CN113219305B - Automatic power distribution network fault early warning method and system based on event driving - Google Patents
Automatic power distribution network fault early warning method and system based on event driving Download PDFInfo
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Abstract
The disclosure provides a distribution network fault automatic early warning method and system based on event driving, wherein the method comprises the following steps: firstly, through monitoring the switching-on/off, protection action and reclosing action signals of an outlet switch accident of a transformer substation, the full-line fault is researched and judged, and the accurate positioning analysis of the sectional fault is realized according to the FA execution process data by combining the full-automatic FA action and the in-situ FA action condition of a distribution network; secondly, an automatic voice dialing technology and a short message communication technology are fully utilized to construct efficient communication channels of a power supply service command center and on-site rush repair teams and professional departments, so that automatic early warning notification of faults is realized; and finally, a plurality of information reporting channels such as a marketing system and an distribution network accident log are opened, so that automatic reporting of fault power failure information is realized, efficient coordination of distribution and allocation is supported, and the quick response capability under a fault state is improved.
Description
Technical Field
The invention relates to the field of operation management of power distribution networks, in particular to an event-driven power distribution network fault automatic early warning method and system.
Background
At present, the secondary monitoring technology of the power distribution network is mature gradually, a large number of monitoring devices are additionally arranged on the power distribution network by a power supply enterprise, reporting of abnormal alarms such as protection actions, equipment power failure and the like is achieved, and fault early warning is carried out in a manual monitoring and studying and judging mode. Along with the increasing complexity of the power distribution network structure and the gradual increase of the equipment quantity, when the power distribution network breaks down, the field equipment can report a large amount of alarm data, and the problems of signal leakage, inaccurate research and judgment, long time consumption and the like are very easy to occur by adopting a manual monitoring and summarizing and research and judgment mode.
Disclosure of Invention
In view of the above, the disclosure provides an automatic power distribution network fault early warning method based on event driving, which solves the problems that in the prior art, faults cannot be automatically early warned and early warning is not timely.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
according to a first aspect of the embodiment of the invention, a power distribution network fault automatic early warning method based on event driving is provided, and comprises the steps of judging a fault range of a power distribution network, wherein the fault range comprises a full line fault and/or a segmented line fault of the power distribution network; determining a fault power failure range according to the fault range of the power distribution network and based on a single line diagram; sending power distribution network fault early warning information according to the power outage range; and actively reporting fault power failure information according to the fault early warning information.
In one embodiment, the determining a full line fault of the power distribution network includes: according to the monitored switching-on and switching-off, protection action and reclosing action signals of the outlet switch accident of the transformer substation, performing full line fault research and judgment; the determining of the power distribution network segment fault comprises the following steps: and performing sectional fault judgment according to the full-automatic FA action and the in-situ FA action.
In one embodiment, according to the monitored signals of the opening and closing, the protection action and the reclosing action of the outlet switch accident of the transformer substation, the performing of the full line fault research and judgment includes: judging whether the power distribution network fails according to the reclosing coincidence state, and determining the reclosing coincidence state according to the following formula:
Y＝(A bh &&B kgfz &&C chz &&B kghz) &&D maxkg
wherein Y is a combined state, wherein A bh To protect the action signal, C chz Reclosing action signal B kgfz 、B kghz Respectively representing the states of the switch, including two states of opening and closing, D maxkg Indicating the last state signal of the switch,&&is a logical and relationship.
In one embodiment, the performing segment fault grinding of the in-situ FA action specifically includes:
judging the superposition state of the switch through a switching-off signal, a reclosing signal or a switching-on signal after interphase fault action; according to the switch superposition state, segment fault judgment is carried out; the reclosing states of the switch include a primary reclosing state and a secondary reclosing state.
In one embodiment, performing segment fault grinding based on the switch coincidence state includes: judging whether the primary superposition is successful, if so, stopping the in-situ FA research and judgment searching process, and not generating a segment fault event; if the primary overlapping is unsuccessful, a judgment is made that the secondary overlapping is successful.
In one embodiment, the one-time coincidence state calculation formula is:
Y 1 ＝(A xj &&B kgfz &&C chz1 &&B kghz )&&D maxkg
wherein Y is 1 Represents an in-situ primary coincidence state, wherein A xj Representing interphase fault action signal, C chz1 Representing a reclosing action signal, B kgfz 、B kghz A signal representing a switch state; d (D) maxkg Indicating the last action signal of the switch.
In one embodiment, the quadratic coincidence state calculation formula is:
Y 2 ＝(A xj &&B kgfz &&C chz1 &&B kghz &&C chz2) &&D maxkg
wherein Y is 2 In-situ secondary superposition state, C chz2 The secondary reclosing action signal is represented,&&as a logical AND relationship, when Y 2 If true, then it can be determined that the secondary reclosing was successful, indicating that the switch is operating properly. Otherwise, the secondary reclosing failure is judged, and the fact that the switch is disconnected is indicated at the moment, and a power failure event occurs at the downstream of the switch.
In one embodiment, a fault outage range is determined from a fault range of the power distribution network and based on a single line diagram: and the dispatching operator checks the fault studying and judging process and the result through a fault power failure event monitoring and confirming window, and confirms and adjusts the fault range through a single line diagram visual display and clicking operation mode.
In a second aspect of the embodiment of the invention, an automatic power distribution network fault early warning system based on event driving is provided, and the system comprises a fault judging module, a fault detecting module and a fault detecting module, wherein the fault judging module is configured to judge the fault range of a power distribution network, and the fault comprises a full line fault and/or a segmented line fault of the power distribution network; the power outage range determining module is configured to determine a fault power outage range according to a fault range of the power distribution network and based on a single line diagram; the early warning module is configured to send power distribution network fault early warning information according to the power outage range; and the sending module is configured to actively report the fault power failure information according to the fault early warning information.
In one embodiment, the intelligent substation fault detection system further comprises a fault monitoring module, wherein the fault monitoring module is configured to monitor fault opening and closing, protection action and reclosing action signals of a substation outlet switch, conduct full-line fault research and judgment, conduct segment fault research and judgment by combining full-automatic FA action and in-situ FA action of a distribution network, and achieve accurate positioning analysis of segment faults.
In a third aspect of an embodiment of the present invention, there is provided an electronic device including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method according to the first aspect of the embodiments of the invention when executing the program.
In a fourth aspect of embodiments of the present invention, there is provided a computer readable storage medium having stored thereon executable instructions that, when executed by a processor, cause the processor to perform the method according to the first aspect of embodiments of the present invention.
According to the distribution network fault automatic early warning method and system based on event driving, firstly, full line fault judgment is achieved by monitoring the switching-on and switching-off, protection action and reclosing action signals of the outlet switch accident of a transformer substation, and accurate positioning analysis of sectional faults is achieved according to the data of the FA executing process by combining the full-automatic FA action and the in-situ FA action condition of a distribution network; secondly, an automatic voice dialing technology and a short message communication technology are fully utilized to construct efficient communication channels of a power supply service command center and on-site rush repair teams and professional departments, so that automatic early warning notification of faults is realized; and finally, a plurality of information reporting channels such as a marketing system and an distribution network accident log are opened, so that automatic reporting of fault power failure information is realized, efficient coordination of distribution and allocation is supported, and the quick response capability under a fault state is improved.
Drawings
In order to more clearly illustrate the technical solutions involved in the embodiments of the present invention, the following description will briefly explain the embodiments of the present invention or the drawings needed in the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic flow chart of an automatic power distribution network fault early warning method based on event driving according to an embodiment of the present invention;
fig. 2 is a flow chart of a method for judging full line fault and judging segment fault according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an automatic power distribution network fault early warning system based on event driving according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an all-line fault studying and judging module and a segment fault studying and judging module according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved by the embodiments of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and the embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. It is apparent that the described embodiments of the invention are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular internal procedures, techniques, etc. in order to provide a thorough understanding of embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
As used in this disclosure, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
As used in this disclosure, the terms "means," "module," and the like are intended to refer to a computer-related entity, either hardware, software in execution, firmware, middleware, microcode, or any combination thereof. For example, a module may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, or a computer. One or more components may be stored within a process or thread of execution, and a module may be localized on one computer or distributed between two or more computers. In addition, these modules may be executed from a variety of computer-readable media having various data structures stored thereon. In addition, the modules of the systems described herein may be rearranged or complimented by additional components in order to facilitate achieving the various objects, advantages, etc., described with respect thereto, and are not limited to the precise configurations set forth in a given figure, as will be appreciated by those skilled in the art.
The embodiment of the disclosure provides a distribution network fault automatic early warning method and system based on event driving, wherein the method comprises the following steps: firstly, through monitoring the switching-on/off, protection action and reclosing action signals of an outlet switch accident of a transformer substation, the full-line fault is researched and judged, and the accurate positioning analysis of the sectional fault is realized according to the FA execution process data by combining the full-automatic FA action and the in-situ FA action condition of a distribution network; secondly, an automatic voice dialing technology and a short message communication technology are fully utilized to construct efficient communication channels of a power supply service command center and on-site rush repair teams and professional departments, so that automatic early warning notification of faults is realized; and finally, a plurality of information reporting channels such as a marketing system and an distribution network accident log are opened, so that automatic reporting of fault power failure information is realized, efficient coordination of distribution and allocation is supported, and the quick response capability under a fault state is improved. Embodiments of the present invention and their advantages will be described in detail below with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It may be evident, however, that the various aspects may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing these aspects.
As shown in fig. 1, a flow chart of an automatic power distribution network fault early warning method based on event driving according to an embodiment of the present invention includes:
s101, judging the fault range of the power distribution network.
Optionally, judging the fault range of the power distribution network comprises judging the whole line fault and/or the sectional line fault of the power distribution network;
the following will describe a method based on the full-line fault determination and the segment fault determination corresponding to fig. 2.
Optionally, the analyzing of the judging event for the whole line fault of the power distribution network comprises the following steps:
1) And (3) monitoring a switching-off signal of an outgoing line switch in the transformer substation in real time, eliminating repeated signals according to a tripping switch and tripping time, and eliminating normal overhaul signals through switch retrieval and listing operation records.
2) The research and judgment process waits for detecting whether the protection action of the outlet switch or the total accident signal of the transformer substation is triggered.
3) And if the switch protection action or the total signal of the transformer substation accident is not effectively triggered, stopping the fault studying and judging searching process.
4) And collecting reclosing action signals, switch closing signals or reclosing signals after superposition after triggering protection actions.
5) And calculating whether reclosing is successful or not according to the collected signals of the protection action, the switch opening and closing, the reclosing and the like. The calculation method is as formula (1):
Y＝(A bh &&B kgfz &&C chz &&B kghz) &&D maxkg (1)
wherein Y is a combined state, wherein A bh To protect the action signal, C chz Reclosing action signal B kgfz 、B kghz Respectively representing the states of the switch, including two states of opening and closing, D maxkg Indicating the last state signal of the switch,&&is a logical and relationship. If a protection action signal is received, overlapGate signal, then A bh 、C chz The value is set to true, otherwise the value is set to false; if the switch opening signal and the switch closing signal are received, B kgfz 、B kghz The value is set to true, otherwise the value is set to false; if the last state signal of the switch is on, D maxkg The value is set to true, otherwise the value is set to false; the value of Y is calculated according to the above formula. And when Y is true, judging that the reclosing of the switch is successful, and indicating that the outgoing line running state of the switch is normal. Otherwise, the reclosing is not finished or abnormal, and the switch outlet can be judged to have a power failure event.
6) And recording the reclosing action condition of the tripping event to form a complete full-line fault event record.
Optionally, the segment fault determination is performed by a fully automatic FA and/or an in-situ FA.
Optionally, the full-automatic FA research event analysis specifically includes:
1) On the basis of the research and judgment of the in-station switch tripping event, monitoring whether the full-automatic FA is started or not;
2) If the full-automatic FA research and judgment search process is not started normally, stopping the full-automatic FA research and judgment search process;
3) If the normal start is carried out, the whole process tracking FA processes fault analysis, fault positioning and fault isolation executing processes;
4) Generating a fault description E file after the fault isolation of the FA is successful;
5) And analyzing the fault description E file, recording the fault judging range of the FA, and generating a segmented line fault event record.
Optionally, the in-situ FA research event analysis specifically includes:
1) Monitoring a switch-off signal (interphase fault) of an off-site switch of the distribution automation station in real time;
2) Judging whether to select a line switch according to the type of the opening switch, if not, stopping the in-situ FA research and judgment searching process;
3) Collecting a switching-off signal, a reclosing signal or a switching-on signal after interphase fault action, judging the switch superposition state, and calculating the primary superposition state according to the formula (2):
Y 1 ＝(A xj &&B kgfz &&C chz1 &&B kghz) &&D maxkg (2)
wherein Y is 1 Represents an in-situ primary coincidence state, wherein A xj Representing interphase fault action signal, C chz1 Representing a reclosing action signal, B kgfz 、B kghz A signal representing a switch state; d (D) maxkg Indicating the last action signal of the switch. If a corresponding signal is received, A xj 、C chz1 、B kgfz 、B kghz The value of (1) is true, otherwise the value is false,&&is a logical and relationship. D (D) maxkg Indicating whether the last action signal is in a switch-on state, if so, the last action signal is true, otherwise, the last action signal is false. When Y is 1 If true, then it can be determined that the switch is successful in one-time reclosing, and this indicates that the line on which the switch is located is operating normally. If the primary overlapping fails, the judgment of the secondary overlapping condition needs to be continued.
The method of the secondary superposition success state is as formula (3):
Y 2 ＝(A xj &&B kgfz &&C chz1 &&B kghz &&C chz2) &&D maxkg (3)
wherein Y is 2 In-situ secondary coincidence state, C chz2 And the secondary reclosing action signal is represented. When Y is 2 If true, it can be determined that the secondary reclosing is successful, and the circuit where the switch is located is indicated to be operated normally. Otherwise, the secondary reclosing failure is judged, and the fact that the switch is opened and the power failure event occurs at the downstream of the switch is indicated.
4) Judging whether the primary superposition is successful, if so, stopping the in-situ FA research and judgment searching process, and not generating a segment fault event; if the primary overlapping step is successful, judging that the secondary overlapping step is successful;
5) If the secondary superposition is successful, the locking signal is obtained by analyzing the fault description E file, and the fault range is judged.
6) If the secondary coincidence is not successful, the fault between the line selection switch and the first section selection switch is judged.
7) And recording an in-situ FA research judging fault range, and generating a segmented line fault event record.
S102, determining a fault power failure range according to the fault range of the power distribution network and based on the single line diagram.
Optionally, by utilizing the construction results of marketing, allocation and dispatching, the visual display and operation technology based on the single line diagram is developed, a fault power failure event monitoring and confirming window is provided, dispatching operators check the fault research and judgment process and result, and the fault and adjustment range are rapidly confirmed through the visual display and selection operation mode of the single line diagram.
S103, sending power distribution network fault early warning information according to the power outage range;
optionally, after confirming that the power distribution network fails, the dispatching desk relies on a system integration channel, a short message channel and a telephone channel, and sends failure early warning information to all responsible personnel at first time, so that on-site personnel can quickly and accurately grasp failure details, quick and automatic notification for professional related personnel such as transformer substations, distribution transformers and marketing is realized, the problem that manual notification is not timely under the prior failure state is solved, and the failure handling progress is accelerated; the accident log for the dispatching desk is automatically generated, and the workload of the dispatching desk input is reduced; meanwhile, the system can be rapidly reported to a customer service center so as to facilitate customer report interception and reduce repeated report repair work orders.
S104, actively reporting fault power failure information according to the fault early warning information.
Optionally, for the manual processing links such as consulting accident signals, comprehensive study and judgment of fault power failure events, analysis of power failure range, accident log filling and report of fault distribution and power failure information filling and report of fault power failure event with long processing time in the process of reporting the fault power failure event, the active reporting of the structured power failure information is realized through the information flow transmission channels penetrating through OMS, PMS and marketing business application systems, the power failure information reporting efficiency is greatly improved, and the fault handling progress is accelerated.
The following description will be based on the related description in the embodiment of the event-driven power distribution network fault automatic early warning method corresponding to fig. 1. Technical terms, concepts and the like related to the above embodiments in the following embodiments may refer to the above embodiments, and are not repeated here.
As shown in fig. 3, a schematic structural diagram of an automatic power distribution network fault early warning system based on event driving according to an embodiment of the present invention is provided, where the apparatus 200 includes:
the fault determination module 201 is configured to determine a fault range of the power distribution network, where the fault includes a full line fault and/or a segment line fault of the power distribution network.
The fault monitoring module 202 is configured to monitor the fault opening and closing, protection action and reclosing action signals of the outlet switch of the transformer substation, perform full-line fault research and judgment, and perform segment fault research and judgment according to the FA execution process data by combining the full-automatic FA action and the in-situ FA action condition of the distribution network, so as to realize the accurate positioning analysis of segment faults.
The outage scope determination module 203 is configured to determine a outage scope of the fault according to the outage scope of the power distribution network and based on the single line diagram.
The early warning module 204 is configured to send power distribution network fault early warning information according to the power outage scope.
And the sending module 205 is configured to actively report fault outage information according to the fault early warning information.
As shown in fig. 4, the block diagrams of the full line fault studying and judging module and the segment fault studying and judging module according to the embodiment of the present invention are shown.
Optionally, the full line fault research and judgment is realized by a full line fault research and judgment module, and the full line fault research and judgment module comprises an off-gate monitoring module of the switch inside and outside the station, a protection action module and a switch deflection combination module.
Optionally, the segment fault judging function is realized by a full-automatic FA judging module and/or an in-situ FA judging module, wherein the full-automatic FA judging module comprises a full-automatic FA starting monitoring module, a full-automatic FA fault analyzing and isolating module and a full-automatic FA fault description E file generating module; the in-situ FA research and judgment module comprises an in-site and out-site line selection switch opening signal monitoring module, a switch deflection combination module and an in-situ FA fault analysis module.
As shown in fig. 5, which is a schematic structural diagram of an electronic device according to an embodiment of the present invention, the electronic device 500 includes a Central Processing Unit (CPU) 501, which may perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) 502 or a program loaded from a storage section 508 into a Random Access Memory (RAM) 503. In the RAM 503, various programs and data required for the operation of the electronic apparatus 500 are also stored. The CPU 501, ROM 502, and RAM 503 are connected to each other through a bus 504. An input/output (I/O) interface 505 is also connected to bus 504.
The following components are connected to the I/O interface 505: an input section 506 including a keyboard, a mouse, and the like; an output portion 507 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker, and the like; a storage portion 508 including a hard disk and the like; and a communication section 509 including a network interface card such as a LAN card, a modem, or the like. The communication section 509 performs communication processing via a network such as the internet. The drive 510 is also connected to the I/O interface 505 as needed. A removable medium 511 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 510 as needed so that a computer program read therefrom is mounted into the storage section 508 as needed.
Embodiments of the present invention provide a computer storage medium comprising computer instructions which, when run on a computer, cause the computer to perform the method flow as described above. By way of example, a computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device, such as a server, data center, or the like, that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.
From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be performed by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to perform all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.
In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.
The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (english: processor) to perform some of the steps of the methods according to the embodiments of the invention. And the aforementioned storage medium includes: u disk, mobile hard disk, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (9)
1. An automatic power distribution network fault early warning method based on event driving, comprising the following steps:
determining a fault range of the power distribution network, wherein the fault range comprises a full line fault and/or a segmented line fault of the power distribution network;
determining a fault power failure range according to the fault range of the power distribution network and based on a single line diagram;
sending power distribution network fault early warning information according to the power outage range;
actively reporting fault power failure information according to the fault early warning information;
the method comprises the steps of judging the fault range of the power distribution network, namely judging the full line fault of the power distribution network and judging the sectional fault of the power distribution network; the determining of the full line fault of the power distribution network comprises the following steps: according to the monitored switching-on and switching-off, protection action and reclosing action signals of the outlet switch accident of the transformer substation, performing full line fault research and judgment;
the step of performing full line fault research and judgment according to the monitored signals of the opening and closing, the protection action and the reclosing action of the outlet switch accident of the transformer substation comprises the following steps: judging whether the power distribution network has faults according to the reclosing superposition state;
the reclosing state is specifically determined by the formula (1):
Y＝(A bh &&B kgfz &&C chz &&B kghz )&&D maxkg (1)
wherein Y is a combined state, wherein A bh To protect the action signal, C chz Reclosing action signal B kgfz 、B kghz Respectively representing the states of the switch, including two states of opening and closing, D maxkg Indicating the last state signal of the switch,&&is a logical AND relationship; if A bh 、C chz 、B kgfz 、B kghz Receiving the corresponding signal, then A bh 、C chz 、B kgfz 、B kghz The value is set to true, otherwise the value is set to false; if D maxkg Indicating that the last state signal of the switch is on, D maxkg The value is set to true, otherwise the value is set to false;
if the full line fault is found, the segment fault judgment is carried out.
2. The method of claim 1, wherein the determining a power distribution network segment failure comprises: and performing segment fault judgment according to the full-automatic FA action and/or the in-situ FA action.
3. The method of claim 2, wherein the performing segment fault determination by the in-situ FA action specifically comprises:
judging the superposition state of the switch through a switching-off signal, a reclosing signal or a switching-on signal after interphase fault action;
according to the switch superposition state, segment fault judgment is carried out;
the reclosing states of the switch comprise a primary reclosing state and a secondary reclosing state.
4. The method of claim 3, wherein the performing a segment fault determination based on the switch coincidence state comprises:
judging whether the primary superposition is successful, if so, stopping the in-situ FA research and judgment searching process, and not generating a segment fault event; if the primary overlapping is unsuccessful, judging whether the secondary overlapping is successful.
5. The method of claim 4, wherein the one-time coincidence state calculating method is formula (2):
Y 1 ＝(A xj &&B kgfz &&C chz1 &&B kghz )&&D maxkg (2)
wherein Y is 1 Represents an in-situ primary coincidence state, wherein A xj Representing interphase fault action signal, C chz1 Representing a reclosing action signal, B kgfz 、B kghz A signal representing a switch state; d (D) maxkg A last action signal of the switch is represented; if A xj 、C chz1 、B kgfz 、B kghz Receiving the corresponding signal, then A xj 、C chz1 、B kgfz 、B kghz The value of (1) is true, otherwise the value is false; d (D) maxkg Indicating whether the last action signal is in a switch-on state, if so, the last action signal is true, otherwise, the last action signal is false;
the secondary superposition state calculating method is as shown in formula (3):
Y 2 ＝(A xj &&B kgfz &&C chz1 &&B kghz &&C chz2 )&&D maxkg (3)
wherein Y is 2 In-situ secondary coincidence state, C chz2 The secondary reclosing action signal is represented,&&is a logical AND relationship; if A xj 、C chz1 、B kgfz 、B kghz 、C chz2 Receiving the corresponding signal, then A xj 、C chz1 、B kgfz 、B kghz 、C chz2 And the value of true, otherwise the value is false.
6. The method of claim 5, wherein the fault outage scope is determined from a fault scope of the distribution network and based on a single line graph: and the dispatching operator checks the fault studying and judging process and the result through a fault power failure event monitoring and confirming window, and confirms and adjusts the fault range through a single line diagram visual display and clicking operation mode.
7. An event driven based power distribution network fault automation early warning system, the system comprising:
a fault determination module configured to determine a fault range of the power distribution network, the fault including a full line fault and/or a segmented line fault of the power distribution network;
the power outage range determining module is configured to determine a fault power outage range according to a fault range of the power distribution network and based on a single line diagram;
the early warning module is configured to send power distribution network fault early warning information according to the power outage range;
the sending module is configured to actively report fault power failure information according to the fault early warning information;
the fault judging module comprises a full line fault judging module and a segment fault judging module;
the full-line fault judging module comprises an off-switch monitoring module, a protection action module and a switch deflection combination module for the off-switch of the transformer substation, and carries out full-line fault judging according to the monitored signals of the off-switch, the protection action and the reclosing action; the step of performing full line fault research and judgment according to the monitored signals of the opening and closing, the protection action and the reclosing action of the outlet switch accident of the transformer substation comprises the following steps: judging whether the power distribution network has faults according to the reclosing superposition state;
the reclosing state is specifically determined by the formula (1):
Y＝(A bh &&B kgfz &&C chz &&B kghz )&&D maxkg (1)
wherein Y is a combined state, wherein A bh To protect the action signal, C chz Reclosing action signal B kgfz 、B kghz Respectively represent the states of the switch, including opening and closingSeed state, D maxkg Indicating the last state signal of the switch,&&is a logical AND relationship; if A bh 、C chz 、B kgfz 、B kghz Receiving the corresponding signal, then A bh 、C chz 、B kgfz 、B kghz The value is set to true, otherwise the value is set to false; if D maxkg Indicating that the last state signal of the switch is on, D maxkg The value is set to true, otherwise the value is set to false;
if the full line fault is found, the segment fault judgment is carried out.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1 to 6 when the computer program is executed.
9. A non-transitory computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 1 to 6.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277851A (en) * | 2015-10-16 | 2016-01-27 | 国网甘肃省电力公司天水供电公司 | Distribution network fault judgment searching and positioning system |
| CN106374624A (en) * | 2016-09-30 | 2017-02-01 | 国网江苏省电力公司扬州供电公司 | Local distributed feeder automation-based intelligent research and expert warning system and working method thereof |
| CN110146787A (en) * | 2019-06-14 | 2019-08-20 | 国网江苏省电力有限公司常州供电分公司 | Electrical power distribution network fault location method based on multi-source monitoring data |
-
2021
- 2021-05-21 CN CN202110557514.7A patent/CN113219305B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277851A (en) * | 2015-10-16 | 2016-01-27 | 国网甘肃省电力公司天水供电公司 | Distribution network fault judgment searching and positioning system |
| CN106374624A (en) * | 2016-09-30 | 2017-02-01 | 国网江苏省电力公司扬州供电公司 | Local distributed feeder automation-based intelligent research and expert warning system and working method thereof |
| CN110146787A (en) * | 2019-06-14 | 2019-08-20 | 国网江苏省电力有限公司常州供电分公司 | Electrical power distribution network fault location method based on multi-source monitoring data |
Non-Patent Citations (5)
| Title |
|---|
| 基于多源信息的配电网故障研判方法;邱灿树;《农村电气化》;20180831(第8期);第53-57页 * |
| 基于多维度数据分析的配网故障研判系统设计及应用;俞鹏 等;《自动化与仪器仪表》;20171231(第12期);第92-94、97页 * |
| 多端发起、协同参与的配电网故障研判方法与应用;张轶君等;《机电信息》;20160925(第27期);第14、15页 * |
| 智能民用配电自动化系统;王永勤 等;《农村电气化》;20180831(第8期);第1-4节 * |
| 调度自动化智能告警规则完整性讨论;黄国政 等;《中国高新技术企业》(第02期);第1-4节 * |
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