CN201319063Y - Detecting and analyzing device of relay protection testing device - Google Patents

Detecting and analyzing device of relay protection testing device Download PDF

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Publication number
CN201319063Y
CN201319063Y CNU2008201778585U CN200820177858U CN201319063Y CN 201319063 Y CN201319063 Y CN 201319063Y CN U2008201778585 U CNU2008201778585 U CN U2008201778585U CN 200820177858 U CN200820177858 U CN 200820177858U CN 201319063 Y CN201319063 Y CN 201319063Y
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China
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links
output
relay
voltage
amplifier
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Expired - Fee Related
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CNU2008201778585U
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Chinese (zh)
Inventor
肖骏
王晓兰
杨贤明
杨新华
李建海
何世恩
姚旭
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Gansu Electric Power Co Ltd
Lanzhou University of Technology
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Electric Power Research Institute of State Grid Gansu Electric Power Co Ltd
Lanzhou University of Technology
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Priority to CNU2008201778585U priority Critical patent/CN201319063Y/en
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Publication of CN201319063Y publication Critical patent/CN201319063Y/en
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Abstract

Disclosed is a detecting and analyzing device of a relay protection testing device, which comprises a hardware system and a software system, and is characterized in that a relay protection testing device 1 of the hardware system is connected with a voltage and current isolating and conditioning circuit 2; the voltage and current isolating and conditioning circuit 2 is connected with an acquisition card 3; and the acquisition card 3 is connected with a high-performance computer 4. A switch output of the relay protection testing device 1 is connected with a photoelectric isolation board 5; the photoelectric isolation board 5 is connected with the acquisition card 3; a switch input of the relay protection testing device 1 is connected with a terminal board 6; the terminal board 6 is connected with a relay output type switch output board 7; and the switch output board 7 is connected with the computer 4. The software system comprises a measuring and analyzing software based on LabVIEW, which is arranged on the computer 4. The detecting and analyzing device can realize the performance testing and evaluation of the relay protection testing device, automatic record and analysis of the test data, generation of the test report and the like, and can form the closed loop with the testing device for interactive testing.

Description

Relay-protection tester check and analysis device
Technical field
The utility model relates to and is used for relay-protection tester parameter detecting analysis technical field, relates in particular to a kind of relay-protection tester check and analysis device.
Background technology
At present.The exploitation of relay-protection tester and application have improved the testing level of protective relaying device greatly, have improved debugging efficiency, and to guaranteeing the correct operation of relay protection, the security level that improves electrical network has active operation significance.The present domestic on-the-spot microcomputer type relay protection tester that uses is of a great variety, at aspects such as complete machine performance, quality, structure, technologies bigger difference is arranged all.Though DLT624-1997 " relay protection microcomputer type test unit technical conditions " has proposed clear and definite requirement to relay protection microcomputer type test unit; periodic inspection cycle and Interventions Requested have been stipulated; but because do not have relevant detection rules or standard; there is not ready-made check and analysis device, for examination and all inspection of relay-protection tester have been brought certain difficulty yet.Therefore, formulate standard, the rational method of inspection, development relay-protection tester check and analysis device carries out periodic inspection to relay-protection tester and has very important significance.
Summary of the invention
The purpose of this utility model is to provide a kind of relay-protection tester check and analysis device at defective of the prior art, and it adopts testing hardware device and intelligent software system, thereby has effectively overcome a series of problems of the described existence of background technology.
The technical scheme that its technical matters that solves the utility model adopts is: described relay-protection tester check and analysis device; include hardware system and software systems; its characteristics are: the relay-protection tester 1 of described hardware system is isolated modulate circuit 2 and is linked to each other with voltage, electric current; voltage, electric current are isolated modulate circuit 2 and are linked to each other with capture card 3, and capture card 3 links to each other with high-performance computer 4.The switching value output of relay-protection tester 1 links to each other with optical isolation board 5, optical isolation board 5 links to each other with capture card 3, the switching value input of relay-protection tester 1 links to each other with terminal board 6, terminal board 6 links to each other with relay output type digital output module 7, and digital output module 7 links to each other with computing machine 4; Described software systems include the Measurement and analysis software based on LabVIEW that is arranged on the computing machine 4.
The utility model is compared with background technology; the useful effect that has is: described relay-protection tester check and analysis device; the plurality of voltages of relay-protection tester output; electric current is isolated through high-accuracy voltage mutual inductor summation current transformer; conversion; pass through the signal amplification circuit of Gain Automatic adjustment again; signal is amplified to suitable scope; pass through pci interface; by high speed; send into Computer Storage and analyzing and processing after the high-resolution A/D converter sample; by LabVIEW and advanced of ac Measurement Algorithm, finish the every stable state parameter of relay-protection tester; the measurement of dynamic parameter and time.The independently multi-way switch amount input and output interface that has by device is finished the detection to the protective relaying device operating state simultaneously, and the output state of relay-protection tester in the process of the test is implemented influence.
It is except providing the man-machine interface of being convenient to operate, by the electric parameter measurement algorithm, finish the amplitude of tester current/voltage amount, frequency, the accuracy of phase place detects, the humorous detection that involves total percent harmonic distortion of tester current/voltage, tester current/voltage source load capacity detects, tester current/voltage source response speed detects, the detection of accuracy of direct voltage source amplitude and ripple coefficient of voltage, synchronism between each electric parameters detects and time detecting, electric current, the identification and the fault type of voltage preface component detection and Various types of data record ripple and simulated failure signal are judged.This device can realize generation of the automatic record of the performance test of relay-protection tester and evaluation, test data and analysis, test report etc., and can form closed loop with tester, carries out interactive text.Simultaneously can record ripple, fault parameter is measured, fault type is discerned and classified the most common failure signal of tester simulation output.
Description of drawings
Fig. 1 is a hardware system principle schematic of the present utility model;
Fig. 2 (a) and (b), (c), (d) are the voltage in the hardware system of the present utility model, the circuit theory synoptic diagram that electric current is isolated modulate circuit 2;
Fig. 3 is a software systems principle schematic of the present utility model;
Fig. 4 is the principle schematic of the syndrome check assay surface 10 in the software systems of the present utility model.
Embodiment
As shown in Figure 1; described relay-protection tester check and analysis device; include hardware system and software systems; its characteristics are: the relay-protection tester 1 of described hardware system is isolated modulate circuit 2 and is linked to each other with voltage, electric current; voltage, electric current are isolated modulate circuit 2 and are linked to each other with capture card 3, and capture card 3 links to each other with high-performance computer 4.The switching value output of relay-protection tester 1 links to each other with optical isolation board 5, optical isolation board 5 links to each other with capture card 3, the switching value input of relay-protection tester 1 links to each other with terminal board 6, terminal board 6 links to each other with relay output type digital output module 7, and digital output module 7 links to each other with computing machine 4; Described software systems include the Measurement and analysis software based on LabVIEW that is arranged on the computing machine 4.
Shown in Fig. 2 (a) and (b), (c), (d), described voltage, electric current are isolated modulate circuit 2 and are included a plurality of DC voltage, electric current isolation conditioning passage and a plurality of alternating voltage, electric current isolation conditioning passage.Described voltage, electric current are isolated the alternating voltage of modulate circuit 2 and are isolated in the conditioning passage, the voltage of relay-protection tester 1 output links to each other with mutual inductor 2-1, mutual inductor 2-1 links to each other with the first amplifier 2-2, the output of first amplifier (2-2) is by resistance R 11, R12, R13, R14 links to each other with the first multidiameter option switch 2-3, the output of the first amplifier 2-2 links to each other with capture card 3 by connection terminal, and 1 pin of the first multidiameter option switch 2-3 and 14 pin connect the parallel port of DSPic30F6014A chip respectively; Voltage, electric current are isolated the alternating current of modulate circuit 2 and are isolated in the conditioning passage, the electric current of relay-protection tester 1 output links to each other with mutual inductor 2-4, mutual inductor 2-4 links to each other with the second amplifier 2-5, the second amplifier 2-5 is by resistance R 23, R24, R25, R26 links to each other with the second multidiameter option switch 2-6, the output of the second amplifier 2-5 links to each other with capture card 3 by connection terminal, and 1 pin of the second multidiameter option switch 2-6 and 14 pin connect the parallel port of DSPic30F6014A chip respectively; Voltage, electric current is isolated the DC voltage of modulate circuit 2 and is isolated in the conditioning passage, the DC voltage of relay-protection tester 1 output links to each other with the end of resistance R 31 and R32, resistance R 31 links to each other by second pin of resistance R 33 with the 3rd amplifier 2-7 with the R32 other end, the output of the 3rd amplifier 2-7 links to each other with the first photoisolator 2-8, the output of the first photoisolator 2-8 meets the 4th amplifier 2-9, the output of the 4th amplifier 2-9 links to each other with capture card 3 by connection terminal, and the pin 1 and 14 of the 3rd multidiameter option switch 2-10 connects the parallel port of DSPic30F6014A chip respectively; Voltage, electric current are isolated the DC current of modulate circuit 2 and are isolated in the conditioning passage; the DC current of relay-protection tester 1 output links to each other with resistance R 41; its output links to each other with the 5th amplifier 2-11; the output of the 5th amplifier 2-11 links to each other with the second photoisolator 2-12; the second photoisolator 2-12 meets the 6th amplifier 2-13; the output of the 6th amplifier 2-13 links to each other with capture card 3 by connection terminal, and the pin 1 and 14 of the 4th multidiameter option switch 2-14 connects the parallel port of DSPic30F6014A chip respectively.
As Fig. 3, shown in 4, the Measurement and analysis software based on LabVIEW on the described computing machine 4 includes main interface 8, main interface 8 has syndrome check assay surface 10 and routine inspection assay surface 9, routine inspection assay surface 9 has conventional func check interface 11 and complete machine performance test interface 12, and conventional func check interface 11 includes ac current source performance test module 13, alternating-current voltage source performance test module 14, direct voltage source performance test module 15, of ac phase detecting module 16, of ac preface component detection module 17, of ac power model 18 and time detecting module 19; Ac current source performance test module 13, alternating-current voltage source performance test module 14, direct voltage source performance test module 15, of ac phase detecting module 16, of ac preface component detection module 17, of ac power detection module 18 link to each other with test report generation module 20 respectively with time detecting module 19.
Described syndrome check assay surface 10 has failure wave-recording module 21, impedance operator test module 22, zero-sequence current test module 23, synchronism test module 24, response speed test module 25 and wave shape playback module 26, failure wave-recording module 21 is by whole group test module 27 time before the output fault, fault-time and transformational time, fault type, nature of trouble module 28 links to each other with test report generation module 20, impedance operator test module 22 is through the output fault type, fault-time and resistance value module 29 link to each other with test report generation module 20, zero-sequence current test module 23 is through the output fault type, fault-time and zero-sequence current module 30 link to each other with test report generation module 20, synchronism test module 24 is through exporting each signal Synchronization time, phase difference module 31 links to each other with test report generation module 20, and response speed test module 25 links to each other with test report generation module 20 through exporting each signal response speed module 32.
Described relay-protection tester check and analysis device; it is when implementing; enter routine inspection assay surface 9 by the main interface 8 of test; check interface 11 times in conventional func; the environmental parameter of test at first is set; input test personnel name; test mode is set; reference value; step-length; scope and threshold value; select ac current source performance test module 13 then; alternating-current voltage source performance test module 14; direct voltage source performance test module 15; of ac phase detecting module 16; of ac preface component detection module 17; arbitrary module in of ac power detection module 18 and the time detecting module 19 is tested; enter test process; finish data acquisition; characteristic quantity calculates; Error Calculation and waveform recording; and eject whether generate the test report dialog box; as needs; report after tested that then generation module 20 generates test report; otherwise, finish this test.At complete machine performance test interface 12 times, at first environmental parameter, test mode, step-length and scope to be set, carry out data acquisition then, calculate each voltage, current output value and phase place, and carry out frequency analysis and waveform recording, calculate and respectively measure the duration, and eject whether generate the test report dialog box, as needs, report after tested that then generation module 20 generates test report, otherwise, finish this test.When the main interface 8 of test enters syndrome check assay surface 10, can select the arbitrary module in failure wave-recording module 21, impedance operator test module 22, zero-sequence current test module 23, synchronism test module 24, response speed test module 25 and the wave shape playback module 26 to test, when selecting failure wave-recording module 21, manual record ripple is arranged, to record the ripple dual mode automatically available, and can select out-of-limit value or sudden change amount Starting mode, after finishing failure wave-recording, fault data is carried out total group test; Failure wave-recording module 21 is by whole group test module 27 time before the output fault, fault-time and transformational time, fault type, nature of trouble module 28 links to each other with test report generation module 20, impedance operator test module 22 is through the output fault type, fault-time and resistance value module 29 link to each other with test report generation module 20, zero-sequence current test module 23 is through the output fault type, fault-time and zero-sequence current module 30 link to each other with test report generation module 20, synchronism test module 24 is through exporting each signal Synchronization time, phase difference module 31 links to each other with test report generation module 20, response speed test module 25 links to each other with test report generation module 20 through exporting each signal response speed module 32, by all kinds of tests, the calculated characteristics parameter, and according to the failure modes algorithm, discriminating fault types, nature of trouble, calculate each segment fault time, and report that after tested the test report that generation module 20 forms standard supplies storage and printing.
Described relay-protection tester check and analysis device, after entering whole group test, relay-protection tester 1 can be accepted the check and analysis device and disconnect by the switch that the switching value output interface provides, and overlaps and jumps signal forever, thereby cause the change of tester output; After entering impedance operator test and zero-sequence current test, relay-protection tester 1 can be accepted the fault cut-off signal that the check and analysis device provides by the switching value output interface, thereby causes the change of tester output, finishes interactive text.

Claims (3)

1, relay-protection tester check and analysis device; include hardware system and software systems; it is characterized in that: the relay-protection tester of described hardware system (1) is isolated modulate circuit (2) and is linked to each other with voltage, electric current; voltage, electric current are isolated modulate circuit (2) and are linked to each other with capture card (3), and capture card (3) links to each other with high-performance computer (4).The switching value output of relay-protection tester (1) links to each other with optical isolation board (5); optical isolation board (5) links to each other with capture card (3); the switching value input of relay-protection tester (1) links to each other with terminal board (6); terminal board (6) links to each other with relay output type digital output module (7), and digital output module (7) links to each other with computing machine (4).
2, relay-protection tester check and analysis device according to claim 1 is characterized in that: described voltage, electric current are isolated modulate circuit (2) and are included a plurality of DC voltage, electric current isolation conditioning passage and a plurality of alternating voltage, electric current isolation conditioning passage.
3, relay-protection tester check and analysis device according to claim 1 and 2, it is characterized in that: described voltage, electric current are isolated the alternating voltage of modulate circuit (2) and are isolated in the conditioning passage, the voltage of relay-protection tester (1) output links to each other with mutual inductor (2-1), mutual inductor (2-1) links to each other with first amplifier (2-2), the output of first amplifier (2-2) is by resistance R 11, R12, R13, R14 links to each other with first multidiameter option switch (2-3), and the output of first amplifier (2-2) links to each other with capture card (3) by connection terminal; 1 pin of first multidiameter option switch (2-3) and 14 pin connect the parallel port of DSPic30F6014A chip respectively; Voltage, electric current are isolated the alternating current of modulate circuit (2) and are isolated in the conditioning passage, the electric current of relay-protection tester (1) output links to each other with mutual inductor (2-4), mutual inductor (2-4) links to each other with second amplifier (2-5), second amplifier (2-5) pass through resistance R 23, R24, R25, R26 links to each other with second multidiameter option switch (2-6), the output of second amplifier (2-5) links to each other with capture card (3) by connection terminal, and 1 pin of second multidiameter option switch (2-6) and 14 pin connect the parallel port of DSPic30F6014A chip respectively; Voltage, electric current is isolated the DC voltage of modulate circuit (2) and is isolated in the conditioning passage, the DC voltage of relay-protection tester (1) output links to each other with the end of resistance R 31 and R32, resistance R 31 links to each other by second pin of resistance R 33 with the 3rd amplifier (2-7) with the R32 other end, the output of the 3rd amplifier (2-7) links to each other with first photoisolator (2-8), the output of first photoisolator (2-8) connects the 4th amplifier (2-9), the output of the 4th amplifier (2-9) links to each other with capture card (3) by connection terminal, and the pin 1 and 14 of the 3rd multidiameter option switch (2-10) connects the parallel port of DSPic30F6014A chip respectively; Voltage, electric current are isolated the DC current of modulate circuit (2) and are isolated in the conditioning passage; the DC current of relay-protection tester (1) output links to each other with resistance R 41; its output links to each other with the 5th amplifier (2-11); the output of the 5th amplifier (2-11) links to each other with second photoisolator (2-12); second photoisolator (2-12) connects the 6th amplifier (2-13); the output of the 6th amplifier (2-13) links to each other with capture card (3) by connection terminal, and the pin 1 and 14 of the 4th multidiameter option switch (2-14) connects the parallel port of DSPic30F6014A chip respectively.
CNU2008201778585U 2008-11-25 2008-11-25 Detecting and analyzing device of relay protection testing device Expired - Fee Related CN201319063Y (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101915881A (en) * 2010-08-04 2010-12-15 国网电力科学研究院 Real-time simulation test method of relay protection device
CN102375105A (en) * 2010-07-22 2012-03-14 上海宝冶集团有限公司 Simulation test system of substation equipment relay protection system
CN101738955B (en) * 2009-12-24 2012-06-06 中国电力科学研究院 Data automatic recording system for dynamic simulation test and method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101738955B (en) * 2009-12-24 2012-06-06 中国电力科学研究院 Data automatic recording system for dynamic simulation test and method thereof
CN102375105A (en) * 2010-07-22 2012-03-14 上海宝冶集团有限公司 Simulation test system of substation equipment relay protection system
CN101915881A (en) * 2010-08-04 2010-12-15 国网电力科学研究院 Real-time simulation test method of relay protection device
CN101915881B (en) * 2010-08-04 2013-03-06 国网电力科学研究院 Real-time simulation test method of relay protection device

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