CN207743688U - A kind of boundary switch controller - Google Patents
A kind of boundary switch controller Download PDFInfo
- Publication number
- CN207743688U CN207743688U CN201820114388.1U CN201820114388U CN207743688U CN 207743688 U CN207743688 U CN 207743688U CN 201820114388 U CN201820114388 U CN 201820114388U CN 207743688 U CN207743688 U CN 207743688U
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- Prior art keywords
- chip microcomputer
- single chip
- dsp processor
- pic single
- connect
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a kind of boundary switch controllers, including：Current transformer, AC sampling module, controller, the output end of the current transformer are connect with the input terminal of the AC sampling module, and the controller includes：PIC single chip microcomputer and dsp processor, the PIC single chip microcomputer are connect with the dsp processor by spi bus, and the output end of the PIC single chip microcomputer is connect with demarcation switch, and the input terminal of the dsp processor is connect with the output end of the AC sampling module.The boundary switch controller utilizes the feature of dsp processor and PIC single chip microcomputer respectively, and Fourier transformation these logical operations are undertaken to dsp processor, control generic operation is undertaken to PIC single chip microcomputer, the division of labor is clear, improves response efficiency.The controller can be widely used in power automatic system.
Description
Technical field
The utility model is related to technical field of switch control, more particularly to a kind of boundary switch controller.
Background technology
One substation or 10kV Switching Stations carry a plurality of 10kV outlets, and it is negative that a 10kV outlet may carry multiple users
Lotus, demarcation switch are installed at the responsibility separation of 10kV overhead distributions, for cutting off user's short trouble and shielding wire
Road failure.
Traditional boundary switch controller generally comprises：Current transformer, AC sampling module, controller, Current Mutual Inductance
Device senses that A phase currents change, this variation is then converted to the electric power signal between 0~+3.3V by AC sampling module,
The electric power signal is input to by ADC interface in the controller, it carries out Fourier transformation with the controller, analyzes its phase
Then position or Variation Features compare with the electric current adjusted, to determine whether to break down, finally control demarcation switch and make
Action.
But the controller of existing demarcation switch control is generally PIC single chip microcomputer, however PIC single chip microcomputer biases toward
Control, operational capability is limited and arithmetic speed is not high, and therefore, existing boundary switch controller often has response not in time
The drawbacks of.
Utility model content
The utility model solve the technical issues of be：A kind of boundary switch controller that response speed is high is provided.
The solution that the utility model solves its technical problem is：A kind of boundary switch controller, including：Current Mutual Inductance
Device, AC sampling module, controller, the output end of the current transformer are connect with the input terminal of the AC sampling module,
The controller includes：PIC single chip microcomputer and dsp processor, the PIC single chip microcomputer are connected with the dsp processor by spi bus
It connects, the output end of the PIC single chip microcomputer and the breaker of demarcation switch connect, the input terminal of the dsp processor and the friendship
Flow the output end connection of sampling module.
Further, the invention further includes wireless transport module, and the PIC single chip microcomputer passes through serial ports and the wireless biography
Defeated module connection.
Further, the model of the PIC single chip microcomputer：PIC24FJ128GA.
Further, the model of the dsp processor：dsPIC30F6014A.
The utility model has the beneficial effects that：The boundary switch controller is respective using dsp processor and PIC single chip microcomputer
Feature undertakes Fourier transformation these logical operations to dsp processor, and control generic operation is undertaken to PIC single chip microcomputer, is divided the work
It is clear, improve response efficiency.The controller can be widely used in power automatic system.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the connection relationship diagram of boundary switch controller；
Fig. 2 is the hardware annexation schematic diagram of the spi bus of PIC single chip microcomputer and dsp processor；
Fig. 3 is the circuit connection diagram of AC sampling module.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.In addition, all connection/connection relations being previously mentioned in text, not singly refer to component and directly connect, and referring to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the invention is special
Sign, can be with combination of interactions under the premise of not conflicting conflict.
Embodiment 1, with reference to figure 1, a kind of boundary switch controller, including：Current transformer 4, AC sampling module 2, control
Device 1 processed, the output end of the current transformer 4 are connect with the input terminal of the AC sampling module 2, and the controller 1 includes：
PIC single chip microcomputer and dsp processor, the PIC single chip microcomputer are connect with the dsp processor by spi bus, the PIC monolithics
The output end of machine is connect with the breaker of demarcation switch 5, the input terminal of the dsp processor and the AC sampling module 2
Output end connects.
The dsp processor uses the 16 position digital signal controller dsPIC30F6014A of high-performance of Microchip companies
Chip, the chip have many advantages, such as that low in energy consumption, performance is strong, resource is more, easy to use.The PIC single chip microcomputer selects Microchip
16 Common Flash Memory microcontrollers of high-performance of company：The peripheral circuit demand of PIC24FJ128GA chips, the chip is few, therefore
The cost of whole controller can be greatly reduced using the microcontroller.The dsPIC30F6014A chips and PIC24FJ128GA
For chipset at double-core control structure, the dsPIC30F6014A chips and PIC24FJ128GA chips are mutual by spi bus
Communication.
With reference to figure 2, hardware annexation that dsPIC30F6014A chips and PIC24FJ128GA chips pass through spi bus.
The dsPIC30F6014A chips constitute master-slave system with PIC24FJ128GA chips, and the dsPIC30F6014A chips are made
For slave, the PIC24FJ128GA chips are communicated between host and slave processors by respective SPI interface as host.
With reference to figure 3, the AC sampling module 2 includes：Sampling resistor R1, scaling circuit 21, lifting circuit 22, institute
It states sampling resistor R1 and the current transformer 4 and connects, the scaling circuit 21 includes：Resistance R2, R3, R4, operation are put
The upper end of big device U1, the sampling resistor R1 are connect by resistance R4 with the in-phase input end of the operational amplifier U1, described
The lower end of sampling resistor R1 is connect by resistance R2 with the inverting input of the operational amplifier U1, the operational amplifier U1
Inverting input connect with its output end by the resistance R3.
The lifting circuit 22 includes：Resistance R5, R6, R7, operational amplifier U2, the operation of the scaling circuit 21
The output end of amplifier U1 is connect by resistance R6 with the inverting input of the operational amplifier U2, the operational amplifier U2
In-phase input end connect with reference voltage 1.2V by resistance R5, the inverting input of the operational amplifier U2 passes through resistance
R7 is connect with its output end.
A phases alternating current that the current transformer 4 senses simultaneously generates induced current I, the induced current I and passes through sampling
Resistance R1 forms induced voltage, and according to the empty short empty disconnected principles of operational amplifier U1, Vout=((R2+R3)/R3) * I*R1 are described
Vout is input to the lifting circuit 22, described according to the empty short empty disconnected principles of the operational amplifier U2 of the lifting circuit 22
Vout1=-Vout+1.2V.Conversion in this way so that the induced current I of current transformer 4 is convertible into dsp processor
It is required that positive voltage, to meet the requirement of dsp processor.
The electric current of A phases is detected using current transformer 4, is then turned the electric current detected by AC sampling module 2
It is changed to identifiable electric power signal, in the signal transmission to dsp processor, using the good logical operation capability of dsp processor,
The electric power signal is subjected to Fourier transformation, then calculates its phase or Variation Features, the electric current that most heel is adjusted compares, obtains
The fail result is sent to PIC single chip microcomputer to fail result, and by spi bus, the PIC single chip microcomputer is according to the failure
As a result, the breaker switching of the demarcation switch 5 is controlled, to cut off user's short trouble and line fault is isolated.
The boundary switch controller utilizes the feature of dsp processor and PIC single chip microcomputer respectively, and by Fourier transformation, these are patrolled
It collects operation to undertake to dsp processor, control generic operation be undertaken to PIC single chip microcomputer, the division of labor is clear, improves response efficiency.It should
Controller can be widely used in power automatic system.
As an optimization, the invention further includes wireless transport module 3, and the PIC single chip microcomputer passes through serial ports and the nothing
Line transmission module 3 connects.When a failure occurs it, after which can be sent to by the PIC single chip microcomputer by wireless transport module 3
Platform can timely follow up to failure to allow people to know the generation of failure in time.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (4)
1. a kind of boundary switch controller, including：Current transformer, AC sampling module, controller, the current transformer
Output end is connect with the input terminal of the AC sampling module, it is characterised in that：The controller includes：PIC single chip microcomputer and DSP
Processor, the PIC single chip microcomputer are connect with the dsp processor by spi bus, the output end of the PIC single chip microcomputer with point
The breaker connection of boundary's switch, the input terminal of the dsp processor are connect with the output end of the AC sampling module.
2. a kind of boundary switch controller according to claim 1, it is characterised in that：Further include wireless transport module, institute
PIC single chip microcomputer is stated to connect with the wireless transport module by serial ports.
3. a kind of boundary switch controller according to claim 1 or 2, it is characterised in that：The model of the PIC single chip microcomputer
For：PIC24FJ128GA.
4. a kind of boundary switch controller according to claim 3, it is characterised in that：The model of the dsp processor：
dsPIC30F6014A。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820114388.1U CN207743688U (en) | 2018-01-23 | 2018-01-23 | A kind of boundary switch controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820114388.1U CN207743688U (en) | 2018-01-23 | 2018-01-23 | A kind of boundary switch controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207743688U true CN207743688U (en) | 2018-08-17 |
Family
ID=63123721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820114388.1U Expired - Fee Related CN207743688U (en) | 2018-01-23 | 2018-01-23 | A kind of boundary switch controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207743688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023340A (en) * | 2018-01-23 | 2018-05-11 | 佛山科学技术学院 | A kind of boundary switch controller |
-
2018
- 2018-01-23 CN CN201820114388.1U patent/CN207743688U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023340A (en) * | 2018-01-23 | 2018-05-11 | 佛山科学技术学院 | A kind of boundary switch controller |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180817 Termination date: 20200123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |