CN105932635B - A kind of method of intelligent distributed FA systems fast recovery of power supply - Google Patents
A kind of method of intelligent distributed FA systems fast recovery of power supply Download PDFInfo
- Publication number
- CN105932635B CN105932635B CN201610242512.8A CN201610242512A CN105932635B CN 105932635 B CN105932635 B CN 105932635B CN 201610242512 A CN201610242512 A CN 201610242512A CN 105932635 B CN105932635 B CN 105932635B
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- Prior art keywords
- switch
- local
- separating brake
- fault
- power supply
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
-
- 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
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of methods of intelligent distributed FA systems fast recovery of power supply, after FA programs start, detect " the virtual remote signalling " of fault current according to whether local switch receives adjacent switch downstream within the W time limits or detect that local voltage and current restores combined floodgate, gate-dividing state that control locally switchs.The present invention is ingenious in design; the information content of required transmission is less; line switching type is on-load switch or breaker; the program can be fitted close therewith; will not have an adverse effect to powering mode or relay protective scheme; fault section isolation can be reliably carried out when permanent fault occurs and carries out turning to supply, so as to fulfill fast recovery of power supply.The original powering mode of recovery not having a power failure will be realized after troubleshooting in conjunction with " electric logic is changed in cyclization ".
Description
Technical field
The present invention relates to system for distribution network of power fields, and in particular to a kind of intelligent distributed FA systems fast recovery of power supply
Method.
Background technology
At present, requirement of the distribution network users to power supply reliability is continuously improved, it is desirable to and fault clearing time is as few as possible, therefore
It is as small as possible to hinder coverage.Therefore the distributed FA systems based on peer-to-peer communications become the heat of each the relevant technologies unit research
Point, and respectively propose some logical algorithms.
The fault message for being mainly characterized by collecting adjacent switch based on peer-to-peer communications of such algorithm, judges currently to open with this
Gate-dividing state or "on" position should be in next step by closing；Such algorithm usually requires to collect a large amount of adjacent switch failure letter
Breath, and there is a situation where to coordinate with defencive function and disconnect.
Invention content
In view of the above-mentioned problems, the present invention provides a kind of fault message for relying primarily on current switch, it is less to be opened using adjacent
The fault message of pass, and can be with the method for the intelligent distributed FA systems fast recovery of power supply of defencive function seamless connection.
To solve the above problems, the technical solution that the present invention takes is：A kind of fast quick-recovery of intelligent distributed FA systems supplies
The method of electricity, includes the following steps：
Step 1: FA programs start, if local switch detects phase fault electric current, start W (Wait) quantum clock
When, while " the virtual remote signalling " of fault current is actively detected to its upstream adjacent switch transmission, enter step two；Otherwise enter
Step 5；
Step 2: if local switch receives adjacent switch downstream within the W time limits detects the " virtual distant of fault current
Letter " detects that local voltage and current restores, then separating brake when being latched W quantum clocks, whens W quantum clocks arrive after enter step 3；If this
Ground switch does not receive adjacent switch downstream within the W time limits and detects that local electricity is also not detected in " the virtual remote signalling " of fault current
Current voltage restores, then separating brake when not being latched W quantum clocks, whens W quantum clocks arrive after enter step 4；
If local switch receives " virtual remote signalling " within the W time limits shows that the adjacent a certain switch in downstream also detects that failure electricity
Stream illustrates that not needing to the local separating brake that switchs is isolated fault section, can be isolated fault section by downstream switches；
If detecting that local voltage and current restores, illustrate reclosing success, failure is transient fault, do not need to fault section into
Row isolation so needing to be latched separating brake, shows no longer to need to carry out sub-switching operation to rear local switch when W quantum clocks, only
It needs just to need separating brake during isolated fault.
Step 3: the local position of the switch is detected after D (Delay) time limits are delayed, if locally switch is in "on" position
Its combined floodgate is kept, controls its combined floodgate if locally switch is in gate-dividing state, FA programs return；The D time limits, which set, need to ensure failure
Section source-side switches have enough time separating brake to complete the isolation of fault section；
Step 4: the local position of the switch of detection, its separating brake is kept if locally switch is in gate-dividing state, if local switch
In "on" position then confirm it is local without pressure without stream after control its separating brake, while separating brake is required to the transmission of adjacent switch downstream
Information, FA programs return；
If there is no locking sub-gate signals for local switch, that is to say, that is that local switch does not receive adjacent downstream open
" the virtual remote signalling " closed also is not detected local voltage and current and restores, and is shown to be unsuccessful reclosing, which belongs to permanent event
Barrier, and trouble point is just behind locally switching, before the adjacent switch of downstream, because electric current is from power supply to load one direction
Flowing, if short trouble has occurred in certain point, then the switch behind trouble point will not detect fault current, also would not
It sends out " virtual remote signalling ", since confirming that point occurs for failure just behind locally switch, before the adjacent switch of downstream, it is therefore desirable to this
Ground switchs and fault section isolation is realized in adjacent switch cooperation in downstream.
If Step 5: local switch receives its upstream adjacent switch requirement separating brake information, after confirming local without pressing without stream
Its separating brake, the local position of the switch is controlled to restore electricity after confirming reliable separating brake to interconnection switch photos and sending messages requirement combined floodgate, FA programs
It returns.
The W time limits are more than the circuit re-switching time limit.To shorten power off time, the W time limits are when more than circuit re-switching
What should be set under the premise of limit is short as possible.Whether the W time limits are in order to power and can restore after observing reclosing, if cannot restore
But " the virtual remote signalling " for receiving downstream adjacent switch shows that downstream adjacent switch also detects that fault current, then according to electric current
Flow behavior, it is possible to judgement does not need to local switch and carries out fault section isolation, but by downstream adjacent switch or more lower
The switch of trip realizes the isolation of fault section.That is, it is if failure is that the W time limits, which are more than the reason of circuit re-switching time limit,
" transient fault " can restore electricity after reclosing, not need to start breaking-closing operating, if failure is " permanent fault ",
Breaking-closing operating can just be started after unsuccessful reclosing, fault section is isolated and is restored electricity, in short, the W time limits
Setting need to be more than the circuit re-switching time limit to avoid reclosing operation.
The D time limits are more than the opening time of fault section source-side switches.To shorten power off time, the D time limits are big
What should be set under the premise of fault section source-side switches opening time is short as possible, to shorten power off time.
The D time limits are in order to which the switch to fault section mains side has enough opening times, it is ensured that failure when restoring electricity
Section is completely isolated, and avoiding closing a floodgate meets in failure and cause to trip again.
The present invention is ingenious in design, and the information content of required transmission is less, and line switching type is on-load switch or breaks
Road device (is generally configured with overcurrent protection trip avoidance function), and the program can be fitted close therewith, will not be to powering mode or protection
Logic has an adverse effect, and fault section isolation can be reliably carried out when permanent fault occurs and carries out turning to supply, so as to
Realize fast recovery of power supply.The original power supply mould of recovery not having a power failure will be realized after troubleshooting in conjunction with " electric logic is changed in cyclization "
Formula.
Description of the drawings
Fig. 1 is the flow diagram of the present invention；
Fig. 2 is the structure diagram of the embodiment of the present invention one.
Specific embodiment
Embodiment one
A kind of method of intelligent distributed FA systems fast recovery of power supply, flow is as shown in Figure 1, include the following steps：
Step 1: FA programs start, it is described if local switch starts W quantum clocks when detecting phase fault electric current
The W time limits be more than the circuit re-switching time limit, while actively detect the " virtual distant of fault current to the transmission of its upstream adjacent switch
Letter ", enters step two；Otherwise, five are entered step；With reference to shown in Fig. 2, when K1 points occur short trouble when, switch 1, switch 2,
Switch 3 will be detected simultaneously by fault current, as each self-starting W of meeting after switch 1, switch 2, switch 3 detect fault current
Limit timing and upstream adjacent switch transmission detect " the virtual remote signalling " of fault current, that is, switching 3 can send " virtual remote signalling "
" virtual remote signalling " can be sent to switch 2, switch 2 not send out then without upstream adjacent switch to switch 1, switch 1.Rest switch will not be examined
Fault current is measured, enters step five.
Step 2: if local switch receives adjacent switch downstream within the W time limits detects the " virtual distant of fault current
Letter " detects that local voltage and current restores, then separating brake when being latched W quantum clocks, whens W quantum clocks arrive after enter step 3；Otherwise W
Enter step 4 after being arrived during quantum clock；Switch 1 and switch 2 will receive downstream adjacent switch within the W time limits and detect fault current
" virtual remote signalling ", then separating brake during each Self-closing lock W quantum clocks, whens W quantum clocks arrive after enter step 3.Due to switch 4 and switch
11 do not detect fault current, therefore will not be sent to " virtual remote signalling " that switch 3 detects fault current, if reclosing
Successful switch 3 can then detect that voltage and current restores, and it is transient fault to show this short trouble, then switch 3 will be latched W
Separating brake during quantum clock, whens W quantum clocks arrive after enter step 3；It will not detect that voltage and current restores if unsuccessful reclosing,
It is permanent fault to show this short trouble, then separating brake when will not be latched W quantum clocks of switch 3, whens W quantum clocks enter after
Step 4.
Step 3: detecting the local position of the switch after the D time limits are delayed, the D time limits open more than fault section mains side
The opening time of pass keeps closing a floodgate if locally switch is in "on" position, if local switch controls it in gate-dividing state
It closes a floodgate, FA programs return；Switch 1, switch 2 maintenance "on" position or control its combined floodgate after the D time limits be delayeds, if reclosing into
Work(maintains "on" position after then the D time limits are also delayed by switch 3 or controls its combined floodgate.
Step 4: the local position of the switch of detection, separating brake is kept if locally switch is in gate-dividing state, if at local switch
In "on" position then confirm it is local without pressure without stream after control its separating brake, while separating brake is required to believe to the transmission of adjacent switch downstream
Breath, FA programs return；Since switch 4 and switch 11 do not detect fault current, switch 3 will not be sent to and detect event
Hinder " the virtual remote signalling " of electric current, it is permanent fault to show this short trouble if unsuccessful reclosing, then switch 3 will be kept
Gate-dividing state controls its separating brake, and 11 separating brakes of the switch 4 for notifying downstream adjacent and switch.
If Step 5: local switch receives its upstream adjacent switch requirement separating brake information, after confirming local without pressing without stream
Its separating brake, the local position of the switch is controlled to restore electricity after confirming reliable separating brake to interconnection switch photos and sending messages requirement combined floodgate, FA programs
It returns.If switch 4 and switch 11 receive switch 3 when requiring separating brake information, confirm it is local without pressure without controlling its separating brake after stream,
After switch 4 and switch 11 confirm reliable separating brake, respective interconnection switch requirement combined floodgate is notified to restore electricity respectively, and switch 1,
Switch 2 closes a floodgate after the D time limits are delayed, permanent where so as to fulfill switch 3, switch 4,11 quick isolated fault point K1 of switch
Fault section waits for personnel's maintenance.Realize fast recovery of power supply in other regions.In conjunction with " electric logic is changed in cyclization " after troubleshooting
It will realize the original powering mode of the recovery not having a power failure.
Claims (3)
- A kind of 1. method of intelligent distributed FA systems fast recovery of power supply, it is characterised in that include the following steps：Step 1: feed line automatization system control program starts, if local switch detects phase fault electric current, start W During quantum clock, while " the virtual remote signalling " of fault current is actively detected to its upstream adjacent switch transmission, enter step two；It is no Then enter step five；If Step 2: local switch received within the W time limits adjacent switch downstream detect fault current " virtual remote signalling " or Detect that local voltage and current restores, then separating brake when being latched W quantum clocks, whens W quantum clocks arrive after enter step 3；Otherwise, the W time limits Timing enters step 4 after arriving；Step 3: detecting the local position of the switch after the D time limits are delayed, its combined floodgate is kept if locally switch is in "on" position, Its combined floodgate is controlled if locally switch is in gate-dividing state, feed line automatization system control program returns；Step 4: the local position of the switch of detection, its separating brake is kept if locally switch is in gate-dividing state, if local switch is in "on" position then confirm it is local without pressure without stream after control its separating brake, while separating brake is required to believe to the transmission of adjacent switch downstream Breath, feed line automatization system control program return；If Step 5: local switch receives its upstream adjacent switch requirement separating brake information, confirm it is local without pressure without being controlled after stream Its separating brake, the local position of the switch restore electricity after confirming reliable separating brake to interconnection switch photos and sending messages requirement combined floodgate, feeder automation System control program returns.
- 2. the method for intelligent distributed FA systems fast recovery of power supply according to claim 1, it is characterised in that：Described The W time limits are more than the circuit re-switching time limit.
- 3. the method for intelligent distributed FA systems fast recovery of power supply according to claim 1, it is characterised in that：Described The D time limits are more than the opening time of fault section source-side switches.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610242512.8A CN105932635B (en) | 2016-04-19 | 2016-04-19 | A kind of method of intelligent distributed FA systems fast recovery of power supply |
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| CN201610242512.8A CN105932635B (en) | 2016-04-19 | 2016-04-19 | A kind of method of intelligent distributed FA systems fast recovery of power supply |
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| CN105932635A CN105932635A (en) | 2016-09-07 |
| CN105932635B true CN105932635B (en) | 2018-07-03 |
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| CN106597210B (en) * | 2016-09-29 | 2020-04-07 | 国网新疆电力公司 | Distribution network star-sky-map monitoring method based on SIM card state |
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|---|---|---|---|---|
| CN101938117A (en) * | 2010-10-14 | 2011-01-05 | 山东大学 | Current differential protection method for smart distribution network |
| CN103151775A (en) * | 2013-02-06 | 2013-06-12 | 上海交通大学 | Distributed feeder automation topology calculation method for power distribution network based on local information |
| CN103825362A (en) * | 2014-02-18 | 2014-05-28 | 国网安徽省电力公司马鞍山供电公司 | Safety remote control method based on virtual remote signaling technology |
| CN103872662A (en) * | 2014-02-18 | 2014-06-18 | 北京科锐配电自动化股份有限公司 | Network type protection method for hybrid networking based on closed-loop model operation |
| CN104701825A (en) * | 2015-03-11 | 2015-06-10 | 国家电网公司 | Quick protection method applicable to intelligent distribution network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8634175B2 (en) * | 2011-04-13 | 2014-01-21 | Siemens Industry, Inc. | Method and system for programming and implementing automated fault isolation and restoration using sequential logic |
-
2016
- 2016-04-19 CN CN201610242512.8A patent/CN105932635B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938117A (en) * | 2010-10-14 | 2011-01-05 | 山东大学 | Current differential protection method for smart distribution network |
| CN103151775A (en) * | 2013-02-06 | 2013-06-12 | 上海交通大学 | Distributed feeder automation topology calculation method for power distribution network based on local information |
| CN103825362A (en) * | 2014-02-18 | 2014-05-28 | 国网安徽省电力公司马鞍山供电公司 | Safety remote control method based on virtual remote signaling technology |
| CN103872662A (en) * | 2014-02-18 | 2014-06-18 | 北京科锐配电自动化股份有限公司 | Network type protection method for hybrid networking based on closed-loop model operation |
| CN104701825A (en) * | 2015-03-11 | 2015-06-10 | 国家电网公司 | Quick protection method applicable to intelligent distribution network |
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