CN101895152B - Intelligent interface device of digital transformer substation switch - Google Patents
Intelligent interface device of digital transformer substation switch Download PDFInfo
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- CN101895152B CN101895152B CN2010101934621A CN201010193462A CN101895152B CN 101895152 B CN101895152 B CN 101895152B CN 2010101934621 A CN2010101934621 A CN 2010101934621A CN 201010193462 A CN201010193462 A CN 201010193462A CN 101895152 B CN101895152 B CN 101895152B
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Abstract
The invention discloses an intelligent interface device of a digital transformation substation switch, which comprises the following functional plug-ins: an AC sampling board which can be accessed into voltage, current and related direct current component of the switch; a POWER power supply communication board which is accessed into a power supply for realizing network sharing of sampled data, tripping and closing operation and alternate locking of a GOOSE network, communication with a background and a dispatcher and access of the state monitoring quantity of the switch; an I/O board which is used for the access of the traditional switching quantity and the state quantity and the outward control and operation; an OPA operation panel which can realize the control of a tripping and closing coil of the switch and the locking function; and a CPU board which is used for realizing the functions of data calculation, logic judgment, outward communication, liquid crystal communication and the like of the device and simultaneously has the function of a bus backboard, wherein all the boards are inserted in the bus backboard; and a liquid crystal board, wherein the data display of the liquid crystal board is connected with the CPU through a serial port. The device can realize the intelligentization and the digitalization of the switch, reduce the using number of equipment and reduce the cost.
Description
Technical field
The present invention relates to a kind of switch intelligent interface equipment that is applicable to mesolow grade digital transformer substation, belong to the power automation technical field.
Background technology
Along with the continuous popularization of IEC61850 standard and deeply; Digital transformer substation is also more and more; The design of three-decker not only makes the system configuration of whole transformer station more clear; Also provide convenience for the operation maintenance of transformer station simultaneously, these all are based on the all-round construction of the digital transformer substation of IEC61850 standard and popularization favourable support to be provided.
The typical characteristic of digital transformer substation is exactly the transformation of process layer equipment, and concrete manifestation is exactly the use of electronic mutual inductor, merge cells and intelligent operation box.The use of electronic mutual inductor impels the merge cells device to produce, and this device is used for sending the sampling message based on IEC61850-9-1 or IEC61850-9-2 form, so that realize sharing of sampled data.For intelligent operation box; Because domestic current intelligent development process is slow; Therefore the product of through engineering approaches application in the digital transformer substation based on the IEC61850 standard, does not all adopt the mode of intelligent terminal to realize the network trip operation; Reduce the connection that repeats of cable, practice thrift cost.
But for the mesolow transformer station of 35KV grade, because the switchgear cost is relatively low, must use merge cells and intelligent operation box if will realize the digitlization at full station, this has increased construction cost undoubtedly.The protection measure and control device of current mesolow transformer station adopts the mode of installing of disperseing, and directly is installed on switch cubicle, even adopted merge cells and intelligent operation box this moment, also must independent group screen, and the cable that has increased full station connects.
In addition, the current overwhelming majority's mesolow transformer station all is early stage traditional transformer station, and carrying out digital improvement is inexorable trend from now on; If adopt merge cells or intelligent operation box; Full station will have bigger change, need design again and plan that its scale is tantamount to the construction of a new website.This moment will be very favourable to the transformation at tradition station if can on the basis of existing protection observing and controlling, realize the function of digital transformer substation, not only reduce workload, practice thrift cost, also can have performance more reliably simultaneously.
Just be based on the consideration of above-mentioned factor; On the basis of existing dispersion protection measure and control device, carry out upgrading, adopted the better hardware and software platform of performance, developed the intelligent interface device of switch; When realizing original protection observing and controlling function; Can realize the function of merge cells and intelligent operation box, the data that simultaneously can also access state detect are with effectively in the intellectualized reconstruction of mesolow switch and the digitlization upgrade maintenance at full station from now on.
Summary of the invention
Problem to be solved by this invention is that a kind of switch intelligent interface equipment can be provided; Outside the protection that realizes switch, measurement, controlled function; Can also realize the shared and network hop closing operation of sampled data network; Realize intellectuality, the digital improvement of switch, reduce the redundant cable of switch and connect, reduce and build maintenance cost.
For addressing the above problem, the present invention provides a kind of intelligent interface device of digital transformer substation switch, it is characterized in that, comprises following each feature card:
AC sampling plate: be used to insert voltage, the magnitude of current of switch, insert DC quantity simultaneously;
POWER power supply communication board: join with outside 220V power of alterating and direct current, have serial communication port and ethernet interface simultaneously, be used for the implement device correspondence with foreign country;
I/O opens into leaving plate: open into finger and be used for the traditional switching value and the access of quantity of state; Leave and refer to have breaker tripping and closing node, the external control operation of implement device;
OPA (Operate, operation panel) operation panel: be the control power supply of switch or circuit breaker, realize control and locking to switch breaking coil, closing coil;
CPU board: functions such as the data computation of the double-core chip implement device of employing DSP+ARM, logic determines, correspondence with foreign country, liquid crystal communication; Simultaneously as bus backplane; Said AC sampling plate, POWER power supply communication board, I/O open into leaving on plate, OPA (Operate, operation panel) the operation panel insertion CPU board;
Liquid crystal panel: liquid crystal panel independently, there is not access with above-mentioned all plates, be connected with CPU board through serial communication.
The aforementioned switches intelligent interface device is characterized in that: said CPU board is the DAVINCIDM6446 series double-core chip of TI company, and this chip is the combination of DSP+ARM.The ARM dominant frequency reaches 300MHz, and the DSP dominant frequency reaches 600MHz, integration USB 2.0, network interface EMAC MDIO, serial ports UART, SD card, FPGA interface, numerous GPIO interface and VPSS image processing interface.The double-core chip can make and make that also graphical interfaces is more attractive in appearance simultaneously by the efficient more, quick alternately of data, make whole device have higher performance.
Aforesaid intelligent interface device of digital transformer substation switch; It is characterized in that: said CPU board adopts Montavista Linux4.0 operating system; This system is very remarkable at aspects such as network service, graphical display, systematic functions; Double-core chip to TI company has better support simultaneously, and the overall performance of device is got a promotion.
Aforesaid intelligent interface device of digital transformer substation switch is characterized in that: said POWER power supply communication board comprises following each serial communication port:
IRIG-B mouth: realize the sample-synchronous operation, sample counter zero clearing in each pulse arrives;
RS485 serial communication interface, RS232 serial communication interface: be used for the data that the receiving key internal sensor is sent.
Aforesaid intelligent interface device of digital transformer substation switch is characterized in that: said POWER power supply communication board comprises following each network interface:
First network interface: carry out Fu Liye in the conventional mode and calculate, obtain electric current, voltage; Carry out obtaining after remote signalling goes to tremble the value of related switch state, above-mentioned electric current, voltage and on off state value are sent to background monitoring system;
Second network interface: be used to send sampling message, realize sharing of sampled data based on IEC61850-9-1 or IEC61850-9-2 form;
The 3rd network interface and the 4th network interface: redundant each other, be used to realize transmission, the reception of GOOSE signal; Send the on off state amount through the mode of GOOSE, realize that the network of on off state amount is shared; Also through accepting the breaker tripping and closing order that other protective devices send, realize the network hop closing operation simultaneously, cancelled the traditional cable connection, practiced thrift cost;
The 5th network interface: be used to receive the sensor sample signal that sends through the networking.
The aforementioned switches intelligent interface device is characterized in that: the GOOSE functional module receives the breaker tripping and closing order, transmit button state and interval locking information.The hard characteristics of interrupting having delicate level error of DSP; Installing inner GOOSE functional module has no progeny in getting into and handles the GOOSE message immediately in that DSP is each; Interrupt guaranteeing the requirement of network real-time property through the timing of hardware; Remedied the relatively poor defective of linux system real time, the properties of product that effectively improve.
Aforesaid intelligent interface device of digital transformer substation switch is characterized in that: said liquid crystal panel is a color panel, and all data of interface display all are connected with CPU board through the mode of serial communication, does not exist hardware to connect.The liquid crystal interface of device can show actual winding diagram, and concrete winding diagram can carry out flexible configuration through configuration tool, but also flexible configuration of the menu of device, and all data are all obtained through serial communication.
Aforesaid intelligent interface device of digital transformer substation switch is characterized in that: said liquid crystal panel inside sets up the SD card slot that is used to insert outside SD card access fault recorder data.Current employing 256,000,000 SD cards, a large amount of fault recorder datas of storage that can roll, these data carry out sending in the active after also receiving the calling order simultaneously.
It is corresponding with it that the device internal data is set up corresponding logical device and logical node based on the IEC61850 standard, to actual engineering exist but in the IEC61850 standard the special expansion of undefined amount with newly set up corresponding logical node correspondence with it; Install the MMS communication protocol that adopts the IEC61850 standard with communicating by letter of backstage.Whole device is followed the IEC61850 standard fully from the data model to the Communication Realization, the unification and the standardization of the information flow that helps realizing standing entirely.
The beneficial effect that the present invention reached is exactly: switch intelligent interface equipment is installed on the switch cubicle, and mode through network and station level and dispatching party are got in touch.In the protection that realizes switch, measurement, control, with sending on the sampled data, realize that the full station of sampled data is shared through Ethernet; Send and receive breaker tripping and closing operation and the locking at interval that the GOOSE message is realized switch through Ethernet; Insert the state-detection amount of switch, for the status monitoring and the repair and maintenance of switch provides data.This equipment has been realized the intellectuality and the digitizing function of switch on the whole; The sampled data network is shared and the integrated thinking of intelligent operation box can also be adopted by the voltage levels digital transformer substation; Helping reducing cable connects; Reduce the usage quantity of device, reduce the electrical secondary system design flow, reduce engineering construction and maintenance cost.
Description of drawings
Fig. 1 is a switch intelligent interface apparatus structure chart;
Fig. 2 is a switch intelligent interface equipment liquid crystal panel structure sketch map;
Fig. 3 is switch intelligent interface equipment dress power supply communication board structural representation.
Embodiment
This switch intelligent interface equipment whole service can be divided in protection observing and controlling, the sampling give, GOOSE breaker tripping and closing, on off state Monitoring Data insert, five links of liquid crystal display, and are specific as follows:
Protection observing and controlling is meant that the mesolow switch still inserts switch intelligent interface equipment in the conventional mode with voltage, the electric current of circuit; Sample frequency adopts cycle 32 points; Protection sampled voltage electric current is carried out Fu Liye to be calculated; Value of calculating and the value of adjusting are compared, carry out logic determines then, trip or alarm operation.Equipment has the circuit breaker lock function, can avoid the generation of operations staff's misoperation.To measuring handling of electric current and voltage, send to the backstage through first network interface and monitor.
Send in the sampling be meant switch intelligent interface equipment after each DSP sampling with regard to immediately with the processing that packages of these data; Format organization's message according to IEC61850-9-1 or IEC61850-9-2; In same break period, it is sent through second network interface then; Whenever send a bag, sample counter adds 1; To the sample frequency of 32 points/cycle, the scope of counter is between 0-1599.Device is realized the sample-synchronous operation through IRIG-B, sample counter zero clearing in each pulse arrives.
The GOOSE breaker tripping and closing are meant after intelligent interface device receives the GOOSE order carries out export operation.Device inside will be configured in advance.The GOOSE message sends to switch intelligent interface equipment through network; DSP gets into interruption at every turn will obtain the network interface chip status from the status register of corresponding network interface; Seeing if there is the GOOSE message arrives; If have and then read and handle immediately, close a floodgate or trip operation according to configuration in advance.Because switch intelligent interface equipment adopts the sample frequency of 32 points/cycle; DSP gets into 625 microseconds that are spaced apart of hard interruption at every turn like this; Because the message of GOOSE network interface is less relatively, therefore almost not free delay can be satisfied the requirement less than 4 milliseconds transmission delay fully.
The access of on off state data is access, RS232, RS485 and the 5th network interfaces that finger device has been reserved DC quantity, can the status data of switch be collected and gather, and sends to the backstage condition monitoring system together then.Some changes into the DC quantity access through transmitter switch each item state, and some transducer has serial communication interface, can data directly be inserted; Some transducers inserts specific harvester, sends through the networking then, and switch intelligent interface equipment was just reserved corresponding the 5th network interface and carried out Data Receiving this moment.Because it is relatively low that the state-detection real-time property requires, therefore existing mode can satisfy the practice requirement fully.
Liquid crystal display mainly is to be used for device is configured, and can be used for showing simultaneously information such as remote measurement, remote signalling, remote control, logout and device alarm.Can move back protecting definite value and corresponding soft pressing plate to carry out the function throwing.Can also on device, carry out the breaker tripping and closing control of switch simultaneously.Primary connection figure that can display switch on the liquid crystal interface can adjust according to the actual requirements flexibly.
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replacement or the technical scheme that obtained of equivalent transformation mode, all drop within protection scope of the present invention.
Claims (7)
1. an intelligent interface device of digital transformer substation switch is characterized in that, comprises following each feature card:
AC sampling plate: be used to insert voltage, the magnitude of current of switch, insert DC quantity simultaneously;
POWER power supply communication board: join with outside 220V power of alterating and direct current, have serial communication port and ethernet interface simultaneously, be used for the implement device correspondence with foreign country;
I/O opens into leaving plate: open into finger and be used for the traditional switching value and the access of quantity of state; Leave and refer to have breaker tripping and closing node, the external control operation of implement device;
OPA operation panel: be the control power supply of switch or circuit breaker, realize control and locking to switch breaking coil, closing coil;
CPU board: the data computation, logic determines, correspondence with foreign country, the liquid crystal communication function that adopt the double-core chip implement device of DSP+ARM; As bus backplane, said AC sampling plate, POWER power supply communication board, I/O leave plate, the OPA operation panel inserts on the CPU board simultaneously;
Liquid crystal panel: be connected with CPU board through serial communication.
2. intelligent interface device of digital transformer substation switch according to claim 1 is characterized in that: said CPU board is the DAVINCI DM6446 series double-core chip of TI company.
3. intelligent interface device of digital transformer substation switch according to claim 1 is characterized in that: said CPU board adopts Montavista Linux4.0 operating system.
4. according to claim 1 or 2 or 3 described intelligent interface device of digital transformer substation switch, it is characterized in that: said POWER power supply communication board comprises following each serial communication port:
IRIG-B mouth: realize the sample-synchronous operation, sample counter zero clearing in each pulse arrives;
RS485 serial communication interface, RS232 serial communication interface: be used for the data that the receiving key internal sensor is sent.
5. according to claim 1 or 2 or 3 described intelligent interface device of digital transformer substation switch, it is characterized in that: said POWER power supply communication board comprises following each network interface:
First network interface: carry out Fu Liye in the conventional mode and calculate, obtain electric current, voltage; Carry out obtaining after remote signalling goes to tremble the value of related switch state, above-mentioned value is sent to background monitoring system;
Second network interface: be used to send sampling message, realize sharing of sampled data based on IEC61850-9-1 or IEC61850-9-2 form;
The 3rd network interface and the 4th network interface: redundant each other, be used to realize transmission, the reception of GOOSE message; Send the on off state amount through the mode of GOOSE, realize that the network of on off state amount is shared; Also through accepting the breaker tripping and closing order that other protective devices send, realize the network hop closing operation simultaneously;
The 5th network interface: be used to receive the sensor sample signal that sends through the networking.
6. according to claim 1 or 2 or 3 described intelligent interface device of digital transformer substation switch, it is characterized in that: said liquid crystal panel is a color panel, and all data of interface display all are connected with CPU board through the mode of serial communication.
7. according to claim 1 or 2 or 3 described intelligent interface device of digital transformer substation switch, it is characterized in that: said liquid crystal panel inside sets up the SD card slot that is used to insert outside SD card access fault recorder data.
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| CN2010101934621A CN101895152B (en) | 2010-06-07 | 2010-06-07 | Intelligent interface device of digital transformer substation switch |
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| CN2010101934621A CN101895152B (en) | 2010-06-07 | 2010-06-07 | Intelligent interface device of digital transformer substation switch |
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| CN101895152A CN101895152A (en) | 2010-11-24 |
| CN101895152B true CN101895152B (en) | 2012-09-12 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102035258B (en) * | 2010-12-08 | 2012-11-21 | 宁夏电力公司宁东供电局 | Electric power monitoring management system and electric power monitoring management method and communication equipment for transformer substation |
| CN102096997B (en) * | 2010-12-30 | 2013-04-10 | 绍兴电力局 | GOOSE (generic object oriented substation event) logic-based electric energy meter voltage intelligent collecting method and system |
| CN102231568B (en) * | 2011-07-05 | 2014-01-29 | 国电南瑞科技股份有限公司 | Multifunctional intelligent data collecting device |
| CN102280936A (en) * | 2011-07-19 | 2011-12-14 | 天津市电力公司 | Interval process intelligent controller of transformer station |
| CN103200280B (en) * | 2013-02-20 | 2016-09-21 | 中国电力科学研究院 | Transformer station process layer interface equipment |
| CN103338130A (en) * | 2013-06-09 | 2013-10-02 | 辽宁省电力有限公司大连供电公司 | Intelligent transformer substation GOOSE signal instantiation debugging tool |
| CN103984782A (en) * | 2014-06-11 | 2014-08-13 | 国家电网公司 | Transformation equipment big data analysis system based on database technology |
| CN104600848B (en) * | 2015-02-15 | 2017-12-15 | 国家电网公司 | A kind of transformer station process layer virtual secondary equipment and its implementation |
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| US7062359B2 (en) * | 2000-12-29 | 2006-06-13 | Abb Ab | Substation control system |
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| CN101350518A (en) * | 2008-09-05 | 2009-01-21 | 国电南瑞科技股份有限公司 | Method for processing sampling value of digitalization protection test control apparatus |
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Owner name: NARI NANJING CONTROL SYSTEM LTD. Effective date: 20141205 |
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Effective date of registration: 20141205 Address after: High road high tech Development Zone Nanjing city Jiangsu province 210061 No. 20 Patentee after: NARI Technology Development Co., Ltd. Patentee after: SGCC NARI Nanjing Control System Co., Ltd. Address before: High road high tech Development Zone Nanjing city Jiangsu province 210061 No. 20 Patentee before: NARI Technology Development Co., Ltd. |