CN107561412A - A kind of quick feeder fault location of power automation and shielding system and method - Google Patents
A kind of quick feeder fault location of power automation and shielding system and method Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 238000004891 communication Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 12
- 230000011664 signaling Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 11
- 238000002955 isolation Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
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- 101100149782 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) vsp-5 gene Proteins 0.000 description 1
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- 239000013307 optical fiber Substances 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The invention discloses a kind of quick feeder fault location of power automation and shielding system, including intellectualized switchgear, controller, main website and hardware encryption module；Described intellectualized switchgear includes switch, PT and line feed terminals；Controller passes information to hardware encryption module after gathering the information of switch, PT and line feed terminals respectively, hardware encryption module carries out information transmission with main website by wireless transmission method, after main website is analyzed information, exported and ordered to intellectualized switchgear by controller.The present invention allows distribution line to have the function of centralized Control handling failure, also possesses the great ability independent of communication can automatic discrimination, handling failure simultaneously, and there is investment economy, build the advantages such as quick, operation and maintenance is convenient, it can be widely applied to the Distribution Automation Construction in various regions.
Description
Technical field
The invention belongs to Distribution Automation Technology field, is related to a kind of adaptive failure isolation mode, is related specifically to one
The quick feeder fault location of kind power automation and shielding system and method.
Background technology
The line city of China two or three and rural area generally existing 10kV distribution lines are long, branch line is more, equipment is more old,
The features such as singlephase earth fault probability of happening is high.Because the mode of connection of local transformer station 10kV bus neutral points is mostly through disappearing
Arc coil is grounded, so occurring that during earth fault failure can not be eliminated in time, and is easily caused while failure occurs non-
Faulty equipment insulation breakdown causes larger range of failure face to occur.Therefore how to solve 10kV distribution earth faults it is automatic every
From and recover the power transmission of non-faulting section, it has also become the current technical bottleneck urgently to be resolved hurrily of distrbution network.
Main website centralized Control type Fault Isolation pattern is FEEDER AUTOMATION, dependent on main website, is adopted by live FTU/DTU
Collect fault current information, and pass to main website, by main website according to distribution network topology and its information collected, carry out failure and determine
Position, isolation restore electricity with non-faulting region.The complexity of the distribution network troubleshooting not only complexity with primary network in itself
Property it is related, and be closely related with secondary automation equipment, communication equipment.Different in the period of and place, distribution network configuration
These automation equipments and communication equipment diversified state is presented, carrying the software of algorithm needs to adapt to different times in history
Otherness between different types of communication network for putting into operation, different qualities terminal, the data for these terminals collection being collected into
Content, markers, quality, quantity are all not quite similar.If in the calculating that these factors are considered to algorithm, the dimension of control algolithm will be made
Number is huger, and the realization and checking to algorithm all bring bigger challenge.And distribution network is directly connected to user's
Electrical Safety, the deviation of algorithm performs result, which has, causes the power failure of non-faulting area, faulty section expansion, threat equipment and maintainer to pacify
It is congruent dangerous.
Control Fault Isolation pattern is when there is protection reclosing to failure electric current again according to transformer station on the spot
Between determine fault zone.Due to not being in communication with each other between its control device, the electrical quantity trigger action being completely dependent on feeder line,
The function of Fault Isolation is completed by time cooperation, so with extremely strong live adaptability.But its isolation needs transformer station
Repeatedly tripping operation is coordinated, and easily equipment and line cord are impacted and trigger potential safety hazard.
The content of the invention
According to above-mentioned deficiency, positioned the invention provides one kind independent of main website communication can, isolated fault, simultaneously
Number of shocks of the short circuit current to power network, the positioning of application solutions distribution fault, isolated fault and recovery non-faulting area can be reduced
The method of domain power supply.
To achieve these goals, concrete technical scheme is as follows：
A kind of quick feeder fault location of power automation and shielding system, including intellectualized switchgear, controller, master
Stand and hardware encryption module, the main website connect with controller signals, the controller connects with intellectualized switchgear signal, institute
Hardware encryption module is stated to be arranged between main website and controller；Described intellectualized switchgear includes switch, PT and line feed terminals,
Switch and line feed terminals are connected on three-phase line, and PT is connected in parallel on switching line trackside；Controller gathers switch, PT and feeder line respectively
Hardware encryption module is passed information to after the information of terminal, hardware encryption module is entered row information by wireless transmission method with main website and passed
Pass, after main website is analyzed information, exported and ordered to intellectualized switchgear by controller.
On this architecture basics, when circuit breaks down, intellectualized switchgear can pass on fault message to main website,
When transmitting fault information fails, main website can still export and perform order；Meanwhile hardware encryption module is embedded or is hung on intellectuality outside
Switchgear, to providing the functions such as encryption and decryption, authentication and integrity checking with network packet.
Further, in addition to current transformer, described current transformer are connected on three-phase line；Described control
Device includes AC power input module, power conversion module, power supply handover module, management of charging and discharging module, power storage module, low electricity
Press protection module, main control module, switch control module, analogue collection module, remote signalling amount acquisition module, DC quantity collection mould
Block, guidance panel module, wireless communication module, control output module, coil and output driving interface module；AC power inputs
Module is powered by power conversion module to charge-discharge modules, main control module and switch control module, and power storage module passes through charge and discharge
Electric management module carries out electric power storage；Power storage module is entered by management of charging and discharging module to under-voltage protection module and switch control module
Row power supply, management of charging and discharging module are powered by power conversion module to main control module；Main control module connects wirelessly respectively
Communication module and guidance panel module, main control module carry out information transmission by wireless communication module and main website；Main control module connects
Receive the information collected from analogue collection module, remote signalling amount acquisition module, DC quantity acquisition module；Main control module passes through control
Output module processed is controlled to switch control module；After power supply handover module switches over the power supply of alternating current input module
It is powered to coil, switch control module is connected with coil；The one of analogue collection module collection Current Transformer Secondary side
Secondary line voltage, current signal, described remote signalling amount acquisition module collection switch state signal, described DC quantity acquisition module
Line voltage distribution, a current signal of collection voltages transformer secondary side.
Further, described switch includes voltage-time type switching station and voltage x current type switching station, described voltage
Time type switching station is arranged on backbone, and described voltage x current type switching station is arranged on branch line
Further, described hardware encryption module is attached with controller by RS232 interface.
Further, described hardware encryption module is connected by GPRS/CDMA network modes with main website, and the connected mode is used
In public network.
Further, described hardware encryption module is connected by RJ45 network interfaces with main website, and the connected mode is used for light
Fine private network.
Described PT uses three-phase five-limb PT and individual event PT, wherein three-phase five-limb PT to be arranged on mains side, single
Item PT is arranged on current side.
Described hardware encryption module is powered by the power conversion module of controller.
A kind of quick feeder fault location of power automation and partition method, comprise the following steps：
(1) after failure in circuit, line tripping, each intellectualized switchgear in circuit is to main website transmission line fault letter
Breath；After main website is analyzed false voltage, current information, it is phase fault or single-phase earthing event to judge event circuit
Barrier；
(2) if in step (1), main station judging circuit is phase fault, Intellectualized Switchgear of the main website to failure both ends
Switch sends block signal, recovers the power supply of non-faulting section；
(3) if in step (1), main station judging circuit is singlephase earth fault, circuit initial end reclosing, and to the intelligence in circuit
Can switchgear carry out power transmission step by step, until detect residual voltage, at the same to trouble point both ends can only switching station switch
Locking is carried out, recovers the power supply of non-faulting section；
(4) in step (1), when main website can not receive the signal of intelligent switching station, circuit initial end reclosing, and to circuit
In intellectualized switchgear carry out power transmission step by step, until circuit trips again during power transmission to trouble point, while to trouble point
The switch of the intellectualized switchgear at both ends carries out locking, recovers the power supply of non-faulting section.
Further, after the switch progress locking to the intellectualized switchgear at faulty section both ends, circuit initial end is again
Power transmission, line terminal carry out reverse power transmission to non-faulting section, recover the power supply of non-faulting section.
The advantage of the invention is that：
1. the present invention allows distribution line to have the function of centralized Control handling failure, while also possesses independent of communication can certainly
Dynamic differentiation, the great ability of handling failure, and there is investment economy, build the advantages such as quick, operation and maintenance is convenient, can be wide
The general Distribution Automation Construction applied to various regions；
2. the Fault Isolation time is quick, the average isolated fault time is two minutes, is the hundred times of Traditional Man Fault Isolation, and
Accurate positioning, cost of labor is saved, repairing human casualty accident is reduced, improves feeder line security, greatly improves social economy
Benefit；
3. by way of increasing hardware encryption module, realize that the three of intelligent switching station shakes application, can real-time monitoring intelligent Switching
Switching value, quantity of state, and when failure occurs remote-controlled intelligent circuit breaker lock carry out Fault Isolation.
Brief description of the drawings
Fig. 1 is a kind of quick feeder fault location of power automation of the present invention and the structural representation of shielding system；
Fig. 2 is a kind of quick feeder fault location of power automation of the present invention and the situation map of partition method；
Fig. 3 is a kind of quick feeder fault location of power automation of the present invention and the controller architecture schematic diagram of shielding system.
Specific embodiment
Below in conjunction with accompanying drawing and subordinate list, the present invention is described in detail：
The quick feeder fault location of a kind of power automation as shown in Figure 1 and shielding system, including intelligent switch are set
Standby, controller, main website, hardware encryption module summation current transformer, the main website connect with controller signals, the controller and intelligence
The device signal connection of energy Switching, the hardware encryption module are arranged between main website and controller；Described intelligent switch is set
Standby to include switch, PT and line feed terminals, switch, line feed terminals summation current transformer are connected on three-phase line, and PT is connected in parallel on out
Close line side；Controller passes information to hardware encryption module, hardware encryption after gathering the information of switch, PT and line feed terminals respectively
Module and main website carry out information transmission by wireless transmission method, after main website is analyzed information, by controller to intelligence
The output order of Switching equipment；Line voltage distribution is converted into after 9-36V to hardware encryption mould by controller by its photovoltaic conversion module
Block is powered, and hardware encryption module is attached with controller by RS232 interface；The remote signalling amount acquisition module collection switch of controller
Status signal, line voltage distribution, a current signal of the DC quantity acquisition module collection PT secondary sides of controller；In public network environment
Under, hardware encryption module is connected by GPRS/CDMA network modes with main website；Under optical fiber private network environment, hardware encryption module passes through
RJ45 network interfaces are connected with main website.
As shown in figure 3, controller includes AC power input module, power conversion module, power supply handover module, discharge and recharge
Management module, power storage module, under-voltage protection module, main control module, switch control module, analogue collection module, remote signalling amount
Acquisition module, DC quantity acquisition module, guidance panel module, wireless communication module, control output module, coil and output driving
Interface module；AC power input module is by power conversion module to charge-discharge modules, main control module and switch control module
Power supply, power storage module carry out electric power storage by management of charging and discharging module；Power storage module is protected by management of charging and discharging module to low-voltage
Shield module and switch control module are powered, and management of charging and discharging module is supplied main control module by power conversion module
Electricity；Main control module connects wireless communication module and guidance panel module respectively, and main control module passes through wireless communication module and main website
Carry out information transmission；Main control module is received from analogue collection module, remote signalling amount acquisition module, the collection of DC quantity acquisition module
The information arrived；Main control module is by controlling output module to be controlled switch control module；Power supply handover module is by alternating current
The power supply of input module switches over backward coil and is powered, and switch control module is connected with coil；Analogue collection module
Gather line voltage distribution, a current signal of Current Transformer Secondary side, described remote signalling amount acquisition module collection on off state
Signal, line voltage distribution, a current signal of described DC quantity acquisition module collection voltages transformer secondary side.
The main control module of controller is attached with wireless communication module and guidance panel module by DV9 interfaces, meanwhile,
Main control module uses MPC8247 chips, analogue collection module, remote signalling amount acquisition module, DC quantity acquisition module collection information
Main control module is directly accessed by contact pin afterwards；Power conversion module turns 24V Switching Power Supplies by 220V and 24V turns 5V Switching Power Supply groups
Turn into, 220V after the 200V alternating currents of AC power input module switch to 24V by 24V Switching Power Supplies, to management of charging and discharging module,
Switch control module, 24V turn 5V Switching Power Supplies and hardware encryption module for power supply；24V turns 5V Switching Power Supplies and 220V is turned into 24V switch electricity
After the 24V of source and management of charging and discharging module points switch to 5V, powered to main control module；Wherein 220V turns the use of 24V Switching Power Supplies
The technical grade module of the 150W bright latitude in Taiwan, nominal input voltage condition are：165VAC~265VAC；24V turns 5V Switching Power Supplies
Using dc-dc；Charge-discharge modules are 24V management of charging and discharging modules, using LCA220D24W300D；Power storage module voltage
For 24V, using 24V7AH lead acid storage battery batteries；Under-voltage protection module is connected when voltage is less than 22V with master control system, and
Fault message is uploaded into master control system, it is ensured that power storage module will not be damaged, and voltage will not be too low.
Hardware encryption module uses the HR YD-3000 terminal security modules of the auspicious information technology share Co., Ltd of letter of Zhuhai City.
PT uses three-phase five-limb PT and individual event PT, wherein three-phase five-limb PT to be arranged on mains side, and individual event PT is set
Put in current side；Switch includes voltage-time type switching station and the opening and closing of voltage x current type, and voltage-time type switching station is arranged on master
On main line, voltage x current type switching station is arranged on branch line.
Described intellectualized switchgear is provided by Beijing Creative Distribution Automation Co., Ltd., and specific switch is
FZW28-12 (VSP5) vacuum load switch body, PT are SPS2-10/0.22 power transformers, line feed terminals FDR-115/
FSE intelligent FTUs.
A kind of quick feeder fault location of power automation and failure separation method as shown in Figure 2, comprises the following steps：
(1) after failure in circuit, line tripping, each intellectualized switchgear in circuit is to main website transmission line fault letter
Breath；After main website is analyzed false voltage, current information, it is phase fault or single-phase earthing event to judge event circuit
Barrier；
(2) if in step (1), main station judging circuit is phase fault, Intellectualized Switchgear of the main website to failure both ends
Switch sends block signal, and power transmission, line terminal carry out reverse power transmission to circuit initial end to non-faulting section again, recover non-faulting
Section power supply；
(3) if in step (1), main station judging circuit is singlephase earth fault, circuit initial end reclosing, and to the intelligence in circuit
Can switchgear carry out power transmission step by step, until detect residual voltage, at the same to trouble point both ends can only switching station switch
Locking is carried out, power transmission, line terminal carry out reverse power transmission to circuit initial end to non-faulting section again, recover the power supply of non-faulting section；
(4) in step (1), when main website can not receive the signal of intelligent switching station, circuit initial end reclosing, and to circuit
In intellectualized switchgear carry out power transmission step by step, until circuit trips again during power transmission to trouble point, while to trouble point
The switch of the intellectualized switchgear at both ends carries out locking, and power transmission, line terminal are carried out circuit initial end to non-faulting section again
Reverse power transmission, recover the power supply of non-faulting section.
Although specific embodiments of the present invention are described in detail and illustrated above, it should be noted that
We can make various changes and modifications to the embodiment above, but these without departure from the present invention spiritual and appended power
Profit requires described scope.
Claims (10)
1. a kind of quick feeder fault location of power automation and shielding system, it is characterised in that including intellectualized switchgear,
Controller, main website and hardware encryption module, the main website connect with controller signals, controller and the intellectualized switchgear letter
Number connection, the hardware encryption module is arranged between main website and controller；Described intellectualized switchgear include switch, PT and
Line feed terminals, switch and line feed terminals are connected on three-phase line, and PT is connected in parallel on switching line trackside；Controller gathers out respectively
Hardware encryption module is passed information to after the information of pass, PT and line feed terminals, hardware encryption module passes through the side of being wirelessly transferred with main website
Formula carries out information transmission, after main website is analyzed information, is exported and ordered to intellectualized switchgear by controller.
2. a kind of quick feeder fault location of power automation according to claim 1 and shielding system, it is characterised in that
Also include current transformer, described current transformer is connected on three-phase line；It is defeated that described controller includes AC power
Enter module, power conversion module, power supply handover module, management of charging and discharging module, power storage module, under-voltage protection module, master control
Module, switch control module, analogue collection module, remote signalling amount acquisition module, DC quantity acquisition module, guidance panel module,
Wireless communication module, control output module, coil and output driving interface module；AC power input module passes through power conversion
Module is powered to charge-discharge modules, main control module and switch control module, and power storage module is stored by management of charging and discharging module
Electricity；Power storage module is powered by management of charging and discharging module to under-voltage protection module and switch control module, charge and discharge fulgurite
Reason module is powered by power conversion module to main control module；Main control module connects wireless communication module and operating surface respectively
Plate module, main control module carry out information transmission by wireless communication module and main website；Main control module receives and comes from analog acquisition
The information that module, remote signalling amount acquisition module, DC quantity acquisition module collect；Main control module is by controlling output module to switch
Control module is controlled；The power supply of alternating current input module is switched over backward coil and is powered by power supply handover module,
Switch control module is connected with coil；Line voltage distribution, an electric current of analogue collection module collection Current Transformer Secondary side
Signal, described remote signalling amount acquisition module collection switch state signal, described DC quantity acquisition module collection voltages transformer
Line voltage distribution, a current signal of secondary side.
3. a kind of quick feeder fault location of power automation according to claim 1 and shielding system, it is characterised in that
Voltage-time type switching station included by described switch and voltage x current type switching station, described voltage-time type opening and closing set by
On backbone, described voltage x current type switching station is arranged on branch line.
4. a kind of quick feeder fault location of power automation according to claim 1 and shielding system, it is characterised in that
Described hardware encryption module is attached with controller by RS232 interface.
5. a kind of quick feeder fault location of power automation according to claim 2 and shielding system, it is characterised in that
Described hardware encryption module is connected by GPRS/CDMA network modes with main website.
6. a kind of quick feeder fault location of power automation according to claim 2 and shielding system, it is characterised in that
Described hardware encryption module is connected by RJ45 network interfaces with main website.
7. a kind of quick feeder fault location of power automation according to claim 1 and shielding system, it is characterised in that
Described PT uses three-phase five-limb PT and individual event PT, wherein three-phase five-limb PT to be arranged on mains side, and individual event PT is set
In current side.
8. a kind of quick feeder fault location of power automation according to claim 2 and shielding system, it is characterised in that
Described hardware encryption module is powered by the power conversion module of controller.
9. a kind of quick feeder fault location of power automation and partition method, it is characterised in that comprise the following steps：
(1) after failure in circuit, line tripping, each intellectualized switchgear in circuit is to main website transmission line fault letter
Breath；After main website is analyzed false voltage, current information, it is phase fault or single-phase earthing event to judge event circuit
Barrier；
(2) if in step (1), main station judging circuit is phase fault, Intellectualized Switchgear of the main website to failure both ends
Switch sends block signal, recovers the power supply of non-faulting section；
(3) if in step (1), main station judging circuit is singlephase earth fault, circuit initial end reclosing, and to the intelligence in circuit
Can switchgear carry out power transmission step by step, until detect residual voltage, at the same to trouble point both ends can only switching station switch
Locking is carried out, recovers the power supply of non-faulting section；
(4) in step (1), when main website can not receive the signal of intelligent switching station, circuit initial end reclosing, and to circuit
In intellectualized switchgear carry out power transmission step by step, until circuit trips again during power transmission to trouble point, while to trouble point
The switch of the intellectualized switchgear at both ends carries out locking, recovers the power supply of non-faulting section.
10. a kind of quick feeder fault location of power automation according to claim 9 and partition method, its feature exist
In, after carrying out locking to the switch of the intellectualized switchgear at faulty section both ends, circuit initial end power transmission again, line terminal pair
Non-faulting section carries out reverse power transmission, recovers the power supply of non-faulting section.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347093A (en) * | 2018-10-18 | 2019-02-15 | 南京南瑞继保电气有限公司 | A kind of main website and the self-healing control method of distribution network for controlling combination on the spot |
| CN109599946A (en) * | 2018-12-05 | 2019-04-09 | 珠海博威电气股份有限公司 | A kind of Efficient fault diagnostic method of power distribution automation switch |
| CN111913074A (en) * | 2020-08-06 | 2020-11-10 | 浙江华电器材检测研究所有限公司 | Power distribution automation equipment detection method and system |
| CN112083784A (en) * | 2020-07-23 | 2020-12-15 | 广西电网有限责任公司电力科学研究院 | Power-down time sequence circuit of power distribution terminal |
| CN114397835A (en) * | 2021-12-17 | 2022-04-26 | 保定市冀能电力自动化设备有限公司 | Intelligent switch control system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483337A (en) * | 2009-02-25 | 2009-07-15 | 北京盛华宏业科技有限公司 | Failure automatic diagnosis and separation apparatus and method for power distribution network overhead line |
| CN201742166U (en) * | 2010-06-29 | 2011-02-09 | 武汉百叡电力技术有限公司 | Intelligent switch integrated with function of feeder terminal unit (FTU) |
| CN202183639U (en) * | 2011-08-29 | 2012-04-04 | 平阳电力有限责任公司 | Intelligent switch and fault isolation system of distribution network line |
| CN103001193A (en) * | 2012-11-13 | 2013-03-27 | 山东电力集团公司济南供电公司 | Centralized feeder automation control method for demarcation fault processing |
| CN203674702U (en) * | 2013-09-25 | 2014-06-25 | 国家电网公司 | Electric power distribution line short circuit fault isolation system |
| CN105449865A (en) * | 2015-12-17 | 2016-03-30 | 南京因泰莱电器股份有限公司 | Intelligent (feeder terminal unit) FTU used for fault positioning and isolating for distribution network |
| CN207281229U (en) * | 2017-09-30 | 2018-04-27 | 广西电网有限责任公司南宁供电局 | A kind of quick feeder fault location of power automation and shielding system |
-
2017
- 2017-09-30 CN CN201710923639.0A patent/CN107561412A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483337A (en) * | 2009-02-25 | 2009-07-15 | 北京盛华宏业科技有限公司 | Failure automatic diagnosis and separation apparatus and method for power distribution network overhead line |
| CN201742166U (en) * | 2010-06-29 | 2011-02-09 | 武汉百叡电力技术有限公司 | Intelligent switch integrated with function of feeder terminal unit (FTU) |
| CN202183639U (en) * | 2011-08-29 | 2012-04-04 | 平阳电力有限责任公司 | Intelligent switch and fault isolation system of distribution network line |
| CN103001193A (en) * | 2012-11-13 | 2013-03-27 | 山东电力集团公司济南供电公司 | Centralized feeder automation control method for demarcation fault processing |
| CN203674702U (en) * | 2013-09-25 | 2014-06-25 | 国家电网公司 | Electric power distribution line short circuit fault isolation system |
| CN105449865A (en) * | 2015-12-17 | 2016-03-30 | 南京因泰莱电器股份有限公司 | Intelligent (feeder terminal unit) FTU used for fault positioning and isolating for distribution network |
| CN207281229U (en) * | 2017-09-30 | 2018-04-27 | 广西电网有限责任公司南宁供电局 | A kind of quick feeder fault location of power automation and shielding system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347093A (en) * | 2018-10-18 | 2019-02-15 | 南京南瑞继保电气有限公司 | A kind of main website and the self-healing control method of distribution network for controlling combination on the spot |
| CN109347093B (en) * | 2018-10-18 | 2022-07-22 | 南京南瑞继保电气有限公司 | Power distribution network self-healing control method combining master station with local control |
| CN109599946A (en) * | 2018-12-05 | 2019-04-09 | 珠海博威电气股份有限公司 | A kind of Efficient fault diagnostic method of power distribution automation switch |
| CN112083784A (en) * | 2020-07-23 | 2020-12-15 | 广西电网有限责任公司电力科学研究院 | Power-down time sequence circuit of power distribution terminal |
| CN112083784B (en) * | 2020-07-23 | 2022-09-20 | 广西电网有限责任公司电力科学研究院 | Power-down time sequence circuit of power distribution terminal |
| CN111913074A (en) * | 2020-08-06 | 2020-11-10 | 浙江华电器材检测研究所有限公司 | Power distribution automation equipment detection method and system |
| CN114397835A (en) * | 2021-12-17 | 2022-04-26 | 保定市冀能电力自动化设备有限公司 | Intelligent switch control system |
| CN114397835B (en) * | 2021-12-17 | 2024-01-26 | 保定市冀能电力自动化设备有限公司 | Intelligent switch control system |
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