CN204497849U - A kind ofly take into account measure and control device that is centralized, formula feeder automation on the spot - Google Patents
A kind ofly take into account measure and control device that is centralized, formula feeder automation on the spot Download PDFInfo
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- CN204497849U CN204497849U CN201520221665.5U CN201520221665U CN204497849U CN 204497849 U CN204497849 U CN 204497849U CN 201520221665 U CN201520221665 U CN 201520221665U CN 204497849 U CN204497849 U CN 204497849U
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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
Abstract
The utility model discloses and a kind ofly take into account measure and control device that is centralized, formula feeder automation on the spot, belong to distribution feeder automation technical field.It comprises formula feeder automation unit and centralized feeder automation unit on the spot; Formula feeder automation unit is installed on user branch feeder line on the spot; When the telecommunication of centralized feeder automation unit inside is smooth and easy, under the state of feeder line fault, centralized feeder automation unit is used for, by Long-distance Control isolated fault; Can communicate between formula feeder automation unit with centralized feeder automation unit on the spot; When above-mentioned telecommunication fault, under the state of feeder line fault, centralized feeder automation unit notifies formula feeder automation unit on the spot, and now, formula feeder automation unit is used on the spot, isolated fault.No matter whether this measure and control device communicate unimpeded, all can, when distribution network fault, realize fault location, isolate and restore electricity, and cost be controlled.
Description
Technical field
The utility model relates to distribution feeder automation technical field, particularly relates to a kind ofly taking into account measure and control device that is centralized, formula feeder automation on the spot.
Background technology
In the distribution network of China, overhead transmission line occupies sizable ratio.In overhead distribution user branch; i.e. T wiring; also when namely the responsibility separation of power supply department and user breaks down; if fault location not in time; the expansion often caused the accident; and then cause transformer station's outlet protection act, whole piece distribution backbone is had a power failure, thus causes and involve accident.According to current statistics, thisly involve the share that accident accounts for China's power distribution network total number of accident and be about 30%, in the area had even up to 70%.
Along with the requirement of power consumer to power supply reliability and the quality of power supply improves constantly, the attention degree of power supply department to distribution feeder automation is more and more higher.Feeder automation refers to the feeder line automation between transformer station's outlet to user power utilization equipment, and its content can be summarized as two broad aspect: one be that user under normal circumstances detects, DATA REASONING and running optimizatin; Two is carry out automatic location, the Fault Isolation of fault and the control that restores electricity under malfunction.
In prior art, in order to carry out automatic location, the Fault Isolation of fault under realizing malfunction and restore electricity, avoid or reduce the impact of distribution network failure on power consumer, the distribution feeder automation technical scheme of application comprises easy scheme and fault detector scheme, on the spot formula feeder automation scheme, centralized feeder automation scheme and distributed intelligence control type scheme.
Wherein,
Easy scheme and fault detector scheme with low cost.
Formula feeder automation scheme can according to the change of detection line voltage, electric current on the spot, coordinated with the automatic sectionalizer on circuit by substation exit circuit breaker or automatic circuit, repeatedly divide according to the logical order of setting, closing operation, thus complete fault insulation and resume and power.The program does not need communication support, does not need to rely on main station system yet.Such as; Authorization Notice No. is that the Chinese utility model patent of CN 202084917 U discloses one formula feeder-terminal-unit on the spot; it comprises the feeder automation unit F TU be arranged on feeder line; the input of feeder automation unit F TU is by communication control passage and feeder line supervisory control system DTU communication; the input of feeder breaker unit F TU is by protection communication channel and adjacent feeder automation unit F TU communication, and the output of feed breaker unit FTU is connected with circuit breaker.It can complete the judgement of fault coverage through the exchange of signal, and only excision faulty section both sides circuit breaker, can realize excising fault selectively, avoid the line outage of non-faulting section; Within 10 ~ 20ms time that fault occurs, completed the information exchange in the direction of fault power, each feeder automation unit F TU works alone, and accident analysis is timely, and excision fault actions is rapid, and operate time is less than 25ms.
Centralized feeder automation scheme passes through communication system by controlling center or substation, the each distribution terminal of centralized collection, comprise the fault detection information of remote terminal control system (RTU), feeder terminal unit (FTU) and power transformer detecting terminal (TTU) etc., realize fault insulation and resume according to system topology and preset algorithm and power.
Intelligent distribution type feeder automation scheme, based on the intelligent distribution type feeder automation of point-to-point communication, can carry out Fault Isolation quickly.Such as, Authorization Notice No. is that the Chinese utility model patent of CN 202872465U discloses a kind of intelligent distribution type feeder automation control system, it comprises multiple distribution terminal and multiple feeder automation control terminal, the corresponding multiple distribution terminal of each feeder automation control terminal; Each switch on the corresponding feeder line of each distribution terminal; Described feeder automation control terminal is provided with two Ethernet interfaces, and is provided with multiple serial communication interface; The serial communication interface of each distribution terminal receives the serial communication interface of corresponding feeder automation control terminal respectively; The Ethernet interface of each distribution terminal connects the first Ethernet interface of corresponding feeder automation control terminal respectively, and the second Ethernet interface of each feeder automation control terminal accesses same Ethernet.It can overcome the defect of existing feed line automatization system not easy care, is easier to safeguard.
Realizing in the utility model process, inventor finds that in prior art, at least there are the following problems:
Easy scheme and fault detector scheme can only carry out fault location, can not effectively isolated fault, more can not restore electricity.
Formula feeder automation scheme needs repeatedly to overlap in fault on the spot, causes repeat impact to system, therefore, is only applied to not too high to power supply quality requirement, that communication condition is poor outskirts of a town and rural area overhead distribution under normal circumstances.Under normal circumstances, be difficult to be applied to the region high to power supply quality requirement, the community user that such as high-tech enterprise is intensive.
Centralized feeder automation scheme needs telecommunication support, needs to set up main station system, cost of investment is higher, only be applied to the region high to power supply quality requirement under normal circumstances, if it is not be applied to the poor outskirts of a town of current condition and rural area overhead distribution, actual.Once main website paralysis or telecommunication circuit break down, feeder automation can not realize automatically, can only rely on and carry out Fault Isolation manually and restore electricity.
Intelligent distribution type feeder automation scheme needs optical fiber communication network, once there is communication failure, cannot realize feeder automation; In addition, intelligent distribution type feeder automation scheme needs the information obtaining downstream node device, and when network topology is complicated, when upstream, downstream neighbor all have multiple device, logical process will be very complicated.
Utility model content
In view of this, the utility model provides a kind of and takes into account measure and control device that is centralized, formula feeder automation on the spot, whether main purpose is to provide a kind of telecommunication of no matter centralized feeder automation unit inside unimpeded, all can when distribution network fault, realize fault location, isolate and restore electricity, and cost is controlled, thus be more suitable for practicality.
In order to achieve the above object, the utility model mainly provides following technical scheme:
Taking into account that the utility model embodiment provides measure and control device that is centralized, formula feeder automation on the spot comprises: formula feeder automation unit and centralized feeder automation unit on the spot; The described feeder automation of formula on the spot unit is installed on user branch feeder line;
When the telecommunication of described centralized feeder automation unit inside is smooth and easy, under the state of feeder line fault, described centralized feeder automation unit is used for, by Long-distance Control isolated fault;
The described feeder automation of formula on the spot unit can communicate with between described centralized feeder automation unit;
When the telecommunication fault of described centralized feeder automation unit inside, under the state of feeder line fault, formula feeder automation unit on the spot described in described centralized feeder automation unit notice, now, the described feeder automation of formula on the spot unit is used for isolated fault.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
As preferably, the described feeder automation of formula on the spot unit comprises circuit breaker or on-load switch, described circuit breaker or on-load switch are installed on feeder line, when needs isolated fault, described circuit breaker or on-load switch perform sub-switching operation, described circuit breaker or on-load switch can with described centralized feeder automation unit communication.
As preferably, described centralized feeder automation unit comprises measurement and control unit, remote control terminal,
Described measurement and control unit is used for the real time execution working condition signal of feeder line to be sent to described remote control terminal; Under the state of feeder line fault, described measurement and control unit is also for isolating feeder line fault;
Described measurement and control unit also for the described feeder automation of formula on the spot unit communication;
Described remote control terminal is for receiving the signal collected from described measurement and control unit; Under the state of feeder line fault, described remote control terminal sends control command by telecommunication to described measurement and control unit, isolated fault.
As preferably, described centralized feeder automation unit comprises measurement and control unit, remote control terminal,
Described measurement and control unit is used for the real time execution working condition signal of feeder line to be sent to described remote control terminal; Under the state of feeder line fault, described measurement and control unit is also for isolating feeder line fault;
Described measurement and control unit is also for communicating with described circuit breaker or on-load switch;
Described remote control terminal is for receiving the signal collected from described measurement and control unit; Under the state of feeder line fault, described remote control terminal sends control command by telecommunication to described measurement and control unit, isolated fault.
As preferably, describedly take into account measure and control device that is centralized, formula feeder automation on the spot and also comprise signal pickup assembly, described signal pickup assembly is integrated on described circuit breaker or on-load switch, described feeder line real time execution working condition signal for gathering the real time execution operating mode of feeder line, and is sent to described measurement and control unit by described signal pickup assembly.
As preferably, the communication between the described feeder automation unit of formula on the spot and described centralized feeder automation unit is wire communication or radio communication.
As preferably, described remote control terminal realizes based on DEP-900 series feeder terminal unit or Dongfang Electronics DF9311 series feeder terminal unit.
As preferably, the fault that feeder line produces is transient fault, when described transient fault is eliminated, described circuit breaker or on-load switch can also perform closing operation again.
As preferably; described measurement and control unit sends the real time execution working condition signal of feeder line to described remote control terminal; and; Real-time Feedback result of calculation after described remote control terminal calculates according to the relay protective scheme established in it; when described remote control terminal or measurement and control unit nonreply, response mess code or response time delay time, described centralized feeder automation unit is to the telecommunication obstacle of the described centralized feeder automation unit inside of the described feeder automation of formula on the spot unit report.
As preferably, described measurement and control unit and remote control terminal self carry self-checking system respectively, when described measurement and control unit or the self-contained self-checking system report obstacle of remote control terminal, described centralized feeder automation unit is also to the telecommunication obstacle of the described centralized feeder automation unit inside of the described feeder automation of formula on the spot unit report.
Taking into account that the utility model embodiment provides is centralized, the measure and control device of formula feeder automation comprises formula feeder automation unit and centralized feeder automation unit on the spot on the spot, when the telecommunication of centralized feeder automation unit inside is smooth and easy, can application sets Chinese style feeder automation cell isolation fault, when the telecommunication fault of centralized feeder automation unit inside, formula feeder automation cell isolation fault on the spot can be applied, therefore, no matter whether the communication of centralized feeder automation unit inside is unimpeded, all can when distribution network fault, realize fault location, isolate and restore electricity.And, because the feeder automation unit of formula on the spot wherein applied and centralized feeder automation unit are all on the basis of the existing feeder automation unit of formula on the spot and centralized feeder automation unit, set up proximity communication module between which, make can realize short-range communication between them, therefore, cost is controlled.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and is not thought restriction of the present utility model.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is for taking into account of providing of the utility model embodiment one is centralized, the schematic diagram of the measure and control device of formula feeder automation on the spot;
Fig. 2 is for taking into account of providing of the utility model embodiment two is centralized, the schematic diagram of the measure and control device of formula feeder automation on the spot;
Fig. 3 flows to schematic diagram for the signal taking into account each functional module of measurement and control unit that is centralized, that apply in formula feeder automation measure and control device on the spot provided arbitrary in the utility model embodiment one ~ tetra-.
Embodiment
The utility model is for solving Problems existing in prior art feeder automation scheme, provide and a kind ofly take into account measure and control device that is centralized, formula feeder automation on the spot, with no matter, whether the communication of centralized feeder automation unit inside is unimpeded, all can when distribution network fault, realize fault location, isolate and restore electricity, and cost is controlled.
The technical scheme of the utility model embodiment is for solving the problems of the technologies described above, and general thought is as follows:
Taking into account that the utility model embodiment provides measure and control device that is centralized, formula feeder automation on the spot comprises: formula feeder automation unit and centralized feeder automation unit on the spot;
Formula feeder automation unit is installed on user branch feeder line on the spot;
When the telecommunication of centralized feeder automation unit inside is smooth and easy, under the state of feeder line fault, centralized feeder automation unit is used for, by Long-distance Control isolated fault; Can communicate between formula feeder automation unit with centralized feeder automation unit on the spot;
When the telecommunication fault of centralized feeder automation unit inside, under the state of feeder line fault, centralized feeder automation unit notifies formula feeder automation unit on the spot, and now, formula feeder automation unit is used for isolated fault on the spot.
Taking into account that the utility model embodiment provides is centralized, the measure and control device of formula feeder automation comprises formula feeder automation unit and centralized feeder automation unit on the spot on the spot, when the telecommunication of centralized feeder automation unit inside is smooth and easy, can application sets Chinese style feeder automation cell isolation fault, when the telecommunication fault of centralized feeder automation unit inside, formula feeder automation cell isolation fault on the spot can be applied, therefore, no matter whether the communication of centralized feeder automation unit inside is unimpeded, all can when distribution network fault, realize fault location, isolate and restore electricity.And, because the feeder automation unit of formula on the spot wherein applied and centralized feeder automation unit are all on the basis of the existing feeder automation unit of formula on the spot and centralized feeder automation unit, set up proximity communication module between which, make can realize short-range communication between them, therefore, cost is controlled.
For further setting forth the utility model for the technological means reaching predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of measure and control device of, on the spot formula feeder automation centralized according to taking into account of the utility model proposes, structure, feature and effect thereof, be described in detail as follows.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
Term "and/or" herein, being only a kind of incidence relation describing affiliated partner, can there are three kinds of relations in expression, such as, A and/or B, concrete is interpreted as: can include A and B simultaneously, can individualism A, also can individualism B, above-mentioned three kinds of any one situations can be possessed.
Embodiment one
See accompanying drawing 1, taking into account that the utility model embodiment one provides is centralized, the measure and control device of formula feeder automation realizes based on the structure shown in accompanying drawing 1 on the spot, wherein, the main line 4 of transformer station 1 after outlet breaker 2 is provided with multiple block switch 3a, 3b, 3c wherein, main line 4 draws user branch feeder line 5 between block switch 3a and 3b, formula feeder automation unit 6 is installed on user branch feeder line 5 on the spot, the arrow 7 pointing to formula feeder automation unit 6 on the spot from measurement and control unit 9 represents that signal is sent to formula feeder automation unit 6 on the spot from measurement and control unit 9, namely on the spot formula feeder automation unit 6 can and measurement and control unit 9 between communication be unidirectional, label be 10 parts represent for the communication line between measurement and control unit 9 and remote control terminal.
In the present embodiment, formula feeder automation unit 6 comprises circuit breaker on the spot, and circuit breaker is installed on feeder line 5, when needs isolated fault, circuit breaker perform sub-switching operation, circuit breaker can with centralized feeder automation unit communication.
In the present embodiment, centralized feeder automation unit comprises measurement and control unit 9, remote control terminal, measurement and control unit 9 is for by the real time execution working condition signal of feeder line (in the present embodiment, real time execution working condition signal comprises the electric parameters such as voltage, electric current, frequency, phase angle) be sent to remote control terminal (in the present embodiment, establish logic can carry out the relay protective scheme such as overcurrent, zero sequence overcurrent, inverse-time overcurrent in remote control terminal and calculate); Under the state of feeder line fault, measurement and control unit 9 is also for isolating feeder line fault; Measurement and control unit 9 also for formula feeder automation unit communication on the spot; Remote control terminal is for receiving the signal from measurement and control unit 9; Under the state of feeder line fault, remote control terminal is by Long-distance Control isolated fault.
In the present embodiment, measurement and control unit 9 is for communicating with circuit breaker.In this case, taking into account that the utility model embodiment one provides is centralized, the measure and control device of formula feeder automation on the spot can excise single phase ground fault in district automatically, and phase-to phase fault.
In the present embodiment, Selection of Circuit Breakers be FZW28-12/630-20 house dog demarcation circuit breaker.Its function mainly comprises:
1) automatically excise single phase ground fault: when user's branch line generation single phase ground fault, demarcation switch automatic brake separating, gets rid of faulty spur, ensure other branch service safe operation on transformer station and feeder line.
2) automatically phase fault is disconnected: when user's branch line generation phase fault, demarcation circuit breaker immediately separating brake gets rid of faulty line.Faulty line is isolated, and other branch service on feeder line is restored electricity rapidly.
3) quick position fault point: after user's fault of branch line causes demarcation switch action, only responsibility user has a power failure, and can active reporting fault message, makes Utilities Electric Co. can rapid clear and definite accident point, carries out in-situ processing in time, faulty line is restored electricity as early as possible.
4) supervisory user load: detection data can be sent to electrical management center by demarcation circuit breaker, realize the real-time monitoring to distant place load.
The troubleshooting mode of FZW28-12/630-20 house dog demarcation circuit breaker is as shown in the table
In the present embodiment, remote control terminal realizes based on DEP-900 series feeder terminal unit FTU or Dongfang Electronics DF9311 series feeder terminal unit.Wherein, DEP-900 series FTU, its capacity is 8 tunnel remote measurement (YC) amounts, 16 tunnel remote signalling (YX) amounts, 2 tunnel remote control (YK) amounts, 4 road RS-232/485 interfaces.Its major function has: data acquisition, feeder line is monitored, fault detect, switch deciliter controls, the self-recoverage that automatic fault isolation and faulty line are powered, automatic Load transfer, storage and report load value, accept remote operation instruction and forward collection data, information, possess the communication interface, Sampling Interface and the output interface that adapt, adapt to indoor external environment requirement.DEP-900 series FTU also possesses the function of fault current state differential protection.It, based on fault current state differential principle, can be used as the protection for feed line of each circuit breaker.Feeder breaker not equipment is used and backup protection, and when main protection tripping, transformer station's outlet switch tripping, is then differentiated by power distribution network management software, with remote control mode isolated fault.This district's power distribution network adopts ring network structure, and power supply takes from the different buses of 110kV transformer station 10kV side, runs by closed-loop fashion.When system jam, can instantaneous excision fault, ensure fault-free district uninterrupted power supply, therefore high requirement is proposed to the electric equipment of power distribution network and protected mode, now, can only the very strong DEP-900 series FTU of selectivity.
See accompanying drawing 3, in the present embodiment, measurement and control unit 9 is made up of the main module such as CPU board, power panel, human-machine interaction board, communication module, power management module, storage battery, is built in the box cabinet of stainless steel.Cabinet is arranged on below Switch main body usually, by Aviation cable connector, and connecting valve body, PT, CT etc., to obtain the electric parameters such as working power, voltage, electric current, and the state information such as the position of the switch, energy storage state.During operation; device Real-time Collection 2 road voltage (Uab; Ucb), 4 road electric current (Ia; Ib; Ic, I0), and the position of the switch, energy storage state etc.; realize the functions such as overcurrent one section, overcurrent two sections, overcurrent three sections, zero sequence overcurrent, overvoltage protection, reclosing, rear acceleration, thus form formula protection for feed line function on the spot.When fault, measurement and control unit 9 energy cog region internal fault (external area error does not respond), and isolated, make fault can not feed through to main line 4, thus the normal power supply of main line 4 can not be affected; If transient fault, can also be powered by reclosing functional rehabilitation, thus achieve formula feeder automation function on the spot.This function does not need the support of network, main website or substation system, with low cost, simple and reliable, is specially adapted to the operation monitoring of T wiring user.Measurement and control unit 9 has observing and controlling function simultaneously, and electric current, voltage telemeering accuracy of measurement can reach 5 ‰, and active power, reactive power, power factor remote measurement accuracy of measurement can reach 1%; Can detection line electric current 2 ~ 13 subharmonic; 4 way switch quantitative change position remote signalling can be monitored.Can realize the seamless switching of the automatic maintenance to storage battery, main power supply, after main power source dead electricity, device normally works and is not less than 12 hours.About centralized feeder automation unit, measurement and control unit 9 passes through GPRS, the communication modules such as Ethernet, connect power distribution automation main website or substation system, by above-mentioned electric parameters (voltage, electric current, frequency, meritorious, idle, power factor), quantity of state (divide-shut brake position, energy storage state), main website or substation system is sent to by the IEC101 stipulations of standard or IEC104 stipulations, and receive from main website or (the divide-shut brake order of substation system control command, involution order, setting definite value etc.), straighforward operation is carried out to feeder switch, thus the real-time monitoring realized power distribution network, Fault Identification, Fault Isolation, network reconfiguration etc.This function needs main website or substation system, network coordinates, although overall cost is slightly high, but main website or substation system can monitor the ruuning situation of responsible consumer in real time, definite value can be adjusted and carry out adjusting device operational mode, to ensure responsible consumer Fault Isolation, restore electricity, the overall situation of reliable electricity consumption and electrical network runs more beneficial.
Under the condition of the measure and control device of, formula feeder automation on the spot centralized taking into account of providing of the utility model embodiment one, measurement and control unit 9 needs to gather real time execution working condition signal by distribution transformer monitoring terminal (TTU), carry out Data Control communicates with realization.
Wherein, measurement and control unit 9 sends the real time execution working condition signal of feeder line to remote control terminal; and; Real-time Feedback result of calculation after remote control terminal calculates according to the relay protective scheme established in it; when for communication line 10 obstacle between measurement and control unit 9 and remote control terminal; the result presented is remote control terminal or measurement and control unit 9 nonreply, response mess code or response time delay, and centralized feeder automation unit reports the telecommunication obstacle of centralized feeder automation unit inside to formula feeder automation unit on the spot.In the present embodiment, measurement and control unit 9 reports the telecommunication obstacle of centralized feeder automation unit inside to circuit breaker, thus starts formula feeder automation unit on the spot, single phase ground fault in isolated area, and phase-to phase fault.
In addition, because the telecommunication obstacle of centralized feeder automation unit inside is except by except causing for the communication line 10 between measurement and control unit 9 and remote control terminal, can also be caused by the fault of measurement and control unit 9 self or remote control terminal self respectively, therefore, measurement and control unit 9 and remote control terminal self carry self-checking system respectively, when measurement and control unit 9 or remote control terminal self-contained self-checking system report obstacle time, centralized feeder automation unit also reports the telecommunication obstacle of centralized feeder automation unit inside to formula feeder automation unit on the spot.In the present embodiment, measurement and control unit 9 reports the telecommunication obstacle of centralized feeder automation unit inside to circuit breaker, thus starts formula feeder automation unit on the spot, single phase ground fault in isolated area, and phase-to phase fault.
Embodiment two
The difference of the measure and control device of, on the spot formula feeder automation centralized with taking into account of providing of the utility model embodiment one is, taking into account that the utility model embodiment two provides is centralized, in the measure and control device of formula feeder automation on the spot, formula feeder automation unit 6 selects on-load switch to substitute on the spot, it can excise single phase ground fault in district, and isolates phase-to phase fault by substation exit circuit breaker 2 cooperation.
Embodiment three
See accompanying drawing 2, the basis of the measure and control device of, on the spot formula feeder automation centralized taking into account of providing of the utility model embodiment one or embodiment two is improved, taking into account that the utility model embodiment three provides is centralized, the measure and control device of formula feeder automation on the spot also comprises signal pickup assembly (not shown in accompanying drawing 2), signal pickup assembly is integrated on circuit breaker or on-load switch, feeder line real time execution working condition signal for gathering the real time execution operating mode of feeder line, and is sent to measurement and control unit by signal pickup assembly.Now, on the spot formula feeder automation unit 6 can and measurement and control unit 9 between communication be two-way, the arrow 7 pointing to formula feeder automation unit 6 on the spot from measurement and control unit 9 represents that signal is sent to formula feeder automation unit 6 on the spot from measurement and control unit 9, and the arrow 8 pointing to measurement and control unit 9 from formula feeder automation unit 6 on the spot represents that signal is sent to measurement and control unit 9 from formula feeder automation unit 6 on the spot.In such cases, acquisition module is directly integrated on the spot on formula feeder automation unit 6, and gives formula feeder automation unit 6 communication function on the spot, the function of formula feeder automation unit 6 self on the spot can be made more powerful.
Wherein, the communication on the spot between formula feeder automation unit 6 and centralized feeder automation unit is wire communication or radio communication.For the present embodiment, namely circuit breaker or the communication between on-load switch and measurement and control unit 9 are wire communication or radio communication, and wherein, wire communication can be communication data line communication by having both-end USB interface or be communicated by Ethernet; Radio communication can realize based on Bluetooth technology, or is realized by Wi-Fi technology.Wherein, the signal transmission distance with the communication data line of both-end USB interface, Bluetooth technology or Wi-Fi technology is shorter, and if communicated by Ethernet, then both can realize short-range communication, can telecommunication have been realized again.
Embodiment four
In the utility model embodiment one ~ embodiment three, arbitrary basis taking into account the measure and control device of centralized, formula feeder automation on the spot provided is improved, taking into account that the utility model embodiment four provides is centralized, in the measure and control device of formula feeder automation on the spot, the fault that feeder line produces is transient fault, when transient fault is eliminated, circuit breaker or on-load switch can also perform closing operation again.Thus the automatic eliminating function that taking into account that the utility model embodiment four provides is centralized, the measure and control device of formula feeder automation on the spot can realize transient fault.
Above, it is only preferred embodiment of the present utility model, not do any pro forma restriction to the utility model, any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. take into account a measure and control device that is centralized, formula feeder automation on the spot, it is characterized in that, comprise formula feeder automation unit and centralized feeder automation unit on the spot; The described feeder automation of formula on the spot unit is installed on user branch feeder line;
When the telecommunication of described centralized feeder automation unit inside is smooth and easy, under the state of feeder line fault, described centralized feeder automation unit is used for, by Long-distance Control isolated fault;
The described feeder automation of formula on the spot unit can communicate with between described centralized feeder automation unit;
When the telecommunication fault of described centralized feeder automation unit inside, under the state of feeder line fault, formula feeder automation unit on the spot described in described centralized feeder automation unit notice, now, the described feeder automation of formula on the spot unit is used for, isolated fault.
2. according to claim 1ly take into account measure and control device that is centralized, formula feeder automation on the spot, it is characterized in that, the described feeder automation of formula on the spot unit comprises circuit breaker or on-load switch, described circuit breaker or on-load switch are installed on feeder line, when needs isolated fault, described circuit breaker or on-load switch perform sub-switching operation, described circuit breaker or on-load switch can with described centralized feeder automation unit communication.
3. according to claim 1ly take into account measure and control device that is centralized, formula feeder automation on the spot, it is characterized in that, described centralized feeder automation unit comprises measurement and control unit, remote control terminal,
Described measurement and control unit is used for the real time execution working condition signal of feeder line to be sent to described remote control terminal; Under the state of feeder line fault, described measurement and control unit is also for isolating feeder line fault;
Described measurement and control unit also for the described feeder automation of formula on the spot unit communication;
Described remote control terminal is for receiving the signal collected from described measurement and control unit; Under the state of feeder line fault, described remote control terminal sends control command by telecommunication to described measurement and control unit, isolated fault.
4. according to claim 2ly take into account measure and control device that is centralized, formula feeder automation on the spot, it is characterized in that, described centralized feeder automation unit comprises measurement and control unit, remote control terminal,
Described measurement and control unit is used for the real time execution working condition signal of feeder line to be sent to described remote control terminal; Under the state of feeder line fault, described measurement and control unit is also for isolating feeder line fault;
Described measurement and control unit is also for communicating with described circuit breaker or on-load switch;
Described remote control terminal is for receiving the signal collected from described measurement and control unit; Under the state of feeder line fault, described remote control terminal sends control command by telecommunication to described measurement and control unit, isolated fault.
5. according to claim 4ly take into account measure and control device that is centralized, formula feeder automation on the spot, it is characterized in that, also comprise signal pickup assembly, described signal pickup assembly is integrated on described circuit breaker or on-load switch, described feeder line real time execution working condition signal for gathering the real time execution operating mode of feeder line, and is sent to described measurement and control unit by described signal pickup assembly.
6. take into account measure and control device that is centralized, formula feeder automation on the spot according to claim 1 or 5, it is characterized in that, the communication between the described feeder automation unit of formula on the spot and described centralized feeder automation unit is wire communication or radio communication.
7. described take into account measure and control device that is centralized, formula feeder automation on the spot according to arbitrary in claim 3 ~ 5, it is characterized in that, described remote control terminal realizes based on DEP-900 series feeder terminal unit or Dongfang Electronics DF9311 series feeder terminal unit.
8. taking into account according to claim 2 or 5 is centralized, the measure and control device of formula feeder automation on the spot, it is characterized in that, the fault that feeder line produces is transient fault, when described transient fault is eliminated, described circuit breaker or on-load switch can also perform closing operation again.
9. according in claim 3 ~ 5 arbitrary described take into account centralized, the measure and control device of formula feeder automation on the spot, it is characterized in that, described measurement and control unit sends the real time execution working condition signal of feeder line to described remote control terminal, and, Real-time Feedback result of calculation after described remote control terminal calculates according to the relay protective scheme established in it, when described remote control terminal or measurement and control unit nonreply, when response mess code or response time delay, described centralized feeder automation unit is to the telecommunication obstacle of the described centralized feeder automation unit inside of the described feeder automation of formula on the spot unit report.
10. described take into account measure and control device that is centralized, formula feeder automation on the spot according to arbitrary in claim 3 ~ 5, it is characterized in that, described measurement and control unit and remote control terminal self carry self-checking system respectively, when described measurement and control unit or the self-contained self-checking system report obstacle of remote control terminal, described centralized feeder automation unit is also to the telecommunication obstacle of the described centralized feeder automation unit inside of the described feeder automation of formula on the spot unit report.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105025107A (en) * | 2015-07-28 | 2015-11-04 | 国网北京市电力公司 | Power failure information processing method, client and server |
| CN105137184A (en) * | 2015-09-21 | 2015-12-09 | 广东电网有限责任公司东莞供电局 | 10kV bus harmonic monitoring method based on feeder line protection |
| CN108347032A (en) * | 2018-03-08 | 2018-07-31 | 山东山矿测控技术有限公司 | A method of preventing protective relaying maloperation work |
| CN109444671A (en) * | 2018-12-21 | 2019-03-08 | 云南电网有限责任公司电力科学研究院 | A kind of type feeder automation remote test system on the spot |
| CN110912075A (en) * | 2019-11-15 | 2020-03-24 | 国网浙江省电力有限公司 | Integrated feeder terminal and distributed feeder automation method thereof |
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2015
- 2015-04-13 CN CN201520221665.5U patent/CN204497849U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105025107A (en) * | 2015-07-28 | 2015-11-04 | 国网北京市电力公司 | Power failure information processing method, client and server |
| CN105137184A (en) * | 2015-09-21 | 2015-12-09 | 广东电网有限责任公司东莞供电局 | 10kV bus harmonic monitoring method based on feeder line protection |
| CN105137184B (en) * | 2015-09-21 | 2018-01-30 | 广东电网有限责任公司东莞供电局 | A kind of 10kV bus method for monitoring harmonic wave based on protection for feed line |
| CN108347032A (en) * | 2018-03-08 | 2018-07-31 | 山东山矿测控技术有限公司 | A method of preventing protective relaying maloperation work |
| CN109444671A (en) * | 2018-12-21 | 2019-03-08 | 云南电网有限责任公司电力科学研究院 | A kind of type feeder automation remote test system on the spot |
| CN109444671B (en) * | 2018-12-21 | 2021-08-24 | 云南电网有限责任公司电力科学研究院 | On-site feeder automation remote test system |
| CN110912075A (en) * | 2019-11-15 | 2020-03-24 | 国网浙江省电力有限公司 | Integrated feeder terminal and distributed feeder automation method thereof |
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