CN107703397A - Suitable for normal station and the test device for relay protection of digitizing station - Google Patents
Suitable for normal station and the test device for relay protection of digitizing station Download PDFInfo
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- CN107703397A CN107703397A CN201711091802.8A CN201711091802A CN107703397A CN 107703397 A CN107703397 A CN 107703397A CN 201711091802 A CN201711091802 A CN 201711091802A CN 107703397 A CN107703397 A CN 107703397A
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- module
- station
- optical signal
- test device
- relay protection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention relates to a kind of suitable for normal station and the test device for relay protection of digitizing station; module, optical signal modular converter and analog quantity, which are outputed, including signal generating module, optical signal outputs module; wherein signal generating module is outputed module and is connected with optical signal modular converter, analog quantity, and optical signal modular converter is outputed module with optical signal and is connected.Device provided by the invention can produce analog quantity and optical signal and be used for normal station and digitizing station, the defects of overcoming prior art.
Description
Technical field
The present invention relates to transformer station's technical field, more particularly, to it is a kind of suitable for normal station and digitizing station after
Electric protection test device.
Background technology
Also there is various limitations for the utilization of digitizing technique in conventional substation at present.Electrical equipment
Information exchange between secondary device is still by heavy-current control, analog signal transmission and the input of rhabdion point, and switch yard is once
Need to lay substantial amounts of secondary cable between electrical equipment and secondary device, either Electric Design, electric power construction is still run
Safeguard, very big workload all be present；As voltage class improves, protection supervisory equipment etc. increases, and power cable quantity is also anxious
Increase severely plus, the complexity of its cabling, loss of power cable consumptive material etc. be all restrict conventional substation further develop it is important
Factor.As IEEE is proposed and promotes IEC61850 standard agreements, digital transformer substation meets the tendency of, and overcomes disadvantages mentioned above,
Promotion and application are obtained.
System Architecture of Digitized Substation is as shown in Figure 1.
The primary equipments such as its PT, CT, combining unit digitize, and microcomputer protective relay device and measure and control device is greatly facilitated
Digitlization process.The connection of novel secondary equipment and primary equipment based on the design of IEC61850 standards is via the electricity of routine
Power cable connection is changed into fiber optic communication, and standard requires that the electronic mutual inductor of process layer can be by the voltage of primary side, electric current etc.
Analog quantity is converted into digital information, and wall is sent to by communication network.Bay device is mainly realized control and protected
Protective function, and realize that the control locking of correlation and the human-computer interaction function of bay level information, bay device can pass through wall
The mutual dialogue mechanism of equipment room is realized in communication.Substation level complete to bay device in station, primary equipment control and with it is remote
The function of square control centre, engineer station and man-machine interface communication.
From the aforegoing it can be seen that the input signal needed for conventional substation protective relaying device is analog quantity, and digitizes and become
Input signal in power station needed for digital relay protection device is digital quantity, applied to wall and process layer, realize this two
The detection of interlayer equipment, therefore conventional test device for relay protection is no longer applicable.In addition digitizing station and conventional station equipment are total to
Send one's regards to that topic is more notable, a set of test device for relay protection suitable for normal station and digitizing station urgently proposes.
The content of the invention
The present invention is the disadvantages described above for solving prior art, there is provided a kind of relay suitable for normal station and digitizing station
Protection tester.
To realize above goal of the invention, the technical scheme of use is：
Suitable for normal station and the test device for relay protection of digitizing station, including signal generating module, optical signal output module,
Optical signal modular converter and analog quantity output module, and wherein signal generating module outputs mould with optical signal modular converter, analog quantity
Block connects, and optical signal modular converter is outputed module with optical signal and is connected.
When carrying out conventional substation protective relaying device regular inspection using device provided by the invention, signal generating module produces
Analog quantity be conveyed directly to analog quantity and output module to be exported, the Current Voltage analog quantity required for exporting is to relay protection
Device；When being digitized protective relaying device regular inspection, optical signal modular converter is to analog quantity caused by signal generating module
Digital conversion and opto-electronic conversion are carried out, corresponding optical signal is exported and outputs module to optical signal, optical signal outputs module again by light
Signal output is to digital relay protection device.
Preferably, the signal generating module include interface module, control module, CPLD logic module, digital analog converter,
Low-pass filtering module, variable connector, wherein interface module pass sequentially through control module, CPLD logic module, digital analog converter, low
Pass filtering module, variable connector and optical signal modular converter, analog quantity output module connection.The interface module of signal generating module
For receiving the semaphore of input, then the semaphore of reception is transmitted to control module, control module is again by the signal of reception
Amount, which is transmitted to CPLD logic module, carries out serial and concurrent conversion, completes converted signals amount by digital analog converter, low pass
After filtration module carries out digital-to-analogue conversion and LPF, power amplification is carried out by variable connector, small signal simulation amount is amplified
To the various combined-voltage current signals required for conventional substation protective relaying device, and input to optical signal modulus of conversion
Block, analog quantity output module.
Preferably, the control module includes TMS320F2812 chips.
Preferably, the TMS320F2812 chips are connected with a clock generator.
Preferably, the interface module is CAN serial ports, RS485 serial ports or RS232 serial ports.
Preferably, the optical signal modular converter includes A/D modular converters, master controller and data processing module, wherein
A/D modular converters are connected with signal generating module, and A/D modular converters are connected with data processing module, data processing module and master
Controller connects, and data processing module is outputed module with optical signal and is connected.Wherein A/D modular converters are used for the analog quantity to input
Analog-to-digital conversion is carried out, then obtained digital quantity is transmitted to data processing module, data processing module obtains after carrying out opto-electronic conversion
To optical signal, then obtained optical signal transmission to optical signal is outputed into module and exported.Master controller is used to operate to more than
Process is controlled.
Preferably, the master controller selects 32 8-digit microcontroller AT91RM9200, and data processing module selects FPGA cores
Piece.
Preferably, the optical signal modular converter also includes at memory module, memory module and master controller and data
Manage module connection.
Preferably, the memory module is made up of SDRAM, FLASH and EEPROM.
Preferably, the optical signal modular converter also includes synchronizing generator, optical-electrical converter, and synchronizing generator passes through
Optical-electrical converter is connected with master controller.
Compared with prior art, the beneficial effects of the invention are as follows：
Device provided by the invention can produce analog quantity and optical signal and be used for normal station and digitizing station, overcome existing skill
The defects of art.
Brief description of the drawings
Fig. 1 is the structural representation of digitizing station.
Fig. 2 is the structural representation of device.
Fig. 3 is the structural representation of signal generating module.
Fig. 4 is the structural representation of optical signal modular converter.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；
Below in conjunction with drawings and examples, the present invention is further elaborated.
Embodiment 1
As shown in Fig. 2 believe suitable for normal station and the test device for relay protection of digitizing station, including signal generating module, light
Number output module, optical signal modular converter and analog quantity and output module, wherein signal generating module and optical signal modular converter, mould
Analog quantity outputs module connection, and optical signal modular converter is outputed module with optical signal and is connected.
When carrying out conventional substation protective relaying device regular inspection using device provided by the invention, signal generating module produces
Analog quantity be conveyed directly to analog quantity and output module to be exported, the Current Voltage analog quantity required for exporting is to relay protection
Device；When being digitized protective relaying device regular inspection, optical signal modular converter is to analog quantity caused by signal generating module
Digital conversion and opto-electronic conversion are carried out, corresponding optical signal is exported and outputs module to optical signal, optical signal outputs module again by light
Signal output is to digital relay protection device.
In specific implementation process, as shown in figure 3, the signal generating module include interface module, control module,
CPLD logic module, digital analog converter, low-pass filtering module, variable connector, wherein interface module pass sequentially through control module,
CPLD logic module, digital analog converter, low-pass filtering module, variable connector and optical signal modular converter, analog quantity output module
Connection.The interface module of signal generating module is used for the semaphore for receiving input, then transmits the semaphore of reception to control
The semaphore of reception is transmitted to CPLD logic module carry out serial and concurrent conversion again by module, control module, completes conversion
Semaphore is carried out after digital analog converter, low-pass filtering module carry out digital-to-analogue conversion and LPF by variable connector afterwards
Power amplification, various alterating and direct current current voltages small signal simulation amount being amplified to required for conventional substation protective relaying device
Signal, and input to optical signal modular converter, analog quantity and output module.
In specific implementation process, the control module includes TMS320F2812 chips.
In specific implementation process, it is contemplated that the working frequency of TMS320F2812 chips is very high, in order to reduce clock
High-frequency noise disturbs, and improves systematic entirety energy, is generally desirable for the relatively low external reference clock source of frequency again, therefore
A specific clock generator is provided, the clock generator is connected with TMS320F2812 chips.Generator is that an outside can
Change the clock generator of frequency, user can control the clock of the clock generator by editing parameter as needed, while can lead to
The frequency multiplication for the phaselocked loop crossed in TMS320F2812 chips obtains stable required frequency.
In specific implementation process, the interface module is CAN serial ports, RS485 serial ports or RS232 serial ports.
In specific implementation process, as shown in figure 4, the optical signal modular converter includes A/D modular converters, main control
Device and data processing module, wherein A/D modular converters are connected with signal generating module, A/D modular converters and data processing module
Connection, data processing module are connected with master controller, and data processing module is outputed module with optical signal and is connected.Wherein A/D is changed
Module is used to carry out the analog quantity of input analog-to-digital conversion, then obtained digital quantity is transmitted to data processing module, at data
Reason module obtains optical signal after carrying out opto-electronic conversion, then obtained optical signal transmission to optical signal is outputed into module and exported.
Master controller is used to be controlled above operating process.
In specific implementation process, the master controller selects 32 8-digit microcontroller AT91RM9200, data processing mould
Block selects fpga chip.
In specific implementation process, the optical signal modular converter also includes memory module, memory module and master control
Device processed connects with data processing module.
In specific implementation process, the memory module is made up of SDRAM, FLASH and EEPROM.In the present embodiment,
32bits high speed data bus is formed using 2 64Mbits SDRAM, program code during for putting plant running and each
Kind data.In order to improve the hit rate of the speed of service of program and AT91 RM9200 streamlines, after system initialization, institute
There is program code to be all copied into SDRAM to run；2 32Mbits FLASH, 1 is used for cure applications program and embedded
Operating system code, 1 is used to deposit event information and recorder data；1 256Kbits EEPROM is used to deposit configuration ginseng
Number.
In specific implementation process, the optical signal modular converter also includes synchronizing generator, optical-electrical converter, together
Step generator is connected by optical-electrical converter with master controller.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (10)
1. suitable for normal station and the test device for relay protection of digitizing station, it is characterised in that：Including signal generating module, light
Signal outputs module, optical signal modular converter and analog quantity and outputs module, wherein signal generating module and optical signal modular converter,
Analog quantity outputs module connection, and optical signal modular converter is outputed module with optical signal and is connected.
It is 2. according to claim 1 suitable for normal station and the test device for relay protection of digitizing station, it is characterised in that：
The signal generating module includes interface module, control module, CPLD logic module, digital analog converter, low-pass filtering module, more
Way switch, wherein interface module pass sequentially through control module, CPLD logic module, digital analog converter, low-pass filtering module and light
Signal conversion module, analog quantity output module connection.
It is 3. according to claim 2 suitable for normal station and the test device for relay protection of digitizing station, it is characterised in that：
The control module includes TMS320F2812 chips.
It is 4. according to claim 3 suitable for normal station and the test device for relay protection of digitizing station, it is characterised in that：
The TMS320F2812 chips are connected with a clock generator.
It is 5. according to claim 2 suitable for normal station and the test device for relay protection of digitizing station, it is characterised in that：
The interface module is CAN serial ports, RS485 serial ports or RS232 serial ports.
It is 6. according to claim 1 suitable for normal station and the test device for relay protection of digitizing station, it is characterised in that：
The optical signal modular converter includes A/D modular converters, master controller and data processing module, wherein A/D modular converters and letter
Number module connection occurs, A/D modular converters are connected with data processing module, and data processing module is connected with master controller, data
Processing module is outputed module with optical signal and is connected.
It is 7. according to claim 6 suitable for normal station and the test device for relay protection of digitizing station, it is characterised in that：
The master controller selects 32 8-digit microcontroller AT91RM9200, and data processing module selects fpga chip.
It is 8. according to claim 6 suitable for normal station and the test device for relay protection of digitizing station, it is characterised in that：
The optical signal modular converter also includes memory module, and memory module is connected with master controller and data processing module.
It is 9. according to claim 8 suitable for normal station and the test device for relay protection of digitizing station, it is characterised in that：
The memory module is made up of SDRAM, FLASH and EEPROM.
10. according to claim 6 exist suitable for normal station and the test device for relay protection of digitizing station, its feature
In：The optical signal modular converter also includes synchronizing generator, optical-electrical converter, synchronizing generator by optical-electrical converter with
Master controller connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091802.8A CN107703397A (en) | 2017-11-08 | 2017-11-08 | Suitable for normal station and the test device for relay protection of digitizing station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091802.8A CN107703397A (en) | 2017-11-08 | 2017-11-08 | Suitable for normal station and the test device for relay protection of digitizing station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107703397A true CN107703397A (en) | 2018-02-16 |
Family
ID=61179877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711091802.8A Pending CN107703397A (en) | 2017-11-08 | 2017-11-08 | Suitable for normal station and the test device for relay protection of digitizing station |
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| CN (1) | CN107703397A (en) |
Citations (6)
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|---|---|---|---|---|
| CN101252281A (en) * | 2008-02-28 | 2008-08-27 | 国电南瑞科技股份有限公司 | Method and system for testing electric voltage reactive-load integrated control functions |
| CN102323502A (en) * | 2011-08-03 | 2012-01-18 | 上海毅昊自动化有限公司 | The line closed loop test macro and the method for testing thereof that are used for relay protection |
| CN202948080U (en) * | 2012-09-06 | 2013-05-22 | 湖南省湘电试研技术有限公司 | Relay protection test signal conversion apparatus of intelligent transformer station |
| CN103675557A (en) * | 2013-12-27 | 2014-03-26 | 哈尔滨理大晟源科技开发有限公司 | Microprocessor-based relay protection testing device |
| CN103746304A (en) * | 2013-12-25 | 2014-04-23 | 长园深瑞继保自动化有限公司 | Reconstruction method of intelligent transformer station |
| CN207366671U (en) * | 2017-11-08 | 2018-05-15 | 广东电网有限责任公司中山供电局 | Suitable for normal station and the test device for relay protection of digitizing station |
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2017
- 2017-11-08 CN CN201711091802.8A patent/CN107703397A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252281A (en) * | 2008-02-28 | 2008-08-27 | 国电南瑞科技股份有限公司 | Method and system for testing electric voltage reactive-load integrated control functions |
| CN102323502A (en) * | 2011-08-03 | 2012-01-18 | 上海毅昊自动化有限公司 | The line closed loop test macro and the method for testing thereof that are used for relay protection |
| CN202948080U (en) * | 2012-09-06 | 2013-05-22 | 湖南省湘电试研技术有限公司 | Relay protection test signal conversion apparatus of intelligent transformer station |
| CN103746304A (en) * | 2013-12-25 | 2014-04-23 | 长园深瑞继保自动化有限公司 | Reconstruction method of intelligent transformer station |
| CN103675557A (en) * | 2013-12-27 | 2014-03-26 | 哈尔滨理大晟源科技开发有限公司 | Microprocessor-based relay protection testing device |
| CN207366671U (en) * | 2017-11-08 | 2018-05-15 | 广东电网有限责任公司中山供电局 | Suitable for normal station and the test device for relay protection of digitizing station |
Non-Patent Citations (2)
| Title |
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| 陈铸华 等: "微机型继电保护测试装置监控***的研制", 电力***保护与控制, vol. 37, no. 21, pages 90 - 94 * |
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