CN103746455A - Power distribution network overvoltage suppression and fault positioning isolation control device - Google Patents
Power distribution network overvoltage suppression and fault positioning isolation control device Download PDFInfo
- Publication number
- CN103746455A CN103746455A CN201310753603.4A CN201310753603A CN103746455A CN 103746455 A CN103746455 A CN 103746455A CN 201310753603 A CN201310753603 A CN 201310753603A CN 103746455 A CN103746455 A CN 103746455A
- Authority
- CN
- China
- Prior art keywords
- module
- power distribution
- distribution network
- adopts
- suppresses
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a control device, in particular to a power distribution network overvoltage suppression and fault positioning isolation control device, which comprises a main controller, an analog quantity collecting module, an input and output module, a communication module, a keyboard interface module, an LCD (liquid crystal display) display screen, an Internet access module, an RTC (real-time communication) module, a storage module and a power supply module, wherein the main controller is respectively and electrically connected with the analog quantity collecting module, the input and output module, the communication module, the interface module, the LCD display screen, the Internet access module, the RTC module, the storage module and the power supply module. The power distribution network overvoltage suppression and fault positioning isolation control device has the advantages that a UC/OS-II real-time embedded operation system is adopted, the high speed and multi-task real-time response requirements of a set device can be met, and the price is low.
Description
Technical field
The present invention relates to a kind of control device, relate in particular to a kind of power distribution network over-voltage and suppress and fault location isolated controlling device.
Background technology
China's power distribution network number is huge, has a very wide distribution, and apparatus insulated level is low, and the impact that is subject to electrical network internal overvoltage and extraneous natural environment causes insulation fault, and power supply reliability is in urgent need to be improved.The subject matter of its existence: overvoltage, line selection and location, system capacitive current increase substantially, arc light can not put out certainly etc.
The subject matter existing for above-mentioned power distribution network, those skilled in the art have proposed neutral point and adopt arc suppression coil parallel resistance earthing mode to carry out the thinking of route selection in recent years, its power distribution network over-voltage suppresses and failure line selection the complete sets of equipment, from the angle of system, comprehensive study also realizes Overvoltage suppressing, single-phase earth fault line selection, automatic tuning capabilities, at test philosophy with realize technical realization and break through.
But the shortcoming of its existence mainly contains:
Controller adopts industrial computer+capture card+regulation machine, and connecting line is many, and loose contact, poor reliability; In industrial computer, hard disk, cpu fan, system radiating fan etc. are all the mechanical parts that needs rotation, and anti-vibration ability and impact capacity are poor; The installation of standing of capture card golden finger, anti-vibration ability and impact capacity are poor, contact reliability is poor, resistance to dust ability; Industrial computer operating system adopts WIN2000, DOS etc., and system is unstable, unprofessional; Industrial computer operation operating ambient temperature, at 0 ℃～40 ℃, can not meet-25 ℃～+ 40 ℃ requirements of distribution system; Can not adapt to worse operational environment, as dust, humidity etc., and expensive.
Summary of the invention
Technique effect of the present invention can overcome above-mentioned defect, provide a kind of power distribution network over-voltage to suppress and fault location isolated controlling device, the subject matter that it exists for above-mentioned power distribution network, realize Overvoltage suppressing, single-phase earth fault line selection, automatic tuning capabilities, at test philosophy with realize technical realization and break through.
For achieving the above object, the present invention adopts following technical scheme: it comprises master controller, analogue collection module, input and output module, communication module, keyboard interface module, LCD display, network interface module, RTC module, memory module, power module, and master controller is electrically connected with analogue collection module, input and output module, communication module, interface module, LCD display, network interface module, RTC module, memory module, power module respectively;
Described input and output module comprises switching input module, photoelectric isolation module, switching value output module, photoelectricity/relay isolation module, FPGA module, switching input module is by photoelectric isolation module and FPGA module communication, and switching value output module is by photoelectricity/relay isolation module and FPGA module communication;
Described master controller sends analog quantity and switch acquisition order, analogue collection module and switching input module send to master controller by the various voltages in circuit, current signal and contactor state information, first master controller judges network operation state according to the algorithm of design, if electrical network normally moves, follow the tracks of in time electric network state, send corresponding control command, show network operation state in LCD display, timing is uploaded to host computer by the information of collection; If the single-phase instantaneity earth fault of electrical network or disturbance and the single-phase permanent earth fault of electrical network, master controller sends corresponding earth fault processing command, in LCD display, show which kind of ground state, in the machine and to host computer, send and record earth fault information simultaneously, sound and light alarm is informed operating personnel.
Technology of the present invention is that a kind of power distribution network over-voltage based on Embedded DSP System suppresses and fault location isolated controlling device, is mainly used in power distribution network over-voltage inhibition and fault location and is isolated in covering device.This control device suppresses based on power distribution network over-voltage and fault location is isolated under the demand for control of covering device and designs, this control device is reliable, volume is little, lightweight, low price, aiming at power distribution network over-voltage inhibition and fault location is isolated into covering device and designs, safety.Power distribution network over-voltage suppresses and fault location is isolated into covering device collection capacitance current of distribution network auto-compensation, Overvoltage suppressing, single-phase earth fault line selection, the functions such as earth fault section indication location and fast isolation are in one, emphasis has solved the unified harmony problem of these functions and has judged high transition resistance single phase ground fault aspect, the difficult problems such as current ubiquitous device sensitivity and accuracy are on the low side, can be widely used in electric power system and coal, iron and steel, metallurgical, the 6kV of the large-scale industrial enterprise such as chemical industry, 10kV and 35kV power distribution network, both be applicable to old power plant, the transformation of transformer station, also can be used for new power plant construction, transformer station, for the safe and reliable operation that guarantees electrical network provides a set of comprehensive solution, improve power supply enterprise's production safety management level, operating efficiency and economic benefit.
This control device realizes that power distribution network over-voltage suppresses and fault location is isolated into all measurements and the control task of covering device automatic tracking and compensating and failure line selection, i.e. the capacitance current of measuring system and regulate the gear of controlling arc suppression coil; The Selected Inspection of single phase ground fault circuit; Line fault indicating device is sent to work order, to complete earth fault deixis.This control device is the core component of these the complete sets of equipment, is equivalent to people's brain, and its reliability and measurement, precise control are most important, if there is problem, will bring serious harm to distribution reliability.This control device is that power distribution network over-voltage suppresses and fault location is isolated into covering device core component, mainly realize all measurements and the control task of this complete sets of equipment automatic tracking and compensating and failure line selection, therefore require this control device sensitivity, accuracy rate high, power measurement with control professional height, safe and reliable, real-time is high, is applicable to the key element such as running environment of distribution system.
Described control device adopts the BF518 processor of ADI company as the main control chip of system, and it integrates protection, measurement, control, telemechanical and the several functions such as communicate by letter.Related control device adopts built-in UC/OS-II real-time embedded operating system, meets quick, the multitask real-time response demand of the complete sets of equipment requirement; Related control device is measured and protection adopts 32 tunnels, 16 bit synchronization sampling A/D converters, and sampling rate is up to 200MSPS; Related control device man-machine interface adopts the full-localized big screen LCD of 640*800, and friendly interface is directly perceived, simple to operate, easy to use.Related control device is supported 32 way switch amount inputs and the output of 32 way switch amounts, and expansion is convenient; Related control device provides abundant communication interface: two-way is supported the 10M/100M self adaptation Ethernet of IEEE1588 agreement, one RS232 interface He Yi road, road RS485 interface, the microprinting of supporting the machine, real time print goes out the relevant information of earth fault, inquiry for the record.
Described analogue collection module comprises 32 road ac analog inputs, transformer isolation module, shaping filter, AD collector, and 32 road ac analogs are inputted successively by sending to master controller after transformer isolation module, shaping filter, AD collector.
Described AD collector adopts AD7606 model.
Described FPGA module adopts XC3S250E.
Described communication module adopts TL16C752B model, and it adopts expansion 2 road serial ports, realizes RS232 or RS485 mode is communicated by letter.
Described network interface module adopts KS8893M model.
Described keyboard interface module adopts ADP5588 model.
Described power module adopts RID-65B and RD-3513 model.
According to after multiple steps practices such as pre-designed, improvement and debugging, this controller for XBD1 type power distribution network over-voltage, suppresses at present and fault location is isolated into covering device, has replaced industrial computer+capture card in the past+signal condition machine; 4U cabinet replaces 8U cabinet, and size reduces 50%; With embedded replacement industrial computer, mechanical rotating part, as hard disk etc., reliability improves; Collection signal condition is collected in one, adopts mother daughter board connector, has reduced the large quantities of connecting lines between collection and signal condition in the past, has improved reliability; Internal hardware is specialty customization, adopts wide temperature chip to be applicable to the harsh running environment of electric power system.Adopt UC/OS-II real-time embedded operating system, meet the complete sets of equipment requirement fast, the requirement of multitask real-time response, cheap.
Accompanying drawing explanation
Fig. 1 is modular structure schematic diagram of the present invention.
Embodiment
As shown in Figure 1, power distribution network over-voltage of the present invention suppresses and fault location isolated controlling device, comprise master controller, analogue collection module, input and output module, communication module, keyboard interface module, LCD display, network interface module, RTC module, memory module, power module, master controller is electrically connected with analogue collection module, input and output module, communication module, interface module, LCD display, network interface module, RTC module, memory module, power module respectively.
Described input and output module comprises switching input module, photoelectric isolation module, switching value output module, photoelectricity/relay isolation module, FPGA module, switching input module is by photoelectric isolation module and FPGA module communication, and switching value output module is by photoelectricity/relay isolation module and FPGA module communication; Input and output circuit, is isolated and is realized electrical isolation and level conversion by photoelectricity, guarantees the anti-interference of system.
Described master controller adopts ADSP-BF518 model, send analog quantity and switch acquisition order, analogue collection module and switching input module send to master controller by the various voltages in circuit, current signal and contactor state information, first master controller judges network operation state according to the algorithm of design, if electrical network normally moves, follow the tracks of in time electric network state, send corresponding control command, in LCD display, show network operation state, timing is uploaded to host computer by the information of collection; If the single-phase instantaneity earth fault of electrical network or disturbance and the single-phase permanent earth fault of electrical network, master controller sends corresponding earth fault processing command, in LCD display, show which kind of ground state, in the machine and to host computer, send and record earth fault information simultaneously, sound and light alarm is informed operating personnel.
Described main controller adopts built-in UC/OS-II real-time embedded operating system, meets quick, the multitask real-time response demand of the complete sets of equipment requirement;
It is Real-Time Clock that described master controller carries the English full name of RTC(, real-time timepiece chip) module, need external 32.768KHz crystal, the original papers such as matching capacitance, backup battery, the most important function of RTC is supplied to the calendar function in 2099.
Described analogue collection module You32 road analog input signal, becomes analog voltage signal after analog input signal input TV/TA, is connected to the input channel of ADC after conditioning, and every ADC is connected with BF518 by a SPORT mouth.
Described analogue collection module comprises 32 road ac analog inputs, transformer isolation module, shaping filter, AD collector, and 32 road ac analogs are inputted successively by sending to master controller after transformer isolation module, shaping filter, AD collector.
Described AD collector adopts AD7606 model, has used altogether four AD7606, and AD7606 is the 8 Channel Synchronous sampling ADC of 16, and sample rate is up to 200kbps, and has the over-sampling performance of 2x-64x.Thereby realize the synchronous acquisition of 32 paths, meet the requirement of power system voltage electric current synchronized sampling, guarantee the consistent of phase place, the amplitude that the satisfied measurement that is grounded route selection principle, capacitance current tracking requires and the requirement of phase place, certainty of measurement is accurate.Thereby for sensitivity and the accuracy of controller provide hardware to guarantee.
Described FPGA module adopts XC3S250E.
Described communication module adopts TL16C752B model, and it adopts expansion 2 road serial ports, realizes RS232 or RS485 mode is communicated by letter, and is connected with mini-printer, realizes embedded real-time automatic printing.
Described network interface module adopts KS8893M model.KS8893M is the Switch of a built-in PHYs of 3-Port10/100, is connected to obtain two 10/100M self adaptation Ethernet interfaces with the EMAC unit of BF518, signal and the outside Ethernet transformer isolation of passing through.
Described keyboard interface module adopts ADP5588 model.Keysheet module adopts a slice I2C interface chip ADP5588, is connected to the TWI interface of BF518, communicates by letter to obtain key assignments by TWI with ADP5588.It is 4*4 that system adopts keyboard matrix.ADP5588 is the keyboard controller of 10 × 8 matrix keyboard scannings, built-in debouncing circuit.Keyboard interrupt, can select Low level effective output or low level pulse output.6 buttons of this controller are: ↓ ↑ ← →; + ,-, ESC, ENTER.Control four indicator lights: operation, ground connection, manual, warning simultaneously;
Described power module adopts RID-65B and RD-3513 model.This two power supply is Taiwan bright latitude G3 series power supply: high reliability, can bear 5G vibrations and 70 ℃ of high workload ring temperature, and full machine uses 105 ℃ of electrolytic capacitor with long service lifes, can bear the input of 300VAC surging and reach 5 seconds, is applicable to being used in more harsh operational environment.Digital power realized by power unit and analog power is separately independently-powered, improves accuracy of measurement, improves interference free performance.
Claims (9)
1. a power distribution network over-voltage suppresses and fault location isolated controlling device, it is characterized in that, comprise master controller, analogue collection module, input and output module, communication module, keyboard interface module, LCD display, network interface module, RTC module, memory module, power module, master controller is electrically connected with analogue collection module, input and output module, communication module, interface module, LCD display, network interface module, RTC module, memory module, power module respectively;
Described input and output module comprises switching input module, photoelectric isolation module, switching value output module, photoelectricity/relay isolation module, FPGA module, switching input module is by photoelectric isolation module and FPGA module communication, and switching value output module is by photoelectricity/relay isolation module and FPGA module communication;
Described master controller sends analog quantity and switch acquisition order, analogue collection module and switching input module send to master controller by the various voltages in circuit, current signal and contactor state information, first master controller judges network operation state according to the algorithm of design, if electrical network normally moves, follow the tracks of in time electric network state, send corresponding control command, show network operation state in LCD display, timing is uploaded to host computer by the information of collection; If the single-phase instantaneity earth fault of electrical network or disturbance and the single-phase permanent earth fault of electrical network, master controller sends corresponding earth fault processing command, in LCD display, show which kind of ground state, in the machine and to host computer, send and record earth fault information simultaneously, sound and light alarm is informed operating personnel.
2. power distribution network over-voltage according to claim 1 suppresses and fault location isolated controlling device, it is characterized in that, described master controller adopts ADSP-BF518 model.
3. power distribution network over-voltage according to claim 1 suppresses and fault location isolated controlling device, it is characterized in that, described analogue collection module comprises 32 road ac analog inputs, transformer isolation module, shaping filter, AD collector, and 32 road ac analogs are inputted successively by sending to master controller after transformer isolation module, shaping filter, AD collector.
4. power distribution network over-voltage according to claim 3 suppresses and fault location isolated controlling device, it is characterized in that, described AD collector adopts AD7606 model.
5. power distribution network over-voltage according to claim 1 suppresses and fault location isolated controlling device, it is characterized in that, described FPGA module adopts XC3S250E.
6. power distribution network over-voltage according to claim 1 suppresses and fault location isolated controlling device, it is characterized in that, described communication module adopts TL16C752B model, and it adopts expansion 2 road serial ports, realizes RS232 or RS485 mode is communicated by letter.
7. power distribution network over-voltage according to claim 1 suppresses and fault location isolated controlling device, it is characterized in that, described network interface module adopts KS8893M model.
8. power distribution network over-voltage according to claim 1 suppresses and fault location isolated controlling device, it is characterized in that, described keyboard interface module adopts ADP5588 model.
9. power distribution network over-voltage according to claim 1 suppresses and fault location isolated controlling device, it is characterized in that, described power module adopts RID-65B and RD-3513 model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310753603.4A CN103746455A (en) | 2013-12-31 | 2013-12-31 | Power distribution network overvoltage suppression and fault positioning isolation control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310753603.4A CN103746455A (en) | 2013-12-31 | 2013-12-31 | Power distribution network overvoltage suppression and fault positioning isolation control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103746455A true CN103746455A (en) | 2014-04-23 |
Family
ID=50503459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310753603.4A Pending CN103746455A (en) | 2013-12-31 | 2013-12-31 | Power distribution network overvoltage suppression and fault positioning isolation control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103746455A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269920A (en) * | 2014-08-07 | 2015-01-07 | 安徽鑫龙电器股份有限公司 | Power distribution network automation monitoring terminal device |
| CN105301451A (en) * | 2015-12-02 | 2016-02-03 | 国网上海市电力公司 | Intelligent feed line control terminal |
| CN106933165A (en) * | 2017-05-05 | 2017-07-07 | 天津市英贝特航天科技有限公司 | Method and equipment for multi-way switching value input and output |
| CN113765225A (en) * | 2021-09-08 | 2021-12-07 | 陕西省地方电力(集团)有限公司西安供电分公司 | Single-phase grounding alarm system and method for power distribution network |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201910615U (en) * | 2011-01-20 | 2011-07-27 | 上海金导电力科技有限公司 | Microcomputer protection device for fault positioning |
| CN202309231U (en) * | 2011-11-05 | 2012-07-04 | 童淮安 | Automatic distribution remote control terminal ftu |
| CN102570600A (en) * | 2010-12-31 | 2012-07-11 | 上海南自科技股份有限公司 | Programmable general protection test control device |
| CN203119456U (en) * | 2013-03-19 | 2013-08-07 | 南京因泰莱配电自动化设备有限公司 | Adaptive feeder protection device based on wavelet decomposition |
| CN203933154U (en) * | 2013-12-31 | 2014-11-05 | 青岛华电高压电气有限公司 | Power distribution network over-voltage suppresses and fault location isolated controlling device |
-
2013
- 2013-12-31 CN CN201310753603.4A patent/CN103746455A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570600A (en) * | 2010-12-31 | 2012-07-11 | 上海南自科技股份有限公司 | Programmable general protection test control device |
| CN201910615U (en) * | 2011-01-20 | 2011-07-27 | 上海金导电力科技有限公司 | Microcomputer protection device for fault positioning |
| CN202309231U (en) * | 2011-11-05 | 2012-07-04 | 童淮安 | Automatic distribution remote control terminal ftu |
| CN203119456U (en) * | 2013-03-19 | 2013-08-07 | 南京因泰莱配电自动化设备有限公司 | Adaptive feeder protection device based on wavelet decomposition |
| CN203933154U (en) * | 2013-12-31 | 2014-11-05 | 青岛华电高压电气有限公司 | Power distribution network over-voltage suppresses and fault location isolated controlling device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269920A (en) * | 2014-08-07 | 2015-01-07 | 安徽鑫龙电器股份有限公司 | Power distribution network automation monitoring terminal device |
| CN105301451A (en) * | 2015-12-02 | 2016-02-03 | 国网上海市电力公司 | Intelligent feed line control terminal |
| CN106933165A (en) * | 2017-05-05 | 2017-07-07 | 天津市英贝特航天科技有限公司 | Method and equipment for multi-way switching value input and output |
| CN113765225A (en) * | 2021-09-08 | 2021-12-07 | 陕西省地方电力(集团)有限公司西安供电分公司 | Single-phase grounding alarm system and method for power distribution network |
| CN113765225B (en) * | 2021-09-08 | 2024-05-03 | 陕西省地方电力(集团)有限公司西安供电分公司 | Single-phase grounding alarm system and method for power distribution network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203445694U (en) | Intelligent feeder terminal unit | |
| CN103746455A (en) | Power distribution network overvoltage suppression and fault positioning isolation control device | |
| CN102437650A (en) | Intelligent electric power distribution system | |
| CN203800700U (en) | Power distribution network monitoring system | |
| CN103117597A (en) | Wind power generation box type transformer intelligent monitoring system and control method thereof | |
| CN202475013U (en) | Intelligent power distribution device | |
| CN203933154U (en) | Power distribution network over-voltage suppresses and fault location isolated controlling device | |
| CN202305704U (en) | Running state monitoring device of zinc oxide arrester | |
| CN111490530A (en) | Leakage protection self-adaptive low-voltage intelligent comprehensive protection device and method | |
| CN204290493U (en) | A kind of power distribution automation detection and control terminal with bluetooth maintenance function | |
| CN202749908U (en) | Power-grid automatic measurement and control terminal device | |
| CN104316114A (en) | Intensive type touch screen intelligent power meter | |
| CN201336565Y (en) | Integrated protector for underground low-voltage feed switch | |
| CN203365569U (en) | Electrical health index prediction device of power distribution cabinet | |
| CN208109927U (en) | A kind of electrical equipment malfunction data logging plant | |
| CN202649795U (en) | A self-healing control terminal system of a power distribution network | |
| CN202929067U (en) | Multipath guide rail type ammeter | |
| CN202475015U (en) | Intelligent terminal for gas insulating switch device | |
| CN202548233U (en) | Intelligent transformer substation testing platform | |
| CN110231523A (en) | A kind of oil-immersed power transformer protection fault wave recording device and method | |
| CN202815495U (en) | Multifunctional marine protection measurement and control device | |
| CN204165591U (en) | Intensive touch-screen intelligent electric instrument | |
| CN202632517U (en) | Intelligent voltage data monitoring concentrator | |
| CN205176224U (en) | Wind turbine generator system trouble information collection system based on F28335DSP | |
| CN204556771U (en) | Small Electric Current Earthing And Routing Device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140423 |