CN102332710A - High-performance voltage timelike distribution automation terminal - Google Patents
High-performance voltage timelike distribution automation terminal Download PDFInfo
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- CN102332710A CN102332710A CN201110272024A CN201110272024A CN102332710A CN 102332710 A CN102332710 A CN 102332710A CN 201110272024 A CN201110272024 A CN 201110272024A CN 201110272024 A CN201110272024 A CN 201110272024A CN 102332710 A CN102332710 A CN 102332710A
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Abstract
The invention relates to a high-performance timelike distribution automation terminal. Firstly, overcurrent detection function is added to the terminal, overcurrent detection is combined with a voltage time principle, and brake separating operation is executed only after detecting the terminal by which a fault current passes and experiencing mains failure; meanwhile, whether the detection unit is put in can be automatically adjusted, the detection unit becomes a traditional command device when the detection unit is not put in, so as to adapt switching equipment provided with no current transformer; and secondly, a basic state, namely a brake separating blocking state, is added, thus the terminal has three basic states, namely a normal state, a brake closing locking state and the brake separating blocking state, but the terminal is only in one of the three states at one time. By applying the high-performance timelike distribution automation terminal provided by the invention, power supply recovery time is shortened, switching action frequency is reduced, and adaptability to a power distribution network structure is enhanced; and the high-performance timelike distribution automation terminal is adapted to any complex tree network and a multi-power-source network without considering an overload factor.
Description
Technical field
The present invention relates to the distribution automation field, be specifically related to high-effect voltage time type distribution automation terminal.
Background technology
Mainly introduce from Japan at the voltage-time mode distribution automation terminal of extensively adopting at present, only relies on factors such as voltage, time just can distinguish the fault point.This device does not rely on communication, can save the construction cost of a large amount of communication systems, is well suited for the limited rural power distribution network of economic condition.
The principle of voltage-time mode is when fault takes place, and the switch of electric substation excision fault after the terminal impression that is installed on distribution has a power failure, is carried out sub-switching operation.After the circuit breaker of electric substation send electricity once more, terminal impression incoming call, the terminal that is in normal condition is through after a while after (X time); Carry out closing operation; To the next stage line powering, whether the terminal that is in the closing locking state is then ignored and is sent a telegram here, and is in gate-dividing state all the time.If the terminal of carrying out combined floodgate is in the time period behind combined floodgate (Y time), impression has a power failure once more, and the rear end circuit that then is judged as this device power supply is a faulty line, therefore gets into the closing locking state.Be in the device of closing locking state, must be after troubleshooting finishes, by artificial unlocking state.Perhaps try to send through twice reclosing in the electric substation like this, can isolate the circuit of permanent fault, and the power supply that recovers intact part.
Aforesaid way has several significant disadvantage: one hereat phragma from the service restoration of non-faulty section, the time is long, often wants a few minutes, and is bigger to customer impact; The 2nd, switch motion is frequent, so long as have a power failure, no matter be fault or all switch separating brakes of normally rationing the power supply and all can cause distribution; The 3rd, relatively poor to the adaptability of network, can cause the fault erroneous judgement to more complicated network.
Summary of the invention
High-effect voltage time type distribution automation of the present invention terminal can effectively overcome the problem of conventional terminal through a kind of new operation principle, addresses the aforementioned drawbacks at one stroke.
At first clear and definite notions are described for the ease of operation principle.
The relation at switch and terminal: switch is an actuating equipment, and the terminal is a control appliance, switch of a terminal control.Switch place electric current, bilateral voltage, on off state information are responsible for gathering in the terminal, and operation principle according to the present invention responds to electric current, voltage, on off state change in information.Separating brake, reclosing command are sent out to switch in the terminal, and switch is carried out the instruction at terminal.
Tight rear end fault: to certain specific switch in the distribution, directly supply power by this switch, claim that then this fault is tight rear end fault to this switch like the fault circuit.
Rear end far away fault: to certain specific switch in the distribution, the fault point is in the back of switch, and at least with this switch also across other switch, then claim this fault to this switch, be rear end far away fault.
The X time: time-delay closing time.When switch was in separating brake position and a side side decompression of pressure is arranged, the terminal was delayed during through X and is sent out a reclosing command.
The Y time: inspection decompression window time.Generally require Y less than X, but greater than transformer station's backup protection T1 operate time.Whether the terminal through detecting decompression in the time at Y, failure judgement is tight rear end fault or rear end far away fault.When the distribution switch closed a floodgate, if fault is a tight rear end fault, then transformer station's power switch can trip, and its time can not surpass T1, that is to say that the terminal will detect decompression in the time at Y.If fault is a rear end far away fault; Y can not detect decompression in the time, because the circuit of its power supply is intact, and the next stage switch does not also close a floodgate, and (the X time just closes a floodgate because subordinate's switch will be delayed time on the faulty line; And Y＜X), faulty line is confirmed at the terminal in view of the above.
In order to achieve the above object, the present invention realizes with following operation principle: the one, increase overcurrent detection at the terminal, only at the terminal that detects the fault current process; After experiencing power failure; Just carry out sub-switching operation, and then start follow-up voltage time and judge, but whether this measuring ability drops into and can carry out automatic adjusting; Can become conventional apparatus when not dropping into, to adapt to the switchgear that is not equipped with current transformer; The 2nd, increased a basic status, i.e. separating brake blocking, such terminal will have three kinds of basic status, just normal condition, closing locking state, separating brake blocking.But each constantly, and a terminal can only be in a kind of state in these three kinds of states.Behind the reclosing, judge that through voltage time to being installed on the terminal of tight rear end fault, can get into the closing locking state, the terminal that is positioned at rear end far away fault then gets into the separating brake blocking for the first time.Different state to system stop send electricity to make different responses, thereby realize to reduce the switch motion number of times, shorten the purpose of interruption duration.
The present invention's response allocation list to grid event under different conditions is following:
Among the present invention, with the event response of separating brake blocking orientate as locking and only locking once to the response of the separating brake of decompression incident.Can find out, through particular arrangement, device can successful locking and only locking once to the separating brake response of overcurrent decompression incident.
Another feature of the present invention is that the response flexible configuration can carry out different response configurations to the distribution system event under the different conditions as required.Start the function except that having increased overcurrent during such as normal condition; The Y that judges at voltage time is in the time; Can also dispose interim input current quick function; If the current ration of the overcurrent protection of power switch matches in this fast tripping protection definite value and the transformer station, then can the fault in the overcurrent protection scope be recovered to put in place during reclosing in the first time, and needn't cause transformer station in the fault trip second time.The separating brake blocking is by a decompression separating brake response of locking configuration.
The invention has the beneficial effects as follows: shortened the time of service restoration, reduced the action frequency of switch, strengthened adaptability the distribution network structure; Can adapt to complicated arbitrarily tree network and not needs consider many electric power networks of the factor of transshipping.
Description of drawings
The logical relation sketch map that Fig. 1 changes at normal condition, separating brake blocking, closing locking state for high-effect voltage time type distribution automation of the present invention terminal each other;
Fig. 2 is high-effect voltage time type distribution automation terminal applying examples figure in the tree network of complicacy of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed explanation.
The logical relation that change at normal condition, separating brake blocking, closing locking state each other at high-effect voltage time type distribution automation of the present invention shown in Figure 1 terminal.
Generally, terminal works of the present invention just begins to carry out state exchange after only experiencing fault current under normal condition.The purpose of conversion is in order to distinguish different state and to give the different events response characteristic to different conditions.The present invention detects overcurrent and combines with voltage time type fault distinguishing principle, only after detecting fault current, opens a time window and whether detects decompression, and other situation is ignored the decompression incident; Meanwhile; Conventional voltage time discrimination result is divided into two; Traditional principle has only been used a kind of situation of closing locking state, and other situation all is regarded as normal condition, and to give another kind of new state be the separating brake blocking and this improvement will be judged as the situation of rear end far away fault.At separating brake blocking terminal with locking and only locking once to the response of the separating brake of decompression incident, thereby further reduce the action frequency of switch, shorten restoring electricity the time.
The process that three kinds of states of the present invention are changed each other is following:
Under normal condition, the present invention experiences electric current and uprushes, and there is fault (possibly cause power switch tripping operation transformer station in, also possibly also not reach the fault current setting value and do not trip) this meaning switch rear end, and the terminal will be opened the Y time window and examined decompression this moment.If in the Y time window, do not have decompression, explain that switch does not trip in the transformer station, then stop the uprush response of incident of electric current.If in the Y time window, detect decompression, then trip command is sent out to its switch of controlling in the terminal, waits for the power switch reclosing first time in the transformer station.For the first time behind the reclosing, the terminal that is in the switch of gate-dividing state will be experienced a side has an electric side dead electricity, and reclosing command is sent out through the time-delay of X time in the terminal, and the next stage circuit is sent.And then, the present invention will open Y time window inspection decompression.In the Y time window, if there is not decompression, explain that fault is a rear end far away fault, the present invention gets into the separating brake blocking; If decompression explains that fault is a tight rear end fault, the present invention gets into the closing locking state.T time window inspection decompression is continued out at the terminal that gets into the separating brake blocking.If decompression in the T time window; Explain that there is permanent fault in rear end far away; Transformer station's power switch is tripped for the second time; The present invention turns back to normal condition (but lacked the divide-shut brake process one time than directly getting back to normal condition in this process, this is provided with reason place of separating brake blocking just) by the separating brake blocking; If also do not detect decompression through the T time, explain that then circuit is non-permanent fault, the present invention also turns back to normal condition (T time setting value must greater than distribution network the longest possible recovery time) by the separating brake blocking.And the terminal that gets into the closing locking state can be sent out the separating brake instruction immediately, and permanent locking reclosing command, comprises the closing by hand instruction, has only through hand-reset normal condition when the terminal just can be got back to.
The applying examples of high-effect voltage time type distribution automation terminal of the present invention shown in Figure 2 in the tree network of complicacy.
The present invention can adapt to the tree network of arbitrary complicacy and not needs check many electric power networks of overload condition, and Fault Isolation and recovery time are very short, the obvious minimizing that the switchgear action frequency is more traditional.Arabic numerals 1,2,3,4,5,6,7,8 in this example are respectively switch DL1, DL2, DL3, DL4, DL5, DL6, DL7, DL8, and wherein DL1 is a switch in the transformer station; 9,10,11,12,13,14,15,16 be respectively circuit L1, L2, L3, L4, L5, L6, L7, L8; 17 is bus.To network shown in Figure 2, if in the transformer station reclosure time to adjust be 1 second, the overcurrent protection setting time is 0.3 second; On-site terminal X time setting is 0.6 second; Y selected arbitrarily between 0.4 to 0.5 second, then under worst situation, like the L8 fault of end; Restore electricity only 4.4 seconds time, distribution switch motion number of times (not including switch motion in the transformer station) has only traditional 7/27.And network is more complicated, and the number of times that switch on average moves is just low more.Its course of action is following: circuit L8 fault, and fault current is experienced at the terminal of switch DL2, DL3, DL8, opens Y time window inspection decompression; During this period; Switch DL1 tripping operation (0.3 second) in the transformer station, the terminal of switch DL2, DL3, DL8 is sent out trip command respectively in Y time window enteroception decompression; Switch DL1 overlaps (1 second) for the first time in the transformer station then, and L1 is supplied power; A side is experienced at the terminal of DL2 has an electric side dead electricity, sends out reclosing command (0.6 second) through the X time, send electricity to L2, because the L2 fault-free, so decompression can not experienced in the terminal of DL2 in time Y, the SOT state of termination of DL2 becomes the separating brake blocking by normal condition; In like manner, the terminal of DL3 also experiences the situation the same with the terminal of DL2, and its state also becomes separating brake blocking (0.6 second) by normal condition; After L3 sent electricity, a side is experienced at the terminal of DL8 had an electric side dead electricity, sends out reclosing command through the X time; Send electricity (0.6 second) to L8, at this moment because the L8 fault, transformer substation switch DL1 trip for the second time (0.3 second); The terminal of DL8 is in Y time enteroception decompression; Its basic status becomes the closing locking attitude by normal state, simultaneously DL8 is sent out the separating brake instruction, and the closing function at locking DL8 terminal.When DL1 tripped for the second time, the terminal of DL2, DL3 to decompression, returned to normal condition in T time enteroception, but in this decompression process, DL2, DL3 are with non-shut-brake; When for the second time overlapping DL1 in the transformer station (1 second), intact distribution is disposable restores electricity for all.The used time of whole recovery, under the situation of not considering the switch motion time, about about 4.4 seconds.
And conventional principle; Network as shown in Figure 2 when the L8 fault, is that branch does not have the L5 of being, L6, L7, L8 fault; When transformer substation switch DL1 trips for the second time, L5, L6, L7, L8 will be judged as permanent fault and L5, L6, three intact circuits of L7 can not be restored electricity.
Claims (2)
1. high-effect voltage time type distribution automation terminal; It is characterized in that: the one, increase overcurrent detection at the terminal, the overcurrent detection is combined with the voltage time principle, only at the terminal that detects the fault current process; After experiencing power failure, just carry out sub-switching operation; But whether this detecting unit drops into to adjust voluntarily, can become conventional terminal when not dropping into, to adapt to the switchgear that is not equipped with current transformer; The 2nd, increased a basic status; Be the separating brake blocking, such terminal will have three kinds of basic status, just normal condition, closing locking state, separating brake blocking; But each constantly, and a terminal can only be in a kind of state in these three kinds of states; After reclosing trips again for the first time, to being installed on the terminal of tight rear end fault, can get into the closing locking state, the terminal that is positioned at rear end far away fault then gets into the separating brake blocking; Different state to system stop send electric incident can dispose different responses, thereby realize to reduce the switch motion number of times, shorten the purpose of interruption duration.
2. high-effect voltage time type distribution automation according to claim 1 terminal is characterized in that: can carry out different response configurations to the distribution system event under the different conditions as required, wherein normal condition has increased overcurrent and has started function; The separating brake blocking is by a decompression separating brake response of locking configuration; The response configuration of closing locking state is identical with tradition; Can also carry out other configuration as required; Such as under normal condition; In the Y time window that voltage time is judged, drop into current quick, if the current ration of the overcurrent protection of power switch matches in this fast tripping protection definite value and the transformer station temporarily; Then can the fault in system's overcurrent protection scope be isolated putting in place during reclosing in the first time, and the unnecessary fault trip second time that causes transformer station in.
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| CN201110272024A CN102332710A (en) | 2011-09-04 | 2011-09-04 | High-performance voltage timelike distribution automation terminal |
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| CN201110272024A CN102332710A (en) | 2011-09-04 | 2011-09-04 | High-performance voltage timelike distribution automation terminal |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904228A (en) * | 2012-10-17 | 2013-01-30 | 南京因泰莱配电自动化设备有限公司 | Protection method and protection device of power distribution network |
| CN104836215A (en) * | 2015-05-25 | 2015-08-12 | 上海华仪配电自动化有限公司 | Voltage time type intelligent switch controller control method |
| CN107492889A (en) * | 2017-10-10 | 2017-12-19 | 国网湖北省电力公司潜江市供电公司 | A kind of dynamic tuning method based on the feed line automatization terminal X times |
| CN110970876A (en) * | 2019-12-12 | 2020-04-07 | 云南电力技术有限责任公司 | Feeder automation fault isolation method and device |
| CN113097967A (en) * | 2021-03-30 | 2021-07-09 | 金昌平 | Method for automatically locking reclosure to expand terminal adaptation range according to operation condition |
| CN113991622A (en) * | 2021-10-29 | 2022-01-28 | 武汉市速隔迅联电力科技有限公司 | Feeder automation voltage-loss brake-separating delay strategy and setting method |
| CN114142445A (en) * | 2021-11-26 | 2022-03-04 | 贵州电网有限责任公司 | Electrical operation trial sending method for preventing fault amplification |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0454823A (en) * | 1990-06-22 | 1992-02-21 | Kyushu Electric Power Co Inc | Distribution system controller |
| CN101662144A (en) * | 2009-04-30 | 2010-03-03 | 胡诚 | Feeder automation processing method and device of distribution network |
-
2011
- 2011-09-04 CN CN201110272024A patent/CN102332710A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0454823A (en) * | 1990-06-22 | 1992-02-21 | Kyushu Electric Power Co Inc | Distribution system controller |
| CN101662144A (en) * | 2009-04-30 | 2010-03-03 | 胡诚 | Feeder automation processing method and device of distribution network |
Non-Patent Citations (2)
| Title |
|---|
| 张伟: "《馈线自动化智能开关整定研究及整定软件开发》", 《中国优秀硕士学位论文全文数据库》 * |
| 张延辉等: "《10kV馈线自动化解决方案探讨》", 《电力系统保护与控制》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904228A (en) * | 2012-10-17 | 2013-01-30 | 南京因泰莱配电自动化设备有限公司 | Protection method and protection device of power distribution network |
| CN102904228B (en) * | 2012-10-17 | 2016-02-24 | 南京因泰莱配电自动化设备有限公司 | A kind of guard method of power distribution network and protective device |
| CN104836215A (en) * | 2015-05-25 | 2015-08-12 | 上海华仪配电自动化有限公司 | Voltage time type intelligent switch controller control method |
| CN104836215B (en) * | 2015-05-25 | 2019-02-12 | 上海华仪配电自动化有限公司 | The control method of voltage-time type intelligent switch controller |
| CN107492889A (en) * | 2017-10-10 | 2017-12-19 | 国网湖北省电力公司潜江市供电公司 | A kind of dynamic tuning method based on the feed line automatization terminal X times |
| CN107492889B (en) * | 2017-10-10 | 2020-11-17 | 武汉市速隔迅联电力科技有限公司 | Dynamic setting method based on X time of feeder automation terminal |
| CN110970876A (en) * | 2019-12-12 | 2020-04-07 | 云南电力技术有限责任公司 | Feeder automation fault isolation method and device |
| CN113097967A (en) * | 2021-03-30 | 2021-07-09 | 金昌平 | Method for automatically locking reclosure to expand terminal adaptation range according to operation condition |
| CN113991622A (en) * | 2021-10-29 | 2022-01-28 | 武汉市速隔迅联电力科技有限公司 | Feeder automation voltage-loss brake-separating delay strategy and setting method |
| CN113991622B (en) * | 2021-10-29 | 2023-07-18 | 武汉市速隔迅联电力科技有限公司 | Feeder line automatic voltage-losing and switching-off delay strategy and setting method |
| CN114142445A (en) * | 2021-11-26 | 2022-03-04 | 贵州电网有限责任公司 | Electrical operation trial sending method for preventing fault amplification |
| CN114142445B (en) * | 2021-11-26 | 2024-04-05 | 贵州电网有限责任公司 | Electrical operation test-feeding method for preventing fault expansion |
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Application publication date: 20120125 |