CN104717157A - Optical digital message sending method based on absolute time scale - Google Patents
Optical digital message sending method based on absolute time scale Download PDFInfo
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- CN104717157A CN104717157A CN201510003816.4A CN201510003816A CN104717157A CN 104717157 A CN104717157 A CN 104717157A CN 201510003816 A CN201510003816 A CN 201510003816A CN 104717157 A CN104717157 A CN 104717157A
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The invention relates to an optical digital message sending method based on an absolute time scale. The method is achieved through a relay protection testing device. The relay protection testing device comprises a CPU and a programmable logic device FPGA. The method includes the steps that sampling point data sent by a system and with two absolute time scales are sent to the programmable logic device FPGA, and the sampling point data comprise acquisition moment data and sending moment data; the programmable logic device FPGA stores the received sampling points to a cache region of the FPGA; the programmable logic device FPGA reads the sending moments of all the sampling points in the cache region in each clock period and sends out the sampling points when it is found that the sending moments are larger than the current moment. The method has the advantages that the sampling moments and the sending moments can be adjusted freely according to requirements, the sampling frequency jitter and delay jitter of a plurality of MCUs can be effectively simulated, and the function of the relay protection testing device is greatly expanded.
Description
Technical field
The present invention relates to Electric control technical field of automation, specifically belong to a kind of light based on absolute time mark numeral file transmitting method.
Background technology
Along with the development of China's power industry and the application of new technology, intelligent substation becomes the development trend of future substation, and becomes the important component part in strong intelligent grid, meanwhile, proposes new requirement to the test of novel protective relaying device and IED.Based on the development & application of the digital protective relay tester of DL/T 860 standard to raising relay protection test level, prevent relaying protection and automatic safety device incorrect operation, ensure that electric power netting safe running has important realistic meaning.Want implement device reliable, for the transmission of light numeral message, collection will quick and precisely, and want the using function that can greatly extend relay-protection tester, existing timer mechanism, can not satisfy the demand simultaneously.
Summary of the invention
For the problems referred to above; the invention provides a kind of light based on absolute time mark numeral file transmitting method; adopt the synchronization principles of this absolute time mark; its maximum advantage is exactly that sampling instant and delivery time can arbitrarily adjust as required; effectively can simulate sample frequency shake and the delay jitter of multiple MU, extend the function of relay-protection tester greatly.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of numeral of the light based on absolute time mark file transmitting method, the method is realized by relay-protection tester, described relay-protection tester comprises CPU, programmable logic device FPGA, the method comprises the following steps: the sampling number with two absolute time marks that step one, system send is according to being sent to programmable logic device FPGA, and described sampling number gathers time data and delivery time data according to comprising; The sampled point received is stored in the buffer area of FPGA by step 2, programmable logic device FPGA; Step 3, programmable logic device FPGA each clock cycle read the delivery time of each sampled point in buffering area, when finding that delivery time is more than or equal to current time, are sent by this sampled point.By PCIE bus exchanging data between described programmable logic device FPGA and CPU.Described relay-protection tester also comprises the testing digital module for receiving and dispatching sampling value message and GOOSE message.Described testing digital module has GOOSE transmission delay test function.Described testing digital module can send the GOOSE message of many groups sampling value message of the same type and multiple controll block simultaneously.The method also comprises intelligent switch test, and test intelligent switch is from receiving GOOSE actuating signal to sending the time delay of breaker actuation order, sending the time delay of the hard contact output of tripping operation from fault generation to intelligent switch.Described time delay comprises time delay that the time delay of protection algorism, GOOSE transmit through multistage switches and intelligent switch process and changes into the time delay that hard contact exports.
The present invention adopts technique scheme, compared with prior art, sampling instant of the present invention and delivery time can arbitrarily adjust as required, effectively can simulate sample frequency shake and the delay jitter of multiple MU, extend the function of relay-protection tester greatly; Transmission and the reception parsing that can realize multiple message can send IEC60044-8 (FT3), IEC61850-9-1, IEC61850-9-2 and GOOSE message, possesses the ability receiving and resolve above-mentioned various form message simultaneously, and data graphically shown, and IEC60044-8 (FT3) form message can be resolved.Relay-protection tester has IEC60044-8 (FT3) message sink mouth simultaneously, IEC60044-8 (FT3) message can be resolved, and statistics information wherein, be presented in host computer interface in the mode of data and chart, make to catch IEC60044-8 (FT3) message data more directly perceived; By MMS message Real-time Obtaining protective device point information and throw the soft pressing plate of surrender protection unit, protective device and tester position far away time, improve the time of test configurations and process of the test.
Accompanying drawing explanation
Embodiment
Below by the description to embodiment, the specific embodiment of the present invention is as the effect of the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part and operation principle, manufacturing process and operation using method etc., be described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
A kind of numeral of the light based on absolute time mark file transmitting method, the method is realized by relay-protection tester, described relay-protection tester comprises CPU, programmable logic device FPGA, the method comprises the following steps: the sampling number with two absolute time marks that step one, system send is according to being sent to programmable logic device FPGA, and described sampling number gathers time data and delivery time data according to comprising; The sampled point received is stored in the buffer area of FPGA by step 2, programmable logic device FPGA; Step 3, programmable logic device FPGA each clock cycle read the delivery time of each sampled point in buffering area, when finding that delivery time is more than or equal to current time, are sent by this sampled point.By PCIE bus exchanging data between described programmable logic device FPGA and CPU.Described relay-protection tester also comprises the testing digital module for receiving and dispatching sampling value message and GOOSE message.Described testing digital module has GOOSE transmission delay test function.Described testing digital module can send the GOOSE message of many groups sampling value message of the same type and multiple controll block simultaneously.The method also comprises intelligent switch test, and test intelligent switch is from receiving GOOSE actuating signal to sending the time delay of breaker actuation order, sending the time delay of the hard contact output of tripping operation from fault generation to intelligent switch.Described time delay comprises time delay that the time delay of protection algorism, GOOSE transmit through multistage switches and intelligent switch process and changes into the time delay that hard contact exports.
System is provided with light testing digital module, and this module has transmitting-receiving IEC 60044-8 (FT3), IEC61850-9-1, IEC61850-9-2 sampling value message, sends and accepts GOOSE message, can carry out GOOSE transmission delay test function.
Many groups sampling value message of the same type can also be sent in this module simultaneously, freely can configure the light network interface sending each group of message, the parameters such as the amplitude of each passage, phase place, frequency are set, carry out the multiple message test such as frame losing, incorrect order, obstruction, step-out, false data, there is several data collection template for configuration, can receive and dispatch the GOOSE message of multiple controll block to IEC 61850-9-2 message simultaneously.
Intelligent switch test can test intelligent switch from receiving GOOSE actuating signal to the time delay sending breaker actuation order; also can test and occur to send to intelligent switch the time delay that the hard contact of tripping operation exports from fault, time delay transmit through multistage switches comprising the time delay of protection algorism, GOOSE and intelligent switch process change into the time delay of hard contact output.
Above to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (7)
1., based on a light numeral file transmitting method for absolute time mark, the method is realized by relay-protection tester, and described relay-protection tester comprises CPU, programmable logic device FPGA, and it is characterized in that, the method comprises the following steps:
The sampling number with two absolute time marks that step one, system send is according to being sent to programmable logic device FPGA, and described sampling number gathers time data and delivery time data according to comprising;
The sampled point received is stored in the buffer area of FPGA by step 2, programmable logic device FPGA;
Step 3, programmable logic device FPGA each clock cycle read the delivery time of each sampled point in buffering area, when finding that delivery time is more than or equal to current time, are sent by this sampled point.
2. the numeral of the light based on absolute time mark file transmitting method according to claim 1, is characterized in that: by PCIE bus exchanging data between described programmable logic device FPGA and CPU.
3. the numeral of the light based on absolute time mark file transmitting method according to claim 1, is characterized in that: described relay-protection tester also comprises the testing digital module for receiving and dispatching sampling value message and GOOSE message.
4. the numeral of the light based on absolute time mark file transmitting method according to claim 3, is characterized in that: described testing digital module has GOOSE transmission delay test function.
5. the numeral of the light based on absolute time mark file transmitting method according to claim 3, is characterized in that: described testing digital module can send the GOOSE message of many groups sampling value message of the same type and multiple controll block simultaneously.
6. the numeral of the light based on absolute time mark file transmitting method according to claim 5, it is characterized in that: the method also comprises intelligent switch test, test intelligent switch is from receiving GOOSE actuating signal to sending the time delay of breaker actuation order, sending the time delay of the hard contact output of tripping operation from fault generation to intelligent switch.
7. the light based on absolute time mark according to claim 6 numeral file transmitting method, is characterized in that: described time delay comprises the time delay that time delay that the time delay of protection algorism, GOOSE transmit through multistage switches and intelligent switch process change into the output of hard contact.
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| CN201510003816.4A CN104717157A (en) | 2015-01-06 | 2015-01-06 | Optical digital message sending method based on absolute time scale |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991209A (en) * | 2015-06-19 | 2015-10-21 | 国网天津市电力公司 | Optical digital relay protection testing instrument detection method |
| CN106487714A (en) * | 2015-08-28 | 2017-03-08 | 国网智能电网研究院 | A kind of delay jitter control method and system of the common mouth network of transformer station's common network |
| CN107423027A (en) * | 2017-07-24 | 2017-12-01 | 杭州迪普科技股份有限公司 | A kind of information-reading method of optical module, device and system |
| CN109002030A (en) * | 2018-04-12 | 2018-12-14 | 广东电网有限责任公司 | A kind of flexible direct current protection test method based on FT3 message switch amount station acquisition |
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| EP0940901B1 (en) * | 1998-03-05 | 2006-09-06 | Kabushiki Kaisha Toshiba | Control system, method of protectively controlling electric power system and storage medium storing program code |
| CN103323691A (en) * | 2013-03-13 | 2013-09-25 | 湖北省电力公司电力科学研究院 | Novel, intelligent and multifunctional comprehensive tester and testing method |
| CN103616591A (en) * | 2013-11-27 | 2014-03-05 | 国家电网公司 | Simulation device and method of characters of merging unit of intelligent transformer substation |
| CN203491787U (en) * | 2013-07-18 | 2014-03-19 | 国家电网公司 | System for detecting resolution of intelligent terminal GOOSE |
| CN104065524A (en) * | 2013-03-20 | 2014-09-24 | 贵州电力试验研究院 | GOOSE message performance test method in IEC61850 |
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2015
- 2015-01-06 CN CN201510003816.4A patent/CN104717157A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0940901B1 (en) * | 1998-03-05 | 2006-09-06 | Kabushiki Kaisha Toshiba | Control system, method of protectively controlling electric power system and storage medium storing program code |
| CN103323691A (en) * | 2013-03-13 | 2013-09-25 | 湖北省电力公司电力科学研究院 | Novel, intelligent and multifunctional comprehensive tester and testing method |
| CN104065524A (en) * | 2013-03-20 | 2014-09-24 | 贵州电力试验研究院 | GOOSE message performance test method in IEC61850 |
| CN203491787U (en) * | 2013-07-18 | 2014-03-19 | 国家电网公司 | System for detecting resolution of intelligent terminal GOOSE |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991209A (en) * | 2015-06-19 | 2015-10-21 | 国网天津市电力公司 | Optical digital relay protection testing instrument detection method |
| CN106487714A (en) * | 2015-08-28 | 2017-03-08 | 国网智能电网研究院 | A kind of delay jitter control method and system of the common mouth network of transformer station's common network |
| CN107423027A (en) * | 2017-07-24 | 2017-12-01 | 杭州迪普科技股份有限公司 | A kind of information-reading method of optical module, device and system |
| CN109002030A (en) * | 2018-04-12 | 2018-12-14 | 广东电网有限责任公司 | A kind of flexible direct current protection test method based on FT3 message switch amount station acquisition |
| CN109002030B (en) * | 2018-04-12 | 2023-05-05 | 广东电网有限责任公司 | Flexible direct current protection test method based on FT3 message switching value position acquisition |
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Inventor after: Pan Wenhu Inventor after: Zhang Li Inventor after: Su Zhipeng Inventor after: Wang Peng Inventor after: Xia Youbin Inventor after: Huang Xueqing Inventor after: Song Mingmin Inventor after: Feng Fei Inventor after: Shen Xincun Inventor after: Zhou Qiyang Inventor after: Yu Peng Inventor after: Wang Chao Inventor before: Pan Wenhu Inventor before: Zhang Li Inventor before: Su Zhipeng Inventor before: Wang Peng Inventor before: Xia Youbin Inventor before: Huang Xueqing Inventor before: Song Mingmin Inventor before: Feng Fei Inventor before: Shen Xincun Inventor before: Zhou Qiyang Inventor before: Yu Peng Inventor before: Wang Chao |
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Application publication date: 20150617 |