CN102355054A - Local self-healing protection method of distribution network automation - Google Patents
Local self-healing protection method of distribution network automation Download PDFInfo
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- CN102355054A CN102355054A CN2011102592537A CN201110259253A CN102355054A CN 102355054 A CN102355054 A CN 102355054A CN 2011102592537 A CN2011102592537 A CN 2011102592537A CN 201110259253 A CN201110259253 A CN 201110259253A CN 102355054 A CN102355054 A CN 102355054A
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Abstract
The invention relates to the field of distribution network automation systems, in particular to a local self-healing protection method for fault recognition and protection, fault isolation and power supply recovery in a distribution network automation system. According to the method, through the driving of substation exit accident master remote signaling, faults can be protected and isolated voluntarily and rapidly in a distributed way by the driving of a substation protection signal and out of the control of a main station, and power is restored to a non-fault region; equipment is prevented from generating misoperation caused by misjudgment by using the substation protection signal, and concentrated control can also be carried out by a main station; and a distributed control function is locked when the main station performs control, therefore the method has favorable misoperation prevention capability to a switch, and the pressure of the main station is reduced.
Description
Technical field
The present invention relates to the distribution automation system field, in particular for the local self-healing protection method of the Fault Identification in the distribution automation system, protection, Fault Isolation and answer power supply.
Background technology
Along with developing rapidly of distribution network automated correlation technique, the function of distribution automation system from strength to strength, and is also increasingly high to the requirement of distribution automation system; Particularly; To Fault Identification, protection, Fault Isolation with restore electricity, begun to change to distributed control, particularly the proposition of local self-healed protection by centralized control; Require control appliance in this locality; Do not rely on main website pass through the state of front and back equipment is judged promptly break away from main website, the identification of distributed completion fault, protection, isolation and non-fault zone restore electricity; When realizing distributed control, require to have centralized controlled function again, can control through main website.And when realizing the distributed protection function, prevent again because false judgment appears in local device, thereby switch is made misoperation.At present, the also perfect without comparison method that addresses these problems.
Summary of the invention
The object of the invention is exactly in order to overcome the technical deficiency of existing distribution automation system; A kind of distribution network automated local self-healed protection scheme implementation method is provided, and this method promptly can break away from main website control, is distributedly driven by the transforming plant protecting signal; Voluntarily, fast fault is protected, isolated; Non-fault zone is restored electricity, and prevent the equipment erroneous judgement generation misoperation of having no progeny, also can carry out centralized control by main website by the transforming plant protecting signal; And when controlling in main website, the locking distributed coordination function.
The technical solution adopted for the present invention to solve the technical problems is: a kind of distribution network automated local self-healed protection scheme implementation method drives through the total remote signalling of transformer station's outlet accident, when feeder line breaks down; The control device of faulty line both sides can rely on the order of main website or break away from main website to rely on self automated intelligent control, failure judgement position according to the fault-signal that detected fault-signal and other devices transmit; Two ends, control fault zone switch trip; Realize to isolate, isolates successfully after, be isolated into function signal to the interconnection switch transmission; Interconnection switch controller control interconnection switch closes a floodgate, to recover the power supply of non-fault zone;
When feeder line breaks down; The equipment of front side, fault point can produce fault; And the equipment of fault point rear side can not produce fault, and carries out peer-to-peer communications between two equipment, such two equipment just can distributed failure judgement point between them; And need fault-signal all not delivered to main website, judge by main website again;
When not relying on main website and carry out distributed control, through setting up the passage of peer-to-peer communications between the neighbouring device, fault message and the fault message that receives other equipment according to self break away from main website, the position of failure judgement fast; After judging abort situation, the corresponding relation according to self and fault point carries out fast processing to fault, the fault zone is isolated, non-fault zone is restored electricity etc.When abnormal conditions such as the switch tripping of being controlled, communication disruption, overhaul of the equipments, can be according to the residing position of switch transmit button abnormal information forward or backward, to the fault zone processing of magnifying;
When fault took place, transformer station can send guard signal here, after two equipment are received guard signal; Then, adopt distributed control mode that faulty line is handled, only to the action of tripping of the switch at two ends, fault zone according to the fault point of judging; After the equipment of fault point rear side confirms that switch breaks off, can send to interconnection switch and be isolated into function signal, after interconnection switch is received and isolated successful signal; If receive the transforming plant protecting signal that transmits by this side simultaneously; Interconnection switch is carried out feed motion, do not need the instruction of main website, to recover the power supply of non-fault zone.Can not impact to other switch on the circuit; Drive with the total remote signalling of the accident of transformer station, when transformer station does not see the total remote signalling of accident off, can not handle, in case carry out misoperation after the erroneous judgement fault fault.
And when transformer station did not send guard signal, then all switches all were failure to actuate, and split the pass to prevent because of wrong judgement and carried out misoperation.
When the switch tripping of both sides, fault point; Then according to the switch transmit button tripping forward or backward signal of tripping; After current side apparatus or back side apparatus are received switch tripping signal; The switch of then distributed control self breaks off, and with the realization Fault Isolation, thereby realizes the expansion of faulty line is handled.If switch continues tripping, then continue transmit button tripping signal, can unconfinedly enlarge processing in theory; But it is big more to enlarge the scope of handling; The time of then fault accomplish being isolated is just slow more, thus the time can become and enlarge the restriction of handling, certainly; The probability of continuous two switch trippings is quite little, can not take place basically.
When communication line produced fault, feeder line produced fault, and before feeder fault point, then the equipment before the communication line fault point does not rely on the main website instruction like the communication line fault point, and control switch breaks off voluntarily, no longer carries out other operations.Behind feeder fault point, then the equipment of feeder fault point both sides does not rely on the main website instruction like the communication line fault point, and control switch breaks off voluntarily, and interconnection switch no longer closes.Thereby the expansion that realizes fault is handled.
Beneficial effect of the present invention is, need not carry out great change to the hardware system and the software systems of equipment, only needs carry out the minimal change setting to Parameter File; To multiple abnormal conditions such as switch tripping, communication disruption, line maintenance, interconnection switch evolutions, but all optimization processes; Switch had good anti-misoperation ability; Isolated fault fast, its Fault Isolation time, non-fault zone restored electricity the time less than 1s less than 500ms; Do not rely on main website control,, reduce the pressure of main website by the distributed identification of equipment self, isolated fault and recovery non-fault zone power supply; Can not exert an influence, reduce impact switch to non-fault zone switch.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is logical framework figure of the present invention.
After Fig. 2 is embodiment of the present invention, the situation when producing feeder fault.
Fig. 3 is after the present invention program implements, the variable condition of switch 2.
Fig. 4 is after the present invention program implements, the variable condition of switch 3.
Fig. 5 is after the present invention program implements, the variable condition of switch 5.
Embodiment
In Fig. 1,, transmit failure judgement point, the needed information of isolated fault circuit through the intercommunication mutually between the neighbouring device; Do not rely on main website; Carry out controls such as distributed fault identification, isolation, and, prevent misoperation through using the transforming plant protecting signal to drive; When communication is broken down, can enlarge processing elsewhere according to condition of different.
Shown in Fig. 2 embodiment, when feeder line broke down, equipment 1 can break off with switch 3 by control switch 2 with equipment 2, and equipment 3 can close by control switch 5, to accomplish Fault Processing, recovers the power supply of non-fault zone automatically.Feeder line breaks down, at this moment, and transformer station's outlet tripping operation, and guard signal takes place; After the fault generating, equipment 1 detects fault, and transmits fault-signal for backward equipment 2; This moment, equipment 2 did not detect fault, and transmitted the signal that does not have fault for forward equipment 1; This moment, equipment 1 received the guard signal of transformer station and the signal that does not have fault of equipment 2; The fault-signal that also has self in addition; But failure judgement send out between switch 2 and switch 3; Can not rely on main website control, self control switch 2 breaks off, and transmits the transforming plant protecting signals for backward equipment 2.
Shown in Fig. 3 embodiment, the state of switch 0 is the state of switch 2.At this moment, equipment 2 receives the fault-signal of equipment 1 and the guard signal of transformer station, self does not detect fault in addition, can not rely on the signal of main website, and failure judgement is between switch 2 and switch 3, and can break off by distributed control switch 3 this moment.
Shown in Fig. 4 embodiment, the state of switch 0 is the state of switch 3.After switch 3 breaks off; Equipment 2 sends for backward equipment 3 and is isolated into function signal and transforming plant protecting signal; After equipment 3 is received and is isolated into function signal and transforming plant protecting signal, do not rely on main website and can judge that its own switch 5 is interconnection switch, and control switch 5 closes a floodgate voluntarily.
Shown in Fig. 5 embodiment, the state of switch 1 is the state of switch 5, and after interconnection switch closed, non-fault zone promptly restored electricity, and troubleshooting is accomplished.
Claims (6)
1. a distribution network automated local self-healing protection method is characterized in that: drive through the total remote signalling of transformer station's outlet accident, when feeder line breaks down; The control device of faulty line both sides can rely on the order of main website or break away from main website to rely on self automated intelligent control, failure judgement position according to the fault-signal that detected fault-signal and other devices transmit; Two ends, control fault zone switch trip; Realize to isolate, isolates successfully after, be isolated into function signal to the interconnection switch transmission; Interconnection switch controller control interconnection switch closes a floodgate, to recover the power supply of non-fault zone;
2. distribution network automated local self-healing protection method according to claim 1 is characterized in that: set up the passage of peer-to-peer communications, fault message and the fault message that receives other equipment according to self break away from the main website position of failure judgement fast.
3. distribution network automated local self-healing protection method according to claim 1; It is characterized in that: after judging abort situation; Corresponding relation according to self and fault point carries out fast processing to fault, the fault zone is isolated, non-fault zone is restored electricity etc.
4. distribution network automated local self-healing protection method according to claim 1; It is characterized in that: when abnormal conditions such as the switch tripping of being controlled, communication disruption, overhaul of the equipments; Can be according to the residing position of switch transmit button abnormal information forward or backward, to the fault zone processing of magnifying.
5. distribution network automated local self-healing protection method according to claim 1; It is characterized in that: when fault takes place; Only, interconnection switch is carried out feed motion, can not impact other switch on the circuit to the action of tripping of the switch at two ends, fault zone.
6. distribution network automated local self-healing protection method according to claim 1 is characterized in that: drive with the total remote signalling of the accident of transformer station, when transformer station does not see the total remote signalling of accident off, can not handle fault, in case carry out misoperation after the erroneous judgement fault.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102592537A CN102355054A (en) | 2011-08-26 | 2011-08-26 | Local self-healing protection method of distribution network automation |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709889A (en) * | 2012-05-29 | 2012-10-03 | 长园深瑞继保自动化有限公司 | Self-healing method and self-healing system for faults of power distribution network |
| CN102882195A (en) * | 2012-10-24 | 2013-01-16 | 江苏省电力公司扬州供电公司 | Intelligent longitudinally-interconnected feeder automation system |
| CN104410168A (en) * | 2014-12-16 | 2015-03-11 | 柳涛 | Method for identifying power distribution network by remote signaling based on closing probability of switch |
| CN105552858A (en) * | 2015-12-22 | 2016-05-04 | 西安西瑞控制技术股份有限公司 | Fault processing method applying regional blocking for power distribution network |
| CN107300888A (en) * | 2012-05-18 | 2017-10-27 | 株式会社东芝 | Control device, control method and infrastructure control system |
| CN108494088A (en) * | 2018-03-16 | 2018-09-04 | 上海交通大学 | Consider the intelligent distribution type feeder automation terminal of ad hoc network equipment state |
| CN105759165B (en) * | 2016-05-03 | 2018-11-02 | 国网新疆电力公司昌吉供电公司 | Power distribution automation main station functionization evaluating method based on feeder fault condition diagnosing |
| CN109726214A (en) * | 2018-12-26 | 2019-05-07 | 国电南瑞科技股份有限公司 | A kind of equipment fault disposition aid decision-making method and system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300888A (en) * | 2012-05-18 | 2017-10-27 | 株式会社东芝 | Control device, control method and infrastructure control system |
| CN102709889A (en) * | 2012-05-29 | 2012-10-03 | 长园深瑞继保自动化有限公司 | Self-healing method and self-healing system for faults of power distribution network |
| CN102882195A (en) * | 2012-10-24 | 2013-01-16 | 江苏省电力公司扬州供电公司 | Intelligent longitudinally-interconnected feeder automation system |
| CN104410168A (en) * | 2014-12-16 | 2015-03-11 | 柳涛 | Method for identifying power distribution network by remote signaling based on closing probability of switch |
| CN104410168B (en) * | 2014-12-16 | 2016-09-28 | 柳涛 | A kind of method of power distribution network remote signalling identification based on switch Guan Bi probability |
| CN105552858A (en) * | 2015-12-22 | 2016-05-04 | 西安西瑞控制技术股份有限公司 | Fault processing method applying regional blocking for power distribution network |
| CN105552858B (en) * | 2015-12-22 | 2018-06-29 | 西安西瑞控制技术股份有限公司 | The distribution network failure processing method being latched using region |
| CN105759165B (en) * | 2016-05-03 | 2018-11-02 | 国网新疆电力公司昌吉供电公司 | Power distribution automation main station functionization evaluating method based on feeder fault condition diagnosing |
| CN108494088A (en) * | 2018-03-16 | 2018-09-04 | 上海交通大学 | Consider the intelligent distribution type feeder automation terminal of ad hoc network equipment state |
| CN108494088B (en) * | 2018-03-16 | 2022-02-08 | 上海交通大学 | Intelligent distributed feeder automation terminal considering self-networking equipment state |
| CN109726214A (en) * | 2018-12-26 | 2019-05-07 | 国电南瑞科技股份有限公司 | A kind of equipment fault disposition aid decision-making method and system |
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