CN102222980B - Transient wave-recording playback system of series capacitor compensation device or fault current limiter device - Google Patents
Transient wave-recording playback system of series capacitor compensation device or fault current limiter device Download PDFInfo
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- CN102222980B CN102222980B CN201110160526.2A CN201110160526A CN102222980B CN 102222980 B CN102222980 B CN 102222980B CN 201110160526 A CN201110160526 A CN 201110160526A CN 102222980 B CN102222980 B CN 102222980B
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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Abstract
The invention relates to a transient wave-recording playback system of a series capacitor compensation device or a fault current limiter device. The system comprises a transient wave-recording playback card and a transient wave-recording playback managing machine. The transient wave-recording playback card comprises a digital signal processor (DSP), an embedded processor, a communication interface and a wave-recording Ethernet. The DSP and the embedded processor are connected through the communication interface. The embedded processor is connected in the wave-recording Ethernet. An embedded operation system is adopted in the transient wave-recording playback card. The transient wave-recording playback managing machine comprises a transient wave-recording managing machine of a spacing layer and a transient wave-recording managing machine of a station control layer. The transient wave-recording managing machine of the spacing layer and the transient wave-recording managing machine of the station control layer are connected with the wave-recording Ethernet respectively. The system disclosed by the invention has a playback function, a strong communication function and a strong distributive wave-recording and storing function and is in conformity with the implement requirements of the modern digital transformer station. The system can be also used for other flexible alternating-current power transmission devices.
Description
Technical field
The present invention relates to the transient state wave record playback system in electric power system Survey of Flexible AC Transmission System (FACTS) field, be specifically related to a kind of transient state wave record playback system of mending device or fault current limiter device of going here and there.
Background technology
The series capacitor compensation technology of AC transmission system (being called for short string mends) is that power capacitor is series in transmission line of alternation current, the part emotional resistance of compensation transmission line of alternation current, thus reach objects such as increasing circuit transmission capacity, the raising stability of a system, the network loss that reduces, saving investment.In remote, large capacity transmission system, increase along with transmission distance, its conveying capacity is subject to increasing restriction, and string benefit is one of important means addressing this problem, improve ultra-high/extra-high voltage transmission line ability of supplying electric power, there is very huge economic worth, in the electric power system of countries in the world, received at present application widely.
Thyristor controlled series capacitor compensation arrangement (abbreviation controlled series compensation) regulates the equivalent impedance of fundamental frequency of controlled series compensation by changing the Trigger Angle of thyristor, the dynamic control of realization to equivalent impedance of fundamental frequency, thereby can further improve stability of power system, increase the transmission capacity of transmission line, suppress low-frequency oscillation of electric power system and subsynchronous resonance.When ultra-high/extra-high voltage transmission line is short-circuited fault, controlled series compensation proceeds to thyristor bypass series capacitor pattern immediately, can reduce the short circuit current of system, improves the stability of electric power system.
On the other hand, developing rapidly of electric power system, the load in unit and station capacity, substation capacity, city and the center of industry and the continuation of load density increase, and interconnected between electric power system, cause the short circuit current level in modern large power system electrical networks at different levels constantly to increase.Short circuit current exceeds standard becomes one of major issue threatening modern power systems safe operation.Except changing electric network composition, fault current limiter device is to solve short circuit current exceed standard new approaches and the new way of problem.At present, superhigh pressure fault current limiter device is at East China Power Grid 500kV system hanging net operation.
Controlling protection system is the important component part that string is mended device or fault current limiter; its Main Function is: detect in service various to installing disadvantageous failure condition; the relevant protection of correct operation; isolation timely and accurately or excision fault; guarantee the safe and stable operation of string benefit device, and coordinate route protection to carry out other equipment in protection system.In addition, control the functions such as protection system can also realize electrical quantities measurement and gather, monitoring running state, record ripple, man-machine interaction.In string is mended station, can realize supervision and the control to all key equipment states such as bypass breaker, isolation switch, grounding switchs, in dispatching office, can realize the supervision to key equipment state by telecontrol equipment.The capital equipments such as control, protection, supervision are group screen in station control cell; main website (being station level) is located at main control room conventionally; man-machine interface adopts advanced language programming, uses the numerical value of figure display simulation winding diagram, each functional module and collection electric parameters etc.
In string complement system or fault current limiter system running, due to the existence of many X factors, there will be transient state situation, as out-of-limit in current/voltage, frequency out-of-limit, the faults such as protection action or malfunction, switch motion or abnormal.Analyze these faults or abnormal reason often needs to utilize transient state wave recording device.This wave recording device is often called as electric power system " black box ", is undertaking the important task of system failure monitoring and record, and no matter the waveform of recording when breaking down is to on-the-spot inline diagnosis or ex-post analysis, is all very useful firsthand information.Its function comprises the situation of change of block benefit device or each electric parameters of fault current limiter device, transmission, storage and demonstration transient state wave record playback data and related content, and query analysis event of failure and system mode.
At present, other string benefit dresses wait the transient state record wave system system of devices all to have following defect both at home and abroad: the record ripple systemic-function that 1, lacks playback function is very imperfect, and some does not even record wave energy, causes very large difficulty to the work such as operation maintenance and Commissioning Analysis; 2, generally only have independently, transformer station's transient state wave recording device, and there is no the transient state wave recording device of Embedded Distributed Application, make whole record ripple systemic-function powerful not, framework is underaction also; 3, communication function a little less than, can not meet the implementation condition of digital transformer substation and IEC61850 standard; 4, distributed storage function is weak or lack; 5, the data acquisition and processing (DAP) speed of processor and attainable function can not meet growing user's request.
Based on this, in the urgent need to those skilled in the art develop a kind of with playback function, meet distributed wave recording application demand, have stronger communication capacity, meet modern digital transformer station implement to require, with stronger distributed storage function, data-handling capacity is excellent, management function is powerful transient state wave record playback system.This transient state wave record playback system is mended the various operating condition designs of device mainly for string, take into account the requirement of fault current limiter simultaneously, also can be extended to whole flexible AC transmission device.
Summary of the invention
The object of this invention is to provide a kind of powerful with playback function, communication function, meet the transient state wave record playback system that string that modern digital transformer station implements to require, have stronger distributed wave recording and memory function is mended device or fault current limiter device, this system also can be used for other flexible AC transmission device.
The playback function of transient state wave record playback system provided by the invention can be realized actual recorded wave file is carried out to playback, by recorded voltage, the waveform of the electric parameters such as electric current is again passed to control protective unit after conversion, to investigate the action behavior of control protective unit in fault and exception procedure, thereby the fault of finding out and abnormal reason, the record wave energy of transient state wave record playback system comprises the situation of change of each electric parameters of block benefit device or fault current limiter device, transmission, storage and demonstration transient state recorder data and related content, and query analysis event of failure and system mode.
The transient state wave record playback system that string provided by the invention is mended device or fault current limiter device adopts following proposal to be implemented:
Go here and there a transient state wave record playback system of mending device or fault current limiter device, its improvements are, described system comprises transient state wave record playback card and transient state wave record playback supervisor; Described transient state wave record playback card comprises dsp processor, flush bonding processor, communication interface and record ripple Ethernet; Described dsp processor is connected by communication interface with flush bonding processor; Described flush bonding processor is connected in record ripple Ethernet; Described transient state wave record playback card adopts embedded OS; Described transient state wave record playback supervisor comprises wall transient state recording management machine and station level transient state recording management machine; Described wall transient state recording management machine is connected with record ripple Ethernet respectively with station level transient state recording management machine.
A kind of preferred technical scheme provided by the invention is: the input signal of described transient state wave record playback system comes from the intelligent cell of primary equipment or primary equipment, or comes from other record analysis equipment of the historical record of output ripple, emulation and self-defining data; Described equipment is exported to described transient state wave record playback system by wire and the various physical mediums of optical fiber by input signal.
The provided by the invention second preferred technical scheme is: described transient state wave record playback card configures jumbo distributed storage device, and described jumbo distributed storage device is CF card.
The provided by the invention the 3rd preferred technical scheme is: transient state record ripple monitoring software and transient state record ripple software for display are installed on described transient state recording management machine; Described transient state record ripple monitoring software receives the recorded wave file that transient state wave record playback card is uploaded, and manually boots individual system record ripple or broadcast and starts record ripple; The recorded wave file that includes multiple electric parameters and situation of change, system status information that described transient state record ripple software for display is mended device or fault current limiter device to string is checked and analyzes.
The provided by the invention the 4th preferred technical scheme is: the record wave process of described record ripple part comprises following three steps: the ripple of 1. pre-recording: described transient state wave record playback card deposits the analog data receiving and IO data in the ripple buffering area of pre-recording with circular buffer pattern, no matter whether start record ripple; 2. start record ripple, recorded wave file writes FLASH: start after the order of record ripple receiving, DSP starts data to write FLASH recorder data district from pushing away the wave point number of pre-recording before the described ripple district current sampling point of pre-recording, and forms FLASH recorded wave file; 3. described FLASH recorded wave file is uploaded: after record ripple finishes or when idle, inquire about and whether have the recorded wave file of not uploading, if any, the described recorded wave file of not uploading is uploaded to described flush bonding processor side.
The provided by the invention the 5th preferred technical scheme is: the replayed section of described playback section comprises following five steps: 1. FLASH is downloaded and stored into playback of data; 2. start playback, every about 1ms, read FLASH data, and be cached to playback of data district; While 3. starting playback, the data timing of described playback of data buffering area is sent to other board, analog data and IO data in the ripple cyclic buffer of pre-recording described in simultaneously upgrading; 4. start record ripple, recorded wave file writes FLASH; 5. described FLASH recorded wave file is uploaded.
The provided by the invention the 6th preferred technical scheme is: record wave process and the replayed section of described transient state wave record playback card carry out simultaneously.
Compared with prior art, the beneficial effect that the present invention reaches is:
1, string provided by the invention is mended the transient state wave record playback system of device or fault current limiter device, very favourable for work such as system debug, day-to-day operation Maintenance and Repair and failure exception analyses;
2, string provided by the invention is mended the transient state wave record playback system of device or fault current limiter device, adopts control to protect the built-in transient state wave recording device of cabinet, and distributed wave recording is powerful; Can effectively reduce equipment cost.Can also and other independently, the record wave device used of transformer station is used in conjunction with, and can greatly increase the flexibility of record ripple system architecture;
3, string provided by the invention is mended the transient state wave record playback system of device or fault current limiter device, communication function is stronger: transient state wave record playback jig has external ethernet interface, the system configuration that makes its place is more open, flexibly, for the enforcement of digital transformer substation and IEC61850 standard provides necessary condition;
4, string provided by the invention is mended the transient state wave record playback system of device or fault current limiter device, with stronger distributed storage function, even if transient state wave record playback supervisor is not installed, and also can be in a large amount of record of locality storage ripple history data file; Distributed storage is powerful, easy to use;
5, string provided by the invention is mended the transient state wave record playback system of device or fault current limiter device, adopts high performance dsp processor and flush bonding processor, and data processing and managerial ability are superior;
6, dsp processor adopts DSP/BIOS as the real-time oss Software Development Platform of unifying, and there is real-time thread scheduling and communicate by letter, the function of multiple task management and Real-Time Monitoring, program highly versatile, upgrade maintenance is flexible; Flush bonding processor adopts embedded OS, has management function powerful, and peripheral hardware hardware interface and driver are all very abundant, and extensibility is strong, the feature of the powerful maturation of network communicating function.
Accompanying drawing explanation
Fig. 1 is transient state wave record playback card record wave process schematic diagram;
Fig. 2 is transient state wave record playback card replayed section schematic diagram;
Fig. 3 is the transient state wave record playback system construction drawing that string provided by the invention is mended device or fault current limiter device.
Embodiment
Below in conjunction with accompanying drawing, transient state wave record playback system of the present invention is described in further detail.
As shown in Figure 3, Fig. 3 is the transient state wave record playback system construction drawing that string provided by the invention is mended device or fault current limiter device.Transient state wave record playback system of the present invention is comprised of transient state wave record playback card and transient state wave record playback supervisor; Transient state wave record playback card comprises dsp processor, flush bonding processor, communication interface and record ripple Ethernet; Dsp processor is connected by communication interface with flush bonding processor; Flush bonding processor is connected in record ripple Ethernet; Described transient state wave record playback card adopts embedded OS.
Transient state wave record playback card is inserted in wall control protective unit; its record wave energy is as follows: the situation of change of can block mending device or each electric parameters of fault current limiter device; transmit, store transient state recorder data and related content, the initial data of analysis of failure event and system mode is provided.Its playback function can be realized actual recorded wave file is carried out to playback; the waveform of the electric parameters such as recorded voltage, electric current is again passed to protective device after conversion; to investigate the action behavior of protective device in fault and exception procedure, thus the fault of finding out and abnormal reason.Transient state wave record playback jig has external ethernet interface, and the system configuration that makes its place is more open, flexibly, for the enforcement of digital transformer substation and IEC61850 standard provides necessary condition.Transient state wave record playback card configures jumbo distributed storage device, even if transient state wave record playback supervisor is not installed, also can be in a large amount of record of locality storage ripple history data file, and distributed storage is powerful.Recorder data can be stored on local large capacity movable memory device CF card, after taking-up, can on the computer of all installation transient state recording management analysis software, check and analyze.
Transient state wave record playback card moves the outstanding telecommunication management ability of fast and stable, processing time established data treatment characteristic and flush bonding processor and the advantages of rich interface by dsp processor, adopts embedded OS.Have good real-time and applicability, integrated level is high, and distributed function is powerful, can meet the distributed function demand of ever-increasing transient state wave record playback device of current regular period and the demand of acquisition speed.
Transient state wave record playback card relevant configuration situation: dsp processor adopts high operate frequency, high performance float-point compute chip, configuration FLASH is for temporary recorder data, and configuration SRAM is as pre-recording ripple district.Flush bonding processor adopts high operate frequency, high-performance processor, configuration SDRAM and FLASH storage recorder data; Configurable jumbo CF card is for distributed storage recorder data.
Dsp processor program is used DSP/BIOS exploitation, and DSP/BIOS is an easy embedded OS, is mainly for needing Real-Time Scheduling, application synchronous and main frame one goal systems communication and Real-Time Monitoring to design.On DSP/BIOS basis, develop transient state wave record playback program, can debug efficiently real-time application, and DSP/BIOS is implemented in to be proved to be on effective technology, therefore, the transient state wave record playback program good stability creating, software standardization degree is high.
The model of flush bonding processor is PXA270, and flush bonding processor program adopts embedded OS, has management function powerful, and peripheral hardware hardware interface and driver are all very abundant, and extensibility is strong, the feature of the powerful maturation of network communicating function.
Transient state wave record playback supervisor comprises wall transient state recording management machine and station level transient state recording management machine; Described wall transient state recording management machine is connected with record ripple Ethernet respectively with station level transient state recording management machine.Transient state record ripple monitoring software and transient state record ripple software for display are installed on transient state recording management machine, the function of transient state record ripple monitoring software is mainly, receive the recorded wave file that transient state wave record playback card is uploaded, manually boot individual system record ripple or broadcast and start record ripple, the function of transient state record ripple software for display is that the recorded wave file that includes the information such as multiple electric parameters and situation of change, system mode that string is mended to device or fault current limiter device is checked and analyzes.
Below record ripple and the replayed section of transient state wave record playback card are described in further detail:
Record wave process as shown in Figure 1.Record wave process is divided into following 3 steps:
1. whether the ripple of pre-recording: transient state wave record playback card deposits the analog data receiving and IO data in the ripple buffering area of pre-recording with circular buffer pattern, no matter start record ripple;
2. start record ripple, recorded wave file writes FLASH: start after the order of record ripple receiving, DSP starts data to write FLASH recorder data district from pushing away the wave point number of pre-recording before the ripple district current sampling point of pre-recording, and forms FLASH recorded wave file;
3. FLASH recorded wave file is uploaded: after record ripple finishes or when idle, inquire about and whether have the recorded wave file of not uploading, if any, the recorded wave file of not uploading is uploaded to flush bonding processor side.
As shown in Figure 2, replayed section and record wave process carry out replayed section simultaneously, are divided into following 5 steps:
1. FLASH is downloaded and stored into playback of data;
2. start playback, every about 1ms, read FLASH data, and be cached to playback of data district;
While 3. starting playback, the data timing of playback of data buffering area is sent to other board (boards of other functions of device), upgrade analog data and the IO data in the ripple cyclic buffer of pre-recording simultaneously;
4. start record ripple, recorded wave file writes FLASH;
5. FLASH recorded wave file is uploaded.
The transient state wave record playback system of the present embodiment, applicable to all superhigh pressure, extra-high voltage series compensation device or fault current limiter device.
Finally should be noted that: above embodiment is only in order to illustrate that the application's technical scheme is not intended to limit, although the application is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the embodiment of application, and do not depart from any modification of the application's spirit and scope or be equal to replacement, it all should be encompassed in the middle of the application's claim scope.
Claims (2)
1. go here and there a transient state wave record playback system of mending device or fault current limiter device, it is characterized in that, described transient state wave record playback system comprises transient state wave record playback card and transient state wave record playback supervisor; Described transient state wave record playback card comprises dsp processor, flush bonding processor and communication interface; Described dsp processor is connected by communication interface with flush bonding processor; Described flush bonding processor is connected in record ripple Ethernet; Described transient state wave record playback card adopts embedded OS; Described transient state wave record playback supervisor comprises wall transient state recording management machine and station level transient state recording management machine; Described wall transient state recording management machine is connected with record ripple Ethernet respectively with station level transient state recording management machine;
The input signal of described transient state wave record playback system comes from the intelligent cell of primary equipment or primary equipment, or comes from other record analysis equipment of the historical record of output ripple, emulation and self-defining data; The intelligent cell of described primary equipment or primary equipment and other record analysis equipment that come from the historical record of output ripple, emulation and self-defining data are exported to described transient state wave record playback system by wire and optical fiber by input signal;
Described transient state wave record playback card configures jumbo distributed storage device, the data storage card that described jumbo distributed storage device is portable electric appts;
Transient state record ripple monitoring software and transient state record ripple software for display are installed on described transient state recording management machine; Described transient state record ripple monitoring software receives the recorded wave file that transient state wave record playback card is uploaded, and manually boots individual system record ripple or broadcast and starts record ripple; The recorded wave file that includes multiple electric parameters and situation of change, system status information that described transient state record ripple software for display is mended device or fault current limiter device to string is checked and analyzes.
2. string as claimed in claim 1 is mended the transient state wave record playback system of device or fault current limiter device, it is characterized in that, the record wave process of record ripple part comprises following three steps: the ripple of 1. pre-recording: described transient state wave record playback card deposits the analog data receiving and inputoutput data in the ripple buffering area of pre-recording with circular buffer pattern, no matter whether start record ripple; 2. start record ripple, recorded wave file writes FLASH: start after the order of record ripple receiving, dsp processor starts data to write FLASH recorder data district from pushing away the wave point number of pre-recording before the described ripple buffering area current sampling point of pre-recording, and forms FLASH recorded wave file; 3. described FLASH recorded wave file is uploaded: after record ripple finishes or when idle, inquire about and whether have the FLASH recorded wave file of not uploading, if any, the described FLASH recorded wave file of not uploading is uploaded to described flush bonding processor;
The replayed section of playback section comprises following five steps:
fLASH is downloaded and stored into playback of data; 2. start playback, every 1ms, read FLASH data, and be cached to playback of data buffering area; While 3. starting playback, the data timing of described playback of data buffering area is sent to other board, analog data and inputoutput data in the ripple buffering area of pre-recording described in simultaneously upgrading; 4. start record ripple, recorded wave file writes FLASH; 5. described FLASH recorded wave file is uploaded;
Record wave process and the replayed section of described transient state wave record playback card carry out simultaneously.
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| CN201110160526.2A CN102222980B (en) | 2011-06-15 | 2011-06-15 | Transient wave-recording playback system of series capacitor compensation device or fault current limiter device |
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| CN102222980B true CN102222980B (en) | 2014-07-30 |
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| CN102522825B (en) * | 2011-12-27 | 2014-08-27 | 中电普瑞科技有限公司 | Control and protection system for flexible alternating-current power transmission device |
| CN102998571B (en) * | 2012-12-11 | 2016-06-22 | 上海市电力公司 | A kind of RTDS test method of fault current limiter device |
| CN104215878B (en) * | 2014-08-12 | 2017-07-25 | 上海交通大学 | A kind of distribution line fault wave recording device and its failure wave-recording method |
| CN104730401A (en) * | 2015-04-10 | 2015-06-24 | 中国电力科学研究院 | Implementation method for waveform replay of record files of any length based on double-buffered mode |
| CN106530131B (en) * | 2016-11-17 | 2019-06-21 | 南京南瑞继保电气有限公司 | A kind of dynamic realtime recording monitoring method |
| CN112486009B (en) * | 2020-11-20 | 2022-07-19 | 山东山大电力技术股份有限公司 | Time service signal abnormal waveform recording analyzer and method |
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| 周春霞 等.500kV数字化变电站动模试验研究.《电网技术》.2010,第34卷(第6期),193-197. |
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| CN102222980A (en) | 2011-10-19 |
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