CN204422718U - A kind of substation relay protection test macro - Google Patents
A kind of substation relay protection test macro Download PDFInfo
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- CN204422718U CN204422718U CN201520006792.3U CN201520006792U CN204422718U CN 204422718 U CN204422718 U CN 204422718U CN 201520006792 U CN201520006792 U CN 201520006792U CN 204422718 U CN204422718 U CN 204422718U
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Abstract
The utility model relates to a kind of substation relay protection test macro; belong to Electric control technical field of automation; this system comprises upper computer module and slave computer module; described lower computer system comprises control module, programmable logic device (PLD), communication unit and interface circuit; described slave computer is communicated with host computer by communication unit; described control module is connected by PCIE bus with programmable logic device (PLD), and described interface circuit is connected with programmable logic device (PLD).In the utility model, 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; improve relay protection test level, prevent relay protection and automatic safety device incorrect operation.
Description
Technical field
The utility model relates to Electric control technical field of automation, specifically belongs to intelligent substation relay protection test system.
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 relay protection and automatic safety device incorrect operation, ensure that electric power netting safe running has important realistic meaning.
Summary of the invention
For the problems referred to above; the purpose of this utility model there is provided a kind of intelligent substation relay protection test system; improve relay protection test level, prevent relay protection and automatic safety device incorrect operation, ensure that electric power netting safe running has important realistic meaning.
The technical solution adopted in the utility model is as follows: a kind of substation relay protection test macro; comprise upper computer module and slave computer module; described upper computer module comprises control module, programmable logic device (PLD), communication unit and interface circuit; described slave computer module is communicated with host computer by communication unit; described control module is connected by PCIE bus with programmable logic device (PLD), and described interface circuit is connected with programmable logic device (PLD).Described upper computer module comprise light testing digital module, status switch module, total group test module, harmonic test module, alternation slippage module, time response module, route protection module, impedance boundary module, differential tentative module, side by side the same period module, low all low-voltage load sheding modules, recurrence of failure module, shaking test module.Described smooth testing digital module for receiving and dispatching sampling value message, GOOSE message, and can carry out the test of GOOSE transmission delay.Described differential tentative module is used for ratio brake boundary search, ratio brake fixed test and harmonic braking boundary search.Described status switch module can arrange 50 states, causes state to switch and triggers by time triggered, intake triggering, manual triggers or GPS.Described alternation slippage module simulation one is pressed step change or is pressed the process of slippage change, for testing working value, rreturn value, the locking value of protective device.Described same period arranged side by side, module was for testing the working value of the voltage of synchronous device, frequency, angle, and the locking value of voltage, frequency, lead angle and leading time, at electric zero point, complete voltage, frequency Pulse Width test.Described interface circuit comprise fiber optic Ethernet transceiver interface, light serial ports transceiver interface, the hard contact interface of switching value, signal mode analog quantity interface, pair time signaling interface.When described pair, signaling interface provides IRIG-B/PPS light serial ports to input.Described fiber optic Ethernet transceiver interface has eight.
Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can realize multiple message transmission and receive parsing 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.This device has IEC60044-8 (FT3) message sink mouth, 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; There is the abnormal emulation of network and message and pass through software emulation; frame losing, incorrect order, step-out, network congestion, false data can be carried out, put quality position invalid, put multiple network and the message simulation tests such as synchronization bit step-out; pass judgment on protective device performance under various abnormal conditions; whether the behavior of verification protection act is consistent with its design concept; when avoiding above-mentioned situation occurs in actual motion, protective device generation malfunction or tripping.
Have abundant data statistics, provide the multiple charts such as oscillogram, sequential chart, phasor graph, sequence spirogram, harmonic-analysis schedule, family curve, test curve, real-time follow-up test progress, controls Test Information, intuitively succinctly at any time.Customizable perfect test report, every test result is all retained, and test result data is preserved complete.Test report can export by graph mode, report content user customizable.
When complete pair, interface provides 1 IRIG-B/PPS light serial ports input, and signal during accessible IRIG-B or PPS couple, is less than 1us with GPS synchronous clock synchronous error.Mode when supporting to meet the network pair of IEEE1588 standard, make device pair time mode more diversified, more meet the demand of future digital substation data transmission network.
Nearly 8 light network interfaces are provided; one is had to the protective device of the transformer of 4 branches; primary connection can be realized, once configure and namely complete transformer differential characteristic test; the definite value of line and protective device need not be changed in test process; process of the test is carried out automatically; only need single job to complete, greatly improve the efficiency of the differential test in the many sides of transformer.
Achieve meet 61850 communication protocols data set, the service of definite value group, report services, control service, file service.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.
The transmission of light numeral message is no longer based on traditional timer mechanism, but based on absolute time mark mechanism.Each sampled point that tester sends, with two absolute time marks, indicates sampling instant and the delivery time of this sampled point respectively, and wherein, sampling instant is used to indicate when calculating sampling value, and delivery time is used for indicating this sampled point and when sends.The transmission of sampled point is by FPGA hardware implementing, this sampled point is first cached in the buffer area of FPGA, FPGA each clock period can compare the delivery time of sampled point and the value of current time in buffer zone, when finding that delivery time is more than or equal to current time, is sent by this sampled point.
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.
Adopt XML as the carrier of intercommunication, exchanges data.Due to XML meta-language characteristic and structurized feature, without the need to doing excessive data process (as syllable sequence problem) according to different software and hardware platform, XML language is by defined label data of description structure and meaning, it has structures, easy reading and writing, there is powerful extensibility and self-describing simultaneously, between network, exchange process for realizing data, storage provides carrier the most easily.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the utility model Upper system;
Fig. 2 is the principle schematic of the next system of the utility model.
Embodiment
See accompanying drawing, intelligent substation relay protection test system, be made up of master system and lower computer system two parts, described master system provides man-machine interface, realizes test configurations, experiment process control, test progress and state display, test result analysis and generates test report; Lower computer system is made up of PowerPC+FPGA+VxWorks embedded system and multiple peripheral interface circuit, completes real-time calculating and the input and output of test figure; Described interface circuit comprise fiber optic Ethernet transceiver interface, light serial ports transceiver interface, the hard contact interface of switching value, small signal simulation amount interface, various pairs time signaling interface.Communicated or WiFi communication by Ethernet interface between master system with lower computer system.Communication mode between CPU communicates with master system has two kinds, is 10/100M electricity ethernet communication and WiFi communication respectively, thus can supports mobile device, as notebook and panel computer etc.Meanwhile, lower computer system also provides a 10/100M electricity Ethernet, can exchange information, extend the function of relay-protection tester by MMS message and tested device.Described lower computer system is made up of CPU, programmable logic device (PLD) FPGA, various interface circuit and other peripheral chip; by PCIE bus exchanging data between FPGA and CPU; bandwidth is up to 4G bits/s; being highly suitable for intelligent substation relay-protection tester this needs transmits the application scenario of mass data, and described FPGA mainly completes exchanges data between various interface circuit and CPU, the process of hardware markers, digital message transmitting time control.Described CPU runs VxWorks system, mainly completes that test figure calculates in real time, various data and message generate with receive and dispatch, experiment process controls, pair time communicate and tested device communication role with master system with timing.Described master system provides 13 test modules: light digital test, status switch, total group test, harmonic test, alternation slippage, time response, route protection, impedance boundary, differential test, the side by side same period, low all low-voltage load sheding, recurrence of failure, shaking test, each tentative module can open dynamic recording oscillography function.Each test module completes one or more similar tests respectively, can insert the tentative module of any kind and quantity in engineering.
Light testing digital module has following functions: transmitting-receiving IEC 60044-8(FT3), IEC 61850-9-1, IEC61850-9-2 sampling value message, send and accept GOOSE message, the test of GOOSE transmission delay can be carried out.
Many groups sampling value message of the same type can 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.
Status switch module can arrange at most 50 states, and the condition causing state to switch can be set to time triggered, intake triggering, manual triggers and GPS and trigger.The oscillogram of all states can be shown, and can comprehensive test assessment be carried out.Input mode has any input, according to the order of sequence amount input and by power input with by short trouble mode input, short trouble computation model has that Zs is constant, voltage constant or current constant.
Four amounts of outputing can control separately, can arrange initial state, provide three kinds of displacement modes: do not reset and invariant position after reset after displacement, displacement.Initial time and the displacement duration of displacement all can be arranged, and minimum resolution is 1ms.
The states such as total group test module is used for before transmission line simulation fault, fault, tripping, coincidence and jumping forever, to test the action situation of protective device under each state.The stackable aperiodic component of fault case, selects any switching angle or fixing switching angle.Can add evolved fault after a failure or after overlapping, fault initial time can be arranged, and fault type comprises single-phase earthing, two-phase phase fault, two phase ground and three phase short circuit fault, and computation model has that Zs is constant, voltage constant and current constant pattern.
Alternation, slippage module can simulate one by step change or the process by slippage change, for testing working value, rreturn value, the locking value of protective device.Can arrange 2 variablees in process of the test, variable may be selected to be phase voltage, line voltage, phase current, power, impedance, angle of impedance, and single pass test and bidirectional experimental are supported in test.
Harmonic test module at output direct current, while first-harmonic, stackable 2 ~ 63 subharmonic.Two variable quantities can be set, change the output valve of a road voltage and a road electric current simultaneously, variation pattern optional " begin-eventually " and " beginning-eventually-beginning ".Stacked system can select famous value to superpose and number percent superposes, the output valve that a passage can be set as monitoring variable, to monitor the real effective of this passage, first-harmonic, direct current and each harmonic value.
Time response module provides I-t characteristic, U-t characteristic and U/f-t characteristic test.Family curve comprises: common inverse time lag, very inverse time lag, super inverse time lag, thermal overload (without storing) inverse time lag, thermal overload (having storage) inverse time lag, also support two kinds of general inverse time lags and self-defined inverse time lag.Test also can arrange 8 additional testing points, compares the specified point of care with test subscriber.In the family curve page, graphically the action situation of display characteristic curve and test point, lists setting time and elapsed time in the form of a list.
Route protection module can measuring distance protection, zero-sequencedirectional protection and negative phase-sequence overcurrent protection, test event comprises indoor test, fixed value checking, working value test, rreturn value test; Can arrange impedance ground and phase to phase impedance, often kind of impedance can arrange four sections of resistance values and four sections of corresponding time delays; Stackable aperiodic component, selects any switching angle or fixing switching angle.Fault type comprises single-phase, two-phase and three-phase fault.In four sections of impedances, every section can arrange at most four monitoring points.
Impedance boundary module can adopt mode that is unidirectional or bilateral scanning to search for impedance protection trip boundary, and borderline properties can be set to circle characteristic, quadrilateral characteristics and linear characteristic.Stackable aperiodic component, can select fixing and any switching angle.In impedance diagram interface, current properties curve can be shown.In process of the test, current test point and operating point all can mark in the drawings, and refresh in real time with process of the test, facilitate customer analysis and the grasp to experimentation.
Differential tentative module can carry out ratio brake boundary search, ratio brake fixed test and harmonic braking boundary search, provides three kinds of relay testing models such as generator protection, tranformer protection and G-T protective.Way of search has unidirectional search and bidirectional research, in the family curve page, can show protection seting curve, current test point and operating point, facilitates user to check and analyze current test state and test findings.This module for testing low week, low-voltage load sheding device, can test action value, actuation time, df/dt locking value, dv/dt locking value, low-voltage lockout value and low current locking value.User only need arrange initial value, stop value, change step and judge intake displacement mode, and device will complete test automatically, and shows test findings.
Same period arranged side by side, module was for testing the working value of the voltage of synchronous device, frequency, angle, the locking value of voltage, frequency, lead angle and leading time, electric zero point, and completed voltage, frequency Pulse Width test, voltage, frequency adjustment test.In process of the test, monitor current angular difference situation by synchro indicator, synchronous indication window can monitor current pressure reduction and frequency difference, graphically intuitively shows.The amount of outputing can be controlled, carry out displacement with continuous or pulse two kinds of modes and export.
The fault state of shaking test simulation two-shipper oscillatory system vibration also tests the action situation of protective device; this module to provide in rotational oscillation, Turning motion, rotational oscillation fault four kinds of modes in fault and Turning motion; stackable various fault type, and the parameter of fault and initial time all can set.
Recurrence of failure module can import the PL4 file that the emulation tools such as the wave file of COMTRADE1991, COMTRADE1999 form or ATP, EMTP are formed, sample frequency scope is allowed to be 5kHz ~ 50kHz, voltage current waveform when exporting fault and intake displacement situation, export most high sampling rate 12.8kHz.Triggering mode comprises: triggerless, button trigger, synchronously trigger and GPS triggers.During output, the fault data can choosing a certain period exports, and can arrange and repeat to export number of times.Can the action situation of playback four road different digital amount.
Claims (10)
1. a substation relay protection test macro; comprise upper computer module and slave computer module; it is characterized in that: described upper computer module comprises control module, programmable logic device (PLD), communication unit and interface circuit; described slave computer module is communicated with host computer by communication unit; described control module is connected by PCIE bus with programmable logic device (PLD), and described interface circuit is connected with programmable logic device (PLD).
2. substation relay protection test macro according to claim 1, is characterized in that: described upper computer module comprise light testing digital module, status switch module, total group test module, harmonic test module, alternation slippage module, time response module, route protection module, impedance boundary module, differential tentative module, side by side the same period module, low all low-voltage load sheding modules, recurrence of failure module, shaking test module.
3. substation relay protection test macro according to claim 2, is characterized in that: described smooth testing digital module for receiving and dispatching sampling value message, GOOSE message, and can carry out the test of GOOSE transmission delay.
4. substation relay protection test macro according to claim 2, is characterized in that: described differential tentative module is used for ratio brake boundary search, ratio brake fixed test and harmonic braking boundary search.
5. substation relay protection test macro according to claim 2, is characterized in that: described status switch module can arrange 50 states, causes state to switch and triggers by time triggered, intake triggering, manual triggers or GPS.
6. substation relay protection test macro according to claim 2, is characterized in that: described alternation slippage module simulation one by step change or by slippage change process, for testing working value, rreturn value, the locking value of protective device.
7. substation relay protection test macro according to claim 2; it is characterized in that: described same period arranged side by side, module was for testing the working value of the voltage of synchronous device, frequency, angle; the locking value of voltage, frequency; lead angle and leading time; at electric zero point, complete voltage, frequency Pulse Width test.
8. substation relay protection test macro according to claim 1, is characterized in that: described interface circuit comprise fiber optic Ethernet transceiver interface, light serial ports transceiver interface, the hard contact interface of switching value, signal mode analog quantity interface, pair time signaling interface.
9. substation relay protection test macro according to claim 8, is characterized in that: when described pair, signaling interface provides IRIG-B/PPS light serial ports to input.
10. substation relay protection test macro according to claim 8, is characterized in that: described fiber optic Ethernet transceiver interface has eight.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776278A (en) * | 2018-07-05 | 2018-11-09 | 国网湖北省电力有限公司电力科学研究院 | A kind of the configuration type relay protection test system and method for topological correlation |
| CN111722151A (en) * | 2020-06-29 | 2020-09-29 | 国网四川省电力公司电力科学研究院 | Relay protection tester and method based on station control layer information control state switching |
-
2015
- 2015-01-06 CN CN201520006792.3U patent/CN204422718U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776278A (en) * | 2018-07-05 | 2018-11-09 | 国网湖北省电力有限公司电力科学研究院 | A kind of the configuration type relay protection test system and method for topological correlation |
| CN111722151A (en) * | 2020-06-29 | 2020-09-29 | 国网四川省电力公司电力科学研究院 | Relay protection tester and method based on station control layer information control state switching |
| CN111722151B (en) * | 2020-06-29 | 2023-03-14 | 国网四川省电力公司电力科学研究院 | Relay protection tester and method based on station control layer information control state switching |
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Inventor after: Xia Youbin Inventor after: Zhang Li Inventor after: Su Zhipeng Inventor after: Wang Peng Inventor after: Pan Wenhu Inventor after: Huang Xueqing Inventor after: Shen Xincun Inventor after: Yu Peng Inventor after: Zhou Qiyang Inventor after: Feng Fei Inventor after: Song Mingmin Inventor after: Chou Qiansheng Inventor before: Xia Youbin Inventor before: Zhang Li Inventor before: Su Zhipeng Inventor before: Wang Peng Inventor before: Pan Wenhu Inventor before: Huang Xueqing Inventor before: Shen Xincun Inventor before: Yu Peng Inventor before: Zhou Qiyang Inventor before: Feng Fei Inventor before: Song Mingmin Inventor before: Chou Qiansheng |
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Granted publication date: 20150624 Termination date: 20200106 |