CN201656457U - Distribution line troubleshooting control system - Google Patents
Distribution line troubleshooting control system Download PDFInfo
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- CN201656457U CN201656457U CN201020130098XU CN201020130098U CN201656457U CN 201656457 U CN201656457 U CN 201656457U CN 201020130098X U CN201020130098X U CN 201020130098XU CN 201020130098 U CN201020130098 U CN 201020130098U CN 201656457 U CN201656457 U CN 201656457U
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Abstract
The utility model relates to a distribution line troubleshooting control system, which comprises: the line information monitored by a monitor is compared with the setting threshold, in case of exceeding the setting threshold, and sent to a local low-voltage monitoring unit; the local low-voltage monitoring unit sends the data to an adjacent low-voltage monitoring unit by the local wireless communication; the low-voltage monitoring unit judges whether the fault occurs in the local monitoring section according to the analysis data returned by the adjacent low-voltage monitoring unit and the self-information, if so, the breaking operation is executed to isolate the local monitoring section and the fault information is send to a host computer; the host computer positions the section where the fault occurs and sends the related information to the designated mobile phone. After troubleshooting, the host computer sends the power supply recovery instruction to the low-voltage monitoring unit. The distribution line troubleshooting control system has the beneficial effect: the total time from monitoring the fault indication in the local section to the breaking operation is no more than 300ms, which does not influence the power utilization in the section where the power runs normally in the same line, improves the troubleshooting efficiency and the like.
Description
Technical field the utility model relates to the test of electrical property, particularly relate to electric equipment, circuit or element carry out short circuit, open circuit, the test of leakage or incorrect connection, relate in particular to the fault detect control system of distribution line.
The background technology distribution line is made up of many electric equipments, and it is inevitable that these electric equipments break down in running.When fault takes place, detect faulty equipment fast and carry out fast and regular link between disjunction separate that to handle, accurately provide position that fault takes place to be convenient to staff's maintenance and to recover the faulty equipment operation simultaneously at the excision faulty equipment be the basic task that line fault detects control.
Existing fault detection method comprises two kinds: a kind of is that circuit breaker, automatic circuit or sectionalizer etc. are set on the line.These equipment are independently finished fault verification according to preset condition such as electric current, voltage and the number of stoppages, realize disjunction and recovery, isolated fault section, and the power supply that recovers the fault-free section.Circuit breaker, automatic circuit, sectionalizer are provided with local faulty indication, according to faulty indication, find fault section by the line inspection personnel.When short circuit took place, short dot had many places execution disjunction to the circuit between power supply, so the fault effects face is big, when segmentation more for a long time, isolated fault, transfer load time were several minutes, and automatic circuit frequent tripping operation also can occur, overlap phenomenon, impacts bigger to the circuit power consumption equipment.
Another kind is that detection information is aggregated into host computer by the telecommunication mode, make the judgement of fault point by host computer, issue the commands for controlling disjunction again, total break-time may reach tens of seconds, long-play can bring many harm to system under failure condition, and the reliability of telecommunication also is difficult to guarantee the requirement of disjunction control.
Utility model content the technical problems to be solved in the utility model is to avoid above-mentioned the deficiencies in the prior art part and proposes a kind of distribution line failure detection control system, when distribution line breaks down, fast detecting be out of order information and and adjacent node relatively after, realize distribution line failure disjunction separation processing immediately, occur in 0.3 second, finishing from fault to the disjunction processing, and the not disjunction of fault-free section, the accurate location of having realized fault simultaneously.After the full-time staff fixes a breakdown restoration information is uploaded, sent the instruction that restores electricity to monitoring unit simultaneously, the fault section that control has been repaired restores electricity.
The utility model solve the technical problem can be by realizing by the following technical solutions:
Design, a kind of distribution line failure of use detect control system, comprising:
Monitor is arranged on the distribution line, is used to monitor the fault message of distribution line, and the fault message that monitors is sent to local low pressure monitoring unit by the local radio communication mode immediately;
The low pressure monitoring unit comprises monitor terminal and circuit breaker, is arranged on the basic routing line and important branch circuit of distribution line; Described monitor terminal has unique address information, be used for the information of sending and the described fault message of self and judge this monitoring section whether indication of needs control fault information and circuit breaker execution breaking operation, and fault message and circuit breaker execution result information are sent to host computer by the telecommunication mode according to contiguous monitor terminal;
Host computer, be used to receive the fault message that monitor terminal sends, the section position that fault location takes place, and relevant information sent to designated mobile phone by the short message communication mode, and after the full-time staff gets rid of line fault, send the instruction that restores electricity to monitor terminal by the telecommunication mode.
Described monitor is arranged between each phase line of user's branched line of distribution line or two monitor terminals on each phase line, and described monitor has unique address information.
Described monitor is the ring-type forceps type structure, directly is stuck on the distribution line.
Described monitor comprises current transformer, current signal pretreatment module, single-chip microcomputer wireless communication module and power management module, described current transformer is electrically connected with the current signal pretreatment module, the single-chip microcomputer wireless communication module is connected with power management module with the current signal pretreatment module respectively, and described power management module also is connected with the current signal pretreatment module.
Compare with prior art, technique effect of the present utility model is: be accurate in fault location under the prerequisite of a control section (the control section is that the circuit node of being separated by monitoring unit is distinguished), total indication break-time is not more than 300ms, and does not influence the mains side section with normal operation on the circuit; By the telecommunication mode fault message is uploaded to host computer, (the monitoring section is to be distinguished by the circuit node that monitor is separated can be accurate to a monitoring section to fault location, be not more than the control section), improved fault detect efficient and accuracy rate, improved power supply reliability greatly.
Description of drawings
Fig. 1 is the principle schematic that the utility model distribution line failure detects the control system preferred embodiment;
Fig. 2 is the modular structure schematic diagram of monitor in the described preferred embodiment;
Fig. 3 is the schematic diagram of communicating by letter between monitor and the monitoring unit in the described preferred embodiment;
Fig. 4 is the schematic flow sheet that the utility model distribution line failure detects control method;
Fig. 5 is a distribution line list radiation net schematic diagram;
Fig. 6 is a distribution line multinode radiation net schematic diagram.
Embodiment is described in further detail below in conjunction with the preferred embodiment shown in the accompanying drawing.
As Fig. 1, shown in Figure 3, a kind of distribution line failure detects control system, comprises
Monitor 1 is arranged on the distribution line, is used to monitor the fault message of distribution line, and the fault message that monitors is sent to local low pressure monitoring unit by the local radio communication mode immediately;
Low pressure monitoring unit 2 comprises monitor terminal 21 and circuit breaker 22, is arranged on the basic routing line and important branch circuit of distribution line; Described monitor terminal 21 has unique address information, the information and the described fault message of self that are used for sending according to contiguous monitor terminal judge whether needs control circuit breaker 22 is carried out faulty indication and faulty line breaking operation to this monitoring section, and by the telecommunication mode fault message and circuit breaker execution result information are sent to host computer;
Host computer 3, be used to receive the fault message that monitor terminal sends, the section position that fault location takes place, and relevant information sent to designated mobile phone by the short message communication mode, and after the full-time staff gets rid of line fault, send the instruction that restores electricity to monitor terminal by the telecommunication mode.
Described monitor is the ring-type forceps type structure, directly is stuck between each phase line of user's branched line of distribution line or two monitor terminals on each phase line, and described monitor has unique address information.As shown in Figure 2, monitor 1 comprises current transformer 11, current signal pretreatment module 12, single-chip microcomputer wireless communication module 13 and power management module 15, described current transformer 11 is electrically connected with current signal pretreatment module 12, single-chip microcomputer wireless communication module 13 is electrically connected with current signal pretreatment module 12 and power management module 15 respectively, and described power management module 15 also is electrically connected with current signal pretreatment module 12.The monitor power supply adopts big capacity environmental protection lithium argon battery.
Described monitor 1 adopts opening current transformer 11 to gather line current signal in real time, after current signal pretreatment module 12 is carried out preliminary treatment with line current signal, single-chip microcomputer wireless communication module 13 with pretreated line current and the current threshold that is provided with in it relatively, when line current surpasses current threshold, then be judged as line fault.
The fault message of monitor is sent to local low pressure monitoring unit by local wireless, is sent to host computer by this unit monitors terminal by telecommunication again, carries out the comprehensive computer management.The single-chip microcomputer wireless communication module 13 of monitor is in resting state when flat, wake up once every the 5ms time, detect this phase circuit current measurement value, every the 24h time wake up and with the communication of low pressure monitoring unit once, receive parameter setting and control command, detected parameters such as the fault current threshold value of monitor can be by monitor terminal or host computer setting.Monitor 1 sends fault message immediately to the low pressure monitoring unit after monitoring fault message, then by regional network and contiguous monitor terminal information exchange.
With short-distance wireless self-organizing regional network communication linkage, specify wherein a monitor terminal and the direct telecommunication of described host computer between each monitor terminal 21.Described telecommunication mode is GPRS/CDMA, 3G, fiber optics or lead communication.Monitor terminal makes its communication module be in the reception attitude all the time, continue to receive current signal that monitor 1 sends, circuit breaker 22 before staged operation and voltage signal afterwards and power factor, and can accept the host computer inquiry at any time.
Distribution line failure detects the host computer of control system, receive the information that low pressure monitoring unit 2 is passed back by telecommunication, information is handled in real time, in conjunction with the distribution management information system, displayed record fault message, control information, and relevant information is sent to the mobile phone of appointment by note.Fault is got rid of the back and is assigned the instruction that restores electricity from host computer, monitor terminal control breaker closing.
Host computer can be according to the circuit service requirement, the calculating malfunction determination parameter of adjusting, according to the task scheme of customization, whether regular check monitor and short-distance wireless network operate as normal, timing acquiring user's data designated item, and the function such as inquiry, analysis, derivation of task data is provided.
As shown in Figure 4, utilize the distribution line failure of system of the present invention to detect control method, may further comprise the steps:
1. be arranged at distribution line A phase, B phase, C and go up the fault message of the monitor monitoring distribution line of each section mutually, described each monitor has unique address information;
2. the every interval of described monitor one setting-up time wake the monitoring sensor line signal up and the monitoring threshold ratio set with it, if surpass setting threshold, send to local low pressure monitoring unit, local low pressure monitoring unit by the local radio communication mode immediately the fault message that monitors is sent to the contiguous low pressure monitoring unit of this section on the basic routing line that is arranged at distribution line and the important branch circuit immediately by the area communication mode, described each low pressure monitoring unit has unique address information;
3. described local low pressure monitoring unit returns the analysis data and the information of self of coming according to contiguous low pressure monitoring unit and judges whether fault occurs in this monitoring section, occur in this monitoring section if judged result is a fault, then carry out breaking operation and isolate this monitoring section;
4. the every interval of the monitor of described this section setting-up time wakes up and the communication of described low pressure monitoring unit, receives detected parameters setting and control command;
5. described local low pressure monitoring unit sends to host computer by the telecommunication mode with fault message and disjunction execution result information;
6. described host computer receives the fault message that local low pressure monitoring unit sends, and the section position that fault location takes place allows the full-time staff get rid of line fault by the mobile phone that the short message communication mode sends to appointment relevant information;
7. described host computer receives the restoration information of getting rid of line fault, sends the instruction that restores electricity by the telecommunication mode to described low pressure monitoring unit, and the fault section that this low pressure monitoring unit control has been repaired restores electricity.
The distribution line failure testing process is specific as follows:
Do not considering that under the prerequisite that the ring-like distribution and the distribution energy are incorporated into the power networks, fault detect can be adopted following disjunction decision criteria, this criterion adapts to the arbitrary network topological structure.
The disjunction decision criteria: insert all monitoring units of a certain control section, when having and only having a fault logic G=1, the monitoring unit disjunction of corresponding G=1.
The application of this criterion depends on the cognition of monitoring unit to all adjacent monitoring units topology location of living in, and therefore, each monitoring unit in fact all has own unique address information and fault verification logical formula.
Monitoring unit radio receiving-transmitting unit when normality is in accepting state, can listen to the wireless signal (when signal) of the monitoring unit with common section at least, and in Fig. 1, monitoring unit F should be able to listen to the wireless signal of D, M monitoring unit at least.H, I are monitors, judge irrelevant with disjunction.
Suppose that the line power direction is for from a to e, when overcurrent fault takes place in section f, monitor I sends fault logic 1 by local 2.4GHz wireless signal to the local monitor unit F, treat the local monitor unit F by 470MHz～510MHz short-distance wireless when organizing D, M that regional network returns and confirm that the fault logic of monitoring unit M is 0 (not sending fault message), monitoring unit F judges faulty indication and carries out breaking operation that monitoring unit F is sent to host computer with fault message and control result by telecommunications such as GPRS/CDMA.The distribution line management software of host computer, abort situation and faulty equipment will shown also or on the LCD display on the figure of distribution line geographical position, on the track section equipment data figure, and send audio alarm, simultaneously information such as faulty equipment, position are sent to designated mobile phone.After fault was got rid of, host computer sends to close a floodgate ordered monitoring unit F, and monitor terminal control breaker closing restores electricity.
Concrete fault judgement and automatic control process are as follows:
Fault judgement:
The monitor terminal of monitoring unit by local wireless communication channel, with the comparison of adjacent node current data, is differentiated the fault scene with its fault message that records automatically, and its discrimination principles is as follows:
1, single radiation net
As shown in Figure 5, five node A, B, C, D, E, four section AB, BC, CD, DE
If the circuit rated current is I
N, the electric current that flows through when each node of circuit is less than I
NWhen (normal operating condition), represent, when greater than I with logical zero
NWhen (under the failure condition), logic is represented with " 1 ".
With section B C is example, and the logical relation of fault judgement is described
1) section B C internal fault, B=1, C=0 ∑ BC=1
2) section B C external fault, 1. B=1 then, C=1 ∑ BC=10
②B＝0，C＝0∑BC＝0
Promptly when electric power transmission network is single radiation net, monitor terminal should be simultaneously and the module of adjacent two nodes communicate, when the information unanimity of two nodes in this section, show that fault is not at this section, and during the information inconsistency of two nodes, show that fault occurs in this section.
2, multinode radiation net
As shown in Figure 6, six node A, B, C, D, E, F are example with section B CF:
∑ BCF=1 fault occurs in the section
Be that electric power transmission network is when being multinode radiation net, monitor terminal should be simultaneously communicates with the monitor terminal of adjacent two above nodes, when the information of three nodes in this section is consistent, shows that fault is not at this section, and during the information inconsistency of three nodes, show that fault occurs in this section.
3, time budget:
Monitor wakeup time: 5ms;
The A/D transition detection electric current preliminary treatment response time: 25ms;
Send data time: 2ms;
Monitoring unit internal conversion and transmission data time: 55ms;
Contiguous monitoring unit is analyzed data and is sent packet time: 55ms;
Complex network topologies increases time: 150ms;
Add up to response time＜300ms.
Claims (4)
1. a distribution line failure detects control system, comprises
Monitor (1) is arranged on the 10kV distribution line, is used to monitor the fault message of distribution line, and the fault message that monitors is sent to local low pressure monitoring unit immediately by the local radio communication mode;
Low pressure monitoring unit (2) comprises monitor terminal (21) and circuit breaker (22), is arranged on the basic routing line and important branch circuit of distribution line; Described monitor terminal (21) has unique address information, judge according to information and the fault message of self that contiguous low pressure monitor terminal sends whether needs control circuit breakers (22) are carried out breaking operation to this monitoring section, and fault message and circuit breaker execution result information are sent to host computer by the telecommunication mode;
Host computer (3), be used to receive the fault message that each monitor terminal sends, the section position that fault location takes place, and relevant information sent to the mobile phone of appointment by the short message communication mode, and after getting rid of line fault, the full-time staff sends the instruction that restores electricity to monitor terminal by the telecommunication mode.
2. distribution line failure according to claim 1 detects control system, it is characterized in that: described monitor is arranged between each phase line of user's branched line of distribution line or the two low pressure monitoring units on each phase line, and described monitor has unique address information.
3. distribution line failure according to claim 1 detects control system, and it is characterized in that: described monitor is the ring-type forceps type structure, directly is stuck on the distribution line.
4. distribution line failure according to claim 1 detects control system, it is characterized in that: described monitor (1) comprises current transformer (11), current signal pretreatment module (12), single-chip microcomputer wireless communication module (13) and power management module (15), described current transformer (11) is electrically connected with current signal pretreatment module (12), single-chip microcomputer wireless communication module (13) is electrically connected with current signal pretreatment module (12) and power management module (15) respectively, and described power management module (15) also is electrically connected with current signal pretreatment module (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020130098XU CN201656457U (en) | 2010-03-12 | 2010-03-12 | Distribution line troubleshooting control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020130098XU CN201656457U (en) | 2010-03-12 | 2010-03-12 | Distribution line troubleshooting control system |
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| Publication Number | Publication Date |
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| CN201656457U true CN201656457U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201020130098XU Expired - Lifetime CN201656457U (en) | 2010-03-12 | 2010-03-12 | Distribution line troubleshooting control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195274A (en) * | 2010-03-12 | 2011-09-21 | 深圳市银骏科技有限公司 | Distribution line fault detection control method and system |
| CN104977503A (en) * | 2015-06-23 | 2015-10-14 | 中山市木易万用仪器仪表有限公司 | Circuit breaking detector |
| CN114095392A (en) * | 2021-12-02 | 2022-02-25 | 深圳市光网视科技有限公司 | Communication power supply monitoring method and system based on Internet of things |
-
2010
- 2010-03-12 CN CN201020130098XU patent/CN201656457U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195274A (en) * | 2010-03-12 | 2011-09-21 | 深圳市银骏科技有限公司 | Distribution line fault detection control method and system |
| CN104977503A (en) * | 2015-06-23 | 2015-10-14 | 中山市木易万用仪器仪表有限公司 | Circuit breaking detector |
| CN114095392A (en) * | 2021-12-02 | 2022-02-25 | 深圳市光网视科技有限公司 | Communication power supply monitoring method and system based on Internet of things |
| CN114095392B (en) * | 2021-12-02 | 2022-04-08 | 深圳市光网视科技有限公司 | Communication power supply monitoring method and system based on Internet of things |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Distribution line troubleshooting control system Effective date of registration: 20180502 Granted publication date: 20101124 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: Shenzhen Yinjun Technology Co., Ltd. Registration number: 2018990000336 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 518053 Factory Building No. 1 (Huake) 6-C, North Overseas Chinese Town Road, Shahe Street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Guangdong Haoning Da Industrial Co., Ltd. Address before: 518053 Second Floor of High-tech Industrial Park Complex Building, North Ring Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Yinjun Technology Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
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| CX01 | Expiry of patent term |