CN104882959A - Power distribution network area management method and system - Google Patents
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Abstract
The invention provides a power distribution network area management method and a system. The method comprises the steps of acquiring data information of all power distribution terminals in a control area, wherein the control area is an area having one or more feed lines in a power distribution network; determining the running state of the power distribution network according to data information; continuing monitoring the running state of the power distribution network if the running is normal; or sending corresponding control commands to corresponding power distribution terminals in case of faults to position and isolate faulty areas and resume power supplies to areas with no faults. The power distribution network area management method and system which can detect faults in a timely manner, rapidly process faults and resume normal running of the power distribution network are flexible and reliable. The problems that interactive information among power distribution terminals is limited; consequently power supply resumption in areas without faults is inflexible and the fault processing takes a long time are thus solved.
Description
Technical field
The present invention relates to technical field of power systems, more particularly, relate to a kind of power distribution network area management method and system.
Background technology
Distribution Automation Technology is the important technology of serving town and country distribution network transform construction.Distribution Automation Technology is based upon on the basis of information technology; distribution system online data and off-line data, power distribution network data and user data, electric network composition and geographical graphic are carried out information integerated; form complete automated system, realize power distribution network and equipment normally runs and monitoring under accident condition, protection, control and electricity consumption and distribution management automatic technology.
FEEDER AUTOMATION is as the pith of Distribution Automation Technology, refer to the feeder line automation between transformer station's outlet to user power utilization equipment, its content mainly comprises two aspects: one is that feeder line controls and data detection system, can realize the control to the collection running the electrical parameter various electricity of built-in unit (comprise feedback), supervision and equipment state in normal state; Two is feeder line automatism isolation and recovery system, when feeder line generation phase fault or single phase ground fault, automatically locates feeder fault region, isolated fault region and recovers the power supply in non-faulting region.
Existing feed line automatization system is mostly distributed feed line automatization system, the collection of power distribution network operation information and supervising of running status is carried out by Intelligent power distribution terminal, and when power distribution network breaks down, by the information interaction between Intelligent power distribution terminal, complete the service restoration in the location of fault zone, isolation and non-faulting region.But due to Limited information that can be mutual between distribution terminal, therefore, distributed feed line automatization system lacks flexibility in recovery non-faulting block supply, and the time of troubleshooting is longer, is unfavorable for the normal operation of power distribution network.
Summary of the invention
In view of this, the invention provides a kind of power distribution network area management method and system, in recovery non-faulting block supply, lack flexibility to solve distributed feed line automatization system in prior art, and the problem that the time of troubleshooting is longer.
For achieving the above object, the invention provides following technical scheme:
A kind of power distribution network area management method, comprising:
Gather the data message of all distribution terminals in control area, described control area is the region comprising one or more feeder line in power distribution network;
The running status of power distribution network is judged according to described data message, if normal operation, then continue the running status monitoring power distribution network, if there is fault, then send corresponding control command to corresponding distribution terminal, carry out the recovery of the location of fault zone, isolation and non-faulting block supply.
Preferably, described control area divides in advance according to the topological structure of power distribution network.
Preferably, the data message of described distribution terminal refers to and the power distribution network operational factor that distribution terminal gathers comprises the running status of voltage magnitude, electric current, active power, reactive power, power factor and switchgear.
Preferably, send corresponding control command to corresponding distribution terminal, carry out the location of fault zone, the process of recovery of isolation and non-faulting block supply is specially:
According to the region wire topology information of the data message collected and power distribution network, determine location of fault region;
Send the distribution terminal that the first control command is corresponding to described fault zone, the switch utilizing described distribution terminal to control both sides, fault zone disconnects, and isolates described fault zone;
Send the second control command to other distribution terminals in region, the switch utilizing other distribution terminals to control non-faulting region corresponding closes, and recovers the power supply in non-faulting region.
Preferably, also comprise:
The data message collected is sent to main website, and receives the control command of main website transmission, to realize the data interaction with main website.
A kind of power distribution network Regional Management System, is arranged in the control area divided in advance according to the topological structure of power distribution network, comprises:
Collecting unit, for gathering the data message of all distribution terminals in control area;
Judging unit, for judging the running status of power distribution network according to the data message collected;
Control unit, for when power distribution network breaks down, sends corresponding control command to corresponding distribution terminal, carries out the recovery of the location of fault zone, isolation and non-faulting block supply.
Preferably, described system also comprises:
Memory cell, for the data message of distribution terminals all in the control area that storage of collected arrives.
Preferably, described system also comprises:
Power subsystem, for providing power supply for described power distribution network Regional Management System.
Preferably, described system also comprises:
Communication unit, for the data message collected is sent to main website, and receives the control command of main website transmission, to realize the data interaction with main website.
Preferably, described system also comprises:
Processing unit, for the control command sent according to main website, correspondingly processes.
Compared with prior art, technical scheme provided by the present invention has the following advantages:
Power distribution network area management method provided by the present invention and system, power distribution network be divide into multiple control area, and in each control area, be all configured with a collecting unit, judging unit and control unit, for the data message of distribution terminals all in pickup area, and the running status of power distribution network is judged according to described data message, fault can be found in time, promptly handling failure, recover the normal operation of power distribution network, not only flexible but also reliable, thus need not by the information interaction between distribution terminal, realize the location of fault, the service restoration in isolation and non-faulting region, and then solve due to Limited information mutual between distribution terminal, and the non-faulting block supply caused recovers the problem lacking flexibility and fault handling time length.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The power distribution network area management method flow chart that Fig. 1 provides for the embodiment of the present invention one;
The distribution schematic diagram of multiple control area in the power distribution network that Fig. 2 provides for the embodiment of the present invention two;
The power distribution network Regional Management System structural representation that Fig. 3 provides for the embodiment of the present invention two;
The structural representation of certain control area in the power distribution network that Fig. 4 provides for the embodiment of the present invention two.
Embodiment
As described in background, existing feed line automatization system is mostly distributed feed line automatization system, the collection of power distribution network operation information and supervising of running status is carried out by Intelligent power distribution terminal, and when power distribution network breaks down, by the information interaction between Intelligent power distribution terminal, complete the service restoration in the location of fault zone, isolation and non-faulting region.But due to Limited information that can be mutual between distribution terminal, therefore, distributed feed line automatization system lacks flexibility in recovery non-faulting block supply, and the time of troubleshooting is longer, is unfavorable for the normal operation of power distribution network.
Based on this, the invention provides a kind of power distribution network area management method, to overcome the problems referred to above that prior art exists, comprising:
Gather the data message of distribution terminal in control area, described control area is the region comprising one or more feeder line in power distribution network; The running status of power distribution network is judged according to described data message, if normal operation, then continue the running status monitoring power distribution network, if there is fault, then send corresponding control command to corresponding distribution terminal, carry out the recovery of the location of fault zone, isolation and non-faulting block supply.
Present invention also offers a kind of power distribution network Regional Management System, described system is arranged in the control area divided in advance according to the topological structure of power distribution network, comprising:
Collecting unit, for gathering the data message of distribution terminal in control area; Judging unit, for judging the running status of power distribution network according to the data message collected; Control unit, for when power distribution network breaks down, sends corresponding control command to corresponding distribution terminal, carries out the recovery of the location of fault zone, isolation and non-faulting block supply.
Power distribution network area management method provided by the present invention and system, power distribution network be divide into multiple control area, and in each control area, be all configured with a collecting unit, judging unit and control unit, for the data message of distribution terminals all in pickup area, and the running status of power distribution network is judged according to described data message, fault can be found in time, promptly handling failure, recover the normal operation of power distribution network, not only flexible but also reliable, thus need not by the information interaction between distribution terminal, realize the location of fault, the service restoration in isolation and non-faulting region, and then solve due to Limited information mutual between distribution terminal, and the non-faulting block supply caused recovers the problem lacking flexibility and fault handling time length.
Be more than core concept of the present invention, for enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, when describing the embodiment of the present invention in detail; for ease of explanation; represent that the profile of device architecture can be disobeyed general ratio and be made partial enlargement, and described schematic diagram is example, it should not limit the scope of protection of the invention at this.In addition, the three-dimensional space of length, width and the degree of depth should be comprised in actual fabrication.
Be described in detail below by several embodiment.
Embodiment one
Present embodiments provide a kind of power distribution network area management method, its flow chart as shown in Figure 1.
S101: the data message gathering all distribution terminals in control area, described control area is the region comprising one or more feeder line in power distribution network;
First according to the topological structure of power distribution network, in advance power distribution network is divided into multiple control area, each control area is the region comprising one or more feeder line in power distribution network, and, a collecting unit is configured in each control area, to gather the data message of distribution terminals all in its control area of being responsible for, the data message of described distribution terminal refers to and the power distribution network operational factor that distribution terminal gathers comprises the running status of voltage magnitude, electric current, active power, reactive power, power factor etc. and switchgear.
S102: the running status judging power distribution network according to described data message, if normal operation, then enters step S103, if there is fault, then enters step S104.
After collecting unit collects the data message of the distribution terminal in its control area of being responsible for, judging unit judges the running status of power distribution network according to described data message, if described data message is all in the normal range (NR) preset, then think power distribution network normal operation, enter step S103, if described data message exceeds normal range (NR), then think that power distribution network breaks down, enter step S104.
S103: continue the running status monitoring power distribution network;
If judge the normal operation of power distribution network, then continue the running status monitoring power distribution network, detailed process is: continue the data message gathering distribution terminal in control area, and judge the running status of power distribution network according to described data message.The method that the present embodiment provides, the service data information of Real-time Collection power distribution network, and according to the running status of described data message real-time judge power distribution network, thus the real time monitoring achieved power distribution network and control.
S104: send corresponding control command to corresponding distribution terminal, carries out the recovery of the location of fault zone, isolation and non-faulting block supply.
After judging that power distribution network breaks down, control unit is according to the region wire topology information of the data message collected and power distribution network, determine location of fault region, and send the first control command distribution terminal corresponding to described fault zone, the switch utilizing described distribution terminal to control both sides, fault zone disconnects, and isolates, wherein to described fault zone, first control command is trip signal, even the order that the switch of both sides, fault zone disconnects.
After isolating fault zone, control unit sends the second control command to other distribution terminals in region, and the switch utilizing other distribution terminals to control non-faulting region corresponding closes, and recovers the power supply in non-faulting region.Wherein, the first control command is order of closing a floodgate, even the order that the outlet switch of the switch in non-faulting region and power distribution network is closed.
The power distribution network area management method that the present embodiment provides, also comprises step: the data message collected is sent to main website, and receives the control command of main website transmission, to realize the data interaction with main website.
Power distribution network area management method provided by the present invention, power distribution network be divide into multiple control area, and the data message of all distribution terminals in pickup area, then the running status of power distribution network is judged according to described data message, fault can be found in time, promptly handling failure, recover the normal operation of power distribution network, not only flexible but also reliable, thus need not by the information interaction between distribution terminal, realize the location of fault, the service restoration in isolation and non-faulting region, and then solve due to Limited information mutual between distribution terminal, and the non-faulting block supply caused recovers the problem lacking flexibility and fault handling time length.
Embodiment two
Present embodiments provide a kind of power distribution network Regional Management System, adopt the power distribution network area management method that embodiment one provides, described system is arranged in the control area divided in advance according to the topological structure of power distribution network, with the process of the collection of power distribution network operation data information in responsible control area, the monitoring of running status and fault, described control area is the multiple control areas be divided into by power distribution network according to the topological structure of power distribution network, and each control area is the region comprising one or more feeder line in power distribution network.Wherein, in power distribution network, the distribution schematic diagram of multiple control area is as shown in Figure 2.
The power distribution network Regional Management System that the present embodiment provides, structure chart as shown in Figure 3, comprising: collecting unit 31, judging unit 32 and control unit 33, and wherein, collecting unit 31 is for gathering the data message of distribution terminal in control area; Judging unit 32, for judging the running status of power distribution network according to the data message collected; Control unit 33, for when power distribution network breaks down, sends corresponding control command to corresponding distribution terminal, carries out the recovery of the location of fault zone, isolation and non-faulting block supply.
In the present embodiment, described system also comprises: memory cell, power subsystem, communication unit and processing unit (not shown), memory cell is used for the data message of distribution terminal in the control area arrived of storage of collected, to monitor according to the running status of described data message to power distribution network, and stored record is carried out to the history run state of power distribution network; Power subsystem is used for providing power supply for described power distribution network Regional Management System, and communication unit is used for the data message collected to be sent to main website, and receives the control command of main website transmission, to realize the data interaction with main website; The control command that processing unit is used for sending according to main website correspondingly processes, to achieve the monitoring and controlling of main website to whole power distribution network running status.
In the present embodiment, the structure chart of certain control area as shown in Figure 4.CB1 is the 10kV outlet switch of transformer station, and its switchtype is circuit breaker, carries out current quick to distribution line; K1-K6 is the on-load switch on distribution line; Intelligent power distribution terminal 1, distribution terminal 2 and distribution terminal 3 are responsible for three remote sensing information collection and fault detects of two switches respectively, namely distribution terminal 1 is responsible for three remote sensing information collection and fault detects of K1 and K2 switch, distribution terminal 2 is responsible for three remote sensing information collection and fault detects of K3 and K4 switch, and distribution terminal 3 is responsible for three remote sensing information collection and fault detects of K5 and K6 switch.
Collecting unit 31 gathers the data message of all distribution terminals in control area, judging unit 32 judges the running status of power distribution network according to described data message, if normal operation, then continue the running status monitoring power distribution network, if there is fault, then control unit 33 generates corresponding control command, and is sent to corresponding distribution terminal, carries out the recovery of the location of fault zone, isolation and non-faulting block supply.
When F1 point breaks down, as shown in Figure 4, intelligent terminal 1 detects that K switch 1 and K2 have fault current; therefore; fault message is sent to collecting unit 31 by Ethernet by intelligent terminal 1, and disconnects the outlet switch of CB1, carries out current quick to distribution line.Control unit 33 carries out the location of fault zone, the process of recovery of isolation and non-faulting block supply is specially: control module 33 is according to the region wire topology information of the data message collected and power distribution network, the localization of faults is between K2 and K3, then the first control command is sent to distribution terminal 1 and distribution terminal 2, utilize its control K2 and K3 to disconnect, fault zone is isolated.After fault zone successfully isolates, control module 33 sends the second control command to distribution terminal 3, utilize distribution terminal 3 to control K switch corresponding to non-faulting region 5 to close, recover the power supply in the region between non-faulting region and K3 to K5, control module 33 is also closed by the switch of the second control command control CB1 simultaneously, recover the power supply in the region between switch CB1 to K2, thus realize the recovery of the location of fault zone, isolation and non-faulting block supply.
The power distribution network Regional Management System that the present embodiment provides, be arranged in the control area divided in advance according to the topological structure of power distribution network, by the data message of distribution terminals all in collecting unit pickup area, the running status of power distribution network is judged by judging unit, to find fault in time, when power distribution network breaks down, by control unit handling failure rapidly, recover the normal operation of power distribution network, not only flexible but also reliable, thus need not by the information interaction between distribution terminal, realize the service restoration in non-faulting region, and then solve due to Limited information mutual between distribution terminal, and the non-faulting block supply caused recovers the problem lacking flexibility and fault handling time length.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a power distribution network area management method, is characterized in that, comprising:
Gather the data message of all distribution terminals in control area, described control area is the region comprising one or more feeder line in power distribution network;
The running status of power distribution network is judged according to described data message, if normal operation, then continue the running status monitoring power distribution network, if there is fault, then send corresponding control command to corresponding distribution terminal, carry out the recovery of the location of fault zone, isolation and non-faulting block supply.
2. method according to claim 1, is characterized in that, described control area divides in advance according to the topological structure of power distribution network.
3. method according to claim 2, it is characterized in that, the data message of described distribution terminal refers to and the power distribution network operational factor that distribution terminal gathers comprises the running status of voltage magnitude, electric current, active power, reactive power, power factor and switchgear.
4. method according to claim 3, is characterized in that, sends corresponding control command to corresponding distribution terminal, carries out the location of fault zone, the process of recovery of isolation and non-faulting block supply is specially:
According to the region wire topology information of the data message collected and power distribution network, determine location of fault region;
Send the distribution terminal that the first control command is corresponding to described fault zone, the switch utilizing described distribution terminal to control both sides, fault zone disconnects, and isolates described fault zone;
Send the second control command to other distribution terminals in region, the switch utilizing other distribution terminals to control non-faulting region corresponding closes, and recovers the power supply in non-faulting region.
5. method according to claim 4, is characterized in that, also comprises:
The data message collected is sent to main website, and receives the control command of main website transmission, to realize the data interaction with main website.
6. a power distribution network Regional Management System, is characterized in that, is arranged in the control area divided in advance according to the topological structure of power distribution network, comprises:
Collecting unit, for gathering the data message of all distribution terminals in control area;
Judging unit, for judging the running status of power distribution network according to the data message collected;
Control unit, for when power distribution network breaks down, sends corresponding control command to corresponding distribution terminal, carries out the recovery of the location of fault zone, isolation and non-faulting block supply.
7. system according to claim 6, is characterized in that, described system also comprises:
Memory cell, for the data message of distribution terminals all in the control area that storage of collected arrives.
8. system according to claim 7, is characterized in that, described system also comprises:
Power subsystem, for providing power supply for described power distribution network Regional Management System.
9. system according to claim 8, is characterized in that, described system also comprises:
Communication unit, for the data message collected is sent to main website, and receives the control command of main website transmission, to realize the data interaction with main website.
10. system according to claim 9, is characterized in that, described system also comprises:
Processing unit, for the control command sent according to main website, correspondingly processes.
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| CN105870923A (en) * | 2016-05-18 | 2016-08-17 | 中化重庆涪陵化工有限公司 | Power supply method of large factory |
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| CN110336383A (en) * | 2019-08-08 | 2019-10-15 | 国网冀北电力有限公司秦皇岛供电公司 | A kind of distribution feeder automation system |
| CN110807602A (en) * | 2019-11-12 | 2020-02-18 | 黑龙江电力调度实业有限公司 | Power dispatching system fault detection method based on big data |
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| CN105870923A (en) * | 2016-05-18 | 2016-08-17 | 中化重庆涪陵化工有限公司 | Power supply method of large factory |
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| CN110336383B (en) * | 2019-08-08 | 2021-07-23 | 国网冀北电力有限公司秦皇岛供电公司 | Distribution network feeder automatic system |
| CN110807602A (en) * | 2019-11-12 | 2020-02-18 | 黑龙江电力调度实业有限公司 | Power dispatching system fault detection method based on big data |
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| CN114243679B (en) * | 2021-11-05 | 2024-08-06 | 南方电网数字电网研究院有限公司 | Multi-service cooperative power distribution method, system, device and digital power distribution terminal |
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| CN117996703A (en) * | 2024-04-07 | 2024-05-07 | 国网江苏省电力有限公司常州供电分公司 | Power distribution network fault distinguishing and protecting device and method |
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| CN104882959B (en) | 2018-08-31 |
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