CN205139238U - Electricity magnetic field intensity of distributing type transformer substation and equipotential current monitoring system - Google Patents

Electricity magnetic field intensity of distributing type transformer substation and equipotential current monitoring system Download PDF

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Publication number
CN205139238U
CN205139238U CN201520855392.XU CN201520855392U CN205139238U CN 205139238 U CN205139238 U CN 205139238U CN 201520855392 U CN201520855392 U CN 201520855392U CN 205139238 U CN205139238 U CN 205139238U
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China
Prior art keywords
equipotential
current monitoring
monitoring system
host computer
transformer substation
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CN201520855392.XU
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Chinese (zh)
Inventor
杨才明
李继红
张亮
金乃正
朱玛
裘愉涛
李勇
傅三川
秦建松
黄晓明
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State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
Shaoxing Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
Shaoxing Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, State Grid Zhejiang Electric Power Co Ltd, Shaoxing Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201520855392.XU priority Critical patent/CN205139238U/en
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Abstract

The utility model discloses an electricity magnetic field intensity of distributing type transformer substation and equipotential current monitoring system, including host computer, several electromagnetic field monitor cell, several equipotential electric current monitor cell and host computer, electromagnetic field monitor cell includes electric magnetic field intensity sensor, AD conversion module, DSP digital signal processing module, equipotential current monitoring unit includes equipotential current sensor, AD conversion module, DSP digital signal processing module, DSP digital signal processing module passes through RS485 module and links to each other with the host computer, and the host computer passes through the ethernet and links to each other with the host computer. Monitoring system pass through electromagnetic field monitor cell, equipotential electric current monitor cell realize real -time, connect the monitoring to to monitor that signal transmission gives that host computer, host computer show, storage and analysis etc. Make the power operating personnel in time know the electric magnetic field intensity and the equipotential electric current of electric power system transmission line and relevant power equipment or instrument.

Description

Distributed transformer substation electromagnetic intensity and equipotential current monitoring system
Technical field
The utility model relates to a kind of distributed transformer substation electromagnetic intensity and equipotential current monitoring system, belongs to electric power monitoring technical field.
Background technology
Transformer station's electromagnetic intensity is a key parameter in substation operation, and the electromagnetic field intensity of electrical power system transmission line and associate power equipment or instrument is a key of environmental protection.Understand the electromagnetic field intensity of transformer station under characteristic frequency, can propose for scheme in scientific research and environmental protection, effectively avoid transformer station on the impact of surrounding environment.
In view of this, the present inventor studies this, and develop a kind of distributed transformer substation electromagnetic intensity and equipotential current monitoring system specially, this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of distributed transformer substation electromagnetic intensity and equipotential current monitoring system, adopts distributed installation, has the features such as Monitoring Data is continuous, easy to operate.
To achieve these goals, solution of the present utility model is:
Distributed transformer substation electromagnetic intensity and equipotential current monitoring system, comprise main frame, several electromagnetic field monitoring means, several equipotential electric current monitoring means and host computer; Described electromagnetic field monitoring means comprises electromagnetic intensity sensor, and the A/D modular converter be connected with electromagnetic intensity sensor signal output terminal successively and DSP digital signal processing module, described equipotential electric current monitoring means comprises isopotential electrical flow sensor, and the A/D modular converter be connected with isopotential electrical flow sensor signal output part successively and DSP digital signal processing module, described DSP digital signal processing module is connected with main frame by RS485 module, and described main frame is connected with host computer by Ethernet.
As preferably, described electromagnetic intensity sensor comprises the detector diode of multiple mutual series connection, and multiple detector diode tandem compound becomes different oscillators, and measurement bandwidth is widened greatly, frequency response scope is 30-2000Hz, wherein the frequency response 0.5dB of 50-1000Hz.
As preferably, described isopotential electrical flow sensor adopts Luo Si coil.
As preferably, described isopotential electrical flow sensor adopts frequency 50Hz, measures range of current 0-10A, the Luo Si coil of precision 0.5%.
As preferably, described A/D modular converter adopts the A/D chip of 1M10 position.
As preferably, described DSP digital signal processing module comprises dsp chip, and the storage chip be connected with dsp chip.
As preferably, described dsp chip adopts model to be the dsp chip of dsPIC30f4011, and described storage chip adopts Intel 28F640J3cflash storage chip.
When above-mentioned distributed transformer substation electromagnetic intensity and the work of equipotential current monitoring system, electromagnetic intensity in electromagnetic intensity sensor and isopotential electrical flow sensor Real-Time Monitoring substation operation time domain and equipotential electric current, and change the electromagnetic intensity detected and isopotential electrical circulation into electric signal, send to preposition A/D modular converter; The electric signal received is converted to corresponding digital signal by A/D modular converter, and sends to DSP digital signal processing module; Maximal value in the dsp chip monitoring periods of DSP digital signal processing module, and maximal value is stamped time tag, send to storage chip to store, data are sent to main frame by RS485 module simultaneously; Described main frame carries out this locality classification to the data received and stores, and shown by host display, main frame will receive data upload to host computer SCADA database simultaneously, host computer more new data after getting uploading data, and file, file, analyzing and processing.
Distributed transformer substation electromagnetic intensity described in the utility model and equipotential current monitoring system, adopt multiple independently electromagnetic field monitoring means and equipotential electric current monitoring means, distributing installation in area to be monitored,
For avoiding decay in signals transmission and interference, each electromagnetic intensity sensor and isopotential electrical flow sensor are all with a preposition A/D modular converter, each band A/D modular converter all connects a DSP digital signal processing module, realize in real time by DSP digital signal processing module, connect monitoring, and sent to by monitor signal main frame, host computer to carry out showing, store and analysis etc., make work about electric power personnel understand electromagnetic intensity and the equipotential electric current of electrical power system transmission line and associate power equipment or instrument in time.
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is distributed transformer substation electromagnetic intensity and the equipotential current monitoring system block diagram of the present embodiment.
Embodiment
As shown in Figure 1, distributed transformer substation electromagnetic intensity and equipotential current monitoring system, comprise main frame 1, several electromagnetic field monitoring means 2, several equipotential electric current monitoring means 3 and host computer 4; The number of electromagnetic field monitoring means 2 and equipotential electric current monitoring means 3 specifically needs the equipment of monitoring, number of, lines and determining according to scene.Described electromagnetic field monitoring means 2 comprises electromagnetic intensity sensor 21, and the A/D modular converter 22 be connected with electromagnetic intensity sensor 21 signal output part successively, DSP digital signal processing module 23 and RS485 module 24, described equipotential electric current monitoring means 3 comprises isopotential electrical flow sensor 31, and the A/D modular converter 22 be connected with isopotential electrical flow sensor 31 signal output part successively, DSP digital signal processing module 23 and RS485 module 24, described electromagnetic field monitoring means 2 is all connected with main frame 1 by respective RS485 module 24 with equipotential electric current monitoring means 3, described main frame 1 is connected with host computer 4 by Ethernet.Electromagnetic field monitoring means 2 and equipotential electric current monitoring means 3 all carry+5V power supply, can give sensor power.
In the present embodiment, described electromagnetic intensity sensor 21 comprises the detector diode of multiple mutual series connection, and multiple detector diode tandem compound becomes different oscillators, and measurement bandwidth is widened greatly, frequency band range is 30-2000Hz, and wherein the frequency response of 50-1000Hz is 0.5dB.Described isopotential electrical flow sensor 31 adopts Luo Si coil, specifically can adopt frequency 50Hz, measures range of current 0-10A, the Luo Si coil of precision 0.5%.Described A/D modular converter 22 adopts the A/D chip of 1M10 position.Described DSP digital signal processing module 23 comprises dsp chip, and the storage chip be connected with dsp chip.Described dsp chip adopts model to be the dsp chip of dsPIC30f4011, and described storage chip adopts Intel 28F640J3cflash storage chip.Described RS485 module 24 adopts standard RS485RTU module.
The detection method of above-mentioned distributed transformer substation electromagnetic intensity and equipotential current monitoring system, comprises the steps:
Electromagnetic intensity in step 1), electromagnetic intensity sensor 21 and isopotential electrical flow sensor 31 Real-Time Monitoring substation operation time domain and equipotential electric current, and change the electromagnetic intensity detected and isopotential electrical circulation into electric signal, send to preposition A/D modular converter 22;
Step 2), the electric signal received is converted to corresponding digital signal, and sends to DSP digital signal processing module 23 by A/D modular converter 22;
The dsp chip of step 3), DSP digital signal processing module 23 according to per second be one-period, monitoring maximal value, and maximal value is stamped time tag, sends to storage chip to store, data is sent to main frame 1 by RS485 module 24 simultaneously;
Step 4), described main frame 1 carry out this locality classification to the data received and store, and shown by host display, main frame 1 will receive data upload to host computer SCADA database simultaneously, host computer 4 more new data after getting uploading data, and file, file, analyzing and processing.
Distributed transformer substation electromagnetic intensity described in the present embodiment and equipotential current monitoring system, adopt multiple independently electromagnetic field monitoring means 2 and equipotential electric current monitoring means 3, distributing installation is in area to be monitored, for avoiding decay in signals transmission and interference, each electromagnetic intensity sensor 21 and isopotential electrical flow sensor 31 are all with a preposition A/D modular converter 22, each band A/D modular converter 22 all connects a DSP digital signal processing module 23, realize in real time by DSP digital signal processing module 23, connect monitoring, and monitor signal is sent to main frame 1, host computer 4 shows, storage and analysis etc., work about electric power personnel are made to understand electromagnetic intensity and the equipotential electric current of electrical power system transmission line and associate power equipment or instrument in time.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present utility model.

Claims (7)

1. distributed transformer substation electromagnetic intensity and equipotential current monitoring system, is characterized in that: comprise main frame, several electromagnetic field monitoring means, several equipotential electric current monitoring means and host computer; Described electromagnetic field monitoring means comprises electromagnetic intensity sensor, and the A/D modular converter be connected with electromagnetic intensity sensor signal output terminal successively and DSP digital signal processing module, described equipotential electric current monitoring means comprises isopotential electrical flow sensor, and the A/D modular converter be connected with isopotential electrical flow sensor signal output part successively and DSP digital signal processing module, described DSP digital signal processing module is connected with main frame by RS485 module, and described main frame is connected with host computer by Ethernet.
2. distributed transformer substation electromagnetic intensity as claimed in claim 1 and equipotential current monitoring system, is characterized in that: described electromagnetic intensity sensor comprises the detector diode of multiple mutual series connection.
3. distributed transformer substation electromagnetic intensity as claimed in claim 1 and equipotential current monitoring system, is characterized in that: described isopotential electrical flow sensor adopts Luo Si coil.
4. distributed transformer substation electromagnetic intensity as claimed in claim 3 and equipotential current monitoring system, is characterized in that: described isopotential electrical flow sensor adopts frequency 50Hz, measures range of current 0-10A, the Luo Si coil of precision 0.5%.
5. distributed transformer substation electromagnetic intensity as claimed in claim 1 and equipotential current monitoring system, is characterized in that: described A/D modular converter adopts the A/D chip of 1M10 position.
6. distributed transformer substation electromagnetic intensity as claimed in claim 1 and equipotential current monitoring system, is characterized in that: described DSP digital signal processing module comprises dsp chip, and the storage chip be connected with dsp chip.
7. distributed transformer substation electromagnetic intensity as claimed in claim 6 and equipotential current monitoring system, it is characterized in that: described dsp chip adopts model to be the dsp chip of dsPIC30f4011, described storage chip adopts Intel 28F640J3cflash storage chip.
CN201520855392.XU 2015-10-29 2015-10-29 Electricity magnetic field intensity of distributing type transformer substation and equipotential current monitoring system Active CN205139238U (en)

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CN201520855392.XU CN205139238U (en) 2015-10-29 2015-10-29 Electricity magnetic field intensity of distributing type transformer substation and equipotential current monitoring system

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Application Number Priority Date Filing Date Title
CN201520855392.XU CN205139238U (en) 2015-10-29 2015-10-29 Electricity magnetic field intensity of distributing type transformer substation and equipotential current monitoring system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105242105A (en) * 2015-10-29 2016-01-13 国网浙江省电力公司绍兴供电公司 Distributed transformer station electromagnetic field intensity and equipotential current monitoring system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105242105A (en) * 2015-10-29 2016-01-13 国网浙江省电力公司绍兴供电公司 Distributed transformer station electromagnetic field intensity and equipotential current monitoring system and method

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