CN110221183A - Distribution Network Failure method for early warning and system towards non-power distribution automation overlay area - Google Patents
Distribution Network Failure method for early warning and system towards non-power distribution automation overlay area Download PDFInfo
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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Abstract
The invention discloses a kind of Distribution Network Failure method for early warning and system towards non-power distribution automation overlay area, this method comprises: from rack information of power distribution network in region is obtained in dispatch automated system D5000 and management information system of power-consuming；Predicted branches lineation opinion load current and prediction power supply point theory load current；The real-time load electric current of branch line and branch line theory load current are made the difference, power supply point real-time load electric current and power supply point theory load current are made the difference, and above-mentioned difference is judged that tripping fault occurs for respective branches line or power supply point if difference exceeds threshold value with corresponding threshold value comparison respectively.Distribution Network Failure method for early warning and system provided by the invention towards non-power distribution automation overlay area, utilize the distribution transforming information in existing dispatch automated system D5000 and power information acquisition system, judge the switch trip failure of power distribution network in time and positioned and alerted, the resultant force for realizing resource utilizes and integration.
Description
Technical field
The present invention relates to Distribution Network Failure early warning technology fields, more particularly to one kind towards non-power distribution automation overlay area
Distribution Network Failure method for early warning and system.
Background technique
With the continuous development of distribution network transform, 20/10kV distribution line equipment dependability is greatly reinforced, and especially 20/
The operational reliability of 10kV distribution main line is greatly improved, but the routing of distribution partial line is old in user equipment, type selecting is poor,
Safeguard that the factors such as ineffective, operational reliability are lower.Therefore, it is distribution line fault trip that user equipment failure, which causes line tripping,
The main reason for.After line fault tripping, isolated fault branch line segment, restoring the power supply of non-fault line section is the task of top priority.
When not finding obvious fault reason, generallys use the method sent of segmentation examination and determine which part of path is failure be located at, then by
One investigation, investigation efficiency are very low.
Power distribution network power supply mode is mostly to be switched using load current by line sectionalizing, can both accomplish segmentation maintenance in this way,
Tripping can be segmented in failure again, avoids completely having a power failure.Electrical power distribution automatization system is generallyd use at present, realizes route event
Positioning, the isolation for hindering section, restore electricity to non-fault line, can reduce fault outage range, when reducing the power failure to user
Between, improve power supply reliability.But some areas power distribution automation degree is still lower, and the online rate of distribution power automation terminal is low,
Data reliability is poor, is unable to reach the requirement that dispatcher judges rapidly handling failure, often distribution after distribution line switch trip
Dispatcher can not grasp in time, cause difficulty to Fault Isolation and reparation.If using electrical power distribution automatization system to distribution net equipment
It is all monitored, needs many distribution terminal or M locale intelligent device, the number of terminal nodes of an electrical power distribution automatization system
Amount is quite big, does so investment greatly, and the construction period is long, time-consuming, increases Distribution Network Failure early warning cost.
Summary of the invention
The object of the present invention is to provide a kind of Distribution Network Failure method for early warning towards non-power distribution automation overlay area and it is
System, in the case where not increasing distribution secondary terminals hardware investment, utilizes existing dispatch automated system D5000 and electricity consumption
Distribution transforming information in information acquisition system judges the switch trip failure of power distribution network and is positioned and alerted, realizes in time
The resultant force of resource utilizes and integration, reduces the Distribution Network Failure early warning cost of non-power distribution automation overlay area.
To achieve the above object, the present invention provides following schemes:
A kind of Distribution Network Failure method for early warning towards non-power distribution automation overlay area, comprising the following steps:
S1) from dispatch automated system D5000 and management information system of power-consuming obtain region in rack of power distribution network
Information；
S2) according to rack information of power distribution network, branch line information and power supply point information are generated, and in rack change into
Row data update, and the branch line information includes the real-time load current information and historical load current information of branch line, described
Power supply point information includes the real-time load current information and historical load current information of power supply point；
S3) according to the historical load current information of branch line, predicted branches lineation opinion load current, according to going through for power supply point
History load current information predicts power supply point theory load current；
S4) the real-time load electric current of branch line and branch line theory load current are made the difference, obtain the first difference, by first
Difference is compared with the first given threshold, if the first difference exceeds the first given threshold, judges that tripping fault occurs for the branch line；
Power supply point real-time load electric current and power supply point theory load current are made the difference, obtain the second difference, the second difference is set with second
Determine threshold value comparison, if the second difference exceeds the second given threshold, judges that tripping fault occurs for the power supply point；
S5) according to the GIS topology information of power distribution network in region, the position of branch line or power supply point that tripping fault occurs is obtained
Confidence breath, and carry out event log, push away figure and phonic warning.
Optionally, it is described from dispatch automated system D5000 and management information system of power-consuming obtain region in power distribution network
Rack information, specifically includes: the active and reactive of power supply point, electric current, voltage are obtained from dispatch automated system D5000
Information obtains the active and reactive of branch line, electric current, information of voltage from power information acquisition system, constitutes the primary net of power distribution network
Frame information.
Optionally, the historical load current information according to branch line, predicted branches lineation opinion load current, according to electricity
The historical load current information of source point is predicted power supply point theory load current, is specifically included: in predicted branches lineation opinion load electricity
Stream with before power supply point theory load current, believe by the historical load electric current of historical load current information and power supply point to branch line
Breath carries out anomaly data detection and rejecting.
The present invention also provides a kind of Distribution Network Failure early warning systems towards non-power distribution automation overlay area, are applied to upper
The Distribution Network Failure method for early warning towards non-power distribution automation overlay area stated, comprising:
Data acquisition interface module, for being communicated to connect with dispatch automated system D5000 and management information system of power-consuming,
Obtain rack information of power distribution network in region；
Topography module, for generating branch line information and power supply point information according to rack information of power distribution network, and in net
Frame is updated when changing, and the branch line information includes the real-time load current information and historical load electric current letter of branch line
Breath, the power supply point information includes the real-time load current information and historical load current information of power supply point；
Load current prediction module, for the historical load current information according to branch line, predicted branches lineation opinion load
Electric current predicts power supply point theory load current according to the historical load current information of power supply point；
Breakdown judge module is obtained for making the difference the real-time load electric current of branch line and branch line theory load current
First difference, if the first difference exceeds the first given threshold, judges the branch by the first difference compared with the first given threshold
Tripping fault occurs for line；Power supply point real-time load electric current and power supply point theory load current are made the difference, obtain the second difference, by
Two differences are compared with the second given threshold, if the second difference exceeds the second given threshold, judge that tripping event occurs for the power supply point
Barrier；
Fault warning module obtains the branch that tripping fault occurs for the GIS topology information according to power distribution network in region
The location information of line or power supply point, and carry out event log, push away figure and phonic warning.
Optionally, the breakdown judge module includes difference calculating module and comparative analysis module, and the difference calculates mould
Block obtains the first difference, by power supply point reality for making the difference the real-time load electric current of branch line and branch line theory load current
When load current made the difference with power supply point theory load current, obtain the second difference；The comparative analysis module, for poor by first
Value is compared with the first given threshold, if the first difference exceeds the first given threshold, judges that tripping fault occurs for the branch line, will
Second difference, if the second difference exceeds the second given threshold, judges that the power supply point trips compared with the second given threshold
Failure.
The specific embodiment provided according to the present invention, the invention discloses following technical effects: it is provided by the invention towards
The Distribution Network Failure method for early warning and system of non-power distribution automation overlay area, in the feelings for not increasing distribution secondary terminals hardware investment
Under condition, comprehensively utilize distribution transforming information topology in existing dispatch automated system D5000 and power information acquisition system and
Distribution transforming information realizes that distribution big data fault pre-alarming and positioning are effectively reduced into while ensureing malfunction monitoring effect
This；And the algorithm for establishing branch line and the judgement of power supply point tripping fault can find faulty line in time, and realize and determine
Position, facilitates schedule workers to grasp distribution fault in time, provides reliable basis for maintenance decision, to realize that non-distribution is automatic
Change overlay area Distribution Network Failure it is quick, be effectively treated.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is Distribution Network Failure method for early warning flow chart of the embodiment of the present invention towards non-power distribution automation overlay area；
Fig. 2 is the structural representation of Distribution Network Failure early warning system of the embodiment of the present invention towards non-power distribution automation overlay area
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of Distribution Network Failure method for early warning towards non-power distribution automation overlay area and it is
System, in the case where not increasing distribution secondary terminals hardware investment, utilizes existing dispatch automated system D5000 and electricity consumption
Distribution transforming information in information acquisition system judges the switch trip failure of power distribution network and is positioned and alerted, realizes in time
The resultant force of resource utilizes and integration, reduces the Distribution Network Failure early warning cost of non-power distribution automation overlay area.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is Distribution Network Failure method for early warning flow chart of the embodiment of the present invention towards non-power distribution automation overlay area, such as
Shown in Fig. 1, the Distribution Network Failure method for early warning provided in an embodiment of the present invention towards non-power distribution automation overlay area, including it is following
Step:
S1) from dispatch automated system D5000 and management information system of power-consuming obtain region in rack of power distribution network
Information；
S2) according to rack information of power distribution network, branch line information and power supply point information are generated, and in rack change into
Row data update, and the branch line information includes the real-time load current information and historical load current information of branch line, described
Power supply point information includes the real-time load current information and historical load current information of power supply point；
S3) according to the historical load current information of branch line, predicted branches lineation opinion load current, according to going through for power supply point
History load current information predicts power supply point theory load current；
S4) the real-time load electric current of branch line and branch line theory load current are made the difference, obtain the first difference, by first
Difference is compared with the first given threshold, if the first difference exceeds the first given threshold, judges that tripping fault occurs for the branch line；
Power supply point real-time load electric current and power supply point theory load current are made the difference, obtain the second difference, the second difference is set with second
Determine threshold value comparison, if the second difference exceeds the second given threshold, judges that tripping fault occurs for the power supply point；
S5) according to the GIS topology information of power distribution network in region, the position of branch line or power supply point that tripping fault occurs is obtained
Confidence breath, and carry out event log, push away figure and phonic warning.
Wherein, described to be obtained in region from dispatch automated system D5000 and management information system of power-consuming in step S1
Rack information of power distribution network, specifically includes: the active and reactive, electric of power supply point is obtained from dispatch automated system D5000
Stream, information of voltage obtain the active and reactive of branch line, electric current, information of voltage from power information acquisition system, constitute distribution
Rack information of net.The power supply point includes the power supply point of main supply point and each branch line.
In step s3, according to the historical load current information of branch line, predicted branches lineation opinion load current, according to electricity
The historical load current information of source point predicts power supply point theory load current, for carry out the historical data of load prediction due to
Failure or other reasons, in fact it could happen that abnormal data, therefore first to historical data progress anomaly data detection and after rejecting
It is predicted again.
Fig. 2 is the structural representation of Distribution Network Failure early warning system of the embodiment of the present invention towards non-power distribution automation overlay area
Figure, as shown in Fig. 2, the Distribution Network Failure early warning system provided in an embodiment of the present invention towards non-power distribution automation overlay area, is answered
For the above-mentioned Distribution Network Failure method for early warning towards non-power distribution automation overlay area, comprising:
Data acquisition interface module, for being communicated to connect with dispatch automated system D5000 and management information system of power-consuming,
Obtain rack information of power distribution network in region；
Topography module, for generating branch line information and power supply point information according to rack information of power distribution network, and in net
Frame is updated when changing, and the branch line information includes the real-time load current information and historical load electric current letter of branch line
Breath, the power supply point information includes the real-time load current information and historical load current information of power supply point；
Load current prediction module, for the historical load current information according to branch line, predicted branches lineation opinion load
Electric current predicts power supply point theory load current according to the historical load current information of power supply point；
Breakdown judge module is obtained for making the difference the real-time load electric current of branch line and branch line theory load current
First difference, if the first difference exceeds the first given threshold, judges the branch by the first difference compared with the first given threshold
Tripping fault occurs for line；Power supply point real-time load electric current and power supply point theory load current are made the difference, obtain the second difference, by
Two differences are compared with the second given threshold, if the second difference exceeds the second given threshold, judge that tripping event occurs for the power supply point
Barrier；
Fault warning module obtains the branch that tripping fault occurs for the GIS topology information according to power distribution network in region
The location information of line or power supply point, and carry out event log, push away figure and phonic warning.
The breakdown judge module includes difference calculating module and comparative analysis module, and the difference calculating module is used for will
The real-time load electric current of branch line makes the difference with branch line theory load current, obtains the first difference, by power supply point real-time load electricity
Stream makes the difference with power supply point theory load current, obtains the second difference；The comparative analysis module is used for the first difference and first
Given threshold compares, if the first difference exceeds the first given threshold, judges that tripping fault occurs for the branch line, by the second difference
Compared with the second given threshold, if the second difference exceeds the second given threshold, judge that tripping fault occurs for the power supply point.
By taking 10kV/20kV distribution line as an example, the outlet 10kV/20kV can be obtained from dispatch automated system D5000
Real time datas and the historical datas such as the switch state of breaker, active and reactive, electric current, voltage, outlet breaker tripping；From battalion
The non real time informations such as the active and reactive of platform area, electric current, voltage are obtained in the power information acquisition system of pin, are in the application
Distribution Network Failure early warning system provides reliable foundation.
Distribution Network Failure method for early warning and system provided by the invention towards non-power distribution automation overlay area, is not increasing
In the case where distribution secondary terminals hardware investment, comprehensively utilizes existing dispatch automated system D5000 and power information is adopted
Distribution transforming information topology and distribution transforming information in collecting system realize distribution big data fault pre-alarming and positioning, are ensureing malfunction monitoring
While effect, cost is effectively reduced；And the algorithm for establishing branch line and the judgement of power supply point tripping fault, can be timely
It was found that faulty line, and realize positioning, schedule workers facilitated to grasp distribution fault in time, for maintenance decision provide reliably according to
According to, thus realize the Distribution Network Failure of non-power distribution automation overlay area it is quick, be effectively treated.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (5)
1. a kind of Distribution Network Failure method for early warning towards non-power distribution automation overlay area, which comprises the following steps:
S1) from dispatch automated system D5000 and management information system of power-consuming obtain region in rack information of power distribution network；
S2) according to rack information of power distribution network, branch line information and power supply point information are generated, and is counted in rack change
According to update, the branch line information includes the real-time load current information and historical load current information of branch line, the power supply
Point information includes the real-time load current information and historical load current information of power supply point；
S3) according to the historical load current information of branch line, predicted branches lineation opinion load current is negative according to the history of power supply point
Charged stream information predicts power supply point theory load current；
S4) the real-time load electric current of branch line and branch line theory load current are made the difference, obtain the first difference, by the first difference
Compared with the first given threshold, if the first difference exceeds the first given threshold, judge that tripping fault occurs for the branch line；It will be electric
Source point real-time load electric current makes the difference with power supply point theory load current, obtains the second difference, by the second difference and the second setting threshold
Value compares, if the second difference exceeds the second given threshold, judges that tripping fault occurs for the power supply point；
S5) according to the GIS topology information of power distribution network in region, the position letter of branch line or power supply point that tripping fault occurs is obtained
Breath, and carry out event log, push away figure and phonic warning.
2. the Distribution Network Failure method for early warning according to claim 1 towards non-power distribution automation overlay area, feature exist
In, it is described from dispatch automated system D5000 and management information system of power-consuming obtain region in rack information of power distribution network,
It specifically includes: obtaining the active and reactive of power supply point, electric current, information of voltage from dispatch automated system D5000, from telecommunications
It ceases and obtains the active and reactive of branch line, electric current, information of voltage in acquisition system, constitute rack information of power distribution network.
3. the Distribution Network Failure method for early warning according to claim 1 towards non-power distribution automation overlay area, feature exist
In the historical load current information according to branch line, predicted branches lineation opinion load current is born according to the history of power supply point
Charged stream information is predicted power supply point theory load current, is specifically included: managing in predicted branches lineation opinion load current and power supply point
Before load current, the historical load current information of historical load current information and power supply point to branch line carries out abnormal number
According to detection and reject.
4. a kind of Distribution Network Failure early warning system towards non-power distribution automation overlay area is applied to any institute of claim 1-3
The Distribution Network Failure method for early warning towards non-power distribution automation overlay area stated characterized by comprising
Data acquisition interface module is obtained for communicating to connect with dispatch automated system D5000 and management information system of power-consuming
Rack information of power distribution network in region；
Topography module for generating branch line information and power supply point information according to rack information of power distribution network, and becomes in rack
It is updated when more, the branch line information includes the real-time load current information and historical load current information of branch line, institute
State the real-time load current information and historical load current information that power supply point information includes power supply point；
Load current prediction module, for the historical load current information according to branch line, predicted branches lineation opinion load current,
According to the historical load current information of power supply point, power supply point theory load current is predicted；
Breakdown judge module obtains first for making the difference the real-time load electric current of branch line and branch line theory load current
Difference, if the first difference exceeds the first given threshold, judges that the branch line is sent out by the first difference compared with the first given threshold
Raw tripping fault；Power supply point real-time load electric current and power supply point theory load current are made the difference, obtain the second difference, it is poor by second
Value is compared with the second given threshold, if the second difference exceeds the second given threshold, judges that tripping fault occurs for the power supply point；
Fault warning module, for the GIS topology information according to power distribution network in region, obtain the branch line that tripping fault occurs or
The location information of power supply point, and carry out event log, push away figure and phonic warning.
5. the Distribution Network Failure early warning system according to claim 4 towards non-power distribution automation overlay area, feature exist
In the breakdown judge module includes difference calculating module and comparative analysis module, and the difference calculating module is used for branch
The real-time load electric current of line makes the difference with branch line theory load current, obtains the first difference, by power supply point real-time load electric current with
Power supply point theory load current makes the difference, and obtains the second difference；The comparative analysis module, for setting the first difference with first
Threshold value comparison judges that tripping fault occurs for the branch line if the first difference exceeds the first given threshold, by the second difference and the
Two given thresholds compare, if the second difference exceeds the second given threshold, judge that tripping fault occurs for the power supply point.
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| CN112200345A (en) * | 2020-08-28 | 2021-01-08 | 国网青海省电力公司西宁供电公司 | Method for tracking module of power grid power supply point |
| CN112398227A (en) * | 2020-11-16 | 2021-02-23 | 国网辽宁省电力有限公司辽阳供电公司 | Automatic alarm method for transformer load rate based on D5000 power grid dispatching system |
| CN113484689A (en) * | 2021-07-22 | 2021-10-08 | 云南电网有限责任公司昆明供电局 | Distribution network fault studying and judging method and system based on feeder line current sudden reduction degree and switch load ratio probability density |
| CN113783179A (en) * | 2020-06-09 | 2021-12-10 | 北京映翰通网络技术股份有限公司 | Power grid load prediction and optimization method |
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