CN103901246A - Electronic transformer device - Google Patents
Electronic transformer device Download PDFInfo
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- CN103901246A CN103901246A CN201410114505.0A CN201410114505A CN103901246A CN 103901246 A CN103901246 A CN 103901246A CN 201410114505 A CN201410114505 A CN 201410114505A CN 103901246 A CN103901246 A CN 103901246A
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- mutual inductor
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Abstract
The invention provides an electronic transformer device. The electronic transformer device comprises a low-power iron core coil, a primary converter, a capacitive voltage divider, a composite insulator, optical fibers, an insulating light interface module, an optical cable, a drive module and a merging unit. The low-power iron core coil and the primary converter are arranged at the high-voltage end of the electronic transformer device. The merging unit is connected with a transformer substation secondary device and used for receiving multiple sampling signals transmitted by the primary converter, merging and synchronously processing the multiple sampling signals and generating multiplexed output. The electronic transformer device is simple, reliable, small in size, light in weight, large in dynamic response range and free of magnetic saturation; PT is free of resonance phenomena and the accuracy is not relevant to loads.
Description
Technical field
The invention relates to intelligent grid technology, particularly about intelligent substation mutual inductor technology, concretely, is about a kind of electronic mutual inductor apparatus.
Background technology
Traditional electromagnetic transformer, based on electromagnetic induction principle, is mainly made up of iron core and coil, and this mutual inductor 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 a kind of electronic mutual inductor apparatus, not wide to solve the frequency band that existing mutual inductor 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 a kind of electronic mutual inductor apparatus, described electronic mutual inductor apparatus comprises: low-power iron-core coil, primary transducer, capacitive divider, insulation optical interface module, optical cable, driver module and merge cells; Described low-power iron-core coil and primary transducer are arranged at the high-pressure side of described electronic mutual inductor apparatus; Described merge cells connects substation secondary device; Described capacitive divider comprises: composite insulator and optical fiber;
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.
In one embodiment, described merge cells is also used to described primary transducer that energy supply laser is provided.
In one embodiment, described driver module comprises: PIN interface module, data processing module, driving circuit and laser instrument, 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 driving circuit after described multi-channel sampling signal is processed, described driving circuit feeds back output according to the laser instrument 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 beneficial effect of the embodiment of the present invention is, electronic mutual inductor apparatus 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 mutual inductor 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.
Accompanying drawing explanation
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 skills, 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 electronic mutual inductor apparatus 100 of the embodiment of the present invention;
Fig. 2 is the structural representation of the electronic mutual inductor apparatus 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, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, 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 a kind of electronic mutual inductor apparatus 100, and this electronic mutual inductor apparatus 100 comprises: low-power iron-core coil 101, primary transducer 102, capacitive divider 103, insulation optical interface module 104, optical cable 105, driver module 106 and merge cells 107.
As shown in Figure 2, capacitive 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, driving circuit 303 and laser instrument 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 driving circuit 303 after multi-channel sampling signal is processed.Driving circuit 303 feeds back output according to multi-channel sampling signal controlling laser instrument 304 after treatment to insulation optical interface module 104.
It (is that primary transducer 102 transmits that merge cells 107 receives data processing module 302 multi-channel sampling signal after treatment, and through data processing module 302 multi-channel sampling signal after treatment) and multi-channel sampling signal is merged and synchronously processed, multichannel output generated.
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 system, exact time synchronization is very important, and it is widely used in relay protection, fault localization, fault 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 mutual inductor, the electric current and voltage value on the time point that interpolation calculation obtains needing.Adopt the method for common clock impulsive synchronization, in mutual inductor, receiver module receives accurate second public time clock 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 mutual inductor.
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.
In one embodiment, merge cells 107 is also used to primary transducer 102 that energy supply laser is provided.
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 disk memory, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is with reference to describing according to process flow diagram and/or the block scheme 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 scheme and/or square frame and process flow diagram and/or block scheme and/or the combination of square frame.Can provide these computer program instructions to the processor of multi-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 computing machine or other programmable data processing device produces the device for realizing the function of specifying at flow process of process flow diagram or multiple flow process and/or square frame of block scheme 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 process flow diagram or multiple flow process and/or square frame of block scheme or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computing machine 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 process flow diagram or multiple flow process and/or square frame of block scheme or multiple square frame on computing machine or other programmable devices.
In the present invention, applied specific embodiment principle of the present invention and embodiment 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 (4)
1. an electronic mutual inductor apparatus, is characterized in that, described electronic mutual inductor apparatus comprises: low-power iron-core coil, primary transducer, capacitive divider, insulation optical interface module, optical cable, driver module and merge cells; Described low-power iron-core coil and primary transducer are arranged at the high-pressure side of described electronic mutual inductor apparatus; Described merge cells connects substation secondary device;
Described capacitive divider comprises: composite insulator and optical fiber;
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.
2. electronic mutual inductor apparatus as claimed in claim 1, is characterized in that, described merge cells is also used to described primary transducer that energy supply laser is provided.
3. electronic mutual inductor apparatus as claimed in claim 1, it is characterized in that, described driver module comprises: PIN interface module, data processing module, driving circuit and laser instrument, 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 driving circuit after described multi-channel sampling signal is processed, described driving circuit feeds back output according to the laser instrument described in described multi-channel sampling signal controlling after treatment to described insulation optical interface module.
4. electronic mutual inductor apparatus 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114505.0A CN103901246A (en) | 2014-03-25 | 2014-03-25 | Electronic transformer device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114505.0A CN103901246A (en) | 2014-03-25 | 2014-03-25 | Electronic transformer device |
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| CN103901246A true CN103901246A (en) | 2014-07-02 |
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| CN201410114505.0A Pending CN103901246A (en) | 2014-03-25 | 2014-03-25 | Electronic transformer device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142839A (en) * | 2018-08-21 | 2019-01-04 | 南京南瑞继保电气有限公司 | A kind of binary channels mutually verifies electronic mutual inductor |
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| CN103389400A (en) * | 2012-05-07 | 2013-11-13 | 湖北天瑞电子有限公司 | Open type optical current transformer |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109142839A (en) * | 2018-08-21 | 2019-01-04 | 南京南瑞继保电气有限公司 | A kind of binary channels mutually verifies electronic mutual inductor |
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Application publication date: 20140702 |