CN205067527U - Merging cells device with two filtering acquisition circuit - Google Patents
Merging cells device with two filtering acquisition circuit Download PDFInfo
- Publication number
- CN205067527U CN205067527U CN201520575717.9U CN201520575717U CN205067527U CN 205067527 U CN205067527 U CN 205067527U CN 201520575717 U CN201520575717 U CN 201520575717U CN 205067527 U CN205067527 U CN 205067527U
- Authority
- CN
- China
- Prior art keywords
- circuit
- acquisition circuit
- acquisition
- filtering
- return circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measuring Frequencies, Analyzing Spectra (AREA)
Abstract
The utility model discloses a merging cells device with two filtering acquisition circuit, including exchanging the mutual -inductor, it is first, second filtering return circuit, it is first, and secondly, third and fourth AD acquisition circuit, the secondary side winding that exchanges the mutual -inductor is respectively with first, the input in second filtering return circuit is connected, first filtering return circuit is the low pass filter return circuit, second filtering return circuit is the high -pass filtering return circuit, the output in first filtering return circuit is respectively through first, the external microcontroller who needs low frequency data signal of the 2nd AD acquisition circuit, the output in second filtering return circuit passes through the third respectively, the external microcontroller who needs high frequency data signal of fourth AD acquisition circuit. The utility model discloses make merging cells be applicable to the data signal of the different frequency channels of the progress of disease simultaneously, application scope is wider, can not lead to the fact the frequency alias in protection and measurement and control device, need not to design digital filter, has practiced thrift the data processing time delay greatly, and the improvement speed of action has good application prospect.
Description
Technical field
The utility model relates to intelligent grid data acquisition technology field, is specifically related to a kind of merge cells device with two filtering acquisition circuits.
Background technology
At present, domestic intelligent substation construction has entered the large-scale promotion stage, adopts the merge cells of conventional electromagnetic mutual inductor and protecting control device still to use widely in intelligent substation.At present, the merge cells of each producer domestic development is all towards single application scenario, i.e. relay protection control system, and data, only through single filter circuit process, form the digital signal of single sampling rate.
Along with merge cells is in intelligent power system large-scale application, its application scenario with towards object get more and more, except relay protection control system, the occasions such as such as travelling wave ranging, the quality of power supply, metering also all need merge cells to provide digital sample for it.
At present, each producer domestic possesses the merge cells device of different filter circuit and sampling rate for the exploitation of different application occasion, but does not consider the application that realizes in same merge cells device towards various application occasions.And; at present; merge cells device generally adopts very high filter cutoff frequency; when relay protection controlling device receives the digital message that merge cells sends; have to pass through digital filtering and just can prevent high frequency interference aliasing; but digital filter can expend again process resource and the processing time of relay protection controlling device.
Utility model content
The technical matters that the utility model solves overcomes existing merge cells device; there is no the application considering to realize in same merge cells device towards various application occasions; and; adopt very high filter cutoff frequency, process resource and the problem in processing time of relay protection controlling device can be expended again.
In order to achieve the above object, the technical scheme that the utility model adopts is:
There is a merge cells device for two filtering acquisition circuits, it is characterized in that: comprise D.C mutual-inductor, first filter circuit, second filter circuit, one AD Acquisition Circuit, 2nd AD Acquisition Circuit, 3rd AD Acquisition Circuit and the 4th AD Acquisition Circuit, the primary side winding of described D.C mutual-inductor respectively with the first filter circuit, the input end of the second filter circuit is connected, and described first filter circuit is low-pass filtering loop, and described second filter circuit is high-pass filtering loop, the output terminal of described first filter circuit respectively with an AD Acquisition Circuit, the input end of the 2nd AD Acquisition Circuit is connected, a described AD Acquisition Circuit, external the first microcontroller needing low-frequency digital signal of the output terminal of the 2nd AD Acquisition Circuit, the output terminal of described second filter circuit respectively with the 3rd AD Acquisition Circuit, the input end of the 4th AD Acquisition Circuit is connected, described 3rd AD Acquisition Circuit, external the second microcontroller needing high-frequency digital signal of the output terminal of the 3rd AD Acquisition Circuit.
The aforesaid merge cells device with two filtering acquisition circuits, is characterized in that: described first filter circuit is RC low-pass filtering loop.
The aforesaid merge cells device with two filtering acquisition circuits, is characterized in that: described second filter circuit is RC high-pass filtering loop.
The beneficial effects of the utility model are: the merge cells device with two filtering acquisition circuits of the present utility model; two filtering acquisition circuits is provided with in merge cells device; make merge cells be applicable to the data-signal of progress of disease different frequency range simultaneously; the scope of application is wider; can not frequency alias be caused in protection and measurement and control device, without the need to designing digital filter, greatly save data processing time delay; improve the responsiveness of protection and measurement and control device, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the system chart with the merge cells device of two filtering acquisition circuits of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in Figure 1, the merge cells device with two filtering acquisition circuits of the present utility model, comprise D.C mutual-inductor, first filter circuit, second filter circuit, one AD Acquisition Circuit, 2nd AD Acquisition Circuit, 3rd AD Acquisition Circuit and the 4th AD Acquisition Circuit, the primary side winding of D.C mutual-inductor respectively with the first filter circuit, the input end of the second filter circuit is connected, first filter circuit is low-pass filtering loop, second filter circuit is high-pass filtering loop, the output terminal of the first filter circuit respectively with an AD Acquisition Circuit, the input end of the 2nd AD Acquisition Circuit is connected, one AD Acquisition Circuit, external the first microcontroller needing low-frequency digital signal of the output terminal of the 2nd AD Acquisition Circuit, as the microcontroller that protection and measurement and control device in electric system uses, the output terminal of the second filter circuit is connected with the input end of the 3rd AD Acquisition Circuit, the 4th AD Acquisition Circuit respectively, external second microcontroller needing high-frequency digital signal of output terminal of the 3rd AD Acquisition Circuit, the 3rd AD Acquisition Circuit, as the microcontroller that the quality of power supply in electric system uses,
Described first filter circuit is RC low-pass filtering loop, and described second filter circuit is RC high-pass filtering loop.
Based on the above-mentioned method of work with the merge cells device of two filtering acquisition circuits, specifically comprise the following steps,
Step (1), by the output channel of D.C mutual-inductor primary side winding through two groups of different filter circuits, the first filter circuit is low-pass filtering loop, and the second filter circuit is high-pass filtering loop;
Step (2), through the low-frequency data signal of the first filter circuit, after an AD Acquisition Circuit, the 2nd AD Acquisition Circuit sampling, for the first microcontroller that protection and measurement and control device in electric system uses;
Step (3), through the high-frequency data signal of the second filter circuit, after the 3rd AD Acquisition Circuit, the 4th AD Acquisition Circuit sampling, for the second microcontroller that the quality of power supply in electric system uses.
In sum; merge cells device and the method for work thereof with two filtering acquisition circuits of the present utility model; two filtering acquisition circuits is provided with in merge cells device; make merge cells be applicable to the data-signal of progress of disease different frequency range, the scope of application is wider, can not cause frequency alias in protection and measurement and control device simultaneously; without the need to designing digital filter; greatly save data processing time delay, improved the responsiveness of protection and measurement and control device, have a good application prospect.
More than show and describe ultimate principle of the present utility model, principal character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. there is a merge cells device for two filtering acquisition circuits, it is characterized in that: comprise D.C mutual-inductor, first filter circuit, second filter circuit, one AD Acquisition Circuit, 2nd AD Acquisition Circuit, 3rd AD Acquisition Circuit and the 4th AD Acquisition Circuit, the primary side winding of described D.C mutual-inductor respectively with the first filter circuit, the input end of the second filter circuit is connected, and described first filter circuit is low-pass filtering loop, and described second filter circuit is high-pass filtering loop, the output terminal of described first filter circuit respectively with an AD Acquisition Circuit, the input end of the 2nd AD Acquisition Circuit is connected, a described AD Acquisition Circuit, external the first microcontroller needing low-frequency digital signal of the output terminal of the 2nd AD Acquisition Circuit, the output terminal of described second filter circuit respectively with the 3rd AD Acquisition Circuit, the input end of the 4th AD Acquisition Circuit is connected, described 3rd AD Acquisition Circuit, external the second microcontroller needing high-frequency digital signal of the output terminal of the 3rd AD Acquisition Circuit.
2. the merge cells device with two filtering acquisition circuits according to claim 1, is characterized in that: described first filter circuit is RC low-pass filtering loop.
3. the merge cells device with two filtering acquisition circuits according to claim 1, is characterized in that: described second filter circuit is RC high-pass filtering loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520575717.9U CN205067527U (en) | 2015-08-04 | 2015-08-04 | Merging cells device with two filtering acquisition circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520575717.9U CN205067527U (en) | 2015-08-04 | 2015-08-04 | Merging cells device with two filtering acquisition circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205067527U true CN205067527U (en) | 2016-03-02 |
Family
ID=55394064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520575717.9U Active CN205067527U (en) | 2015-08-04 | 2015-08-04 | Merging cells device with two filtering acquisition circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205067527U (en) |
-
2015
- 2015-08-04 CN CN201520575717.9U patent/CN205067527U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105334379A (en) | Network-voltage sampling input circuit | |
| CN205067527U (en) | Merging cells device with two filtering acquisition circuit | |
| CN204539097U (en) | A kind of noise reduction filtering circuit for pi type filter and a kind of pi type filter | |
| CN205176124U (en) | Grid voltage input circuit that samples | |
| CN203720258U (en) | High-speed synchronous data sampling device for voltage and current transient signals | |
| CN203301465U (en) | Infrared signal processing circuit reducing interference | |
| CN109725576A (en) | A kind of SiC power device control method and device device | |
| CN205176125U (en) | Grid voltage input circuit that samples | |
| CN204290903U (en) | The filter circuit that belt switch exports | |
| CN203747818U (en) | Medium-voltage power line carrier communication connection structure based on mixed lines | |
| CN208479636U (en) | Apparatus of load size is avoided to influence the structure of bus signals in circuit signal transmission | |
| CN203406842U (en) | Mixing polyphase cascading integral comb filter | |
| CN204116433U (en) | A kind of phase current sensing circuit of high-frequency dust removing power supply | |
| CN203569623U (en) | Water supply flow control system | |
| CN104598413A (en) | Multichannel data management circuit and method | |
| CN104459419A (en) | Measuring error compensation method and device for nonsynchronous periodic signal adoption | |
| CN204559748U (en) | The splitter circuit of multiple-limb end | |
| CN204216878U (en) | A kind of mining Multichannel data acquisition device | |
| CN205263173U (en) | Sampling modulate circuit | |
| CN202652180U (en) | Latch circuit for high-speed interface | |
| CN105334380A (en) | Network voltage sampling input circuit | |
| CN203800929U (en) | All-electric carrier communication remote integrated meter reading system | |
| CN207249899U (en) | Intelligent operation control device of switch cabinet | |
| CN202256419U (en) | Pass electric energy metering system | |
| CN204576332U (en) | A kind of power supply terminal mu balanced circuit of improvement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |