CN102072998A - Half structure type high voltage wireless data acquisition device - Google Patents
Half structure type high voltage wireless data acquisition device Download PDFInfo
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- CN102072998A CN102072998A CN2010105624126A CN201010562412A CN102072998A CN 102072998 A CN102072998 A CN 102072998A CN 2010105624126 A CN2010105624126 A CN 2010105624126A CN 201010562412 A CN201010562412 A CN 201010562412A CN 102072998 A CN102072998 A CN 102072998A
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Abstract
The invention relates to a half structure type high voltage wireless data acquisition device which comprises a half structure type low voltage current transformer, a power I/V voltage-stabilized power supply unit, a measurement unit and a wireless transmission unit, wherein the current transformer converts the current of a medium-high-voltage power grid circuit into two output paths: one path is open circuit output which serves as the input of the power I/V voltage-stabilized power supply unit, and the other path serves as the input sampling signal of the current measurement unit; the power I/V voltage-stabilized power supply unit converts the open circuit output voltage of the half structure type low voltage current transformer into the power supply for the operation of the entire device; the measurement unit conducts A/D conversion of the sampling current outputted from the half structure type low voltage current transformer and generates current, power and other parameter data; and the wireless transmission unit realizes wireless data exchange with peripheral equipment. The device is directly installed in a medium-high-voltage power grid circuit or a distribution transformer to realize power grid parameter measurement and acquisition and information transmission, dispenses with an external power supply, and conducts wireless data transmission.
Description
Technical field
The present invention relates to a kind of automatic measurement, data collector that is applied to high pressure, medium voltage network circuit and substation transformer, relate to a kind of primary side that is installed in high pressure, middle pressure, low voltage electric network circuit and substation transformer specifically and realize DATA REASONING and the harvester that electrical network parameter is measured, wireless data transmission function is monitored and had to the substation transformer operation conditions.Can be applicable to that high pressure, middle pressure, the monitoring of low voltage electric network circuit operational factor, the monitoring of substation transformer operational factor, distribution become, line (transformer, power network line, down with) decreases and calculates and the real-time monitoring of stealing.
Background technology
Power department all is to use mesohigh current transformer, mesohigh voltage transformer (VT) or combined type mesohigh mutual inductor on high pressure, medium voltage network circuit at present, electrical network parameter is converted to inserts instrument after the low-voltage and carry out the measurement and the data acquisition of electrical network parameter, realize high pressure, middle pressure, the monitoring of low voltage electric network circuit operational factor, the monitoring of substation transformer operational factor.Because traditional measurement pattern all is to measure after high pressure (more than the 10KV) is converted to low pressure (100V or 57.7V), suffers artificial change, destruction easily, stealing is easy to; The traditional measurement pattern will realize that distribution becomes, line loss is calculated then and must a cover measurement mechanism respectively be installed first and second; Mesohigh current transformer, mesohigh voltage transformer (VT) or the combined type mesohigh mutual inductor volume that the traditional measurement pattern is used is not easy to greatly install, Heavy Weight is wasted materials such as a large amount of copper, iron.
Summary of the invention
The objective of the invention is at present mesohigh electrical network, the technical deficiency of distribution transforming parameter measurement, a kind of new type auto measurement collecting transmitter is provided, realizes electrical network parameter measurement collection and information transmission on mesohigh power network line, the substation transformer to be used for being directly installed on.The enforcement of this device is adopted half slide structure, the outer power supply source of nothing, wireless data to send the measurement of realization electrical network parameter and is gathered and data transmission.
Technical scheme of the present invention is: a kind of half slide structure formula high-voltage radio data collector that is applied to high pressure, medium voltage network circuit and substation transformer, it comprises half slide structure formula low-voltage current mutual inductor, power I/V power supply unit of voltage regulation, measuring unit, wireless transmission unit.Half slide structure formula low-voltage current mutual inductor is two-way output with mesohigh power network line current conversion: the one tunnel is open circuit output, and it is as the input of power I/V power supply unit of voltage regulation; One tunnel input sample signal as current measuring unit; Power I/V power supply unit of voltage regulation is converted to the open circuit output voltage of half slide structure formula low-voltage current mutual inductor the power supply of supplying apparatus complete machine work; Measuring unit carries out the sample rate current of half slide structure formula low-voltage current mutual inductor output the A/D conversion and generates supplemental characteristics such as electric current, power; Wireless transmission unit realizes the wireless data exchange with external unit.
Above-mentioned half slide structure formula high-voltage radio data collector, it is further characterized in that the half slide structure formula low-voltage current mutual inductor that is installed on the mesohigh circuit, different with the closed homogeneous of routine mutual inductor unshakable in one's determination, it is non-closed split-type low-voltage current mutual inductor.
Above-mentioned half slide structure formula high-voltage radio data collector, it is further characterized in that and need not outer power supply source, half slide structure formula low-voltage current mutual inductor centering high-tension line load current is responded to, produce the open circuit output voltage, be converted to the device working power by the power I/V power supply unit of voltage regulation output voltage of will opening a way.
Above-mentioned half slide structure formula high-voltage radio data collector, further be characterised in that power I/V power supply unit of voltage regulation for using low-voltage, prevent that too small or slow liter of mesohigh line load electric current of mesohigh line load electric current from causing the device deadlock under the situation from recovering numerically controlled Switching Power Supply;
Above-mentioned half slide structure formula high-voltage radio data collector is characterised in that further power I/V power supply unit of voltage regulation adopts hardware frequency generator and software frequency generator to carry out the switching frequency of the synthetic output of logic high-frequency controling signal as the low-voltage switches power supply.Soft, hard two frequency generators are followed control.
Above-mentioned half slide structure formula high-voltage radio data collector, it is further characterized in that described wireless transmission unit adopts the double-direction radio transmitting-receiving, form by wireless receiving circuit and wireless transmission circuit, finish the two-way micro power consumption wireless data transmission of multiple spot any according to anti-data collision wireless network data transmission standard mechanism and low-voltage equipment.
Half slide structure formula high-voltage radio data collector of the present invention, directly non-closed split-type low-voltage current mutual inductor is closed up primary side at mesohigh power network line or substation transformer, realized high pressure, middle pressure, low voltage electric network circuit operational factor and the monitoring of substation transformer operational factor, compare with traditional mesohigh electrical network measurement pattern, its advantage is: device need not outer power supply source and adopts the wireless data transmission of carrying out, do not have any physical connection with secondary device, therefore can solve the insulation safety problem cheaply; Device adopts half slide structure, need not to cut off high-tension cable or busbar, can directly its non-closed splitted structure be closed up at mesohigh power network line or substation transformer primary side, installs very convenient; Device is installed in the high-pressure side but what use is low-voltage current mutual inductor, and specific volume is little mutually with traditional high-voltage mutual inductor, and consumptive material is few, can save materials such as a large amount of copper, iron; Built-in wireless transmission channel can be used as measurement point and directly inserts intelligent grid and Internet of Things, for intelligent grid provides mesohigh electrical network measurement data, and sends various real-time information for Internet of Things.
Description of drawings
Fig. 1 is the theory diagram of half slide structure formula high-voltage radio data collector of the present invention.
Fig. 2 is the embodiment synoptic diagram of half slide structure formula high-voltage radio data collector of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail as follows.
A typical intelligent electricity anti-theft system is by half slide structure formula high-voltage radio data collector, multifunctional electric energy meter, on-the-spot service terminal, front end processor, the WEB server, WEB interface client is formed, close up the half slide structure formula high-voltage radio data collector that is contained on the high-voltage power line up and down, communicate by letter with employing micro power consumption wireless between the on-the-spot service terminal, adopt RS485 to communicate by letter between multifunctional electric energy meter and the on-the-spot service terminal, on-the-spot service terminal and front end processor are realized exchanges data by GPRS or optical fiber, and each user calls survey together by access to the Internet WEB server, check the electric current of high-voltage fence circuit, the power correlation curve of data such as power and primary side and secondary side.
[embodiment]
Referring to Fig. 1, embodiments of the invention are made up of half slide structure formula low-voltage current mutual inductor, power I/V stabilized voltage supply, measuring unit, wireless transmission unit, wherein power taking is directly therefrom responded in the load current of high-voltage fence in half slide structure formula low-voltage current mutual inductor, two unit of power I/V power supply unit of voltage regulation, and application hardware frequency generator and software frequency generator carry out the synthetic gauge tap frequency of logic, low-voltage produces the power supply that supplies whole device work from recovering digital control principle; Current sample uses the sampling circuit output signal of half slide structure formula low-voltage current mutual inductor, exports to A/D and change after rail-to-rail operational amplifier conditioning; CPU calculates the A/D data that convert, and generates data such as electric current, power; Wireless transmission unit makes up anti-data collision wireless data transmission network, finishes the two-way micro power consumption wireless data transmission of multiple spot to any with low-voltage equipment, sends data such as electric current, power to the low pressure data receiver.
Though the present invention with preferred embodiment openly as above; but embodiment and accompanying drawing are not to be used for limiting the present invention, anyly are familiar with this skill person, without departing from the spirit and scope of the invention; from when doing various variations or retouching, belong to the present invention's protection domain equally.What therefore protection scope of the present invention should be defined with the application's claim protection domain is as the criterion.
Claims (7)
1. half slide structure formula high-voltage radio data collector that is applied to high pressure, medium voltage network circuit and substation transformer, it comprises half slide structure formula low-voltage current mutual inductor, power I/V stabilized voltage supply, current measuring unit, wireless transmission unit, it is characterized in that: described half slide structure formula low-voltage current mutual inductor is two-way output with mesohigh power network line current conversion: the one tunnel is open circuit output, and it is as the input of described power I/V power supply unit of voltage regulation; Another road is as the input sample signal of described current measuring unit; Described power I/V power supply unit of voltage regulation is converted to the open circuit output voltage of half slide structure formula low-voltage current mutual inductor the power supply of supplying apparatus complete machine work; Described current measuring unit carries out the sample rate current of half slide structure formula low-voltage current mutual inductor output the A/D conversion and generates supplemental characteristics such as electric current, power; Described wireless transmission unit realizes the wireless data exchange with external unit.
2. half slide structure formula high-voltage radio data collector according to claim 1 is characterized in that: described half slide structure formula low-voltage current mutual inductor is different with conventional closed homogeneous mutual inductor unshakable in one's determination, and it is non-closed split-type low-voltage current mutual inductor.
3. half slide structure formula high-voltage radio data collector according to claim 1, it is characterized in that: device need not outer power supply source, described half slide structure formula low-voltage current mutual inductor centering high-tension line load current is responded to, produce the open circuit output voltage, be converted to the device working power by the power I/V power supply unit of voltage regulation output voltage of will opening a way.
4. half slide structure formula high-voltage radio data collector according to claim 1, it is characterized in that: described power I/V power supply unit of voltage regulation is a low-voltage from recovering numerically controlled Switching Power Supply, prevents that too small or slow liter of mesohigh line load electric current of mesohigh line load electric current from causing the device deadlock under the situation.
5. half slide structure formula high-voltage radio data collector according to claim 1, it is characterized in that: described power I/V power supply unit of voltage regulation adopts hardware frequency generator and software frequency generator to carry out the switching frequency of the synthetic output of logic high-frequency controling signal as the low-voltage switches power supply, and soft, hard two frequency generators are followed control.
6. half slide structure formula high-voltage radio data collector according to claim 1, it is characterized in that: described wireless transmission unit adopts the double-direction radio transmitting-receiving, form by wireless receiving circuit and wireless transmission circuit, finish the two-way micro power consumption wireless data transmission of multiple spot any according to anti-data collision wireless network data transmission standard mechanism and low-voltage equipment.
7. according to the arbitrary described half slide structure formula high-voltage radio data collector of claim 1 to 6, it is characterized in that: device uses the full embedding of epoxy sealing technology, can adapt to normally operation in open-air high low temperature, the high humidity environment fully, guarantee that the wireless portion that seals can't be destroyed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105624126A CN102072998A (en) | 2010-11-29 | 2010-11-29 | Half structure type high voltage wireless data acquisition device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105624126A CN102072998A (en) | 2010-11-29 | 2010-11-29 | Half structure type high voltage wireless data acquisition device |
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| CN102072998A true CN102072998A (en) | 2011-05-25 |
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| CN2010105624126A Pending CN102072998A (en) | 2010-11-29 | 2010-11-29 | Half structure type high voltage wireless data acquisition device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608379A (en) * | 2011-11-23 | 2012-07-25 | 江苏通驰自动化系统有限公司 | Middle-high voltage digital mutual inductor |
| CN102903582A (en) * | 2012-08-21 | 2013-01-30 | 江苏云意电气股份有限公司 | Controller device of intelligent residual current circuit breaker |
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2010
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| CN1079304A (en) * | 1992-05-19 | 1993-12-08 | 华中理工大学 | A kind of AC current comparator |
| CN2624363Y (en) * | 2002-12-30 | 2004-07-07 | 东方电机控制设备有限公司 | Shaft urrent transformer |
| CN2874508Y (en) * | 2006-03-03 | 2007-02-28 | 成都市科仁特科技有限责任公司 | Electricity stealing monitor based on high voltage end current detection mode |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608379A (en) * | 2011-11-23 | 2012-07-25 | 江苏通驰自动化系统有限公司 | Middle-high voltage digital mutual inductor |
| CN102608379B (en) * | 2011-11-23 | 2014-01-08 | 南京因诺沃经济信息咨询有限公司 | Middle-high voltage digital mutual inductor |
| CN102903582A (en) * | 2012-08-21 | 2013-01-30 | 江苏云意电气股份有限公司 | Controller device of intelligent residual current circuit breaker |
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Application publication date: 20110525 |