resultant field

A technology of measuring devices and measuring methods, applied in the fields of electromagnetic field characteristics, signal transmission systems, instruments, etc., can solve problems such as not being able to fully reflect the real situation of the synthetic field strength, and achieve the effect of accurate measurement

Active Publication Date: 2007-12-26
STATE GRID ELECTRIC POWER RES INST
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Problems solved by technology

[0004] The purpose of the present invention is to provide a DC synthetic field measuring device that realizes multiple, simultaneous, and large-scale data measurement of the DC synthetic field strength, and transmits it to a PC in real time for statistical analysis, and truly reflects the size and distribution of the synthetic field strength. measurement method to overcome the deficiency that the existing single analog measurement device cannot fully reflect the real situation of the synthetic field strength

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  • Device and method for measuring DC resultant field
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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings and examples, but these examples should not be construed as limiting the present invention.

[0017] The invention comprises: at least one lower computer unit, upper computer unit and PC (Fig. 1), the communication module of each lower computer unit is connected with the communication module of the upper computer unit, and the single-chip microcomputer of the upper computer is connected with the PC. Described lower computer unit is made up of synthesis field sensor, signal processing circuit, single-chip microcomputer, communication module, A / D chip and power supply module, and the output end of synthesis field sensor is connected with signal processing circuit input end respectively, and the output end of signal processing circuit The other end of the A / D chip is connected to the single-chip computer, and the single-chip computer is connected to the communicatio...

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Abstract

A measurement device of DC combined field consists of at least one down-level computer unit, up-level computer unit and PC computer. It is featured as realizing communication separately with up-level computer unit by each set of down-level computer unit; connecting monolithic computer of up-level computer to PC computer; forming said down-level computer unit by combined field transducer, signal processing-circuit, monolithic computer, communication module, A / D chip and power support module.

Description

technical field [0001] The invention belongs to the field of electromagnetic environment of direct current power transmission and transformation engineering, and specifically relates to a measuring device and a measuring method for a direct current synthetic field. Background technique [0002] In recent years, the construction of DC transmission lines in my country has developed rapidly, and the electromagnetic environment around DC transmission lines has attracted more and more attention. Synthetic field is the main electromagnetic environment parameter of DC transmission lines and converter stations. With the development of environmental impact assessment of HVDC transmission projects in my country, the monitoring of synthetic field has become an important task. [0003] At present, there are no clear regulations on the measurement method of DC combined field in DC transmission projects at home and abroad. There is no manufacturer in China that produces DC synthetic fiel...

Claims

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Application Information

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IPC IPC(8): G08C17/00G08C19/00G01R29/08G01R29/10
Inventor 邬雄万保权张广洲张建功张业茂
Owner STATE GRID ELECTRIC POWER RES INST
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