CN109917168A - A kind of laser powered sensor high-speed measuring system and method - Google Patents
A kind of laser powered sensor high-speed measuring system and method Download PDFInfo
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- CN109917168A CN109917168A CN201711323721.6A CN201711323721A CN109917168A CN 109917168 A CN109917168 A CN 109917168A CN 201711323721 A CN201711323721 A CN 201711323721A CN 109917168 A CN109917168 A CN 109917168A
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- 238000000034 method Methods 0.000 title abstract description 7
- 230000011664 signaling Effects 0.000 claims abstract description 25
- 230000001681 protective effect Effects 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000012546 transfer Methods 0.000 claims description 7
- 239000013307 optical fiber Substances 0.000 claims description 6
- 238000011282 treatment Methods 0.000 claims description 6
- 238000000691 measurement method Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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Abstract
The step of present invention discloses a kind of laser powered sensor high-speed measuring system and method, and system includes mutual inductor, remote signaling acquisition module, combining unit, method is: mutual inductor exports analog quantity to remote signaling acquisition module；Remote signaling acquisition module carries out analog to digital conversion, digital processing and electro-optical conversion to signal, and the form that tested analog signal is converted to digital optical signal is exported, combining unit is transferred to；Digital signal is transmitted to protective device by combining unit.This technical solution utilizes the output signal of the remote signaling acquisition module in-site collecting electronic mutual inductor based on laser power supply, and transmission is digital signal, and by the data processing of combining unit, delay is less than 100 μ s.
Description
Technical field
The invention belongs to high-voltage dc transmission electrical domain, in particular to a kind of laser powered sensor high-speed measuring system and method.
Background technique
DC grid can realize multiple AC network subregion interconnections, be the important solution party for constructing interconnected power network interconnection
Case, direct current voltage measuring device are the key equipments for guaranteeing power grid reliability service, and the stable operation of power grid depends on direct current
Current-voltage measurement device protects equipment for direct current control and provides fast and accurately primary current, information of voltage, general to require in 100 μ s
Interior action message.Insulating requirements of the primary system high-pressure side mutual inductor due to insulated platform over the ground, all analog quantity (electric currents to be measured
Amount and voltage) it needs to be converted to digital quantity and is sent to ground, due to primary equipment dispersed placement, each mutual inductor configures one
Photo-translating system, combining unit need that protective device will be supplied to after several transducer signal merging treatments.
A kind of group prejudice Fig. 1 of laser powered sensor high-speed measuring system mainly includes distal end acquisition module, combining unit, guarantor
Protection unit 3 is most of.The delay of acquisition system mainly has following source, and mutual inductor and distal end acquisition module first is mounted on once
High-pressure side, all devices and ground are without electrical link.Therefore the analog quantity of its measuring device must be converted into digital quantity optical signal
It is transferred to the control protective unit on ground.But consider the limitation of system power supply mode, it is desirable that acquisition system is in high pressure primary side
The power consumption of equipment want low.But since primary equipment physical location disperses, multi-analog sampled data coding is sent to merging
Unit needs to restore coded data in combining unit side, merges after obtaining the sampled value of every road analog quantity.Due to the number of multichannel
Additional delay is necessarily introduced according to conversion, needs a kind of combining unit data processing method to reduce protective device and obtains prolonging for signal
When.
Summary of the invention
The purpose of the present invention is to provide a kind of laser powered sensor high-speed measuring system and method, can survey in laser powered sensor
It measures and realizes delay less than 100 μ s under system architecture.
In order to achieve the above objectives, solution of the invention is:
A kind of laser powered sensor high-speed measuring system, including mutual inductor, remote signaling acquisition module, combining unit, wherein mutually
Sensor is to measure the voltage and current signal of Primary Conductor and export analog signals；The analog signals are also through remote signaling
Acquisition module is changed into digital signal, accesses the combining unit, protective device is accessed to after combining unit；The merging
Unit use directly adopts the data processing mechanism to direct transfer and the digital signal received is transmitted to protective device after merging treatment.
Further, after the combining unit receives data packet, the data packet is examined, digital signal collected
It is transmitted to corresponding receiving end by former format, the receiving end responds after receiving data.
Further, holohedral symmetry direct current current divider, symmetrically matched wideband is straight for capacitance-resistance parameter using decoupling for the mutual inductor
Flow point depressor.
Further, it is connected between the remote signaling acquisition module and combining unit with optical fiber.
The present invention also provides a kind of measurement methods of laser powered sensor high-speed measuring system, include the following steps:
Step 1, mutual inductor applies analog quantity to the analog input port of remote signaling acquisition module；
Step 2, analog signals are converted to digital signal by remote signaling acquisition module, are transferred to combining unit；
Step 3, the digital signal that remote signaling acquisition module transmits is used and directly adopts the data processing to direct transfer by combining unit
Mechanism is transmitted to protective device after merging treatment, i.e., after the described combining unit receives data packet, the data packet is examined
It tests, digital signal collected is transmitted to corresponding receiving end by former format, and the receiving end responds after receiving data.
Further, in the step 1, mutual inductor exports step signal.
Further, in the step 2, the digital signal of remote signaling acquisition module output is transferred to merging by optical fiber
Unit.
After adopting the above scheme, the present invention directly adopts the data processing to direct transfer by using short delay mutual inductor, combining unit
And transmission technology, realize the ultrashort delay of direct-current measuring device and the parallel output of multichannel data with different rate, DC control
Protect the application demand of equipment.
Detailed description of the invention
Fig. 1 is a kind of simplified schematic diagram of laser powered sensor high-speed measuring system；
Fig. 2 is a kind of integrated stand composition of laser powered sensor high-speed measuring system；
Fig. 3 is a kind of delay composition figure of laser powered sensor high-speed measuring system.
Specific embodiment
Below with reference to attached drawing, technical solution of the present invention is described in detail.
As shown in Figure 1 and Figure 2, the present invention provides a kind of laser powered sensor high-speed measuring system, and mutual inductor is to export analog quantity
Signal, the analog signals are from Primary Conductor；The analog signals are also changed into number through remote signaling acquisition module
Word signal accesses the combining unit, protective device is accessed to after combining unit.
In the present embodiment, mutual inductor is decoupling holohedral symmetry direct current current divider, capacitance-resistance parameter symmetrically matched wideband direct current
Divider exports after once applying step signal.
Remote signaling acquisition module is located at high-pressure side of direct current system, to the analog quantity letter that the mutual inductor is exported
Number be converted to digital signal.
The combining unit receives digital signal and is transmitted to the protective device.The remote signaling acquisition module and conjunction
And connected between unit with optical fiber, 50kHz is sampled and is forwarded, and the digital signal of transmitting passes through Manchester's code, using 60044-8
Agreement transmits digital signal.
The present invention also provides a kind of measurement methods of laser powered sensor high-speed measuring system, include the following steps:
Step 1, mutual inductor applies analog quantity to the analog input port of remote signaling acquisition module；
Step 2, analog signals are converted to digital signal by remote signaling acquisition module, are transferred to combining unit；
Step 3, the digital signal that remote signaling acquisition module transmits is used and directly adopts the data processing to direct transfer by combining unit
Mechanism is transmitted to protective device after merging treatment, i.e., after the described combining unit receives data packet, the data packet is examined
It tests, digital signal collected is transmitted to corresponding receiving end by former format, and the receiving end responds after receiving data.
Further, in the step 1, mutual inductor exports step signal.
Further, in the step 2, the digital signal of remote signaling acquisition module output is transferred to merging by optical fiber
Unit.
Fig. 3 is the delay composition figure of laser powered sensor high-speed measuring system, and the combining unit directly adopts the data processing to direct transfer
And transmission technology, realize the ultrashort delay of direct-current measuring device and the parallel output of multichannel data with different rate, DC control is protected
Protect the application demand of equipment.
The above examples only illustrate the technical idea of the present invention, and this does not limit the scope of protection of the present invention, all
According to the technical idea provided by the invention, any changes made on the basis of the technical scheme each falls within the scope of the present invention
Within.
Claims (7)
1. a kind of laser powered sensor high-speed measuring system, it is characterised in that: including mutual inductor, remote signaling acquisition module, merge list
Member, wherein mutual inductor is to measure the voltage and current signal of Primary Conductor and export analog signals；The analog signals are also
It is changed into digital signal through remote signaling acquisition module, accesses the combining unit, protection dress is accessed to after combining unit
It sets；The combining unit use directly adopts the data processing mechanism to direct transfer and forwards the digital signal received after merging treatment
To protective device.
2. laser powered sensor high-speed measuring system as described in claim 1, it is characterised in that: the combining unit receives data
Bao Hou examines the data packet, and digital signal collected is transmitted to corresponding receiving end, the reception termination by former format
It is responded after receiving data.
3. laser powered sensor high-speed measuring system as described in claim 1, it is characterised in that: the mutual inductor is complete right using decoupling
Claim direct current current divider, capacitance-resistance parameter symmetrically matched wideband divider.
4. laser powered sensor high-speed measuring system as described in claim 1, it is characterised in that: the remote signaling acquisition module with
It is connected between combining unit with optical fiber.
5. a kind of measurement method of laser powered sensor high-speed measuring system, characterized by the following steps:
Step 1, mutual inductor applies analog quantity to the analog input port of remote signaling acquisition module；
Step 2, analog signals are converted to digital signal by remote signaling acquisition module, are transferred to combining unit；
Step 3, the digital signal that remote signaling acquisition module transmits is used and directly adopts the data processing mechanism to direct transfer by combining unit
It is transmitted to protective device after merging treatment, i.e., after the described combining unit receives data packet, the data packet is examined, institute
The digital signal of acquisition is transmitted to corresponding receiving end by former format, and the receiving end responds after receiving data.
6. measurement method as claimed in claim 5, it is characterised in that: in the step 1, mutual inductor exports step signal.
7. measurement method as claimed in claim 5, it is characterised in that: in the step 2, the output of remote signaling acquisition module
Digital signal is transferred to combining unit by optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711323721.6A CN109917168B (en) | 2017-12-13 | 2017-12-13 | Laser power supply high-speed measurement system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711323721.6A CN109917168B (en) | 2017-12-13 | 2017-12-13 | Laser power supply high-speed measurement system and method |
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| Publication Number | Publication Date |
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| CN109917168A true CN109917168A (en) | 2019-06-21 |
| CN109917168B CN109917168B (en) | 2022-03-29 |
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|---|---|---|---|---|
| CN101930064A (en) * | 2009-06-23 | 2010-12-29 | 华东电力试验研究院有限公司 | Delay measuring method of merging unit and system thereof |
| CN202486199U (en) * | 2012-03-22 | 2012-10-10 | 淄博职业学院 | Data acquisition unit of electronic type mutual inductor |
| CN103969500A (en) * | 2014-04-11 | 2014-08-06 | 深圳市中电电力技术股份有限公司 | Device, method and system for collecting smart power grid analog quantity |
| US20160011247A1 (en) * | 2012-11-15 | 2016-01-14 | State Grid Corporation Of China | Metering circuit apparatus and method for implementing metering |
| CN105548769A (en) * | 2016-01-13 | 2016-05-04 | 江苏省电力公司电力科学研究院 | Relay protection action delay time grading test system and method |
| CN106896282A (en) * | 2017-01-06 | 2017-06-27 | 许继集团有限公司 | A kind of data sampling method and the combining unit for data sampling |
-
2017
- 2017-12-13 CN CN201711323721.6A patent/CN109917168B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930064A (en) * | 2009-06-23 | 2010-12-29 | 华东电力试验研究院有限公司 | Delay measuring method of merging unit and system thereof |
| CN202486199U (en) * | 2012-03-22 | 2012-10-10 | 淄博职业学院 | Data acquisition unit of electronic type mutual inductor |
| US20160011247A1 (en) * | 2012-11-15 | 2016-01-14 | State Grid Corporation Of China | Metering circuit apparatus and method for implementing metering |
| CN103969500A (en) * | 2014-04-11 | 2014-08-06 | 深圳市中电电力技术股份有限公司 | Device, method and system for collecting smart power grid analog quantity |
| CN105548769A (en) * | 2016-01-13 | 2016-05-04 | 江苏省电力公司电力科学研究院 | Relay protection action delay time grading test system and method |
| CN106896282A (en) * | 2017-01-06 | 2017-06-27 | 许继集团有限公司 | A kind of data sampling method and the combining unit for data sampling |
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| 陈勇: "《变电站交流回路智能检验***设计与实现》", 31 December 2015 * |
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Effective date of registration: 20240114 Address after: 211102, No. 69, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing Patentee after: NR ELECTRIC Co.,Ltd. Patentee after: NR ENGINEERING Co.,Ltd. Patentee after: NR ELECTRIC POWER ELECTRONICS Co.,Ltd. Address before: 211102, No. 69, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing Patentee before: NR ELECTRIC Co.,Ltd. Patentee before: NR ENGINEERING Co.,Ltd. |
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