CN109490657B - Intelligent wave recording device and data processing method thereof - Google Patents
Intelligent wave recording device and data processing method thereof Download PDFInfo
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- CN109490657B CN109490657B CN201811116395.6A CN201811116395A CN109490657B CN 109490657 B CN109490657 B CN 109490657B CN 201811116395 A CN201811116395 A CN 201811116395A CN 109490657 B CN109490657 B CN 109490657B
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
Abstract
The invention provides an intelligent wave recording device and a data processing method thereof, wherein the intelligent wave recording device comprises an acquisition module, a protocol conversion module and a synchronization module, the acquisition module acquires data of an intelligent substation, the protocol conversion module performs protocol conversion on different types of sampled data, the synchronization module performs synchronous processing on multilink SV and GOOSE messages, and data processing such as wave recording related calculation, analysis and storage is performed after the synchronous processing is completed, so that the actual operation state of the intelligent substation is truly reflected; the software architecture is reasonably designed, the overall planning of the hardware architecture of the device can be guided, the workload of development implementation personnel and testing personnel of the like products is greatly reduced, inheritance and traceability are provided for requirement upgrading and function perfection of later-stage products, and the maximum reutilization of software and hardware platforms of intelligent recording devices suitable for various models of intelligent substations is really realized.
Description
Technical Field
The invention belongs to the technical field of power system automation, and particularly relates to an intelligent wave recording device and a data processing method thereof.
Background
Modern power system collects electricity generation, transformer, transmission of electricity, distribution and power consumption in an organic whole, and the range of involvement is wide, and the component is various, the structure is complicated, along with intelligent substation's rapid development, the electric wire netting scale enlarges by a wide margin, electric wire netting structure complexity also increases day by day, various faults that take place in the power system also become more difficult to diagnose correspondingly, in order to reduce corresponding loss and bring good power consumption environment for the user, this just requires after the power system breaks down, check-out equipment and staff can seek and eliminate the trouble rapidly, resume power system's normal operating rapidly. The fault recorder is generally called as a black box of the power system, when the power system has a fault and oscillates, the fault recorder starts through a built-in criterion and immediately and automatically and accurately records the change conditions of various electrical quantities such as voltage, current, frequency and the like before the fault and in the fault process, and fault recording data is an important basis for analyzing and processing the fault and formulating a prevention and control scheme.
The fault oscillograph of the conventional transformer substation is technically mature, but the fault oscillograph of the conventional transformer substation collects analog quantity signals through hard wiring, the transmission delay of a sampling loop is determined to be negligible by cable transmission characteristics, and the fault oscillograph of the conventional transformer substation directly synchronously collects and processes the signals. In the intelligent substation, the intelligent wave recording device receives SV message signal value data and GOOSE message data from a merging unit or a switch by adopting an optical fiber Ethernet port, because the networking form and the transmission loop length are different, factors such as transmission delay and time sequence uncertainty are inevitably brought by a network transmission mode, so that the internal protocol of the sampled data is not uniform, the sampled data cannot be synchronized, and if the sampled data cannot be synchronized, the operation condition of the intelligent wave recording device cannot be truly reflected by further calculating, analyzing and storing the sampled data by the intelligent wave recording device, so that the different sampled data need to be correspondingly processed to realize the synchronization of the different sampled data.
Disclosure of Invention
The invention aims to provide an intelligent wave recording device and a data processing method thereof, which are used for solving the problem that the operation condition of an intelligent substation cannot be truly reflected because sampling data cannot be synchronized because various sampling data are not correspondingly processed in the prior art.
In order to achieve the above object, the present invention provides a data processing method for an intelligent wave recording device, comprising the following steps:
1) acquiring original data of the intelligent substation, and when the acquired original data are SV message signals and GOOSE message trip signals, not performing protocol conversion; when the acquired original data are a conventional analog cable sampling signal and a GOOSE message signal, converting the conventional analog cable sampling signal into an SV message signal; when original sampling data are a conventional analog cable sampling signal and a conventional switching value cable trip signal, converting the conventional analog cable sampling signal into an SV message signal, and converting the conventional switching value cable signal into a GOOSE message signal;
2) and carrying out synchronous processing on the SV message signal and the GOOSE message signal to obtain data after synchronous processing.
In order to meet the requirements of the intelligent substation wave recording device on the acquisition and processing of data in various sampling modes, standard protocol conversion is carried out on sampling signal input, multilink SV and GOOSE messages are synchronously processed, and after the synchronous processing is finished, data processing such as wave recording related calculation, analysis and storage is carried out, so that the actual running state of the intelligent substation is truly reflected; the software architecture is reasonably designed, the overall planning of the hardware architecture of the device can be guided, the workload of development implementation personnel and testing personnel of the like products is greatly reduced, inheritance and traceability are provided for requirement upgrading and function perfection of later-stage products, and the maximum reutilization of software and hardware platforms of intelligent recording devices suitable for various models of intelligent substations is really realized.
In order to comprehensively reflect the running state of the intelligent substation, when the acquired original data are SV message signals and GOOSE message trip signals, at least four paths of direct current power supply voltage signals need to be acquired, and the direct current power supply voltage signals are converted into SV message signals.
In order to comprehensively reflect the operating state of the intelligent substation, when the acquired original data are a conventional analog cable sampling signal and a GOOSE message trip signal, a conventional switching value signal needs to be acquired, and the conventional switching value signal is converted into the GOOSE message signal.
The invention also provides an intelligent wave recording device which comprises an acquisition module, a protocol conversion module and a synchronization module, wherein the acquisition module is connected with one end of the protocol conversion module, the other end of the protocol conversion module is connected with the synchronization module, the acquisition module is used for acquiring the original data of the intelligent substation, and the protocol conversion module is used for not carrying out protocol conversion when the acquired original data are SV message signals and GOOSE message trip-out signals; when the acquired original data are a conventional analog cable sampling signal and a GOOSE message trip signal, converting the conventional analog cable sampling signal into an SV message signal; when original sampling data are a conventional analog cable sampling signal and a conventional switching value cable trip signal, converting the conventional analog cable sampling signal into an SV message signal, and converting the conventional switching value cable signal into a GOOSE message signal; and the synchronization module is used for performing synchronization processing on the SV message signal and the GOOSE message signal to obtain data after the synchronization processing.
In order to comprehensively reflect the running state of the intelligent substation, the acquisition module comprises a direct current voltage acquisition port, when the acquired original data is an SV message signal and a GOOSE message trip signal, the direct current voltage acquisition port needs to acquire at least four direct current power supply voltage signals, and the protocol conversion module converts the direct current power supply voltage signals into SV message signals.
The sampling module acquires data of the intelligent substation, the protocol conversion module performs protocol conversion on different types of sampled data, the synchronization module performs synchronous processing on multilink SV and GOOSE messages, and data processing such as calculation, analysis and storage related to wave recording is performed after the synchronous processing is completed, so that the actual operation state of the intelligent substation is truly reflected; the software architecture is reasonably designed, the overall planning of the hardware architecture of the device can be guided, the workload of development implementation personnel and testing personnel of the like products is greatly reduced, inheritance and traceability are provided for requirement upgrading and function perfection of later-stage products, and the maximum reutilization of software and hardware platforms of intelligent recording devices suitable for various models of intelligent substations is really realized.
In order to comprehensively reflect the running state of the intelligent substation, the acquisition module comprises a switching value acquisition port, and when the acquired original data is a conventional analog cable sampling signal and a GOOSE message trip signal, the switching value acquisition port needs to acquire a conventional switching value signal and convert the conventional switching value signal into a GOOSE message signal.
In order to reasonably set the number of SV links and the configuration information of the links, when the sampling signal of the conventional analog cable is converted into an SV message signal, the number of the converted SV links and the configuration information of the links are set according to the structure of the analog board card.
In order to reasonably set the number of GOOSE links and configuration information of the GOOSE links, when the trip signal of the conventional switching value cable is converted into a GOOSE message signal, the number of the GOOSE links and the configuration information of the GOOSE links after conversion are set according to the structure of the switching value board card.
Drawings
FIG. 1 is a block diagram of an intelligent recording apparatus suitable for multiple sampling modes;
FIG. 2 is a schematic diagram of a digital input conversion method with SV message signal and GOOSE message trip modes;
FIG. 3 is a schematic diagram of a mixed signal input conversion method with a mode of conventional analog cable sampling and GOOSE message tripping;
fig. 4 is a schematic diagram of a conventional switching value cable trip signal input conversion method with a mode of conventional analog cable sampling.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings:
the invention provides an intelligent wave recording device, which comprises an acquisition module, a protocol conversion module and a synchronization module, wherein the acquisition module is connected with one end of the protocol conversion module, the other end of the protocol conversion module is connected with the synchronization module, the acquisition module is used for acquiring original data of an intelligent substation, and the protocol conversion module is used for not carrying out protocol conversion when the acquired original data are SV message signals and GOOSE message trip signals; when the acquired original data are a conventional analog cable sampling signal and a GOOSE message trip signal, converting the conventional analog cable sampling signal into an SV message signal; when the original sampling data are a conventional analog cable sampling signal and a conventional switching value cable trip signal, converting the conventional analog cable sampling signal into an SV message signal, and converting the conventional switching value cable signal into a GOOSE message signal; and the synchronization module is used for performing synchronization processing on the SV message signal and the GOOSE message signal to obtain data after the synchronization processing.
The data processing method of the intelligent wave recording device based on the intelligent wave recording device comprises the following steps:
1) reading configuration information, and acquiring original data of the intelligent substation according to intelligent wave recording devices of different models;
2) performing corresponding standard protocol conversion according to different sampling modes;
3) after conversion, the Ethernet message format is uniformly adopted to carry out key wave recording data synchronization processing, and the synchronized data can be subjected to wave recording related calculation, analysis and storage and can also be used for network transmission of data in the device or between the devices.
When the sampling mode is SV message signal, GOOSE message trip signal, its original data do not need to carry on the protocol conversion, carry on the data processing directly; when the sampling mode is the mixed signal input of a conventional analog cable sampling signal and a GOOSE message trip signal, the conventional analog cable sampling signal needs to be subjected to standard protocol conversion and converted into an SV message signal; when the sampling mode is that a conventional analog cable sampling signal and a conventional switching value cable tripping signal are input, the conventional analog cable sampling signal and the conventional switching value cable tripping signal need to be subjected to standard protocol conversion respectively and converted into an SV message signal and a GOOSE message signal.
Specifically, the conversion method of the sampling signal of the conventional analog cable comprises the following steps:
the sampling signal of the conventional analog cable is converted into an SV message signal mode, and the number of converted SV links and the configuration information of the links can be reasonably set according to the specific board card structure of the device. The intelligent wave recording device applied in this embodiment supports the insertion of 4 analog quantity board cards, each analog quantity board card can access 24 analog quantity channels, and information acquired by the 4 analog quantity board cards is converted into 4 groups of SVs through a standard protocol.
Specifically, the conversion method of the sampling signal of the conventional switching value cable comprises the following steps:
the trip signal of the conventional switching value cable is converted into a GOOSE message signal, and the number of GOOSE links and the configuration information of the links after conversion can be reasonably set according to the specific board card structure of the device. The intelligent wave recording device applied in this embodiment supports the insertion of 3 switching value boards, each switching value board can be connected to 64 switching value channels, and information collected by the 3 switching value boards is converted into 3 groups of GOOSE through a standard protocol.
Further, as shown in fig. 2, when the mode is digital input of SV message signal and GOOSE message trip signal, the specification requires that there should be no less than four dc power voltage acquisition loops, and the dc power voltage signal should be converted into SV message signal. The intelligent recording device applied in the embodiment adopts a standard protocol to convert acquired direct current information into a group of SV with the address fixed as 0xFF00, the number of channels is 4, the frequency is 4000Hz, the synchronization identifier of the SV is set to be synchronous, and the special SV link after conversion carries out data processing such as data synchronization, calculation, analysis, storage and the like with a directly accessed digital quantity acquisition link.
Further, as shown in fig. 3, when the mode is a mixed signal input of a conventional analog cable sampling signal and a GOOSE message trip, the specification requirement may further have an optional function of acquiring 32 paths of conventional switching values, the wave recording device applied in this embodiment supports to insert 4 analog quantity boards, each analog quantity board may access 24 analog quantity channels, and has 96 paths in total, the 4 analog quantity boards are converted into 4 groups of SVs by a standard protocol, the address is fixed to be 0xFF 01-0 xFF04, the number of channels of each group of SVs is 24, the frequency may be set (maximally supporting 10000Hz), the synchronization identifier of the SVs is set to be "synchronous", and the SV synchronization mode may be fixed to be "networking". A switching value board card can be optionally matched to support 32 switching value channels. The acquired switching value information is converted into a group of GOOSEs with fixed addresses of 0xEF01 through a standard protocol, the number of entries is 32, the type is 'single point', and the converted special SV link performs data processing such as data synchronization, calculation, analysis, storage and the like with a GOOSE acquisition link which is directly accessed.
Further, as shown in fig. 4, when the mode is that a conventional analog cable sampling signal and a conventional switching value cable trip signal are input, the intelligent wave recording device applied in this embodiment supports insertion of 4 analog quantity boards, each analog quantity board can access 24 analog quantity channels, and has 96 channels in total, the 4 analog quantity boards are converted into 4 groups of SVs through a standard protocol, the address is fixed to 0xFF 01-0 xFF04, the number of channels of each group of SVs is 24, the frequency can be set (the maximum supports 10000Hz), the synchronization identifier of the SV is set to "synchronization", and the SV synchronization mode can be fixed to "networking". The wave recording device applied in this embodiment supports the insertion of 3 switching value boards, and each switching value board can be accessed to 64 switching value channels, for a total of 192 channels. The collected switching value information is converted into 3 groups of GOOSEs through a standard protocol, the addresses are fixed to be 0xEF 01-0 xEF03, the number of entries of each group of GOOSEs is 64, and the type of each group of GOOSEs is a single point. And the converted special SV link and GOOSE link perform data processing such as data synchronization, calculation, analysis, storage and the like.
The APPID range of GOOSE is required to be from 0x 0000-0 x3FFF, the APPID range of SV is required to be from 0x 4000-0 x7FFF in the IEC61850 engineering general application model of the intelligent substation, and the standard APPID in the embodiment starts from EF01 and does not conflict with the APPID in the actual engineering. Flexible standard protocol conversion may also be performed in accordance with a specific device design architecture.
Finally, the signals uniformly adopting the Ethernet message format after conversion are subjected to the most critical wave recording data synchronization processing, and the data processing and function realization of wave recording related calculation, analysis, storage and the like can be carried out only on the data subjected to the synchronization processing. The power grid wave recording data is an important basis for evaluating relay protection action and analyzing the fault property and reason of equipment, and provides comprehensive and timely information support for analysis of power grid action and system protection actions.
The specific embodiments are given above, but the present invention is not limited to the above-described embodiments. The basic idea of the present invention lies in the above basic scheme, and it is obvious to those skilled in the art that no creative effort is needed to design various modified models, formulas and parameters according to the teaching of the present invention. Variations, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention, and still fall within the scope of the invention.
Claims (8)
1. A data processing method of an intelligent wave recording device is characterized by comprising the following steps:
1) acquiring original data of the intelligent substation, and when the acquired original data are SV message signals and GOOSE message trip signals, not performing protocol conversion; when the acquired original data are a conventional analog cable sampling signal and a GOOSE message trip signal, converting the conventional analog cable sampling signal into an SV message signal; when the original data is a conventional analog quantity cable sampling signal and a conventional switching value cable tripping signal, converting the conventional analog quantity cable sampling signal into an SV message signal, and converting the conventional switching value cable tripping signal into a GOOSE message tripping signal;
2) and synchronously processing the SV message signal and the GOOSE message trip signal to obtain synchronously processed data.
2. The data processing method of an intelligent wave recording device according to claim 1, characterized in that when the collected original data is SV message signal and GOOSE message trip signal, at least four direct current power voltage signals are collected and converted into SV message signals.
3. The data processing method of an intelligent recorder according to claim 1, wherein when the collected original data is a regular analog cable sampling signal or a GOOSE message trip signal, a regular switching value cable trip signal is collected and converted into a GOOSE message trip signal.
4. An intelligent wave recording device is characterized by comprising an acquisition module, a protocol conversion module and a synchronization module, wherein the acquisition module is connected with one end of the protocol conversion module, the other end of the protocol conversion module is connected with the synchronization module, the acquisition module is used for acquiring original data of an intelligent substation, and the protocol conversion module is used for not carrying out protocol conversion when the acquired original data are SV message signals and GOOSE message trip signals; when the acquired original data are a conventional analog cable sampling signal and a GOOSE message trip signal, converting the conventional analog cable sampling signal into an SV message signal; when the original data is a conventional analog quantity cable sampling signal and a conventional switching value cable tripping signal, converting the conventional analog quantity cable sampling signal into an SV message signal, and converting the conventional switching value cable tripping signal into a GOOSE message tripping signal; and the synchronization module is used for performing synchronous processing on the SV message signal and the GOOSE message trip signal to obtain data after synchronous processing.
5. The intelligent recorder according to claim 4, wherein the collection module comprises a dc voltage collection port, and when the collected raw data is SV message signal or GOOSE message trip signal, the dc voltage collection port further collects at least four dc power voltage signals, and the protocol conversion module converts the dc power voltage signals into SV message signals.
6. The intelligent recorder according to claim 4, wherein the collection module comprises a switch value collection port, and when the collected raw data is a regular analog cable sampling signal or a GOOSE message trip signal, the switch value collection port further collects a regular switch value cable trip signal and converts the regular switch value cable trip signal into a GOOSE message trip signal.
7. The intelligent recorder according to claim 5, wherein when the conventional analog cable sampling signal is converted into an SV message signal, the number of converted SV links and configuration information of the links are set according to the structure of the analog board card.
8. The intelligent recorder according to claim 6, wherein when the trip signal of the conventional switching value cable is converted into the GOOSE message trip signal, the number of GOOSE links and the configuration information of the GOOSE links after conversion are set according to the structure of the switching value board.
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| 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 |
| CN103076539A (en) * | 2012-12-27 | 2013-05-01 | 广西宝恒电子科技有限公司 | Embedded power failure wave recording analysis device |
| CN103199862B (en) * | 2013-02-21 | 2016-06-22 | 四川电力科学研究院 | A kind of method of data synchronization for modulus mixing record ripple |
| CN103323691B (en) * | 2013-03-13 | 2015-07-22 | 湖北省电力公司电力科学研究院 | Novel, intelligent and multifunctional comprehensive tester and testing method |
| CN203519741U (en) * | 2013-09-29 | 2014-04-02 | 航天科工深圳（集团）有限公司 | Fault oscillograph |
| CN103840554B (en) * | 2014-03-04 | 2015-12-30 | 国电南京自动化股份有限公司 | A kind of intelligent substation distributed fault record ripple and network analysis system |
| CN104036070B (en) * | 2014-05-19 | 2017-06-13 | 国家电网公司 | One kind record ripple digitlization back method |
| CN205583851U (en) * | 2016-04-20 | 2016-09-14 | 中国能源建设集团广东省电力设计研究院有限公司 | Intelligent substation's intelligence record affects network analysis system |
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