CN201527460U - Distribution feeder fault locating terminal unit - Google Patents
Distribution feeder fault locating terminal unit Download PDFInfo
- Publication number
- CN201527460U CN201527460U CN2009201831098U CN200920183109U CN201527460U CN 201527460 U CN201527460 U CN 201527460U CN 2009201831098 U CN2009201831098 U CN 2009201831098U CN 200920183109 U CN200920183109 U CN 200920183109U CN 201527460 U CN201527460 U CN 201527460U
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- China
- Prior art keywords
- fault
- cpu
- terminal unit
- distribution feeder
- interface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
A distribution feeder fault locating terminal unit adopts a modular design and comprises a power source, a CPU system board and an interface circuit, wherein the power source is connected to the CPU system board and the interface circuit, the CPU system board comprises a CPU, an external memory, a clock chip and a reset chip, and the external memory, the clock chip, the reset chip and the interface circuit are all connected to the CPU. The distribution feeder fault locating terminal unit has the advantages that when a distribution network works normally, running condition of relevant switches is acquired, when a fault occurs, the detected fault information is actively transferred to a main station, then main station programs receive and analyze the fault information and determine a certain fault section timely and correctly, and isolation of the fault section and power restoration of a non-fault area can be realized through a remote control switch, thereby reducing working load of operation inspectors, reducing potential safety hazards, and increasing automation level of the distribution feeder.
Description
[technical field]
The utility model relates to the line feed terminals unit of a kind of method of operation that is used to monitor feeder line and load, realization feeder automation.
[background technology]
The effect of distribution feeder automation is reliability and the quality that improves power supply, reduces power distribution network operation and recondition expense.In all functions of feeder automation, localization of fault, isolation and to recover the power supply of non-fault zone be a main function.This function reduces the power off time to the user for dwindling the fault outage scope, improves power supply reliability and plays an important role.Line feed terminals unit (FTU) is the interface that automated system and primary equipment connect, be mainly used in the supervision and the control of distribution system transformer, isolating switch, automatic circuit, sectionaliser, post load switch, ring main unit, pressure regulator, reactive-load compensation capacitor, with the feeder line master station communication, the data that provide distribution system operation control and administrative institute to need, carry out the regulating and controlling instruction that main website provides, to realize every function of feeder automation to controller switching equipment.FTU comes down to a kind of automatization terminal between terminal unit (RTU) and relay protection.The line feed terminals unit is as an important ring in the feeder automation, have to power distribution network take remote measurement, functions such as remote signalling, remote control, accident record, so will improve the automatization level of power distribution network, key is to improve the performance of line feed terminals unit F TU.
[summary of the invention]
Technical problem to be solved in the utility model is to provide a kind of distribution feeder localization of fault terminal unit, realizes the method for operation of feeder line and the real-time monitoring of load, for localization of fault, isolation and recover the power supply of non-fault zone essential information is provided.
The utility model solves the problems of the technologies described above by the following technical programs: a kind of distribution feeder localization of fault terminal unit, adopt modular design, comprise power supply, cpu system plate and interface circuit, described power supply is connected to cpu system plate and interface circuit, described cpu system plate comprises CPU, outer extension memory, clock chip, chip resets, described outer extension memory, clock chip, the chip that resets, and interface circuit all is connected to CPU.
This utility model further is specially:
Described power supply comprises solar cell panel assembly, controller for solar, battery pack and isolates the DC/DC transducer, described solar cell panel assembly, controller for solar, battery pack link to each other successively, solar cell panel assembly is by the charging of controller for solar accumulators group, the output terminal of controller for solar is connected to simultaneously isolates the DC/DC transducer, and described isolation DC/DC transducer is connected to cpu system plate and interface circuit.
Described battery pack adopts lead-acid batteries.
Described outer extension memory comprises program run storer, program storage, data-carrier store.
As an embodiment, described program run storer adopts SRAM; Program storage adopts NORFLASH, and model is; Data-carrier store adopts NAND FLASH.
Described cpu system plate is flush bonding module independently.
Described interface circuit comprises battery tension buffer circuit, RS-232 serial line interface, GPRS communication module, infrared communication interface, switching value IO interface, A/D converter, fault-signal receiving port, the battery pack of described power supply is connected to A/D converter by the battery tension buffer circuit, and described RS-232 serial line interface, GPRS communication module, infrared communication interface, switching value IO interface, A/D converter, fault-signal receiving port all are connected to the CPU in the cpu system plate.
The advantage of the utility model distribution feeder localization of fault terminal unit is: when power distribution network normally moves, gather the ruuning situation of respective switch; After fault takes place, the failure message that detects is initiatively sent to main website by GPRS network, main website software receives and analysis of failure information, determine fault section timely and accurately, and can realize the isolation of fault section and the service restoration of non-fault zone by distant place gauge tap, thereby reduce operational inspection personnel's workload, reduce potential safety hazard, improved the distribution feeder automation level.
[description of drawings]
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the utility model distribution feeder localization of fault terminal unit hardware block diagram.
Fig. 2 is the software architecture diagram of the utility model distribution feeder localization of fault terminal unit.
[embodiment]
See also Fig. 1, the utility model distribution feeder localization of fault terminal unit adopts modular design, comprises power supply, cpu system plate and interface circuit.
Described power supply adopts the solar power system power supply, comprises solar cell panel assembly, controller for solar, battery pack and isolates the DC/DC transducer.This power supply is easy for installation, and when the feeder line dead electricity, terminal still can operate as normal.Described solar cell panel assembly, controller for solar, battery pack link to each other successively, solar cell panel assembly is by the charging of controller for solar accumulators group, the output terminal of controller for solar is connected to simultaneously isolates the DC/DC transducer, described isolation DC/DC transducer is connected to cpu system plate and interface circuit, and the power supply of cpu system plate and interface circuit is provided.The output of controller for solar simultaneously can be as the operation detection power supply of this terminal.In the present embodiment, battery pack can adopt the maintenance-free lead accumulator group.
Described cpu system plate comprises CPU, outer extension memory, clock chip (RTC), chip and their peripheral circuit reset.Described outer extension memory, clock chip, and the chip that resets all is connected to CPU.
In the present embodiment, CPU selects 32 ARM microcontrollers for use, and this CPU is integrated abundant peripheral hardware is for different applied environments provides bigger design redundancy.Outer extension memory comprises 3 parts: program run storer, program storage, data-carrier store.Described program run storer adopts SRAM (static memory); Program storage adopts NOR FLASH (flash memory); Data-carrier store adopts NANDFLASH.
The cpu system plate is designed to independently flush bonding module, and the hardware resource of CPU is reserved with the twin-string socket form, realizes different application by expanding different interface circuits.
Described interface circuit comprises battery tension buffer circuit, RS-232 serial line interface, GPRS communication module, infrared communication interface, switching value IO interface, A/D (mould/number) converter, fault-signal receiving port etc.The battery pack of described power supply is connected to A/D converter by the battery tension buffer circuit, and described RS-232 serial line interface, GPRS communication module, infrared communication interface, switching value IO interface, A/D (mould/number) converter, fault-signal receiving port all are connected to the CPU in the cpu system plate.
Described CPU has the dual serial asynchronous communication interface, and interface is as the software debugging interface of computing machine; Another is connected to the GPRS module, realizes communicating by letter with the GPRS of main website.Send among the CPU after the magnitude of current that current transformer CT records is changed by A/D converter and handle.
Described infrared communication interface employing integrated form infrared receiving/transmission pipe realization CPU communicates by letter with handheld terminal.CPU has expanded the output of 3 tunnel relay-type switching values simultaneously and 6 tunnel switching values of isolating are imported as the switching value IO interface.Switching value output is used for separating brake, combined floodgate and the energy storage control of switch; 6 way switch amounts are used for detector switch state, fault detector warning, the control switching of a terrain distant place, switch energy storage performance etc.
Described fault-signal receiving port adopts ZigBee RF (radio frequency) chip, fault-signal that can receiving terminal near fault indicator if the fault detect of FTU was lost efficacy, can be foundation with the information of fault detector then, judge whether fault of feeder line, improved the fault detect reliability.
The course of work of this distribution feeder localization of fault terminal unit is as described below: when power distribution network normally moves, gather A, C phase current, battery tension in real time, deliver to CPU by universal serial bus, CPU packs data approximately according to the negative regulatory control of standard, and carry out hour freezing, regularly be sent to main station system by the GPRS communication module, it regularly sets and is issued to terminal by master system in the uplink time interval.When FTU detects switch generation displacement, fault-signal by the switching value IO interface or receives fault-signal by the fault-signal receiving port, terminal is with displacement information and failure message record and preservation, real-time report is given main station system, and main station system can be judged the guilty culprit zone according to the failure message that terminal is uploaded.
Advantage of the present utility model is the whole employing of terminal modular design, and the cpu system plate is designed to independently flush bonding module, realizes different application by expanding different interface circuits; Power supply adopts the solar power system power supply, has overcome the shortcoming that traditional power supply mode can't operate as normal under feeder line dead electricity situation.Communication protocol adopts " Q/GDW130-2005 power load management system data transmission stipulations " (being called for short " negative regulatory control is approximately "), can be with various types of main station system interface, and practical; Communication mode is GPRS, does not need to lay in addition communication line, and superior system can be obtained terrain information easily; Data acquisition modes adopts industrial synchronous serial mode, and picking rate is fast, and hardware circuit is simple; The spread radio communication interface can receive the fault-signal of near fault indicator, the reliability height of fault detect.
Claims (7)
1. distribution feeder localization of fault terminal unit, it is characterized in that: adopt modular design, comprise power supply, cpu system plate and interface circuit, described power supply is connected to cpu system plate and interface circuit, described cpu system plate comprises CPU, outer extension memory, clock chip, chip resets, described outer extension memory, clock chip, the chip that resets, and interface circuit all is connected to CPU.
2. distribution feeder localization of fault terminal unit as claimed in claim 1, it is characterized in that: described power supply comprises solar cell panel assembly, controller for solar, battery pack and isolates the DC/DC transducer, described solar cell panel assembly, controller for solar, battery pack link to each other successively, solar cell panel assembly is by the charging of controller for solar accumulators group, the output terminal of controller for solar is connected to simultaneously isolates the DC/DC transducer, and described isolation DC/DC transducer is connected to cpu system plate and interface circuit.
3. distribution feeder localization of fault terminal unit as claimed in claim 2 is characterized in that: described battery pack adopts lead-acid batteries.
4. distribution feeder localization of fault terminal unit as claimed in claim 1, it is characterized in that: described outer extension memory comprises program run storer, program storage, data-carrier store.
5. distribution feeder localization of fault terminal unit as claimed in claim 4 is characterized in that: described program run storer adopts SRAM; Program storage adopts NOR FLASH; Data-carrier store adopts NAND FLASH.
6. distribution feeder localization of fault terminal unit as claimed in claim 1 is characterized in that: described cpu system plate is flush bonding module independently.
7. distribution feeder localization of fault terminal unit as claimed in claim 2, it is characterized in that: described interface circuit comprises the battery tension buffer circuit, the RS-232 serial line interface, the GPRS communication module, the infrared communication interface, the switching value IO interface, A/D converter, the fault-signal receiving port, the battery pack of described power supply is connected to A/D converter by the battery tension buffer circuit, described RS-232 serial line interface, the GPRS communication module, the infrared communication interface, the switching value IO interface, A/D converter, the fault-signal receiving port all is connected to the CPU in the cpu system plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201831098U CN201527460U (en) | 2009-09-28 | 2009-09-28 | Distribution feeder fault locating terminal unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201831098U CN201527460U (en) | 2009-09-28 | 2009-09-28 | Distribution feeder fault locating terminal unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201527460U true CN201527460U (en) | 2010-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201831098U Expired - Lifetime CN201527460U (en) | 2009-09-28 | 2009-09-28 | Distribution feeder fault locating terminal unit |
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| CN (1) | CN201527460U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185299A (en) * | 2011-05-16 | 2011-09-14 | 广东电网公司深圳供电局 | Method and device for processing failures of multi-scheme distribution network |
| CN102487217A (en) * | 2010-12-02 | 2012-06-06 | 北京水木源华电气有限公司 | Automated remote terminal of power distribution line |
| CN103150619A (en) * | 2011-12-06 | 2013-06-12 | 国家电网公司 | Hidden danger processing system and method for power transmission network |
| CN104808049A (en) * | 2015-05-12 | 2015-07-29 | 中国电力科学研究院 | Portable transformer neutral point current monitoring device |
| CN105490287A (en) * | 2015-12-24 | 2016-04-13 | 国网福建省电力有限公司 | Medium-voltage distributed reactive power optimization system and method |
| CN109581041A (en) * | 2018-12-06 | 2019-04-05 | 国电南瑞科技股份有限公司 | A kind of high-speed sampling method and system suitable for diagnosis terminal |
| CN111668939A (en) * | 2020-06-22 | 2020-09-15 | 国网福建省电力有限公司 | Distributed station terminal based on asynchronous communication mode |
-
2009
- 2009-09-28 CN CN2009201831098U patent/CN201527460U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487217A (en) * | 2010-12-02 | 2012-06-06 | 北京水木源华电气有限公司 | Automated remote terminal of power distribution line |
| CN102185299A (en) * | 2011-05-16 | 2011-09-14 | 广东电网公司深圳供电局 | Method and device for processing failures of multi-scheme distribution network |
| CN102185299B (en) * | 2011-05-16 | 2013-11-13 | 广东电网公司深圳供电局 | Method and device for processing failures of multi-scheme distribution network |
| CN103150619A (en) * | 2011-12-06 | 2013-06-12 | 国家电网公司 | Hidden danger processing system and method for power transmission network |
| CN103150619B (en) * | 2011-12-06 | 2016-10-05 | 国家电网公司 | The hidden danger processing system of power transmission network and method |
| CN104808049A (en) * | 2015-05-12 | 2015-07-29 | 中国电力科学研究院 | Portable transformer neutral point current monitoring device |
| CN105490287A (en) * | 2015-12-24 | 2016-04-13 | 国网福建省电力有限公司 | Medium-voltage distributed reactive power optimization system and method |
| CN105490287B (en) * | 2015-12-24 | 2018-11-27 | 国网福建省电力有限公司 | Distributed ORPF system and method is pressed in one kind |
| CN109581041A (en) * | 2018-12-06 | 2019-04-05 | 国电南瑞科技股份有限公司 | A kind of high-speed sampling method and system suitable for diagnosis terminal |
| CN111668939A (en) * | 2020-06-22 | 2020-09-15 | 国网福建省电力有限公司 | Distributed station terminal based on asynchronous communication mode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FUJIAN HONGKE ELECTRIC POWER TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: QUANZHOU KELI ELECTRIC CO., LTD. Effective date: 20150811 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150811 Address after: 362000 Fujian province Quanzhou Fengze District High Technology Industrial Park Road breeding base E building four floor Patentee after: Hong Ke Power Tech Corp. Inc. of Fujian Province Address before: Fengze District of Quanzhou city Fujian province 362000 Shipu Xun Mei Industrial Zone Hardware Factory East building two floor, third floor Patentee before: Quanzhou Keli Electric Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100714 |
|
| CX01 | Expiry of patent term |