CN204855674U - Experimental utensil environment electromagnetic compatibility's of power transmission and transformation primary equipment evaluation device - Google Patents
Experimental utensil environment electromagnetic compatibility's of power transmission and transformation primary equipment evaluation device Download PDFInfo
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- CN204855674U CN204855674U CN201520566556.7U CN201520566556U CN204855674U CN 204855674 U CN204855674 U CN 204855674U CN 201520566556 U CN201520566556 U CN 201520566556U CN 204855674 U CN204855674 U CN 204855674U
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Abstract
The utility model discloses an experimental utensil environment electromagnetic compatibility's of power transmission and transformation primary equipment evaluation device, a serial communication port, including power module, serial communication module, alternating current parameter high -speed sampling module, harmonic signal output module, man -machine interface module, main system module, power module power output end with main system module's power input end is connected, main system module's human -computer interface control signal line with the signal interface of man -machine interface module is connected, main system module's connection with the communication interface of serial communication module is connected, main system module's alternating voltage, alternating current analog signal input with the alternating current parameter analog signal output end of alternating current parameter high -speed sampling module is connected, main system module's signal line with the signal interface of harmonic signal output module is connected, the external computer platform of serial communication module is used for carrying out the analysis for the computer platform data transmission.
Description
Technical field
The utility model relates to a kind of evaluating apparatus of power transmission and transformation primary equipment test tool environment electromagnetics compatibility, belongs to electrical measurement field of measuring techniques.
Background technology
Along with the development of electric system, voltage improves constantly, and place capacity is increasing, and electrical network scale is also increasing, result in various electric/electronic device in power transmission and transformation system and to produce and the probability that accepts electromagnetic interference (EMI) increases greatly.The various test tools that electrical network power transmission and transforming equipment repair and maintenance adopts work under various strong electromagnetic environment, and its reliability is subject to the impact of the Radio frequency interference (RFI) of the electromagnetic coupled of grid operation equipment, electrostatic coupling and corona radiation.Because the reliability requirement of such test tool is lower than protective device, and consider that this type of test tool production scale is little, a great variety, if carry out relevant electromagnetic compatibility test according to protective device standard " GB/T14598.20-2007 electrical relay the 26th part: the EMC Requirements of masuring relay and protective device ", the time expended is long, cost is high, key is that the interference characteristic that characterizes of test condition and working site electromagnetic environment have larger difference, general of the pilot project that the relevant electromagnetic compatibility standard of electronic measuring instrument specifies completes and wastes time and energy in device type test, country has eliminated the requirement forcing type approval test.At present, specially for the examination of the environment electromagnetics compatibility of power transmission and transforming equipment test tool and the research still blank of method of testing, need to carry out inquiring into and expect to form corresponding standard.
Utility model content
For the defect that prior art exists, the utility model proposes a kind of evaluating apparatus of power transmission and transformation primary equipment test tool environment electromagnetics compatibility, to ensure the Measurement accuracy to power transmission and transformation primary equipment electrical quantity, ensure the safe operation to electrical network; This device has harmonic wave interference triggered function, can be formed comprise AC and DC simultaneously electromagnetic coupled interference, radiation interference and Conduction Interference comprehensive electromagnetic environment, for simulating the strong magnetic field circumstance of power transmission and transformation primary equipment test tool working site, then by data acquisition and comparative analysis, the testing reliability of test tool is verified, thus realizes the evaluation to power transmission and transformation single test tool environment electromagnetic compatibility.
The utility model adopts following technical scheme: a kind of evaluating apparatus of power transmission and transformation primary equipment test tool environment electromagnetics compatibility, it is characterized in that, comprise power module, serial communication modular, alternating current parameter high-speed sampling module, harmonic signal output module, human-computer interface module, main system module, described power module power output end is connected with the power input of described main system module, the human-computer interface control signal wire of described main system module is connected with the signaling interface of described human-computer interface module, the connection of described main system module is connected with the communication interface of described serial communication modular, the alternating voltage of described main system module, alternating current input end of analog signal is connected with the alternating current parameter analog signal output of described alternating current parameter high-speed sampling module, the signal wire of described main system module is connected with the signaling interface of described harmonic signal output module, the external computer platform of described serial communication modular, is used for transferring data to computer platform analysis.
Preferably, power module adopts the N6733B modular power of ALTERA.
Preferably, serial communication modular adopts Mitsubishi RS232 serial communication module QJ71C24N-R2.
Preferably, alternating current parameter high-speed sampling module adopts the PK9015 alternating voltage current acquisition module that benefit function Instrument Corporation of Haier produces.
Preferably, human-computer interface module comprises Keysheet module and LCD display module; LCD display module adopts Samsung LTM121SI-T01LCD display panel module, and the screen size of Samsung LTM121SI-T01LCD display panel module is 12.1 cun, and resolution is 800*600.
Preferably, main system module adopts the fpga chip EP2C8Q208 of altera corp as Master control chip.
Preferably, harmonic signal output module comprises electric current and voltage power amplifier, the vector samples part of phase accumulator, waveform question blank, digital to analog converter, low-pass filter, the sampling of composite feedback control cincture; Electric current and voltage power amplifier, the vector samples part of the sampling of phase accumulator, waveform question blank, digital to analog converter, low-pass filter, composite feedback control cincture are connected in order.
Preferably, the electric current and voltage power amplifier of composite feedback control cincture sampling comprises amplitude controller, comparer, power amplifier prime part, power amplifying part, agc circuit; The input end of comparer is connected with the output terminal of amplitude controller, the output terminal of agc circuit respectively, and the output terminal of comparer is connected with the input end of power amplifier prime part; The output terminal of power amplifier prime part is connected with the input end of power amplifier.
The beneficial effect that the utility model reaches: the utility model has harmonic wave interference triggered function, can be formed comprise AC and DC simultaneously electromagnetic coupled interference, radiation interference and Conduction Interference comprehensive electromagnetic environment, for simulating the strong magnetic field circumstance of power transmission and transformation primary equipment test tool working site, then by data acquisition and comparative analysis, the testing reliability of test tool is verified, achieves the evaluation to power transmission and transformation single test tool environment electromagnetic compatibility; Through manufacturing experimently to try out, there is advantage that is convenient and practical, quickness and high efficiency, substantially increasing the work efficiency of power transmission and transformation primary equipment checker simultaneously, and reducing testing cost, meeting 0.05 classification standard through qualification.
Accompanying drawing explanation
Fig. 1 is anatomical connectivity schematic diagram of the present utility model.
The evaluating apparatus of the implication marked in figure: a 1-power transmission and transformation primary equipment test tool environment electromagnetics compatibility, 2-computer platform, 3-power transmission and transformation primary equipment test tool, 4-power module, 5-serial communication modular, 6-alternating current parameter high-speed sampling module, 7-harmonic signal output module, 8-human-computer interface module, 9-main system module.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
Fig. 1 is anatomical connectivity schematic diagram of the present utility model, the utility model proposes a kind of evaluating apparatus 1 of power transmission and transformation primary equipment test tool environment electromagnetics compatibility, comprise power module 4, serial communication modular 5, alternating current parameter high-speed sampling module 6, harmonic signal output module 7, human-computer interface module 8, main system module 9, power module 4 power output end is connected with the power input of main system module 9, the human-computer interface control signal wire of main system module 9 is connected with the signaling interface of human-computer interface module 8, the connection of main system module 9 is connected with the communication interface of serial communication modular 5, the alternating voltage of main system module 9, alternating current input end of analog signal is connected with the alternating current parameter analog signal output of alternating current parameter high-speed sampling module 6, the signal wire of main system module 9 is connected with the signaling interface of harmonic signal output module 7, the external computer platform 2 of serial communication modular 5, is used for transferring data to computer platform 2 and analyzes.
Power module 4 adopts the N6733B modular power of ALTERA; Serial communication modular 5 adopts Mitsubishi RS232 serial communication module QJ71C24N-R2; The PK9015 alternating voltage current acquisition module that alternating current parameter high-speed sampling module 6 adopts benefit function Instrument Corporation of Haier to produce; Human-computer interface module 8 comprises keyboard and LCD display module; LCD display module adopts Samsung LTM121SI-T01LCD display panel module, and the screen size of Samsung LTM121SI-T01LCD display panel module is 12.1 cun, and resolution is 800*600; Main system module 9 adopts the fpga chip EP2C8Q208 of altera corp as Master control chip.
Harmonic signal output module 7 comprises electric current and voltage power amplifier, the vector samples part of phase accumulator, waveform question blank, digital to analog converter, low-pass filter, the sampling of composite feedback control cincture; Electric current and voltage power amplifier, the vector samples part of the sampling of phase accumulator, waveform question blank, digital to analog converter, low-pass filter, composite feedback control cincture are connected in order.
The electric current and voltage power amplifier of composite feedback control cincture sampling comprises amplitude controller, comparer, power amplifier prime part, power amplifying part, agc circuit; The input end of comparer is connected with the output terminal of amplitude controller, the output terminal of agc circuit respectively, and the output terminal of comparer is connected with the input end of power amplifier prime part; The output terminal of power amplifier prime part is connected with the input end of power amplifier.
Principle of work of the present utility model: power module 4 is as power supply, DSP(digital signal processor in main system module 9) be embedded in real time operating system, by scanning the waveform parameter of the input through keyboard of human-computer interface module 8, order harmonic signal output module 7 carries out harmonic interference signals and subtest standard signal and exports, and also controls the alternating current parameter data acquisition of power transmission and transformation primary equipment test tool 3 simultaneously and shows; Evaluating apparatus 1 of the present utility model is connected with outer computer platform 2 by serial communication modular 5, data can be reached calculating and the analysis software of platform 2, and user can carry out by computer platform 2 that testing scheme is selected, data sheet printing.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and distortion, these improve and distortion also should be considered as protection domain of the present utility model.
Claims (8)
1. the evaluating apparatus of a power transmission and transformation primary equipment test tool environment electromagnetics compatibility, it is characterized in that, comprise power module (4), serial communication modular (5), alternating current parameter high-speed sampling module (6), harmonic signal output module (7), human-computer interface module (8), main system module (9), described power module (4) power output end is connected with the power input of described main system module (9), the human-computer interface control signal wire of described main system module (9) is connected with the signaling interface of described human-computer interface module (8), the connection of described main system module (9) is connected with the communication interface of described serial communication modular (5), the alternating voltage of described main system module (9), alternating current input end of analog signal is connected with the alternating current parameter analog signal output of described alternating current parameter high-speed sampling module (6), the signal wire of described main system module (9) is connected with the signaling interface of described harmonic signal output module (7), described serial communication modular (5) external computer platform (2), is used for transferring data to computer platform (2) and analyzes.
2. the evaluating apparatus of a kind of power transmission and transformation primary equipment test tool environment electromagnetics compatibility according to claim 1, is characterized in that, described power module (4) adopts the N6733B modular power of ALTERA.
3. the evaluating apparatus of a kind of power transmission and transformation primary equipment test tool environment electromagnetics compatibility according to claim 1, is characterized in that, described serial communication modular (5) adopts Mitsubishi RS232 serial communication module QJ71C24N-R2.
4. the evaluating apparatus of a kind of power transmission and transformation primary equipment test tool environment electromagnetics compatibility according to claim 1, it is characterized in that, the PK9015 alternating voltage current acquisition module that described alternating current parameter high-speed sampling module (6) adopts benefit function Instrument Corporation of Haier to produce.
5. the evaluating apparatus of a kind of power transmission and transformation primary equipment test tool environment electromagnetics compatibility according to claim 1, it is characterized in that, described human-computer interface module (8) comprises Keysheet module and LCD display module; Described LCD display module adopts Samsung LTM121SI-T01LCD display panel module, and the screen size of described Samsung LTM121SI-T01LCD display panel module is 12.1 cun, and resolution is 800*600.
6. the evaluating apparatus of a kind of power transmission and transformation primary equipment test tool environment electromagnetics compatibility according to claim 1, is characterized in that, described main system module (9) adopts the fpga chip EP2C8Q208 of altera corp as Master control chip.
7. the evaluating apparatus of a kind of power transmission and transformation primary equipment test tool environment electromagnetics compatibility according to claim 1, it is characterized in that, described harmonic signal output module (7) comprises electric current and voltage power amplifier, the vector samples part of phase accumulator, waveform question blank, digital to analog converter, low-pass filter, the sampling of composite feedback control cincture; Electric current and voltage power amplifier, the described vector samples part of the sampling of described phase accumulator, described waveform question blank, described digital to analog converter, described low-pass filter, described composite feedback control cincture are connected in order.
8. the evaluating apparatus of a kind of power transmission and transformation primary equipment test tool environment electromagnetics compatibility according to claim 7, it is characterized in that, the electric current and voltage power amplifier of described composite feedback control cincture sampling comprises amplitude controller, comparer, power amplifier prime part, power amplifying part, agc circuit; The input end of described comparer is connected with the output terminal of described amplitude controller, the output terminal of described agc circuit respectively, and the output terminal of described comparer is connected with the input end of described power amplifier prime part; The output terminal of described power amplifier prime part is connected with the input end of described power amplifier.
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| CN201520566556.7U CN204855674U (en) | 2015-07-31 | 2015-07-31 | Experimental utensil environment electromagnetic compatibility's of power transmission and transformation primary equipment evaluation device |
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| CN201520566556.7U CN204855674U (en) | 2015-07-31 | 2015-07-31 | Experimental utensil environment electromagnetic compatibility's of power transmission and transformation primary equipment evaluation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182108A (en) * | 2015-07-31 | 2015-12-23 | 江苏方天电力技术有限公司 | Evaluation device for environmental electromagnetic compatibility of power transmission and transformation primary equipment testing device |
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2015
- 2015-07-31 CN CN201520566556.7U patent/CN204855674U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182108A (en) * | 2015-07-31 | 2015-12-23 | 江苏方天电力技术有限公司 | Evaluation device for environmental electromagnetic compatibility of power transmission and transformation primary equipment testing device |
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Granted publication date: 20151209 Effective date of abandoning: 20180622 |