CN103887050A - Mutual inductor device in intelligent substation - Google Patents
Mutual inductor device in intelligent substation Download PDFInfo
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- CN103887050A CN103887050A CN201410114001.9A CN201410114001A CN103887050A CN 103887050 A CN103887050 A CN 103887050A CN 201410114001 A CN201410114001 A CN 201410114001A CN 103887050 A CN103887050 A CN 103887050A
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Abstract
The invention provides a mutual inductor device in an intelligent substation. The mutual inductor device comprises a low-power iron-core coil, a primary converter, a capacitive voltage divider, a composite insulator, an optical fiber, an insulating optical interface module, an optical cable, a driving module and a merging unit; the low-power iron-core coil and the primary converter are arranged at the high-voltage end of the mutual inductor device; the merging unit is connected with secondary equipment of the substation; the merging unit is used for receiving multi-channel sampling signals transmitted by the primary converter, merging and synchronously processing the multi-channel sampling signals, and generating multiplexed output. The mutual inductor device in the intelligent substation is simple, reliable, small in size, light in weight, large in dynamic response range, and free of magnetic saturation, a PT does not have a resonance phenomenon, and precision is unrelated to loads.
Description
Technical field
The invention relates to intelligent grid technology, particularly about intelligent substation instrument transformer technology, concretely, is about the transformer device in a kind of intelligent substation.
Background technology
Traditional electromagnetic transformer, based on electromagnetic induction principle, is mainly made up of iron core and coil, and this instrument transformer exists saturation problem, and frequency band is not wide, along with the raising of electric pressure, insulation difficulty is large, and cost is high, has magnetic saturation, easily produce magnet resonance, and can not open a way, can only analog output.
Summary of the invention
The invention provides the transformer device in a kind of intelligent substation, not wide to solve the frequency band that existing instrument transformer exists, the insulation difficulty that causes along with the raising of electric pressure is large, cost is high, have magnetic saturation, easily produce the problems such as magnet resonance.
To achieve these goals, the invention provides the transformer device in a kind of intelligent substation, described transformer device comprises: low-power iron-core coil, primary transducer, capacitor voltage divider, insulation optical interface module, driver module and merge cells; Described low-power iron-core coil and primary transducer are arranged at the high-pressure side of described transformer device; Described capacitor voltage divider comprises: composite insulator and optical fiber, and described optical fiber is embedded in described load insulator;
Described primary transducer connects described insulation optical interface module by described optical fiber, and described insulation optical interface module is connected with described driver module by optical cable, and described driver module is connected with described merge cells; Described merge cells is used to described primary transducer that energy supply laser is provided, and multi-channel sampling signal is merged and synchronously after processing, export to connected substation secondary device.
In one embodiment, described driver module comprises: PIN interface module, data processing module, drive circuit and laser, described PIN interface module receives described multi-channel sampling signal, and described multi-channel sampling signal is sent to described data processing module; Described data processing module sends to described merge cells and drive circuit after described multi-channel sampling signal is processed, described drive circuit feeds back output according to the laser described in described multi-channel sampling signal controlling after treatment to described insulation optical interface module.
In one embodiment, described merge cells comprises: route protection output port, bus protection output port, tranformer protection output port, record wave output terminal mouth, observing and controlling output port and metering output port.The multi-channel sampling signal that described merge cells transmits for receiving described primary transducer, and described multi-channel sampling signal is merged and synchronously processed, multichannel output generated.
The beneficial effect of the embodiment of the present invention is, the transformer device in intelligent substation of the present invention is simple and reliable, and volume is little lightweight, and responding range is large, and without magnetic saturation, PT is without resonance phenomena, and precision and load are irrelevant.Solved the frequency band that existing instrument transformer exists not wide, the insulation difficulty that causes along with the raising of electric pressure is large, cost is high, have magnetic saturation, easily produce the problems such as magnet resonance.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structured flowchart of the transformer device 100 in the intelligent substation of the embodiment of the present invention;
Fig. 2 is the structural representation of the transformer device in the intelligent substation of the embodiment of the present invention;
Fig. 3 is the structured flowchart of the driver module of the embodiment of the present invention;
Fig. 4 is the port schematic diagram of the merge cells of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the embodiment of the present invention provides the transformer device 100 in a kind of intelligent substation, and this transformer device 100 comprises: low-power iron-core coil 101, primary transducer 102, capacitor voltage divider 103, insulation optical interface module 104, optical cable 105, driver module 106 and merge cells 107.
As shown in Figure 2, capacitor voltage divider comprises: composite insulator 108 and optical fiber 109, optical fiber 109 is embedded in composite insulator 108.
Low-power iron-core coil 101 is sampled to sample objects, sampled signal is converted to fiber-optic signal by primary transducer 102, be transferred to insulation optical interface module 104 by optical fiber 109, the output signal of insulation optical interface module 104 sends to driver module 106 by optical cable 105, also receive the light output of driver module 106 by optical cable 105, the data processed result of driver module 106 is sent to merge cells 107 simultaneously.
As shown in Figure 3, driver module 106 further comprises: PIN interface module 301, data processing module 302, drive circuit 303 and laser 304.PIN interface module 301 receives multi-channel sampling signal, and multi-channel sampling signal is sent to data processing module 302; Data processing module 302 sends to merge cells 107 and drive circuit 303 after multi-channel sampling signal is processed.Drive circuit 303 feeds back output according to multi-channel sampling signal controlling laser 304 after treatment to insulation optical interface module 104.
Data synchronization problems refer to sampled data that substation secondary device needs be put at one time adopt, i.e. the time synchronized of sampled data, to avoid phase place and amplitude to produce error.In electric power system, exact time synchronization is very important, and it is widely used in relaying protection, fault localization, accident analysis, automatically controls and all many-sides such as electric degree collection.For example, for metering, require timing tracking accuracy to be controlled in 1us, general transmission line protection, timing tracking accuracy should be in 4us.Stationary problem had interpolation calculation and used two kinds of methods of common clock impulsive synchronization settling time.Interpolation calculation is completed by secondary device, the sampled value on several time points that provide according to instrument transformer, the electric current and voltage value on the time point that interpolation calculation obtains needing.Adopt the method for common clock impulsive synchronization, in instrument transformer, receiver module receives accurate second public clock pulse of full station, and the internal clocking of self is synchronizeed with common clock.Finally send synchronic command according to the frequency-doubled signal of common clock to connected instrument transformer.
It is synchronous that the present invention generally adopts the method for interpolation calculation to realize data, and it is synchronous that merge cells adopts interpolation algorithm to realize, and hardware is simple, reliability is high.
As shown in Figure 4, merge cells 107 comprises: route protection output port 401, bus protection output port 402; tranformer protection output port 403; record wave output terminal mouth 404, observing and controlling output port 405 and metering output port 406, be all connected to substation secondary device 200.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
In the present invention, applied specific embodiment principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (3)
1. the transformer device in intelligent substation, is characterized in that, described transformer device comprises: low-power iron-core coil, primary transducer, capacitor voltage divider, insulation optical interface module, driver module and merge cells; Described low-power iron-core coil and primary transducer are arranged at the high-pressure side of described transformer device; Described capacitor voltage divider comprises: composite insulator and optical fiber, and described optical fiber is embedded in described load insulator;
Described primary transducer connects described insulation optical interface module by described optical fiber, and described insulation optical interface module is connected with described driver module by optical cable, and described driver module is connected with described merge cells; Described merge cells is used to described primary transducer that energy supply laser is provided, and multi-channel sampling signal is merged and synchronously after processing, export to connected substation secondary device.
2. the transformer device in intelligent substation as claimed in claim 1, it is characterized in that, described driver module comprises: PIN interface module, data processing module, drive circuit and laser, described PIN interface module receives described multi-channel sampling signal, and described multi-channel sampling signal is sent to described data processing module; Described data processing module sends to described merge cells and drive circuit after described multi-channel sampling signal is processed, described drive circuit feeds back output according to the laser described in described multi-channel sampling signal controlling after treatment to described insulation optical interface module.
3. the transformer device in intelligent substation as claimed in claim 1, is characterized in that, described merge cells comprises: route protection output port; bus protection output port; tranformer protection output port, record wave output terminal mouth, observing and controlling output port and metering output port.The multi-channel sampling signal that described merge cells transmits for receiving described primary transducer, and described multi-channel sampling signal is merged and synchronously processed, multichannel output generated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410114001.9A CN103887050A (en) | 2014-03-25 | 2014-03-25 | Mutual inductor device in intelligent substation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114001.9A CN103887050A (en) | 2014-03-25 | 2014-03-25 | Mutual inductor device in intelligent substation |
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| CN103887050A true CN103887050A (en) | 2014-06-25 |
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| CN201410114001.9A Pending CN103887050A (en) | 2014-03-25 | 2014-03-25 | Mutual inductor device in intelligent substation |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571556A (en) * | 2008-04-30 | 2009-11-04 | 上海新跃仪表厂 | Sagnac interferometer type all-fiber current transformator |
| CN201608562U (en) * | 2010-02-08 | 2010-10-13 | 广东电网公司中山供电局 | Moving die system based on electronic-type mutual inductor |
| CN201655522U (en) * | 2009-12-18 | 2010-11-24 | 南阳中祥电力电子有限公司 | Optical fiber fixing structure of electronic mutual inductor |
| CN201820628U (en) * | 2010-06-10 | 2011-05-04 | 中国西电电气股份有限公司 | Electronic current and voltage transformer |
| CN103346007A (en) * | 2013-07-26 | 2013-10-09 | 常州博瑞电力自动化设备有限公司 | Electronic current transformer of isolation circuit breaker |
| CN103558440A (en) * | 2013-10-22 | 2014-02-05 | 江苏靖江互感器厂有限公司 | Intelligent electronic type voltage transformer |
-
2014
- 2014-03-25 CN CN201410114001.9A patent/CN103887050A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571556A (en) * | 2008-04-30 | 2009-11-04 | 上海新跃仪表厂 | Sagnac interferometer type all-fiber current transformator |
| CN201655522U (en) * | 2009-12-18 | 2010-11-24 | 南阳中祥电力电子有限公司 | Optical fiber fixing structure of electronic mutual inductor |
| CN201608562U (en) * | 2010-02-08 | 2010-10-13 | 广东电网公司中山供电局 | Moving die system based on electronic-type mutual inductor |
| CN201820628U (en) * | 2010-06-10 | 2011-05-04 | 中国西电电气股份有限公司 | Electronic current and voltage transformer |
| CN103346007A (en) * | 2013-07-26 | 2013-10-09 | 常州博瑞电力自动化设备有限公司 | Electronic current transformer of isolation circuit breaker |
| CN103558440A (en) * | 2013-10-22 | 2014-02-05 | 江苏靖江互感器厂有限公司 | Intelligent electronic type voltage transformer |
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Application publication date: 20140625 |