CN108899862A - A kind of substation's Distribution Network Failure detection isolation automatic control system - Google Patents
A kind of substation's Distribution Network Failure detection isolation automatic control system Download PDFInfo
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- CN108899862A CN108899862A CN201810641045.5A CN201810641045A CN108899862A CN 108899862 A CN108899862 A CN 108899862A CN 201810641045 A CN201810641045 A CN 201810641045A CN 108899862 A CN108899862 A CN 108899862A
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- Prior art keywords
- module
- distribution section
- fault
- substation
- detection module
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- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
-
- 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
Abstract
The invention discloses a kind of substation's Distribution Network Failures to detect isolation automatic control system,Including the fault detection module being arranged in each substation and controller module,The fault detection module is connected to controller module by communication module,The residual voltage acquisition module is for acquiring residual voltage value in distribution section,Quasi- signal is respectively converted into digital signal through A/D sampling by the analog-to-digital conversion module,And digital signal is transported to embeded processor,The on-off switch is arranged in each distribution section,For controlling the divide-shut brake of the distribution section,The on-off switch is connected to embeded processor by serial ports,The controller module is connected with computer by RS232 interface,The divide-shut brake of failure distribution section can not only timely be controlled,And failure distribution section accurate location can be obtained by locating module,Power failures will not be caused to without failure distribution section.
Description
Technical field
The present invention relates to substation's Distribution Network Failure detection technique field, specially a kind of substation's Distribution Network Failure detection isolation
Automatic control system.
Background technique
Existing Distribution Network Failure detection method is typically all using voltage as failure criterion.Certain in three-phase voltage mutually occurs different
It is judged as that distribution is broken down when often, substation trips at this time, and terminal passes through time-delay closing step by step after substation's reclosing, works as change
When electricity bundle trips again, it can determine whether that the distribution section is fault section.Section of the above scheme for generation singlephase earth fault
It can not achieve Fault Isolation；For there is no the section of failure, when substation secondary reclosing, needs to increase by time-delay closing
The power off time of big non-faulting section.Therefore there is protection blind area and increase asking for non-faulting section power off time in the prior art
Topic.
Application No. is CN201310288398.9 to disclose a kind of isolation control system of grid power distribution fault detection thus, including divides
Closing switch, voltage detection module, residual voltage acquisition module, fault current acquisition module and controller.The present invention is in every
Residual voltage acquisition module set by a distribution section detects the residual voltage in section, is more than limit value when existing
When residual voltage, the case where showing the section there are single-phase earthings, controller can be accurately right based on this residual voltage data
The on-off switch of the section carries out separating brake, to realize the isolation of singlephase earth fault section；The invention is further introduced into event
Barrier electric current is criterion, and when distribution section does not detect fault current, can determining the section, there is no failure, substations
Combined floodgate delay confirmation is needed not move through when reclosing, is directly controlled switch and is closed a floodgate, to reduce the power off time of non-faulting section.
But above scheme still has certain defect, can not accurately obtain whether distribution section breaks down, and needs
Power-off investigation is carried out, will affect the power failure of non-faulting section.
Summary of the invention
The purpose of the present invention is to provide a kind of substation's Distribution Network Failures to detect isolation automatic control system, above-mentioned to solve
The problem of being proposed in background technique.
To achieve the above object, the present invention provides the following technical solutions：A kind of substation's Distribution Network Failure detection isolation is automatic
Control system, including the fault detection module being arranged in each substation and controller module, the fault detection module is logical
It crosses communication module and is connected to controller module, the fault detection module includes embeded processor, on-off switch, positioning mould
Block, analog-to-digital conversion module, voltage detection module, current detection module, fault current acquisition module and residual voltage acquisition module,
The output end difference of the voltage detection module, current detection module, fault current acquisition module and residual voltage acquisition module
It is connected to analog-to-digital conversion module by serial ports, the analog-to-digital conversion module uses AD9528 chip, and AD9528 chip is 14 channels
High-speed driving chip, the voltage detection module is for acquiring three-phase voltage size in distribution section, the current detection module
For acquiring the size of current in distribution section, the fault current acquisition module is for acquiring fault current in distribution section
Value, the residual voltage acquisition module is for acquiring residual voltage value in distribution section, and the analog-to-digital conversion module is by quasi- signal
It is respectively converted into digital signal through A/D sampling, and digital signal is transported to embeded processor, the on-off switch setting
In each distribution section, for controlling the divide-shut brake of the distribution section, the on-off switch is connected to embedded by serial ports
Processor, the controller module are connected with computer by RS232 interface, and the controller module is connected by telephony interface
There is telephone wire.
As advanced optimizing for the technical program, a kind of substation's Distribution Network Failure detection isolation of the present invention automatically controls system
It unites, further includes alarm module in the fault detection module, the alarm module includes buzzer and alarm lamp, buzzer SP type
Number it is selected as LZQ-2715B220V, alarm lamp model is selected as LTE5071J, and the buzzer and alarm lamp are connected to by serial ports
Embeded processor, the embeded processor model MSP430F5438A.
As advanced optimizing for the technical program, a kind of substation's Distribution Network Failure detection isolation of the present invention automatically controls system
System, the communication module are GPRS module, and the fault detection module is connected to controller module by GPRS module.
As advanced optimizing for the technical program, a kind of substation's Distribution Network Failure detection isolation of the present invention automatically controls system
System, the locating module is GPS positioning module, and the output end of locating module is connected with wireless conveyor module, nothing by serial ports
Line conveyor module includes wireless signal transmitter and wireless signal receiver, wireless signal transmitter and wireless signal receiver it
Between by radio connection, wireless signal transmitter model：JY-A4FZ wireless signal receiver model：LoRa6100.
A kind of substation's Distribution Network Failure detection isolation autocontrol method, includes the following steps：
S1：Voltage detection module acquires three-phase voltage value in distribution section, and current detection module acquires in distribution section
Current value, fault current acquisition module acquire fault curre in distribution section, and residual voltage acquisition module acquires distribution section
Middle residual voltage value；
S2：The output of voltage detection module, current detection module, fault current acquisition module and residual voltage acquisition module
End is connected to analog-to-digital conversion module by serial ports respectively, and quasi- signal is respectively converted into number through A/D sampling by analog-to-digital conversion module
Signal, and digital signal is transported to embeded processor；
S3：Embeded processor handles data, and the divide-shut brake of the distribution section is controlled by on-off switch,
And power-off isolation is carried out to the distribution section, auto-alarming is carried out by alarm module；
S4：Fault detection module is connected to controller module by GPRS module, and operator obtains from controller module end
Take the specific location of locating module at embeded processor.
Compared with prior art, the beneficial effects of the invention are as follows：A kind of substation's Distribution Network Failure detection isolation of the present invention is certainly
Autocontrol system, voltage detection module acquire three-phase voltage value in distribution section, and current detection module acquires in distribution section
Current value, fault current acquisition module acquire fault curre in distribution section, and residual voltage acquisition module acquires distribution section
Middle residual voltage value, voltage detection module, current detection module, fault current acquisition module and residual voltage acquisition module it is defeated
Outlet passes through serial ports respectively and is connected to analog-to-digital conversion module, and quasi- signal is respectively converted into number through A/D sampling by analog-to-digital conversion module
Word signal, and digital signal is transported to embeded processor, embeded processor handles data, and passes through divide-shut brake
The divide-shut brake of the switch control distribution section, and power-off isolation is carried out to the distribution section, it is accused automatically by alarm module
Alert, fault detection module is connected to controller module by GPRS module, and operator obtains embedded from controller module end
The specific location of locating module at processor, can not only timely control the divide-shut brake of failure distribution section, and can lead to
It crosses locating module and obtains failure distribution section accurate location, power failures will not be caused to without failure distribution section, have
There is very high practicability, greatly improves a kind of use function of substation's Distribution Network Failure detection isolation automatic control system
Property, guarantee its using effect and utilization benefit, is suitble to be widely popularized.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of substation's Distribution Network Failure detection isolation automatic control system of the present invention；
Fig. 2 is that a kind of fault detection module structure of substation's Distribution Network Failure detection isolation automatic control system of the present invention is shown
It is intended to.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2,：A kind of substation's Distribution Network Failure detection isolation automatic control
System, including the fault detection module being arranged in each substation and controller module, the fault detection module passes through logical
Letter module is connected to controller module, the fault detection module include embeded processor, on-off switch, locating module,
Analog-to-digital conversion module, voltage detection module, current detection module, fault current acquisition module and residual voltage acquisition module, institute
The output end for stating voltage detection module, current detection module, fault current acquisition module and residual voltage acquisition module leads to respectively
It crosses serial ports and is connected to analog-to-digital conversion module, the analog-to-digital conversion module uses AD9528 chip, and AD9528 chip is that 14 channels are high
Fast driving chip, the voltage detection module are used for acquiring three-phase voltage size in distribution section, the current detection module
Size of current in acquisition distribution section, the fault current acquisition module are used to acquire fault curre in distribution section,
The residual voltage acquisition module is for acquiring residual voltage value in distribution section, and the analog-to-digital conversion module is by quasi- signal through A/
D sampling is respectively converted into digital signal, and digital signal is transported to embeded processor, and the on-off switch is arranged every
A distribution section, for controlling the divide-shut brake of the distribution section, the on-off switch is connected to embedded processing by serial ports
Device, the controller module are connected with computer by RS232 interface, and the controller module is connected with electricity by telephony interface
Talk about line.
Specifically, further including alarm module in the fault detection module, the alarm module includes buzzer and alarm
Lamp, buzzer SP model are selected as LZQ-2715B220V, and alarm lamp model is selected as LTE5071J, and the buzzer and alarm lamp are equal
Embeded processor, the embeded processor model MSP430F5438A are connected to by serial ports.
Specifically, the communication module is GPRS module, the fault detection module is connected to control by GPRS module
Device module.
Specifically, the locating module is GPS positioning module, and the output end of locating module is connected with wirelessly by serial ports
Conveyor module, wireless conveyor module include wireless signal transmitter and wireless signal receiver, wireless signal transmitter and wireless
Pass through radio connection, wireless signal transmitter model between signal receiver：JY-A4FZ wireless signal receiver model
For：LoRa6100.
A kind of substation's Distribution Network Failure detection isolation autocontrol method, includes the following steps：
S1：Voltage detection module acquires three-phase voltage value in distribution section, and current detection module acquires in distribution section
Current value, fault current acquisition module acquire fault curre in distribution section, and residual voltage acquisition module acquires distribution section
Middle residual voltage value；
S2：The output of voltage detection module, current detection module, fault current acquisition module and residual voltage acquisition module
End is connected to analog-to-digital conversion module by serial ports respectively, and quasi- signal is respectively converted into number through A/D sampling by analog-to-digital conversion module
Signal, and digital signal is transported to embeded processor；
S3：Embeded processor handles data, and the divide-shut brake of the distribution section is controlled by on-off switch,
And power-off isolation is carried out to the distribution section, auto-alarming is carried out by alarm module；
S4：Fault detection module is connected to controller module by GPRS module, and operator obtains from controller module end
Take the specific location of locating module at embeded processor.
Working principle：A kind of substation's Distribution Network Failure detection isolation automatic control system of the present invention, in use, voltage detecting
Module acquires three-phase voltage value in distribution section, and current detection module acquires the current value in distribution section, fault current acquisition
Module acquires fault curre in distribution section, and residual voltage acquisition module acquires residual voltage value in distribution section, voltage inspection
The output end for surveying module, current detection module, fault current acquisition module and residual voltage acquisition module is connected by serial ports respectively
It is connected to analog-to-digital conversion module, quasi- signal is respectively converted into digital signal through A/D sampling by analog-to-digital conversion module, and by digital signal
It is transported to embeded processor, embeded processor handles data, and controls the distribution section by on-off switch
Divide-shut brake, and power-off isolation is carried out to the distribution section, auto-alarming is carried out by alarm module, fault detection module passes through
GPRS module is connected to controller module, and operator obtains the tool of locating module from embeded processor from controller module end
Body position can not only timely control the divide-shut brake of failure distribution section, and can obtain failure by locating module and match
Barrier section accurate location, will not cause power failures to without failure distribution section.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of substation's Distribution Network Failure detection isolation automatic control system, including the fault detection being arranged in each substation
Module and controller module, it is characterised in that：The fault detection module is connected to controller module by communication module, described
Fault detection module includes embeded processor, on-off switch, locating module, analog-to-digital conversion module, voltage detection module, electricity
Flow detection module, fault current acquisition module and residual voltage acquisition module, the voltage detection module, current detection module,
The output end of fault current acquisition module and residual voltage acquisition module passes through serial ports respectively and is connected to analog-to-digital conversion module, described
Analog-to-digital conversion module uses AD9528 chip, and AD9528 chip is 14 channel high-speed driving chips, and the voltage detection module is used
The three-phase voltage size in acquisition distribution section, the current detection module are used to acquire the size of current in distribution section, institute
It states fault current acquisition module and matches for acquiring fault curre in distribution section, the residual voltage acquisition module for acquiring
Residual voltage value in the section of barrier, quasi- signal is respectively converted into digital signal through A/D sampling by the analog-to-digital conversion module, and will be counted
Word signal is transported to embeded processor, and the on-off switch is arranged in each distribution section, for controlling the distribution section
Divide-shut brake, the on-off switch is connected to embeded processor by serial ports, and the controller module passes through RS232 interface
It is connected with computer, the controller module is connected with telephone wire by telephony interface.
2. a kind of substation's Distribution Network Failure detection isolation automatic control system according to claim 1, it is characterised in that：Institute
Stating further includes alarm module in fault detection module, and the alarm module includes buzzer and alarm lamp, the choosing of buzzer SP model
For LZQ-2715B220V, alarm lamp model is selected as LTE5071J, and the buzzer and alarm lamp pass through serial ports and be connected to insertion
Formula processor, the embeded processor model MSP430F5438A.
3. a kind of substation's Distribution Network Failure detection isolation automatic control system according to claim 1, it is characterised in that：Institute
Stating communication module is GPRS module, and the fault detection module is connected to controller module by GPRS module.
4. a kind of substation's Distribution Network Failure detection isolation automatic control system according to claim 1, it is characterised in that：Institute
Stating locating module is GPS positioning module, and the output end of locating module is connected with wireless conveyor module by serial ports, wireless to convey
Module includes wireless signal transmitter and wireless signal receiver, is passed through between wireless signal transmitter and wireless signal receiver
Radio connection, wireless signal transmitter model：JY-A4FZ wireless signal receiver model：LoRa6100.
5. substation's Distribution Network Failure detection isolation autocontrol method described in a kind of -7 any one according to claim 1,
It is characterized in that, includes the following steps：
S1：Voltage detection module acquires three-phase voltage value in distribution section, and current detection module acquires the electric current in distribution section
Value, fault current acquisition module acquire fault curre in distribution section, and residual voltage acquisition module acquires zero in distribution section
Sequence voltage value；
S2：Voltage detection module, current detection module, fault current acquisition module and residual voltage acquisition module output end point
Analog-to-digital conversion module is not connected to by serial ports, quasi- signal is respectively converted into digital signal through A/D sampling by analog-to-digital conversion module,
And digital signal is transported to embeded processor；
S3：Embeded processor handles data, and the divide-shut brake of the distribution section is controlled by on-off switch, and right
The distribution section carries out power-off isolation, carries out auto-alarming by alarm module；
S4：Fault detection module is connected to controller module by GPRS module, and operator obtains embedding from controller module end
Enter the specific location of locating module at formula processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641045.5A CN108899862A (en) | 2018-06-21 | 2018-06-21 | A kind of substation's Distribution Network Failure detection isolation automatic control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641045.5A CN108899862A (en) | 2018-06-21 | 2018-06-21 | A kind of substation's Distribution Network Failure detection isolation automatic control system |
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| CN108899862A true CN108899862A (en) | 2018-11-27 |
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| CN201810641045.5A Pending CN108899862A (en) | 2018-06-21 | 2018-06-21 | A kind of substation's Distribution Network Failure detection isolation automatic control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806520A (en) * | 2019-10-29 | 2020-02-18 | 北京鑫泰绿能科技有限公司 | Photovoltaic power plant fault detection system |
| CN111323671A (en) * | 2020-04-14 | 2020-06-23 | 国网湖北省电力有限公司武汉市新洲区供电公司 | Fault classifier for transient detection of power distribution system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384062A (en) * | 2013-07-10 | 2013-11-06 | 珠海许继芝电网自动化有限公司 | Isolation control system of grid power distribution fault detection |
| CN105281304A (en) * | 2015-12-02 | 2016-01-27 | 国网上海市电力公司 | Quick feeder fault positioning and isolating method |
| CN107290626A (en) * | 2017-06-28 | 2017-10-24 | 合肥市闵葵电力工程有限公司 | A kind of power line monitoring system |
| CN206818806U (en) * | 2017-04-01 | 2017-12-29 | 崔玉林 | A kind of electrical equipment malfunction automatic checking device |
-
2018
- 2018-06-21 CN CN201810641045.5A patent/CN108899862A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384062A (en) * | 2013-07-10 | 2013-11-06 | 珠海许继芝电网自动化有限公司 | Isolation control system of grid power distribution fault detection |
| CN105281304A (en) * | 2015-12-02 | 2016-01-27 | 国网上海市电力公司 | Quick feeder fault positioning and isolating method |
| CN206818806U (en) * | 2017-04-01 | 2017-12-29 | 崔玉林 | A kind of electrical equipment malfunction automatic checking device |
| CN107290626A (en) * | 2017-06-28 | 2017-10-24 | 合肥市闵葵电力工程有限公司 | A kind of power line monitoring system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806520A (en) * | 2019-10-29 | 2020-02-18 | 北京鑫泰绿能科技有限公司 | Photovoltaic power plant fault detection system |
| CN111323671A (en) * | 2020-04-14 | 2020-06-23 | 国网湖北省电力有限公司武汉市新洲区供电公司 | Fault classifier for transient detection of power distribution system |
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