CN108023340A - A kind of boundary switch controller - Google Patents
A kind of boundary switch controller Download PDFInfo
- Publication number
- CN108023340A CN108023340A CN201810063519.2A CN201810063519A CN108023340A CN 108023340 A CN108023340 A CN 108023340A CN 201810063519 A CN201810063519 A CN 201810063519A CN 108023340 A CN108023340 A CN 108023340A
- Authority
- CN
- China
- Prior art keywords
- chip microcomputer
- single chip
- dsp processor
- pic single
- controller
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/263—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of measured values
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- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Evolutionary Computation (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of boundary switch controller, including：Current transformer, AC sampling module, controller, the output terminal of the current transformer are connected 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 connected with the dsp processor by spi bus, and the output terminal of the PIC single chip microcomputer is connected with demarcation switch, and the input terminal of the dsp processor is connected with the output terminal of the AC sampling module.The boundary switch controller using dsp processor and PIC single chip microcomputer each the characteristics of, Fourier transformation these logical operations are undertaken to dsp processor, control generic operation are undertaken to PIC single chip microcomputer, the division of labor is clear and definite, improves response efficiency.The controller can be widely used among power automatic system.
Description
Technical field
The present invention relates 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 a 10kV outlet may be born with 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 then is changed the electric power signal be converted between 0~+3.3V by AC sampling module,
The electric power signal is input in the controller by ADC interface, it carries out Fourier transformation with the controller, analyzes its phase
Position or Variation Features, then compare with the electric current adjusted, so as to determine whether to break down, finally control demarcation switch to make
Action.
But the controller of existing demarcation switch control is generally PIC single chip microcomputer, but 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.
The content of the invention
Present invention solves the technical problem that it is：There is provided a kind of response speed high boundary switch controller.
The present invention solve its technical problem solution be：A kind of boundary switch controller, including：Current transformer,
AC sampling module, controller, the output terminal of the current transformer is connected with the input terminal of the AC sampling module, described
Controller includes：PIC single chip microcomputer and dsp processor, the PIC single chip microcomputer are connected with the dsp processor by spi bus,
The output terminal of the PIC single chip microcomputer and the breaker of demarcation switch connect, and the input terminal of the dsp processor is adopted with described exchange
The output terminal connection of egf block.
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 beneficial effects of the invention are as follows：The boundary switch controller utilizes dsp processor and the respective spy of PIC single chip microcomputer
Point, Fourier transformation these logical operations are undertaken to dsp processor, control generic operation are undertaken to PIC single chip microcomputer, the division of labor is bright
Really, response efficiency is improved.The controller can be widely used among power automatic system.
Brief description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.Obviously, described attached drawing is the part of the embodiment of the present invention, rather than is all implemented
Example, those skilled in the art without creative efforts, can also obtain other designs according to these attached drawings
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.
Embodiment
Carried out clearly below with reference to the technique effect of the design of embodiment and attached drawing to the present invention, concrete structure and generation
Chu, be fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art is not paying
The other embodiment obtained on the premise of creative work, belongs to the scope of protection of the invention.In addition, be previously mentioned in text
All connection/connection relations, not singly refer to component and directly connect, and refer to be added deduct by adding according to specific implementation situation
Few couple auxiliary, to form more preferably draw bail.Each technical characteristic in the invention, in not conflicting conflict
Under the premise of can be with combination of interactions.
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 terminal of the current transformer 4 are connected 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 connected with the dsp processor by spi bus, the PIC monolithics
The output terminal of machine is connected with the breaker of demarcation switch 5, the input terminal of the dsp processor and the AC sampling module 2
Output terminal connects.
The dsp processor uses the 16 position digital signal controller dsPIC30F6014A of high-performance of Microchip companies
Chip, the chip have the advantages 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：PIC24FJ128GA chips, the peripheral circuit demand of the chip is few, therefore
The cost of overall controller can be greatly reduced using the microcontroller.The dsPIC30F6014A chips and PIC24FJ128GA
Chipset is mutual by spi bus into double-core control structure, the dsPIC30F6014A chips and PIC24FJ128GA chips
Communication.
With reference to figure 2, hardware annexation that dsPIC30F6014A chips and PIC24FJ128GA chips pass through spi bus.
The dsPIC30F6014A chips form 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
State sampling resistor R1 and the current transformer 4 and connect, the scaling circuit 21 includes：Resistance R2, R3, R4, computing are put
The upper end of big device U1, the sampling resistor R1 are connected by resistance R4 with the in-phase input end of the operational amplifier U1, described
The lower end of sampling resistor R1 is connected by resistance R2 with the inverting input of the operational amplifier U1, the operational amplifier U1
Inverting input be connected by the resistance R3 with its output terminal.
The lifting circuit 22 includes：Resistance R5, R6, R7, operational amplifier U2, the computing of the scaling circuit 21
The output terminal of amplifier U1 is connected by resistance R6 with the inverting input of the operational amplifier U2, the operational amplifier U2
In-phase input end be connected by resistance R5 with reference voltage 1.2V, the inverting input of the operational amplifier U2 passes through resistance
R7 is connected with its output terminal.
The A that the current transformer 4 senses, which intersects galvanic electricity and produces sensing electric current I, the sensing electric current I, 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 sensing electric current I of current transformer 4 is convertible into dsp processor
It is required that positive voltage, so as 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
Identifiable electric power signal is changed to, the signal transmission is into 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, so as to cut off user's short trouble and isolate line fault.
The characteristics of boundary switch controller utilizes dsp processor and PIC single chip microcomputer each, by Fourier transformation, these are patrolled
Collect computing to undertake to dsp processor, control generic operation is undertaken to PIC single chip microcomputer, the division of labor is clear and definite, improves response efficiency.Should
Controller can be widely used among 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 transport 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, so as to allow people to know the generation of failure in time, can timely follow up failure.
The better embodiment of the present invention is illustrated above, but the invention is not limited to the implementation
Example, those skilled in the art can also make a variety of equivalent modifications on the premise of without prejudice to spirit of the invention or replace
Change, 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 terminal is connected 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 connected with the dsp processor by spi bus, and the output terminal of the PIC single chip microcomputer is with dividing
The breaker connection of boundary's switch, the input terminal of the dsp processor are connected with the output terminal of the AC sampling module.
A kind of 2. boundary switch controller according to claim 1, it is characterised in that：Wireless transport module is further included, institute
PIC single chip microcomputer is stated to be connected with the wireless transport module by serial ports.
A kind of 3. boundary switch controller according to claim 1 or 2, it is characterised in that：The model of the PIC single chip microcomputer
For：PIC24FJ128GA.
A kind of 4. 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 |
|---|---|---|---|
| CN201810063519.2A CN108023340A (en) | 2018-01-23 | 2018-01-23 | A kind of boundary switch controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810063519.2A CN108023340A (en) | 2018-01-23 | 2018-01-23 | A kind of boundary switch controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108023340A true CN108023340A (en) | 2018-05-11 |
Family
ID=62075263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810063519.2A Pending CN108023340A (en) | 2018-01-23 | 2018-01-23 | A kind of boundary switch controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108023340A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103488114A (en) * | 2013-10-14 | 2014-01-01 | 南京欧格节能科技有限公司 | Dual controller for mining low-pressure feed switch |
| CN104362580A (en) * | 2014-10-17 | 2015-02-18 | 温州大学 | Permanent magnet type double-breakpoint residual current reclose switch |
| CN205157748U (en) * | 2015-11-21 | 2016-04-13 | 北京北秦安全技术有限公司 | Fire control device power monitored control system data acquisition circuit |
| CN206211669U (en) * | 2016-11-29 | 2017-05-31 | 贵州电网有限责任公司培训与评价中心 | A kind of tape jam records the 10kV distribution network overhead line mast switch controllers of ripple |
| CN207743688U (en) * | 2018-01-23 | 2018-08-17 | 佛山科学技术学院 | A kind of boundary switch controller |
-
2018
- 2018-01-23 CN CN201810063519.2A patent/CN108023340A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103488114A (en) * | 2013-10-14 | 2014-01-01 | 南京欧格节能科技有限公司 | Dual controller for mining low-pressure feed switch |
| CN104362580A (en) * | 2014-10-17 | 2015-02-18 | 温州大学 | Permanent magnet type double-breakpoint residual current reclose switch |
| CN205157748U (en) * | 2015-11-21 | 2016-04-13 | 北京北秦安全技术有限公司 | Fire control device power monitored control system data acquisition circuit |
| CN206211669U (en) * | 2016-11-29 | 2017-05-31 | 贵州电网有限责任公司培训与评价中心 | A kind of tape jam records the 10kV distribution network overhead line mast switch controllers of ripple |
| CN207743688U (en) * | 2018-01-23 | 2018-08-17 | 佛山科学技术学院 | A kind of boundary switch controller |
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