CN103051059A - Feeder automation realizing method for residential area with smart distribution network - Google Patents
Feeder automation realizing method for residential area with smart distribution network Download PDFInfo
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- CN103051059A CN103051059A CN2012105374488A CN201210537448A CN103051059A CN 103051059 A CN103051059 A CN 103051059A CN 2012105374488 A CN2012105374488 A CN 2012105374488A CN 201210537448 A CN201210537448 A CN 201210537448A CN 103051059 A CN103051059 A CN 103051059A
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Abstract
The invention discloses a feeder automation realizing method for a residential area with a smart distribution network. The method comprises the following steps of: acquiring the number of circuit breakers, the serial numbers of all the circuit breakers, and the serial numbers and the physical positions of ring main units or power distribution cabinets in which the circuit breakers are respectively arranged; selecting a MAIN-DTU (Distribute Terminal Unit) and saving information; establishing the upstream and downstream connecting models of the circuit breakers to obtain the upstream and downstream equipment information of all the circuit breakers; storing the upstream and downstream equipment information in the MAIN-DTU; receiving an over-current protection signal and a voltage loss protection signal by the MAIN-DTU; detecting whether the over-current protection signal is received by the MAIN-DTU; judging the circuit breakers needing to be isolated and isolating the circuit breaker by the MAIN-DTU; and judging the circuit breakers needing to be recovered from failures and recovering the circuit breakers by the MAIN-DTU. The method provide by the invention has the advantages that the problem that the accuracy and the timeliness of a dispatching center for realizing feeder automation are poor is solved and the feeder automation is accurately realized.
Description
Technical field
The present invention relates to the feeder automation field, relate in particular to the feeder automation implementation method of a kind of intelligent distribution residential quarter.
Background technology
Feeder line (also claiming feeder line, distribution line) is the important component part of distribution system.Feeder automation automatically detects and excises fault section after referring to that mainly feeder line breaks down, and then recovers a kind of technology of non-fault section normal power supply.
In recent years, along with the fast development of the communication technology, the feeder automation based on switching station data terminal unit DTU (Distribute Terminal Unit) and network service has appearred.Under this pattern, searching, isolate and restoring electricity of fault is to gather fault message and be uploaded to the control centre by DTU, and minute closing operation of circuit breaker and on-load switch is controlled by the control centre.This pattern has very high automatization level, and switch only needs one-off.But accurately failure judgement point relies on channel quality, if channel quality is poor, the holiday signal will obtain wrong recognition result, be sent by the control centre owing to system decision-making instruction simultaneously, add the time-delay of communication port, also lengthen the recovery time of non-fault section.
In the intelligence distribution residential quarter, is furnished with circuit breaker in ring main unit and the power distribution cabinet, is furnished with DTU in the ring main unit, feeder line adopts the looped network design usually, the open loop operational mode, primary connection mode physically is: behind the distribution transformer outlet, connect hand in hand all circuit breakers on the feeder line, then get back to the outlet of another one distribution transformer.The intelligence instrument of being furnished with in power distribution cabinet and the ring main unit can collect guard signal, and each power distribution cabinet on feeder line and the signal of ring main unit are realized enjoying mutually by the optical fiber ring network passage.
Summary of the invention
The object of the invention is to overcome accuracy and the ageing not good defective that is realized feeder automation by the control centre, the feeder automation implementation method of a kind of intelligent distribution residential quarter is provided, based on the feeder line mode of connection of present intelligent distribution residential quarter and the equipment of existing configuration, directly realize isolation and the service restoration of fault by the DTU of residential quarter, convenient, fast, be easy to realize and need not increase extra cost.
The technical scheme that realizes above-mentioned purpose is:
The feeder automation implementation method of a kind of intelligent distribution residential quarter, each ring main unit in the described intelligent distribution residential quarter links to each other by optical fiber with each power distribution cabinet, ring main unit and power distribution cabinet all are furnished with circuit breaker, ring main unit is furnished with DTU, feeder line is connected in series each circuit breaker, and two of feeder line connects distribution transformer, and described feeder automation implementation method comprises the following steps:
Step S1 obtains the number N of circuit breaker, and N is positive integer; Obtain the numbering of each circuit breaker; Obtain this N circuit breaker and distinguish affiliated ring main unit or numbering and the physical location of power distribution cabinet;
Step S2 selects a DTU, with this DTU called after MAIN_DTU, and with the number N of circuit breaker, and the numbering of each circuit breaker, and the numbering of each ring main unit or power distribution cabinet and physical location all deposit MAIN_DTU in;
Step S3, N circuit breaker among the search step S1 forms the upstream and downstream link model of this N circuit breaker, obtains the upstream and downstream facility information of each circuit breaker;
Step S4 deposits the upstream and downstream facility information of each circuit breaker of obtaining among the step S3 in MAIN_DTU;
Step S5, MAIN_DTU receives overcurrent protection signal and the o-volt protection signal from each power distribution cabinet or ring main unit;
Step S6 detects MAIN_DTU and whether receives the overcurrent protection signal, if enter step S7; If not, enter step S9;
Step S7, MAIN_DTU judge the circuit breaker that needs isolation according to the overcurrent protection signal that receives, and send isolated instructions to the circuit breaker that needs isolation, so that this circuit breaker separates action;
Step S8, MAIN_DTU judges the circuit breaker that needs fault recovery according to the o-volt protection signal that receives, and sends the signal that restores electricity to the circuit breaker that needs fault recovery, so that this circuit breaker carries out closed action;
Step S9 finishes.
The feeder automation implementation method of above-mentioned intelligent distribution residential quarter, wherein, described step S3 specifically comprises:
According to electrical connection, from the circuit breaker of distribution transformer outlet, sequential search goes out N circuit breaker, and the upstream and downstream that form this N circuit breaker connect; The upstream and downstream facility information of each circuit breaker refers to: the numbering of the numbering of this circuit breaker, its upstream equipment circuit breaker with and the numbering of upstream device circuit breaker.
The feeder automation implementation method of above-mentioned intelligent distribution residential quarter wherein, among the step S7, is judged the circuit breaker that needs isolation, specifically comprises:
If circuit breaker has the overcurrent protection signal, its upstream equipment also is circuit breaker and the overcurrent protection signal is arranged that then these two circuit breakers need not isolation;
If circuit breaker has the overcurrent protection signal, its upstream equipment also is circuit breaker and without the overcurrent protection signal, and then these two circuit breakers need isolation;
If circuit breaker is without the overcurrent protection signal, its upstream equipment also is circuit breaker and without the overcurrent protection signal, then these two circuit breakers need not isolation;
If circuit breaker is without the overcurrent protection signal, its upstream equipment also is circuit breaker and the overcurrent protection signal is arranged that then these two circuit breakers need isolation.
The feeder automation implementation method of above-mentioned intelligent distribution residential quarter wherein, among the step S8, is judged the circuit breaker that needs fault recovery, specifically comprises:
If circuit breaker is not the circuit breaker that requires isolation among the step S7, and before 1 minute without the o-volt protection signal, current have a decompression guard signal, simultaneously, its upstream equipment or upstream device are distribution transformers, then this circuit breaker needs fault recovery;
If circuit breaker is not to need isolation circuit breakers among the step S7; and before 1 minute without the o-volt protection signal; current have a decompression guard signal; simultaneously; its upstream equipment and upstream device all are circuit breakers; and this upstream equipment and upstream device are current all without the o-volt protection signal, and then this circuit breaker needs fault recovery.
The feeder automation implementation method of above-mentioned intelligent distribution residential quarter, wherein, described each circuit breaker all possesses Remote deciliter function.
The feeder automation implementation method of above-mentioned intelligent distribution residential quarter, wherein, described overcurrent protection signal and o-volt protection signal include: the numbering of ring main unit or power distribution cabinet.
The invention has the beneficial effects as follows: the feeder line mode of connection that the present invention is based on present intelligent distribution residential quarter, optical-fibre channel by annular, relative breaker to the residential quarter adopts upstream and downstream DeviceMode modeling, directly realize isolation and the service restoration of fault in conjunction with the DTU of residential quarter, need not fault-signal is sent to the control centre, thereby solve accuracy and the ageing not good problem that the control centre realizes feeder automation.Simultaneously, the present invention need not dispose extra equipment, all adopts the equipment of existing configuration to realize, need not increase extra cost, and is convenient and be easy to realize.
Description of drawings
Fig. 1 is the flow chart of the feeder automation implementation method of intelligent distribution of the present invention residential quarter.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
The feeder line mode of connection based on present intelligent distribution residential quarter; the present invention is by the optical-fibre channel of annular; to the relative breaker in the residential quarter; adopt the modeling of upstream and downstream DeviceMode; then the guard signal of ring main unit or power distribution cabinet is sent on the DTU of residential quarter ring main unit; behind DTU analysis guard signal, send fault isolation commands or fault recovery instruction, directly realize isolation and the service restoration of fault.Particularly, see also Fig. 1, the feeder automation implementation method of intelligent distribution of the present invention residential quarter comprises the following steps:
Step S1 adds up the number N (N is positive integer) that participates in each circuit breaker of feeder automation in the intelligent distribution residential quarter, this N circuit breaker circuit breaker numbering separately, and this N circuit breaker distinguished affiliated ring main unit or numbering and the physical location of power distribution cabinet; Wherein, described each circuit breaker all possesses Remote deciliter function, and the circuit breaker that does not satisfy this condition does not participate in feeder automation; Circuit breaker numbering is corresponding to the numbering of the ring main unit under this circuit breaker or power distribution cabinet;
Step S2, in intelligent distribution residential quarter, select any one DTU(DTU to be configured in the ring main unit), with this DTU called after MAIN_DTU, and the information (numbering and the physical location of the number N of circuit breaker, the numbering of circuit breaker, ring main unit or power distribution cabinet) that step S1 obtains is saved in the solid-state memory of this MAIN_DTU;
Step S3 searches for N circuit breaker, forms the upstream and downstream link model of this N circuit breaker, obtains the upstream and downstream facility information of each circuit breaker; Specifically comprise: from the circuit breaker of the outlet of distribution transformer, according to electrical connection, sequential search goes out N circuit breaker, find successively the 1st, the 2nd, the 3rd circuit breaker, until find all N circuit breaker, form the upper of this N circuit breaker, the downstream connects, that is: the upstream equipment of the 1st circuit breaker is distribution transformer, upstream device is the 2nd circuit breaker, the upstream equipment of the 2nd circuit breaker is the 1st circuit breaker, and upstream device is the 3rd circuit breaker, the like, the upstream equipment of N last circuit breaker is N-1 circuit breaker, and upstream device is distribution transformer; Put in order (following sequentially do narration with this) according to above-mentioned circuit breaker from 1 to N, each circuit breaker numbering of this N circuit breaker is arranged; For each circuit breaker, the upstream and downstream facility information of this circuit breaker refers to: the numbering of the numbering of this circuit breaker, its upstream equipment (circuit breaker) and the numbering of upstream device (circuit breaker), if upstream equipment or upstream device are distribution transformers, then do not remember numbering;
Step S4 is saved in the upstream and downstream facility information of each circuit breaker of obtaining among the step S3 in the solid-state memory of described MAIN_DTU;
Step S5, MAIN_DTU receives the guard signal from each power distribution cabinet or ring main unit, and guard signal comprises overcurrent protection signal and o-volt protection signal; Overcurrent protection signal and o-volt protection signal all contain: the number information of ring main unit or power distribution cabinet; By step S1 as can be known, MAIN_DTU can learn the physical location of this ring main unit or power distribution cabinet by the number information of ring main unit or power distribution cabinet, and the numbering that belongs to the circuit breaker of this ring main unit or power distribution cabinet;
Step S6 detects MAIN_DTU and whether receives the overcurrent protection signal, if enter step S7; If not, enter step S9;
Step S7, MAIN_DTU carries out Fault Isolation, specifically comprises:
According to the number information of the ring main unit that comprises in the overcurrent protection signal or power distribution cabinet, learn the numbering of the circuit breaker corresponding with ring main unit or power distribution cabinet, then judge:
If the i(2≤i≤N, and for integer) individual circuit breaker has overcurrent protection signal (namely ring main unit or the power distribution cabinet under this circuit breaker has the overcurrent protection signal), i-1 circuit breaker of its upstream equipment has the overcurrent protection signal, then fault occurs in outside the interval of i, i-1 circuit breaker connection, and i and i-1 circuit breaker need not isolation;
If i circuit breaker has the overcurrent protection signal, i-1 circuit breaker of its upstream equipment is without the overcurrent protection signal, and then fault occurs between the interval of i, i-1 circuit breaker connection, and i and i-1 circuit breaker need isolation;
If i circuit breaker is without the overcurrent protection signal, i-1 circuit breaker of its upstream equipment is without the overcurrent protection signal, and then fault occurs in outside the interval of i, i-1 circuit breaker connection, and i and i-1 circuit breaker need not isolation;
If i circuit breaker is without the overcurrent protection signal, i-1 circuit breaker of its upstream equipment has the overcurrent protection signal, and then fault occurs between the interval of i, i-1 circuit breaker connection, and i and i-1 circuit breaker need isolation;
Through after the above-mentioned judgement, if there is circuit breaker to need isolation, isolated instructions is sent to corresponding circuit breaker by optical-fibre channel, separate action;
Step S8, MAIN_DTU carries out fault recovery, namely judges:
The if the 1st or N circuit breaker, be not the circuit breaker that requires isolation among the step S7, and before 1 minute without the o-volt protection signal, current have a decompression guard signal, its upstream equipment or upstream device are distribution transformers, then the 1st or N circuit breaker carry out fault recovery;
If the n(2≤n≤N-1, and be integer) individual circuit breaker, not to need isolation circuit breakers among the step S7, and before 1 minute without the o-volt protection signal, current have a decompression guard signal, simultaneously, n-1 circuit breaker of its upstream equipment and n+1 circuit breaker of upstream device are current all without the o-volt protection signal, and then this n circuit breaker carries out fault recovery;
Through after the above-mentioned judgement, if there is circuit breaker will carry out fault recovery, MAIN_DTU sends the signal that restores electricity, and sends to corresponding circuit breaker by optical-fibre channel, carries out closed action;
Step S9 finishes troubleshooting.
To sum up, the present invention can solve accuracy and the ageing not good problem that the control centre realizes feeder automation, take full advantage of the optical-fibre channel of intelligent distribution residential quarter, reduced the data channel requirement at distribution scheduling center, reduce the complexity of distribution net work structure design, can satisfy the practical implementation demand.
Above embodiment is only for explanation the present invention's, but not limitation of the present invention, person skilled in the relevant technique, in the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (6)
1. the feeder automation implementation method of an intelligent distribution residential quarter, each ring main unit in the described intelligent distribution residential quarter links to each other by optical fiber with each power distribution cabinet, ring main unit and power distribution cabinet all are furnished with circuit breaker, ring main unit is furnished with DTU, feeder line is connected in series each circuit breaker, and two of feeder line connects distribution transformer, it is characterized in that, described feeder automation implementation method comprises the following steps:
Step S1 obtains the number N of circuit breaker, and N is positive integer; Obtain the numbering of each circuit breaker; Obtain this N circuit breaker and distinguish affiliated ring main unit or numbering and the physical location of power distribution cabinet;
Step S2 selects a DTU, with this DTU called after MAIN_DTU, and with the number N of circuit breaker, and the numbering of each circuit breaker, and the numbering of each ring main unit or power distribution cabinet and physical location all deposit MAIN_DTU in;
Step S3, N circuit breaker among the search step S1 forms the upstream and downstream link model of this N circuit breaker, obtains the upstream and downstream facility information of each circuit breaker;
Step S4 deposits the upstream and downstream facility information of each circuit breaker of obtaining among the step S3 in MAIN_DTU;
Step S5, MAIN_DTU receives overcurrent protection signal and the o-volt protection signal from each power distribution cabinet or ring main unit;
Step S6 detects MAIN_DTU and whether receives the overcurrent protection signal, if enter step S7; If not, enter step S9;
Step S7, MAIN_DTU judge the circuit breaker that needs isolation according to the overcurrent protection signal that receives, and send isolated instructions to the circuit breaker that needs isolation, so that this circuit breaker separates action;
Step S8, MAIN_DTU judges the circuit breaker that needs fault recovery according to the o-volt protection signal that receives, and sends the signal that restores electricity to the circuit breaker that needs fault recovery, so that this circuit breaker carries out closed action;
Step S9 finishes.
2. the feeder automation implementation method of intelligent distribution according to claim 1 residential quarter is characterized in that described step S3 specifically comprises:
According to electrical connection, from the circuit breaker of distribution transformer outlet, sequential search goes out N circuit breaker, and the upstream and downstream that form this N circuit breaker connect; The upstream and downstream facility information of each circuit breaker refers to: the numbering of the numbering of this circuit breaker, its upstream equipment circuit breaker with and the numbering of upstream device circuit breaker.
3. the feeder automation implementation method of intelligent distribution according to claim 1 residential quarter is characterized in that, among the step S7, judges the circuit breaker that needs isolation, specifically comprises:
If circuit breaker has the overcurrent protection signal, its upstream equipment also is circuit breaker and the overcurrent protection signal is arranged that then these two circuit breakers need not isolation;
If circuit breaker has the overcurrent protection signal, its upstream equipment also is circuit breaker and without the overcurrent protection signal, and then these two circuit breakers need isolation;
If circuit breaker is without the overcurrent protection signal, its upstream equipment also is circuit breaker and without the overcurrent protection signal, then these two circuit breakers need not isolation;
If circuit breaker is without the overcurrent protection signal, its upstream equipment also is circuit breaker and the overcurrent protection signal is arranged that then these two circuit breakers need isolation.
4. the feeder automation implementation method of intelligent distribution according to claim 3 residential quarter is characterized in that, among the step S8, judges the circuit breaker that needs fault recovery, specifically comprises:
If circuit breaker is not the circuit breaker that requires isolation among the step S7, and before 1 minute without the o-volt protection signal, current have a decompression guard signal, simultaneously, its upstream equipment or upstream device are distribution transformers, then this circuit breaker needs fault recovery;
If circuit breaker is not to need isolation circuit breakers among the step S7; and before 1 minute without the o-volt protection signal; current have a decompression guard signal; simultaneously; its upstream equipment and upstream device all are circuit breakers; and this upstream equipment and upstream device are current all without the o-volt protection signal, and then this circuit breaker needs fault recovery.
5. according to claim 1 to the feeder automation implementation method of 4 each described intelligent distribution residential quarters, it is characterized in that described each circuit breaker all possesses Remote deciliter function.
6. according to claim 1 to the feeder automation implementation method of 4 each described intelligent distribution residential quarters, it is characterized in that described overcurrent protection signal and o-volt protection signal include: the numbering of ring main unit or power distribution cabinet.
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| CN113113971A (en) * | 2021-04-15 | 2021-07-13 | 广东电网有限责任公司佛山供电局 | Automatic remote control execution method and related device for distribution network feeder operation task |
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| CN103051059B (en) | 2014-10-29 |
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