CN104101787A - Portable low-voltage reactive compensation standard detection system and detection method - Google Patents
Portable low-voltage reactive compensation standard detection system and detection method Download PDFInfo
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- CN104101787A CN104101787A CN201310113167.4A CN201310113167A CN104101787A CN 104101787 A CN104101787 A CN 104101787A CN 201310113167 A CN201310113167 A CN 201310113167A CN 104101787 A CN104101787 A CN 104101787A
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Abstract
Provided is a portable low-voltage reactive compensation standard detection system and a detection method. The portable low-voltage reactive compensation standard detection system is characterized by comprising a reactive compensation standard power source, a signal acquisition interface board, a reactive compensation detector, a signal acquisition control platform and the detected reactive compensation device. The detected reactive compensation device is respectively connected with the reactive compensation standard power source, the signal acquisition interface board and the reactive compensation detector. The reactive compensation standard power source supplies stand signal input to the detected reactive compensation device. Corresponding motion and parameters outputted by the detected reactive compensation device are fed back to the signal acquisition interface board and the reactive compensation detector. The signal acquisition control platform is respectively connected with the signal acquisition interface board, the reactive compensation detector and the reactive compensation standard power source. The beneficial effects are that standard detection environment and correct processing can be ensured; and online detection and detection before network access of a low-voltage reactive compensation device can be met simultaneously.
Description
Technical field
The power electronics complete equipment that the present invention relates to a kind of power system terminal device are measured detection system and detection method, the front detection and online filed detection system and detection method of networking that is particularly related to a kind of low-voltage reactive-compensation complete device, belongs to the technical field that power electronics set of equipments detects.
Background technology
Along with the high speed development of national economy, in electrical network, there is increasing non-linear power electronic equipment, constantly produce harmonic wave and reactive power impact, cause voltage fluctuation and flicker, power factor is on the low side, has a strong impact on the quality of power supply of electric power network.For improving the power factor of power load side, improve the quality of power supply, reduce electrical network rate of electric network loss, a large amount of low-voltage reactive-compensation complete devices that adopt in electrical network.For the detection of the security needs of electrical network before the performance index of low-voltage reactive-compensation complete device are networked, and detect at the laggard line period of putting equipment in service, China does not also have professional reactive compensation complete device checkout equipment at present, especially operating reactive compensation complete device is lacked to effective checkout equipment.
Summary of the invention
Goal of the invention: the object of the present invention is to provide a kind of Portable low-pressure reactive-load compensation standard detection system and detection method, for networking Performance Detection and the outdoor on-the-spot cycle detection of low-voltage reactive-compensation complete device.
Technical scheme: a kind of Portable low-pressure reactive-load compensation standard detection system, reactive-load compensation calibration power source, signals collecting interface board, reactive-load compensation detector, signals collecting control platform, detected reactive power compensator; Detected reactive power compensator is connected with reactive-load compensation calibration power source, signals collecting interface board, reactive-load compensation detector respectively, reactive-load compensation calibration power source provides the signal input of standard to detected reactive power compensator, the corresponding actions of detected reactive power compensator output and parameter feedback are to signals collecting interface board and reactive-load compensation detector; Signals collecting control platform is connected with signals collecting interface board, reactive-load compensation detector and reactive-load compensation calibration power source respectively.
Described signals collecting interface board comprises RS232 interface and three-phase current Sampling Interface, and the signal access of described signals collecting interface board all adopts photoelectricity isolation.Accessible 20 road capacitor switching switching signals, the switching signal of contact switch and noncontacting switch and combination switch all has photoelectricity isolation, the access of can self-adaptation different operating voltage signals.Signals collecting interface board has 4 RS232 interfaces, and three-phase current Sampling Interface has single-chip microcomputer to process core as signal, can process 4 circuit-switched data communications and 20 path switching signal collections simultaneously.
Described signals collecting interface board is arranged in reactive-load compensation detector.
Described signals collecting control platform comprises a portable notebook computer, and described portable notebook computer inside installed that the output of reactive-load compensation standard source signal is controlled, reactive-load compensation detector measured value obtains, the detection control software of record by signals collecting interface board signal measurements, detected low-voltage reactive compensator capable verification result.
Described reactive-load compensation calibration power source can output quantity be limited to the alternating voltage of 57.7V, 100V, 220V, 380V, and range of adjustment 0-120% measures limit, regulates fineness 0.002% amount to limit; The alternating current that can output quantity be limited to 1A, 2A, 5A, 20A, range of adjustment 0-120% measures limit, regulates fineness 0.002% amount to limit; 2-31 subharmonic, harmonic content 0-40%, can single or the multiple harmonic that superposes arbitrarily output; Frequency output range of adjustment 45Hz-65Hz, accuracy 0.002Hz; Between three-phase voltage, between three-phase current, phase shift arbitrarily between each phase voltage and electric current, can simulate the power failure of decompression, defluidization, disconnected phase, reversed polarity.
Described reactive-load compensation detector can be measured reactive power compensator performance in real time, can measurement mains frequency, and voltage deviation, 3 phase unbalance factors, voltage, electric current, harmonic wave, active power, reactive power, power factor, the power quality parameters such as voltage flicker, and higher hamonic wave power direction.Reactive-load compensation detector has failure wave-recording function, can be in the time that reactive power compensator capacitor group be switch activated recording voltage, current waveform for resolving purposes.
The detection method of Portable low-pressure reactive-load compensation standard detection system, detecting step is as follows:
A) while networking front detection, first each group capacitor of detected low-voltage reactive compensator capable is disconnected, low-pressure reactive compensation calibration power source is connected with the controller of low-voltage reactive compensator capable, and each group capacitor fling-cut switch is connected with signals collecting interface board respectively; The data communication interface of reactive-load compensation calibration power source, reactive-load compensation detector, signals collecting interface board is connected with detection signal control platform respectively;
B) when online Site Detection, each group capacitor of tested low-voltage reactive compensator capable normally accesses network operation, the Voltage-output in reactive-load compensation calibration power source is connected with the controller of detected low-voltage reactive compensator capable, and the voltage sample input signal of the controller of low-voltage reactive compensator capable is provided by reactive-load compensation calibration power source; The current clamp of reactive-load compensation detector is identical measuring position with the current sample PT of the controller of low-voltage reactive compensator capable; Each group capacitor fling-cut switch is connected with signals collecting interface board respectively; The data communication interface of reactive-load compensation calibration power source, low-pressure reactive compensation detector, signals collecting interface board is connected with signals collecting control platform respectively;
After data analysis, comparison and the judgement of the standard signal that c) Portable low-pressure reactive-load compensation standard detection system provides and the tested low-voltage reactive compensator capable collecting, provide testing result, export corresponding examining report.
Beneficial effect: the present invention can guarantee testing environment standard, correctly process; Can meet simultaneously low-voltage reactive compensator capable online detection and network before detection.
Brief description of the drawings
Fig. 1 is that the present invention is the structured flowchart detecting before reactive power compensator networks;
Fig. 2 is that the present invention is the online structured flowchart detecting of reactive power compensator.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is that the structured flowchart detecting before reactive power compensator networks is also structured flowchart of the present invention, dedicated test software is housed and is formed a kind of Portable low-pressure reactive-load compensation standard detection system as signals collecting control platform by reactive-load compensation calibration power source, signals collecting interface board, reactive-load compensation detector, a notebook computer.Signals collecting interface board is arranged in low-pressure reactive compensation detector, is connected with detected low-voltage reactive compensator capable by measure traverse line.
While detecting low-voltage reactive compensator capable before networking, signal source is provided by low-pressure reactive compensation calibration power source, can output quantity be limited to the alternating voltage of 57.7V, 100V, 220V, 380V, and range of adjustment 0-120% measures limit, regulates fineness 0.002% amount to limit; The alternating current that can output quantity be limited to 1A, 2A, 5A, 20A, range of adjustment 0-120% measures limit, regulates fineness 0.002% amount to limit; 2-31 subharmonic, harmonic content 0-40%, can single or the multiple harmonic that superposes arbitrarily output; Frequency output range of adjustment 45Hz-65Hz, accuracy 0.002Hz; Between three-phase voltage, between three-phase current, phase shift arbitrarily between each phase voltage and electric current, can simulate the power failure of decompression, defluidization, disconnected phase, reversed polarity.
Fig. 2 is the online structured flowchart detecting of reactive power compensator, and online detection will disconnect low-voltage reactive compensator capable capacitive load, and capacitor switching switch ends is connected to signals collecting interface board.Before detection starts, low-voltage reactive compensator capable controller need to carry out setting parameter according to operating standard.
A notebook computer is equipped with dedicated test software as signals collecting control platform, be connected with signals collecting interface board, send corresponding order to low-pressure reactive compensation calibration power source, detected low-voltage reactive compensator capable should produce corresponding measurement numerical value, and reactive compensation switching switch is followed action.
Measurement parameter and the state of a control of the signal of low-pressure reactive compensation detector to low-pressure reactive compensation calibration power source and low-voltage reactive compensator capable controller records, the voltage waveform before and after fling-cut switch action carried out to record simultaneously.
After data analysis, comparison and the judgement of the standard signal that Portable low-pressure reactive-load compensation standard detection system provides and the tested low-voltage reactive compensator capable collecting, provide testing result, export corresponding examining report.
Carry out online Site Detection and connect Portable low-pressure reactive-load compensation standard detection system according to Fig. 2, the capacitor group of detected low-voltage reactive compensator capable is in online actual motion state, and current sampling signal is from the load signal of circuit real-time change.Starting needs to check that whether the condition of low-voltage reactive compensator capable initialization values setting is correct before detecting, and whether capacitor group is effective, and whether safety practice is perfect.
When online Site Detection low-voltage reactive compensator capable, the voltage sampling signal of tested low-voltage reactive compensator capable is from low-pressure reactive compensation calibration power of the present invention source.
Control the output signal in low-pressure reactive compensation calibration power source, make the controller of tested low-voltage reactive compensator capable produce corresponding measurement numerical value, and provide capacitor switching switch motion order.
Measurement parameter and the state of a control of the signal of low-pressure reactive compensation detector to low-pressure reactive compensation calibration power source and low-voltage reactive compensator capable controller records, the voltage waveform before and after fling-cut switch action carried out to record simultaneously.
Provide corresponding control command for different test items by taking formula low-pressure reactive compensation standard detection system, carry out cycling, until all project has been found range.
After data analysis, comparison and the judgement of the standard signal that Portable low-pressure reactive-load compensation standard detection system provides and the tested low-voltage reactive compensator capable collecting, provide testing result, export corresponding examining report.
Provide standard signal source by signals collecting control platform command low-pressure reactive compensation calibration power source, for detection of the electric property of low-voltage reactive compensator capable, guarantee testing environment standard, correct.
Gather the technical parameter of tested low-voltage reactive compensator capable by signals collecting control platform control low-pressure reactive compensation detector, and capacitor switching switch is recorded to ripple at voltage, the current waveform of action moment, for state analysis.
Portable low-pressure reactive-load compensation standard detection system is carried out line to the low-voltage reactive compensator capable in putting into operation again and is detected, make the switching controlled condition of low-pressure reactive compensation calibration power source analog capacitor group by signals collecting control platform, allow the controller of low-voltage reactive compensator capable provide control command, produce action accordingly.By low-pressure reactive compensation detector, the low-voltage reactive compensator capable in putting into operation is detected online.
Portable low-pressure reactive-load compensation standard detection system signal acquisition interface plate adopts photoelectricity isolation, and accessible 20 road capacitor switching switching signals can self-adaptation to different voltage inputs.Signals collecting interface board has 4 RS232 interfaces, and three-phase current Sampling Interface has single-chip microcomputer to process core as signal, can process 4 circuit-switched data communications and 20 path switching signal collections simultaneously.
Claims (7)
1. a Portable low-pressure reactive-load compensation standard detection system, is characterized in that: reactive-load compensation calibration power source, signals collecting interface board, reactive-load compensation detector, signals collecting control platform, detected reactive power compensator; Detected reactive power compensator is connected with reactive-load compensation calibration power source, signals collecting interface board, reactive-load compensation detector respectively, reactive-load compensation calibration power source provides the signal input of standard to detected reactive power compensator, the corresponding actions of detected reactive power compensator output and parameter feedback are to signals collecting interface board and reactive-load compensation detector; Signals collecting control platform is connected with signals collecting interface board, reactive-load compensation detector and reactive-load compensation calibration power source respectively.
2. Portable low-pressure reactive-load compensation standard detection system according to claim 1, is characterized in that: described signals collecting interface board comprises RS232 interface and three-phase current Sampling Interface, and the signal access of described signals collecting interface board all adopts photoelectricity isolation.
3. Portable low-pressure reactive-load compensation standard detection system according to claim 2, is characterized in that: described signals collecting interface board is arranged in reactive-load compensation detector.
4. Portable low-pressure reactive-load compensation standard detection system according to claim 1, it is characterized in that: described signals collecting control platform comprises a portable notebook computer, described portable notebook computer inside installed that the output of reactive-load compensation standard source signal is controlled, reactive-load compensation detector measured value obtains, the detection control software of record by signals collecting interface board signal measurements, detected low-voltage reactive compensator capable verification result.
5. Portable low-pressure reactive-load compensation standard detection system according to claim 1, it is characterized in that: described reactive-load compensation calibration power source can output quantity be limited to the alternating voltage of 57.7V, 100V, 220V, 380V, range of adjustment 0-120% measures limit, regulates fineness 0.002% amount limit; The alternating current that can output quantity be limited to 1A, 2A, 5A, 20A, range of adjustment 0-120% measures limit, regulates fineness 0.002% amount to limit; 2-31 subharmonic, harmonic content 0-40%, can single or the multiple harmonic that superposes arbitrarily output; Frequency output range of adjustment 45Hz-65Hz, accuracy 0.002Hz; Between three-phase voltage, between three-phase current, phase shift arbitrarily between each phase voltage and electric current, can simulate the power failure of decompression, defluidization, disconnected phase, reversed polarity.
6. Portable low-pressure reactive-load compensation standard detection system according to claim 1, it is characterized in that: described reactive-load compensation detector can be measured reactive power compensator performance in real time, can measurement mains frequency, voltage deviation, 3 phase unbalance factors, voltage, electric current, harmonic wave, active power, reactive power, power factor, the power quality parameters such as voltage flicker, and higher hamonic wave power direction.
7. the detection method of Portable low-pressure reactive-load compensation standard detection system according to claim 1, is characterized in that following steps:
A) while networking front detection, first each group capacitor of detected low-voltage reactive compensator capable is disconnected, low-pressure reactive compensation calibration power source is connected with the controller of low-voltage reactive compensator capable, and each group capacitor fling-cut switch is connected with signals collecting interface board respectively; The data communication interface of reactive-load compensation calibration power source, reactive-load compensation detector, signals collecting interface board is connected with detection signal control platform respectively;
B) when online Site Detection, each group capacitor of tested low-voltage reactive compensator capable normally accesses network operation, the Voltage-output in reactive-load compensation calibration power source is connected with the controller of detected low-voltage reactive compensator capable, and the voltage sample input signal of the controller of low-voltage reactive compensator capable is provided by reactive-load compensation calibration power source; The current clamp of reactive-load compensation detector is identical measuring position with the current sample PT of the controller of low-voltage reactive compensator capable; Each group capacitor fling-cut switch is connected with signals collecting interface board respectively; The data communication interface of reactive-load compensation calibration power source, low-pressure reactive compensation detector, signals collecting interface board is connected with signals collecting control platform respectively;
After data analysis, comparison and the judgement of the standard signal that c) Portable low-pressure reactive-load compensation standard detection system provides and the tested low-voltage reactive compensator capable collecting, provide testing result, export corresponding examining report.
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| CN104391196A (en) * | 2014-11-24 | 2015-03-04 | 武汉大学 | Function and performance detection and inspection method and system of dynamic compensation device of smart power grid |
| CN106610456A (en) * | 2015-10-21 | 2017-05-03 | 中国电力科学研究院 | Grid-connected performance test method for wind power plant reactive power compensation device |
| CN106885953A (en) * | 2015-12-16 | 2017-06-23 | 中国二十冶集团有限公司 | The adjustment method of automatic reactive compensated controller |
| CN109444533A (en) * | 2018-11-06 | 2019-03-08 | 青海电研科技有限责任公司 | The optimization method of reactive power compensator performance detection |
| CN116047214A (en) * | 2023-03-31 | 2023-05-02 | 东方博沃（北京）科技有限公司 | Verification method and device for reactive compensation controller |
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| CN116047214A (en) * | 2023-03-31 | 2023-05-02 | 东方博沃（北京）科技有限公司 | Verification method and device for reactive compensation controller |
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Application publication date: 20141015 |