CN204089179U - Radial pattern power distribution network self-healing control system - Google Patents
Radial pattern power distribution network self-healing control system Download PDFInfo
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- CN204089179U CN204089179U CN201420020454.0U CN201420020454U CN204089179U CN 204089179 U CN204089179 U CN 204089179U CN 201420020454 U CN201420020454 U CN 201420020454U CN 204089179 U CN204089179 U CN 204089179U
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- 238000004891 communication Methods 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000013024 troubleshooting Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 3
- 238000007726 management method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 5
- 230000035876 healing Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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Abstract
The utility model provides a kind of radial pattern power distribution network self-healing control system, and it comprises feeder automation subsystem, and described feeder automation subsystem comprises: multiple ca bin, for being uploaded by corresponding communication channel by the fault message at scene; Sub-transformer station, for distribution network line distribution, described multiple ca bin is arranged on the distribution network line that is connected with described sub-transformer station; Bulk Supply Substation, communicate to connect with described multiple ca bin, for receiving on-the-spot fault message, and according on off state, fault detection information, Network topology, failure judgement section, issues guidance command, tripping fault section both sides switch, overlap each transformer station outlet switch and closed interconnection switch, recovers the power supply of non-fault line.The utility model structure extremely simplifies, and because rural electricity consumption load is single, its function and reliability are enough satisfied the demand, and cost but obviously reduces, and is convenient to promote power distribution network self Healing Technology.
Description
Technical field
The utility model relates to distribution network failure recovery technology field, particularly a kind of radial pattern power distribution network self-healing control system.
Background technology
Modern society has higher requirement to power supply reliability and the quality of power supply; but; the network structure feature of distribution self and load character determine the multiple of network equipment failure and property at any time, rely on protective relaying device to carry out isolated fault equipment to be difficult to reach good effect merely.Therefore, rapidly, isolated fault exactly, fast region is recovered to Distribution Network Failure and restore electricity and can reduce loss of outage, improve power supply reliability.
Given this, based on the development of the technology such as transducer, communication, computer, industry proposes radial pattern power distribution network self-healing control technology." self-healing " refers to that in an electrical network, problematic element isolates from system, and when seldom or without human intervention, system can be made to return to normal operating condition rapidly, thus interrupt the electric service to user hardly.The power distribution network with self-healing control system is called self-healing electrical network, and it has multiple advantages, such as:
Carry out continuously online self-assessment, to predict that electrical network may produced problem, find problem that is that existed or that developing, and take immediate steps and controlled or correct.
Guarantee the reliability of electrical network, fail safe, the quality of power supply and efficiency.
To try one's best and reduce electric service interruption, abundant application data acquiring technology, and perform decision support algorithm, avoid or limit the interruption of supply of electric power, the service of restoring electricity rapidly.
Feeder automation (Feeder Automatoin, AF) is an importance of building self-healing electrical network, and feeder automation refers to the automation of distribution line, is one of most important content in power distribution automation.The effect of feeder automation generally comprises: in normal state, the running status of the on off state of Real-Time Monitoring feeder line, voltage, electric current, the parameter such as active power and reactive power and switchgear, realize the breaking-closing operating of line switching, reach load balancingization by network reconfiguration and reduce the object of line loss; Failure logging is obtained when fault, and automatic discrimination and isolation feeder fault section and recover non-faulting block supply.After fault occurs, how to remove fault, isolated fault section as soon as possible and recover the power supply in dead electricity region, and realizing network reconfiguration.
Build feed line automatization system and comprise three aspects: l) ca bin (FTU), FTU coordinates the protection implement terminal jointly forming distribution line with line switching, wherein line switching comprises on-load switch, primary cut-out etc.2) communication network, i.e. radio communication and wire communication, radio communication comprises GPRS communication, radio set communication etc., and wire communication comprises optical fiber communication, power carrier etc.3) master control backstage, platform based on SCADA supervisory control system, carries out circuit monitoring running state, data acquisition to distribution line.Rely on communication network, master control background acquisition FTU monitors circuit network information, to control the ruuning situation of distribution, based on the data of monitoring, by the operation of master control background application, reach the optimizing operation of distribution, fault occur time fast processing, reach reduce power failure area with shorten the fault outage time.Meanwhile, dispatcher can carry out the operation such as remote control and remote regulating according to field requirement and policy etc. to FTU, to make correct decision-making.
Visible, FTU has indispensable important function in feed line automatization system.But in vast rural area, power distribution network is multi-point and wide-ranging, invest less, FTU quantity is few, causes distribution network automated degree lower, often can only accomplish that transformer station 10 kV outgoing line is monitored, cannot monitor low-voltage distribution transformer, cannot provide data supporting for Electric Power Network Planning.At present, feed line automatization system construction cost is higher, greatly have impact on self-healing distribution network construction, therefore, be necessary to provide that a kind of structure is simple, function meets primary demand, stay-in-grade feeder automation construction scheme, to improve the self-healing ability of Rural Power Distribution Network fast.
Summary of the invention
The purpose of this utility model is to provide a kind of radial pattern power distribution network self-healing control system, to reduce the feeder automation construction cost of self-healing electrical network, is convenient to the enforcement of self-healing electric power network technique in financial strain areas such as rural areas.
In order to solve the problem, the utility model provides a kind of radial pattern power distribution network self-healing control system, and its technical scheme is as follows:
A kind of radial pattern power distribution network self-healing control system, comprise feeder automation subsystem, wherein, described feeder automation subsystem comprises: multiple ca bin, for being uploaded by corresponding communication channel by the fault message at scene; Sub-transformer station, for distribution network line distribution, described multiple ca bin is arranged on the distribution network line that is connected with described sub-transformer station; Bulk Supply Substation, communicate to connect with described multiple ca bin, for receiving on-the-spot fault message, and according on off state, fault detection information, Network topology, failure judgement section, issues guidance command, tripping fault section both sides switch, overlap each transformer station outlet switch and closed interconnection switch, recovers the power supply of non-fault line; Wherein, described ca bin comprises: power module, is converted to direct voltage for alternating voltage, as the working power of described ca bin; Intelligence main control module, the analog input unit comprising CPU and be connected with described CPU, On-off signal unit, communication unit, described intelligent main control module is for realizing the measurement of on-pole switch, control, monitoring and troubleshooting; Switch supplementary module, is connected with the CPU of described intelligent main control module, and for the action of auxiliary on-pole switch, described CPU is microprocessor 80C196KC, and described communication unit is asynchronous communication chip TL16C552.
Preferably, in described radial pattern power distribution network self-healing control system, the distribution network line between described sub-transformer station is annular.
Preferably, in described radial pattern power distribution network self-healing control system, described power module also comprises storage battery, and described power module is also for AC power and the switching of DC power supply, the charging of described storage battery and management; Described storage battery forms back-up source, to guarantee that described ca bin is after losing external ac power source, still can reliably, continuous firing.
Enforcement of the present utility model can reduce the complexity of feeder automation subsystem, reduce the construction cost of self-healing electrical network, more preferably, ca bin of the present utility model is when meeting basic demand, structure extremely simplifies, because rural electricity consumption load is single, its function and reliability are enough satisfied the demand, but cost but obviously reduces.
Accompanying drawing explanation
Fig. 1 is the topology diagram of the feeder automation subsystem of the utility model preferred embodiment;
Fig. 2 is the theory diagram of the ca bin of the feeder automation subsystem shown in Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As shown in Figure 1, the feeder automation subsystem of the utility model preferred embodiment comprises multiple ca bin FTU, sub-transformer station A, sub-transformer station B, Bulk Supply Substation AB.
Wherein, multiple ca bin FTU is used for the fault message at scene to be uploaded by corresponding communication channel; Sub-transformer station A, sub-transformer station B are used for respectively to distribution network line A1, B1 distribution, and multiple ca bin FTU is arranged on distribution network line A1, B1 of being connected with sub-transformer station A, B.Bulk Supply Substation AB and multiple ca bin FTU communicates to connect, for receiving on-the-spot fault message, and according on off state, fault detection information, Network topology, failure judgement section, issue guidance command, tripping fault section both sides switch, overlap each transformer station outlet switch and closed interconnection switch, recovers the power supply of non-fault line.
In other embodiments, sub-transformer station A, B can increase as required or reduce.
As shown in Figure 1, distribution network line A1, B1 between sub-transformer station A, B form loop configuration, improve power supply reliability.
Specifically, feed automatic partition system shown in Fig. 1 is (centralized) power distribution automation based on Bulk Supply Substation AB, " intelligence " of being responsible for troubleshooting and network reconfiguration is placed in Bulk Supply Substation AB, and the real time data that it depends on SCADA system provides is processed the fault occurred.Fault message is delivered to main website by corresponding communication channel by on-the-spot multiple ca bin FTU, Bulk Supply Substation AB is according to state, fault detection information, the Network topology of on-pole switch, failure judgement section, issue guidance command, tripping fault section both sides switch, overlap himself and sub-transformer station A, B outlet switch and closed interconnection switch, recovers the power supply of non-fault line.
When power distribution network multiple sub-transformer station A, B administer in power supply area break down simultaneously or sub-transformer station breaks down time, the transfer of load and service restoration need to consider whole Distributing network structure and ruuning situation, at this moment, troubleshooting on Bulk Supply Substation AB and network reconfiguration function is needed to start to coordinate the troubleshooting of multiple sub-transformer station A, B.
Visible, this feed automatic partition system has the following advantages: by once overlapping and can completing troubleshooting; Network-wide optimization analytical calculation can be carried out; Troubleshooting due to Bulk Supply Substation completes on the real-time topology architecture basics of distribution.Therefore, even the network of many power supplys complexity, applicable equally, project plan comparison is flexible, and the time is substantially identical.
As shown in Figure 2, the ca bin FTU of this preferred embodiment comprises: intelligent main control module 1, switch supplementary module 2, power module 3.Wherein, power module 3 comprises AC input cell 31, Switching Power Supply 32 and storage battery 33.Intelligence main control module 1 comprises communication unit 11, CPU 12, analog input unit 13, On-off signal unit 14.Switch supplementary module 2 mainly comprises auxiliary relay 21.
Specifically, in power module 3, AC input cell 31 is converted to direct voltage for alternating voltage, as the working power of ca bin FTU.Switching Power Supply 32 is for AC power and the switching of DC power supply, the charging of storage battery 33 and management; Storage battery 33 forms back-up source, to guarantee that ca bin FTU is after losing external ac power source, still can reliably, continuous firing.The CPU 12 of intelligence main control module 1 is connected to analog input unit 13, On-off signal unit 14, communication unit 11, and the CPU 12 of intelligent main control module 2 is for realizing the measurement of on-pole switch, control, monitoring and troubleshooting.Analog input unit 13, On-off signal unit 14 are respectively used to the analog quantity of incoming feeder terminal unit FTU, the conversion of switching value, input, and communication unit 11 is for ca bin FTU and outside information interaction.The auxiliary relay 21 of switch supplementary module 2 is connected with the CPU 12 of intelligent main control module 1, for the action of auxiliary on-pole switch.
More specifically, CPU 12 can adopt microprocessor 80C196KC, and its program storage, ARM can select programmable peripheral chip PSD83F4Z, and communication unit 11 can adopt conventional asynchronous communication chip TL16C552.
The course of work of ca bin FTU is roughly: in each AC signal cycle; decile synchronized sampling is carried out simultaneously to voltage, electric current, protective current etc.; and gather the remote signalling such as the position of the switch, energy storage state switching value; each phase voltage, electric current, active power and reactive power is calculated subsequently by CPU 12; determine the position of the switch, energy storage state, detect the setting parameter whether having remote computer system to be issued to this ca bin FTU simultaneously.If receive the setting parameter below remote computer system, CPU 12 resolves data message of adjusting, and changes corresponding setting parameter variate-value; Otherwise, keep former setting parameter constant.According to the measured value of above-mentioned voltage and protective current; judge whether feeder line has fault to occur; if line failure, then CPU 12 is according to the fault algorithms program of this ca bin FTU self, automatically realizes fault location, isolation and healthy sections automatic recovery of power supply.
To sum up, the utility model structure is simple, and construction cost is low, is convenient to safeguard, meets the fund of rural power grids, the talent is actual.Advanced electrical network self Healing Technology can be made to break through fund, talent's bottleneck, popularized in rural area.
As known by the technical knowledge, the utility model can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Allly all to be included in the utility model within the scope of the utility model or being equal to the change in scope of the present utility model.
Claims (3)
1. a radial pattern power distribution network self-healing control system, comprises feeder automation subsystem, it is characterized in that, described feeder automation subsystem comprises:
Multiple ca bin, for uploading the fault message at scene by corresponding communication channel;
Sub-transformer station, for distribution network line distribution, described multiple ca bin is arranged on the distribution network line that is connected with described sub-transformer station;
Bulk Supply Substation, communicate to connect with described multiple ca bin, for receiving on-the-spot fault message, and according on off state, fault detection information, Network topology, failure judgement section, issues guidance command, tripping fault section both sides switch, overlap each transformer station outlet switch and closed interconnection switch, recovers the power supply of non-fault line;
Wherein, described ca bin comprises:
Power module, is converted to direct voltage for alternating voltage, as the working power of described ca bin;
Intelligence main control module, the analog input unit comprising CPU and be connected with described CPU, On-off signal unit, communication unit, described intelligent main control module is for realizing the measurement of on-pole switch, control, monitoring and troubleshooting;
Switch supplementary module, is connected with the CPU of described intelligent main control module, for the action of auxiliary on-pole switch;
Described CPU is microprocessor 80C196KC, and described communication unit is asynchronous communication chip TL16C552.
2. radial pattern power distribution network self-healing control system according to claim 1, is characterized in that, the distribution network line between described sub-transformer station is annular.
3. radial pattern power distribution network self-healing control system according to claim 1, it is characterized in that, described power module also comprises storage battery, and described power module is also for AC power and the switching of DC power supply, the charging of described storage battery and management; Described storage battery forms back-up source, to guarantee that described ca bin is after losing external ac power source, still can reliably, continuous firing.
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| CN201420020454.0U CN204089179U (en) | 2014-01-14 | 2014-01-14 | Radial pattern power distribution network self-healing control system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634128A (en) * | 2016-01-27 | 2016-06-01 | 国网山东无棣县供电公司 | Maintenance and control system between master substation and slave stations |
| CN110867966A (en) * | 2019-11-27 | 2020-03-06 | 上海欣影电力科技股份有限公司 | Distribution terminal full coverage area distributed self-healing system |
| WO2020155481A1 (en) * | 2019-01-30 | 2020-08-06 | 南京南瑞继保电气有限公司 | Fault isolation and fault recovery method and system for medium-voltage direct current distribution network |
| CN111952929A (en) * | 2020-08-13 | 2020-11-17 | 广东电网有限责任公司 | Self-healing false switching-on judgment method and device for distribution network feeder automation terminal |
| CN112736872A (en) * | 2020-12-25 | 2021-04-30 | 贵州电网有限责任公司 | Power distribution network protection control strategy optimization method based on real-time analysis of operation mode |
| CN112736868A (en) * | 2020-12-23 | 2021-04-30 | 国网浙江省电力有限公司金华供电公司 | 5G intelligent distributed distribution network protection system |
| CN113156265A (en) * | 2021-03-29 | 2021-07-23 | 贵州电网有限责任公司 | Fault detection method and system for batch transfer of feeder lines of power distribution network |
| CN113890788A (en) * | 2021-09-23 | 2022-01-04 | 广东电网有限责任公司 | Self-healing method, device, medium and equipment for feeder line communication nodes of power distribution network |
| CN112736868B (en) * | 2020-12-23 | 2024-09-24 | 国网浙江省电力有限公司金华供电公司 | 5G intelligent distributed distribution network protection system |
-
2014
- 2014-01-14 CN CN201420020454.0U patent/CN204089179U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634128A (en) * | 2016-01-27 | 2016-06-01 | 国网山东无棣县供电公司 | Maintenance and control system between master substation and slave stations |
| WO2020155481A1 (en) * | 2019-01-30 | 2020-08-06 | 南京南瑞继保电气有限公司 | Fault isolation and fault recovery method and system for medium-voltage direct current distribution network |
| CN110867966A (en) * | 2019-11-27 | 2020-03-06 | 上海欣影电力科技股份有限公司 | Distribution terminal full coverage area distributed self-healing system |
| CN111952929A (en) * | 2020-08-13 | 2020-11-17 | 广东电网有限责任公司 | Self-healing false switching-on judgment method and device for distribution network feeder automation terminal |
| CN111952929B (en) * | 2020-08-13 | 2022-08-16 | 广东电网有限责任公司 | Self-healing false switching-on judgment method and device for distribution network feeder automation terminal |
| CN112736868A (en) * | 2020-12-23 | 2021-04-30 | 国网浙江省电力有限公司金华供电公司 | 5G intelligent distributed distribution network protection system |
| CN112736868B (en) * | 2020-12-23 | 2024-09-24 | 国网浙江省电力有限公司金华供电公司 | 5G intelligent distributed distribution network protection system |
| CN112736872A (en) * | 2020-12-25 | 2021-04-30 | 贵州电网有限责任公司 | Power distribution network protection control strategy optimization method based on real-time analysis of operation mode |
| CN112736872B (en) * | 2020-12-25 | 2023-03-31 | 贵州电网有限责任公司 | Power distribution network protection control strategy optimization method based on real-time analysis of operation mode |
| CN113156265A (en) * | 2021-03-29 | 2021-07-23 | 贵州电网有限责任公司 | Fault detection method and system for batch transfer of feeder lines of power distribution network |
| CN113890788A (en) * | 2021-09-23 | 2022-01-04 | 广东电网有限责任公司 | Self-healing method, device, medium and equipment for feeder line communication nodes of power distribution network |
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