CN103149486A - Function and performance testing method of low-voltage complete reactive power compensation device - Google Patents
Function and performance testing method of low-voltage complete reactive power compensation device Download PDFInfo
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- CN103149486A CN103149486A CN2013100855908A CN201310085590A CN103149486A CN 103149486 A CN103149486 A CN 103149486A CN 2013100855908 A CN2013100855908 A CN 2013100855908A CN 201310085590 A CN201310085590 A CN 201310085590A CN 103149486 A CN103149486 A CN 103149486A
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Abstract
The invention discloses a function and performance testing method of a low-voltage complete reactive power compensation device, and the method tests the functions and performance of the low-voltage complete reactive power compensation device by simulating various characteristic waveforms of a distribution line according to different control parameters of the low-voltage complete reactive power compensation device; the method comprises a function testing part and a performance testing part, wherein the function testing part comprises a switching function test, an over-voltage protection function test, a decompression protection function test, a harmonic wave protection function test and an open-phase protection function test; and the performance testing part comprises a zero-crossing switching function test, a sampling precision test and an input dynamic response characteristic test. The testing method can be used for the networking testing, delivery testing, daily operation and maintenance testing and the like of the low-voltage complete reactive power compensation device, so as to ensure the economical and stable operation of a power distribution network.
Description
Technical field
The invention belongs to the electrical power distribution automation system field, relate in particular to the detection method of a kind of low-pressure reactive power compensating device assemblies function and performance.
Background technology
The balance that keeps reactive power in electric system is the necessary condition that guarantees electric power quality, quality of voltage, reduction grid loss and security of system stable operation, and reactive power compensation is the important measures that realize Reactive Power Balance.Reactive power compensator has the load capacity that improves the factor is lead to consumer's meritorous service, increases electrical network, the function that reduces line loss, systems stabilisation voltage levvl and the raising quality of power supply, generally uses in electric system.
Yet, being applicable on the existing market that low-voltage complete reactive power compensator in power distribution network is of a great variety, dragons and fishes jumbled together, the functional performance of product is uneven, and low-voltage reactive compensator capable is arranged on the open air more, and work under bad environment very easily breaks down.In order to ensure low-voltage reactive compensator capable safety, reliably, stably operation, the function such as the switching accuracy of compensation system, switching mode, dynamic response, switching precision and performance and device are dropped into to reach re-set target to the electrical network actual influence after electrical network and all need make judge, should require carry out Site Detection work according to power distribution network actual conditions and correlation technique.
Summary of the invention
The technical problem to be solved in the present invention is to provide the detection method of a kind of low-pressure reactive power compensating device assemblies function and performance, with guarantee low-voltage reactive compensator capable safety, reliably, stably operation.
For solving the problems of the technologies described above, the present invention by the following technical solutions: the detection method of low-pressure reactive power compensating device assemblies function and performance, comprise function test part and performance test part,
Function test partly comprises following five:
(1) switching function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; By setting different voltage, current value and phase place extent, make its controlled quentity controlled variable reach the input thresholding of this compensation system, observe whether dropping into successively by setting logic of capacitor group; Then adjust voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the excision thresholding of this compensation, observe the whether successively excision of capacitor group, judge thus whether this device possesses the switching function;
(2) over-voltage protecting function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; By setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of compensation system, the capacitor group is dropped into successively; Then increase magnitude of voltage, make it greater than the setting voltage upper limit, whether automatic blocking capacitor group drops into to observe reactive power compensator, and whether the capacitor group that has dropped into judges whether this device has over-voltage protecting function thus by setting-up time order complete resection successively;
(3) o-volt protection function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; By setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of this compensation system, the capacitor group is dropped into successively; Then stop the input (being that the electric current and voltage value is 0) of voltage, electric current, observe the whether automatically excision of capacitor group, judge thus whether this device possesses the o-volt protection function;
(4) harmonic protection function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as ABC three-phase voltage, the current input signal of low-voltage reactive power compensation device; By setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of this compensation system, the capacitor group drops into 1 group at least; Then adjust the input waveform of voltage, electric current, make the harmonic wave total amount (aberration rate) of its control signal greater than setting value, observe the capacitor group and whether can automatic blocking drop into, and excise successively the capacitor group, judge thus whether this device possesses the harmonic protection function;
(5) default-phase protection function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; By setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of this compensation system, the capacitor group is all dropped into successively; Then stop successively the input (be that the electric current and voltage value is 0, be about 1min interval time) of A phase, B phase, C phase voltage electric current, observe successively the capacitor group of corresponding phase shortage circuit and whether automatically excise, judge thus whether this device possesses default-phase protection function;
Performance test partly comprises following three:
(1) operating passing zero function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; By setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of this compensation system, use the oscillograph record voltage waveform of circuit at this moment, whether realize that from the voltage waveform analysis reactive power compensator voltage zero-cross drops into; In like manner, by setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the excision thresholding of this compensation system, use the oscillograph record current waveform of circuit at this moment, analyze reactive power compensator from current waveform and whether realize the current over-zero excision;
(2) sampling precision test
Adjusting makes its output X without function signal generation standard source output valve
1, output is connected on the Input terminal block of reactive power compensator, and sampled value corresponding on the indication panel of reactive power compensator is X
2, reactive power compensation device sampling precision error amount η=| X
2-X
1|/X
1* 100%;
(3) drop into the dynamic response characteristic test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; By setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of compensation system, record the analog line waveform of this moment, and observe the actual incision signal of reactive power compensator, write down the reactive power compensator controlled quentity controlled variable and reach the moment T that drops into thresholding
1And the moment T of reactive power compensator step switch input
2, the input dynamic response time Δ T of reactive power compensation device
1=T
2-T
1In like manner, by setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the excision thresholding of compensation system, record the analog line waveform of this moment, and the actual signal that withdraws from of step switch of observation reactive power compensator, write down the moment T that the reactive power compensator controlled quentity controlled variable reaches the excision thresholding
3Reach the moment T that the reactive power compensator step switch withdraws from
4, reactive power compensator withdraws from dynamic response time Δ T
2=T
4-T
3
Controlled quentity controlled variable is one or more in reactive power, reactive current, power factor.
X1 is voltage, electric current, power factor, active power, reactive power, degree of unbalancedness.
According to power distribution network actual conditions and correlation technique requirement; the inventor has set up detection method of the present invention; can be used for checking function and the Performance Characteristics of low-voltage distribution network reactive power compensator; when the distribution line operational factor reached working value, whether check low-voltage reactive compensator capable switching, dynamic response and protection be in time correct.Specifically comprise function test part and performance test part; wherein function test partly comprises switching function test, over-voltage protecting function test, o-volt protection function test, harmonic protection function test, default-phase protection function test, and performance test partly comprises operating passing zero function test, sampling precision test, drops into the dynamic response characteristic test.Use the present invention as the requirement of standard market, control product quality, unified product standard, for electric power enterprise buying, examination and transformation low-voltage reactive compensator capable provide important technical basis, thus the operation of guarantee power distribution network economic stability.
Description of drawings
Fig. 1 is that the analog loopback wiring schematic diagram is detected in the laboratory of using detection method of the present invention.
Fig. 2 is the actual track test wiring schematic diagram of using detection method of the present invention.
Fig. 3 is reactive power compensation device fling-cut switch switching state-detection schematic diagram.
Fig. 4 is the reactive power compensator switching function test waveform schematic diagram (controlling physical quantity take power factor as example) of using detection method of the present invention.
Fig. 5 is the reactive power compensator over-voltage protecting function test waveform schematic diagram (controlling physical quantity take power factor as example) of using detection method of the present invention.
Fig. 6 is the reactive power compensator o-volt protection function test waveform schematic diagram (controlling physical quantity take power factor as example) of using detection method of the present invention.
Fig. 7 is the reactive power compensator harmonic protection function test waveform schematic diagram (the control physical quantity is power factor) of using detection method of the present invention.
Fig. 8 is the reactive power compensator default-phase protection function test waveform schematic diagram (controlling physical quantity take power factor as example) of using detection method of the present invention.
Fig. 9 is the reactive power compensator dynamic response test waveform schematic diagram (controlling physical quantity take power factor as example) of using detection method of the present invention.
Figure 10 is the experiment process figure that uses detection method of the present invention.
in figure: 1 server, 2 network switchs, 3 line signal acquisition modules, 4 without function signal generation standard source, 41 to 45 is respectively the current signal output module without function signal generation standard source, record mode piece, the voltage signal output module, communication module and other modules, 5 switch on-off signal acquisition module, 6 printers, 7 tested low-pressure reactive power compensating device assemblies, 71 to 78 is respectively the line current signal acquisition module of tested low-pressure reactive power compensating device assemblies, the line signal display module, the line voltage signal acquisition module, reactive power self-compensating controlling device, compensation components and parts (capacitor group), the capacitor switching switch, communication module and other modules, 8 working lines, 9 detection platform, 10 reactive compensation switching switches.
Embodiment
Fig. 1, Fig. 2 have shown that respectively the laboratory of using detection method of the present invention is detected and actual track detects the analog loopback wiring schematic diagram, and the effect of each module is as follows:
Server 1: be used for without the control of function signal generation standard source and to the collection of the number of delivering letters on line signal acquisition module and tested device fling-cut switch signal acquisition module, complete that instruction issues, data acquisition, information storage, data are processed and analyze, the report work such as generation automatically.
The network switch 2: for tested low-pressure reactive power compensating device assemblies fling-cut switch signal acquisition module, provide network access mode without communicating by letter between function signal generation standard source, line signal acquisition module and server.
Line signal acquisition module 3: be used for gathering electric current, voltage signal on actual low-voltage circuit, and the signal that collects is passed to server in real time.
Without function signal generation standard source 4: adopt high precision measure and control device tester as standard source, be used for simulating various high precision remote measurement values (comprising electric current, voltage) and supply with tested low-pressure reactive power compensating device assemblies; Be the kernal hardware equipment of detection platform without function signal generation standard source, can record ripple and possess ability with the server direct communication the signature waveform of simulation, can carry out the various instruction of server.
Switch on-off signal acquisition module 5: be used for gathering closure, the cut-off signal of low-pressure reactive power compensating device assemblies fling-cut switch, and the signal that collects is passed to server in real time.
Printer 6: for detection of the output of report.
In detection platform 9, control center's (server 1) is connected by netting twine with the network switch 2, the network switch 2 with all be connected by netting twine without function signal generation standard source 4, line signal acquisition module 3, switch on-off signal acquisition module 5, control center's (server 1) and printer 6 adopts Serial Port Lines to be connected.When the on-the-spot actual test of operation, current signal output module 41 adopts copper wires to be connected with the line current signal acquisition module 71 of tested low-pressure reactive power compensating device assemblies with line voltage signal acquisition module 73 respectively with voltage signal output module 43, and the signal acquisition module of reactive power compensator needs to disconnect with actual track; Switch on-off signal acquisition module 5 adopts copper wires to be connected with the capacitor switching switch 76 of tested low-pressure reactive power compensating device assemblies.Line signal acquisition module 3 adopts copper wires to be connected with sensor (CT and PT) on being arranged on working line 8.
The present invention proposes the detection method of a kind of low-pressure reactive power compensating device assemblies function and performance, because the control physical quantity of low-voltage reactive power compensation device (reactive power, reactive current, power factor or above-mentioned two and the combination of above physical quantity) has multiple combination, the test waveform that sets in advance also has multiple, the below gets and controls physical quantity is that power factor describes with regard to detection method, specific as follows:
Before following on-test; all need to select applicable oscillogram according to default input threshold value excision thresholding, the capacitor group number that can drop into, Protection parameters value, corresponding time parameter value; with waveform recording module records test waveform; check whether control physical quantity, time parameter reach the waveform requirement; as not reaching the expection waveform; continue to adjust test parameters; until till reaching; record the expection waveform three times; guarantee the stability of signature waveform, the experiment process figure of foundation detection method of the present invention sees Figure 10.
The function test part:
(1) switching function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; Difference according to the control physical quantity of low-voltage reactive power compensation device (reactive power, reactive current, power factor or above-mentioned two and the combination of above physical quantity), by setting different voltage, current value and phase place extent, make its controlled quentity controlled variable reach the input thresholding of this compensation system, observe the capacitor group and whether drop into successively (and recording this process waveform) by setting logic; Then adjust voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the excision thresholding of this compensation, observe the whether successively excision (above-mentioned whole process all needs wave recording) of capacitor group, judge thus whether this device possesses the switching function.Control physical quantity take power factor as example, the waveform schematic diagram as shown in Figure 4.
The measurement that reactive power compensation device actual dropped into signal constantly is in the following way: as shown in Figure 3, adding a voltage at the two ends of reactive power compensation device fling-cut switch is that U(U is generally very little, desirable DC=0.5-5V) DC voltage, and the resistance of connecting therein (the desirable 1-10 Ω of resistance R), recorded stream is through the electric current I of resistance.When the reactive power compensation device fling-cut switch does not drop into, I=0; When the reactive power compensation device fling-cut switch is input, I=U/R.Become U/R into judging the input moment of reactive power compensation device fling-cut switch by the identification electric current I by 0.In like manner, the actual excision of reactive power compensation device constantly signal measurement in the following way: as shown in Figure 3, adding a voltage at the two ends of reactive power compensation device fling-cut switch is that U(U is generally very little, desirable DC=0.5-5V) DC voltage, and the resistance of connecting therein (the desirable 1-10 Ω of resistance R), recorded stream is through the electric current I of resistance.When the reactive power compensation device fling-cut switch drops into, I=U/R; When the reactive power compensation device fling-cut switch excises, I=0; Become 0 excision that judges the reactive power compensation device fling-cut switch constantly by the identification electric current I by U/R.The switch of reactive power compensation device drops under the acquisition mode that excises signal same.
(2) over-voltage protecting function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; Difference according to the control physical quantity of low-voltage reactive power compensation device (reactive power, reactive current, power factor or above-mentioned two and the combination of above physical quantity), by setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of compensation system, make the capacitor group drop into successively (and recording this process waveform); Then increase magnitude of voltage, make it (be generally 1.07～1.20U greater than the setting voltage upper limit
nCan regulate); whether automatic blocking capacitor group drops into to observe reactive power compensator, and whether the capacitor group that has dropped into thus judges whether this device have over-voltage protecting function by setting-up time order complete resection successively (above-mentioned whole process all needs wave recording).Control physical quantity take power factor as example, the waveform schematic diagram as shown in Figure 5.
(3) o-volt protection function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; Difference according to the control physical quantity of low-voltage reactive power compensation device (reactive power, reactive current, power factor or above-mentioned two and the combination of above physical quantity), by setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of this compensation system, the capacitor group is dropped into successively; Then stop the input (being that the electric current and voltage value is 0) of voltage, electric current, observe the whether automatically excision (above-mentioned whole process all needs wave recording) of capacitor group, judge thus whether this device possesses the o-volt protection function.Control physical quantity take power factor as example, the waveform schematic diagram as shown in Figure 6.
(4) harmonic protection function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as ABC three-phase voltage, the current input signal of low-voltage reactive power compensation device; Difference according to the control physical quantity of low-voltage reactive power compensation device (reactive power, reactive current, power factor or above-mentioned two and the combination of above physical quantity), by setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of this compensation system, the capacitor group drops into 1 group at least; Then adjust the input waveform of voltage, electric current; make the harmonic wave total amount (aberration rate) of its control signal greater than setting value; whether observe the capacitor group can automatic blocking drop into; and excise successively capacitor group (above-mentioned whole process all needs wave recording), judge thus whether this device possesses the harmonic protection function.Control physical quantity take power factor as example, the waveform schematic diagram as shown in Figure 7.
(5) default-phase protection function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; Difference according to the control physical quantity of low-voltage reactive power compensation device (reactive power, reactive current, power factor or above-mentioned two and the combination of above physical quantity), by setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of this compensation system, the capacitor group is all dropped into successively; Then the input that stops successively A phase, B phase, C phase voltage electric current (is that the electric current and voltage value is 0; be about 1min interval time); observe successively the capacitor group of corresponding phase shortage circuit and whether automatically excise (above-mentioned whole process all needs wave recording), judge thus whether this device possesses default-phase protection function.Control physical quantity take power factor as example, the waveform schematic diagram as shown in Figure 8.
The performance test part
(1) operating passing zero function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; Difference according to the control physical quantity of low-voltage reactive power compensation device (reactive power, reactive current, power factor or above-mentioned two and the combination of above physical quantity), by setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of this compensation system, use the voltage waveform of oscillograph record circuit this moment, whether realize that from the voltage waveform analysis reactive power compensator voltage zero-cross drops into; In like manner, by setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the excision thresholding of this compensation system, use the oscillograph record current waveform of circuit at this moment, analyze reactive power compensator from current waveform and whether realize the current over-zero excision.Control physical quantity take power factor as example, the waveform schematic diagram as shown in Figure 4.
(2) sampling precision test
Adjusting makes its output X without function signal generation standard source output valve
1(voltage, electric current, power factor, active power, reactive power, degree of unbalancedness etc.), output is connected on the Input terminal block of reactive power compensator, and sampled value corresponding on the indication panel of reactive power compensator is X
2, reactive power compensation device sampling precision error amount η=| X
2-X
1|/X
1* 100%.
(3) drop into the dynamic response characteristic test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; Difference according to the control physical quantity of low-voltage reactive power compensation device (reactive power, reactive current, power factor or above-mentioned two and the combination of above physical quantity), by setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of compensation system, record the analog line waveform of this moment, and the actual incision signal of observation reactive power compensator, write down the reactive power compensator controlled quentity controlled variable and reach the moment T that drops into thresholding
1And the moment T of reactive power compensator step switch input
2, the input dynamic response time Δ T of reactive power compensation device
1=T
2-T
1In like manner, by setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the excision thresholding of compensation system, record the analog line waveform of this moment, and the actual signal that withdraws from of step switch of observation reactive power compensator, write down the moment T that the reactive power compensator controlled quentity controlled variable reaches the excision thresholding
3Reach the moment T that the reactive power compensator step switch withdraws from
4, reactive power compensator withdraws from dynamic response time Δ T
2=T
4-T
3Control physical quantity take power factor as example, the waveform schematic diagram as shown in Figure 9.
Claims (3)
1. the detection method of a low-pressure reactive power compensating device assemblies function and performance is characterized in that: comprise function test part and performance test part,
Described function test partly comprises following five:
(1) switching function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; By setting different voltage, current value and phase place extent, make its controlled quentity controlled variable reach the input thresholding of this compensation system, observe whether dropping into successively by setting logic of capacitor group; Then adjust voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the excision thresholding of this compensation, observe the whether successively excision of capacitor group, judge thus whether this device possesses the switching function;
(2) over-voltage protecting function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; By setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of compensation system, the capacitor group is dropped into successively; Then increase magnitude of voltage, make it greater than the setting voltage upper limit, whether automatic blocking capacitor group drops into to observe reactive power compensator, and whether the capacitor group that has dropped into judges whether this device has over-voltage protecting function thus by setting-up time order complete resection successively;
(3) o-volt protection function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; By setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of this compensation system, the capacitor group is dropped into successively; Then stop the input of voltage, electric current, observe the whether automatically excision of capacitor group, judge thus whether this device possesses the o-volt protection function;
(4) harmonic protection function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as ABC three-phase voltage, the current input signal of low-voltage reactive power compensation device; By setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of this compensation system, the capacitor group drops into 1 group at least; Then adjust the input waveform of voltage, electric current, make the harmonic wave total amount of its control signal greater than setting value, observe the capacitor group and whether can automatic blocking drop into, and excise successively the capacitor group, judge thus whether this device possesses the harmonic protection function;
(5) default-phase protection function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; By setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of this compensation system, the capacitor group is all dropped into successively; Then stop successively the input of A phase, B phase, C phase voltage electric current, observe successively the capacitor group of corresponding phase shortage circuit and whether automatically excise, judge thus whether this device possesses default-phase protection function;
Described performance test partly comprises following three:
(1) operating passing zero function test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, the analog ligand electric line is through voltage, the current signal of mutual inductor input reactive power compensator, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; By setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of this compensation system, use the oscillograph record voltage waveform of circuit at this moment, whether realize that from the voltage waveform analysis reactive power compensator voltage zero-cross drops into; In like manner, by setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the excision thresholding of this compensation system, use the oscillograph record current waveform of circuit at this moment, analyze reactive power compensator from current waveform and whether realize the current over-zero excision;
(2) sampling precision test
Adjusting makes its output X without function signal generation standard source output valve
1, output is connected on the Input terminal block of reactive power compensator, and sampled value corresponding on the indication panel of reactive power compensator is X
2, reactive power compensation device sampling precision error amount η=| X
2-X
1|/X
1* 100%;
(3) drop into the dynamic response characteristic test
Adjustment produces ABC three-phase voltage current signal without function signal generation standard source, with this signal respectively as voltage, the current input signal of low-voltage reactive power compensation device ABC three-phase; By setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the input thresholding of compensation system, record the analog line waveform of this moment, and observe the actual incision signal of reactive power compensator, write down the reactive power compensator controlled quentity controlled variable and reach the moment T that drops into thresholding
1And the moment T of reactive power compensator step switch input
2, the input dynamic response time Δ T of reactive power compensation device
1=T
2-T
1In like manner, by setting different voltage, electric current and phase place extent thereof, make its controlled quentity controlled variable reach the excision thresholding of compensation system, record the analog line waveform of this moment, and the actual signal that withdraws from of step switch of observation reactive power compensator, write down the moment T that the reactive power compensator controlled quentity controlled variable reaches the excision thresholding
3Reach the moment T that the reactive power compensator step switch withdraws from
4, reactive power compensator withdraws from dynamic response time Δ T
2=T
4-T
3
2. the detection method of low-pressure reactive power compensating device assemblies function according to claim 1 and performance, it is characterized in that: described controlled quentity controlled variable is one or more in reactive power, reactive current, power factor.
3. the detection method of low-pressure reactive power compensating device assemblies function according to claim 1 and performance, it is characterized in that: described X1 is voltage, electric current, power factor, active power, reactive power, degree of unbalancedness.
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| CN103592532A (en) * | 2013-10-21 | 2014-02-19 | 国家电网公司 | Method and system for detecting parameters of wind power plant static var compensator |
| CN103592531A (en) * | 2013-10-21 | 2014-02-19 | 国家电网公司 | Method and system for detecting parameters of wind power plant static var generator |
| CN104122477A (en) * | 2014-08-08 | 2014-10-29 | 国家电网公司 | Device and method for testing dynamic reactive power compensation device based on virtual instrument technology |
| CN106199286A (en) * | 2016-08-20 | 2016-12-07 | 国网山西省电力公司电力科学研究院 | Wind energy turbine set dynamic reactive compensation device response speed method of testing |
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| CN107329023A (en) * | 2017-08-11 | 2017-11-07 | 杭州得诚电力科技股份有限公司 | The detecting system and detection method of a kind of reactive power compensator |
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| CN113267686A (en) * | 2020-12-02 | 2021-08-17 | 山东恒瑞德电力设备有限公司 | Method for detecting performance of low-voltage complete reactive power compensation device |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103592532A (en) * | 2013-10-21 | 2014-02-19 | 国家电网公司 | Method and system for detecting parameters of wind power plant static var compensator |
| CN103592531A (en) * | 2013-10-21 | 2014-02-19 | 国家电网公司 | Method and system for detecting parameters of wind power plant static var generator |
| CN103592532B (en) * | 2013-10-21 | 2016-03-02 | 国家电网公司 | A kind of parameter detection method of wind energy turbine set Static Var Compensator and system |
| CN103592531B (en) * | 2013-10-21 | 2016-03-02 | 国家电网公司 | A kind of parameter detection method of wind energy turbine set static reacance generator and system |
| CN104122477A (en) * | 2014-08-08 | 2014-10-29 | 国家电网公司 | Device and method for testing dynamic reactive power compensation device based on virtual instrument technology |
| 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 |
| CN106885953B (en) * | 2015-12-16 | 2019-07-30 | 中国二十冶集团有限公司 | The adjustment method of automatic reactive compensated controller |
| CN106199286A (en) * | 2016-08-20 | 2016-12-07 | 国网山西省电力公司电力科学研究院 | Wind energy turbine set dynamic reactive compensation device response speed method of testing |
| CN106199286B (en) * | 2016-08-20 | 2019-01-11 | 国网山西省电力公司电力科学研究院 | Wind power plant dynamic reactive compensation device response speed test method |
| CN107329023A (en) * | 2017-08-11 | 2017-11-07 | 杭州得诚电力科技股份有限公司 | The detecting system and detection method of a kind of reactive power compensator |
| 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 |
| CN113267686A (en) * | 2020-12-02 | 2021-08-17 | 山东恒瑞德电力设备有限公司 | Method for detecting performance of low-voltage complete reactive power compensation device |
| CN113778048A (en) * | 2021-08-06 | 2021-12-10 | 安徽南瑞继远电网技术有限公司 | Special test system of reactive compensation controller |
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